[#296 ] container: Increase default expiration time

Signed-off-by: Alex Vanin <a.vanin@yadro.com>
[#291 ] Debian packaging
2022-11-23 20:20:33 +03:00 · 2022-11-17 16:05:45 +03:00
71 changed files with 1778 additions and 878 deletions
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---
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-## Expected Behavior
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-## Current Behavior
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-<!--- reproduce this bug. -->
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-1.
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-## Regression
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-<!-- If Yes, optionally please include version or commit id or PR# that caused this regression, if you have these details. -->
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-## Your Environment
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---
-
-## Is your feature request related to a problem? Please describe.
-<!--- A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] -->
-
-## Describe the solution you'd like
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-
-## Describe alternatives you've considered
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+             d="m 0,0 h -21.128 c 0.261,-2.84 1.205,-5.044 2.83,-6.613 1.625,-1.57 3.727,-2.355 6.305,-2.355 2.054,0 3.763,0.356 5.128,1.065 1.363,0.71 2.288,1.738 2.774,3.083 l 3.755,-1.961 c -1.121,-1.981 -2.616,-3.495 -4.484,-4.54 -1.868,-1.046 -4.259,-1.569 -7.173,-1.569 -4.223,0 -7.538,1.289 -9.948,3.867 -2.41,2.578 -3.615,6.146 -3.615,10.704 0,4.558 1.149,8.127 3.447,10.705 2.298,2.578 5.557,3.867 9.779,3.867 2.615,0 4.876,-0.58 6.782,-1.738 1.905,-1.158 3.343,-2.728 4.315,-4.707 C -0.262,7.827 0.224,5.605 0.224,3.139 0.224,2.092 0.149,1.046 0,0 m -18.298,10.144 c -1.513,-1.457 -2.438,-3.512 -2.775,-6.165 h 16.982 c -0.3,2.615 -1.159,4.661 -2.578,6.137 -1.42,1.476 -3.307,2.214 -5.661,2.214 -2.466,0 -4.455,-0.728 -5.968,-2.186"
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+             id="path446" />
+        </g>
+        <g
+           id="g448"
+           transform="translate(1057.8818,276.4246)">
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+             d="m 0,0 c 2.41,-2.578 3.615,-6.147 3.615,-10.705 0,-4.558 -1.205,-8.126 -3.615,-10.704 -2.41,-2.578 -5.726,-3.867 -9.948,-3.867 -4.222,0 -7.537,1.289 -9.947,3.867 -2.41,2.578 -3.615,6.146 -3.615,10.704 0,4.558 1.205,8.127 3.615,10.705 2.41,2.578 5.725,3.867 9.947,3.867 C -5.726,3.867 -2.41,2.578 0,0 m -16.617,-2.858 c -1.607,-1.906 -2.41,-4.522 -2.41,-7.847 0,-3.326 0.803,-5.94 2.41,-7.846 1.607,-1.905 3.83,-2.858 6.669,-2.858 2.839,0 5.063,0.953 6.67,2.858 1.606,1.906 2.41,4.52 2.41,7.846 0,3.325 -0.804,5.941 -2.41,7.847 C -4.885,-0.953 -7.109,0 -9.948,0 c -2.839,0 -5.062,-0.953 -6.669,-2.858"
+             style="fill:#000033;fill-opacity:1;fill-rule:nonzero;stroke:none"
+             id="path450" />
+        </g>
+      </g>
+    </g>
+    <g
+       id="g452"
+       transform="matrix(0.35277777,0,0,-0.35277777,5.8329581,6.5590171)">
+      <path
+         d="m 0,0 0.001,-38.946 25.286,-9.076 V -8.753 L 52.626,1.321 27.815,10.207 Z"
+         style="fill:#00e599;fill-opacity:1;fill-rule:nonzero;stroke:none"
+         id="path454" />
+    </g>
+    <g
+       id="g456"
+       transform="matrix(0.35277777,0,0,-0.35277777,15.479008,10.041927)">
+      <path
+         d="M 0,0 V -21.306 L 25.293,-30.364 25.282,9.347 Z"
+         style="fill:#00b091;fill-opacity:1;fill-rule:nonzero;stroke:none"
+         id="path458" />
    </g>
  </g>
 </svg>
--- a/.gitignore
+++ b/.gitignore
@ -4,7 +4,6 @@
 config.json
 /vendor/
 .idea
-/bin/

 # debhelpers
 **/.debhelper
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -1,25 +1,11 @@
 # Changelog
-Changelog for FrostFS Contract
+Changelog for NeoFS Contract

 ## [Unreleased]

 ### Added
 ### Changed
-### Removed
 ### Updated
-### Fixed
-### Updating from v0.17.0
-
-## [0.17.0] - 2023-04-13 - Furtwängler
-
-### Added
-### Changed
-### Removed
- Notary disabled code from all contracts (#7)
-
-### Updated
- `neo-go` to `v0.99.4`
-
 ### Fixed
 ### Updating from v0.16.0

--- a/15
+++ b/15
@ -1,9 +1,7 @@
 #!/usr/bin/make -f

 SHELL=bash
-# GOBIN is used only to install neo-go and allows to override
-# the location of written binary.
-export GOBIN ?= $(shell pwd)/bin
+GOBIN ?= $(shell go env GOPATH)/bin
 NEOGO ?= $(GOBIN)/cli
 VERSION ?= $(shell git describe --tags --dirty --match "v*" --always --abbrev=8 2>/dev/null || cat VERSION 2>/dev/null || echo "develop")

@ -22,8 +20,8 @@ all: sidechain mainnet
 sidechain: alphabet morph nns

 alphabet_sc = alphabet
-morph_sc = audit balance container frostfsid netmap proxy reputation subnet
-mainnet_sc = frostfs processing
+morph_sc = audit balance container neofsid netmap proxy reputation subnet
+mainnet_sc = neofs processing
 nns_sc = nns

 define sc_template
@ -55,7 +53,6 @@ test:
 clean:
 	find . -name '*.nef' -exec rm -rf {} \;
 	find . -name 'config.json' -exec rm -rf {} \;
-	rm -rf ./bin/

 mr_proper: clean
 	for sc in $(alphabet_sc); do\
@ -63,13 +60,13 @@ mr_proper: clean
 	done

 archive: build
-	@tar --transform "s|^./|frostfs-contract-$(VERSION)/|" \
-		-czf frostfs-contract-$(VERSION).tar.gz \
+	@tar --transform "s|^./|neofs-contract-$(VERSION)/|" \
+		-czf neofs-contract-$(VERSION).tar.gz \
 		$(shell find . -name '*.nef' -o -name 'config.json')

 # Package for Debian
 debpackage:
-	dch --package frostfs-contract \
+	dch --package neofs-contract \
 			--controlmaint \
 			--newversion $(PKG_VERSION) \
 			--distribution $(OS_RELEASE) \
--- a/README.md
+++ b/README.md
@ -1,21 +1,21 @@
 <p align="center">
-<img src="./.github/logo.svg" width="500px" alt="FrostFS">
+<img src="./.github/logo.svg" width="500px" alt="NeoFS">
 </p>
 <p align="center">
-  <a href="https://frostfs.info">FrostFS</a> related smart contracts.
+  <a href="https://fs.neo.org">NeoFS</a> related smart contracts.
 </p>

 ---

 # Overview

-FrostFS-Contract contains all FrostFS related contracts written for
+NeoFS-Contract contains all NeoFS related contracts written for
 [neo-go](https://github.com/nspcc-dev/neo-go) compiler. These contracts
 are deployed both in the mainchain and the sidechain.

 Mainchain contracts:

- frostfs
+- neofs
 - processing

 Sidechain contracts:
@ -24,7 +24,7 @@ Sidechain contracts:
 - audit
 - balance
 - container
- frostfsid
+- neofsid
 - netmap
 - nns
 - proxy
@ -51,13 +51,13 @@ $ make all
 /home/user/go/bin/cli contract compile -i audit -c audit/config.yml -m audit/config.json -o audit/audit_contract.nef
 /home/user/go/bin/cli contract compile -i balance -c balance/config.yml -m balance/config.json -o balance/balance_contract.nef
 /home/user/go/bin/cli contract compile -i container -c container/config.yml -m container/config.json -o container/container_contract.nef
-/home/user/go/bin/cli contract compile -i frostfsid -c frostfsid/config.yml -m frostfsid/config.json -o frostfsid/frostfsid_contract.nef
+/home/user/go/bin/cli contract compile -i neofsid -c neofsid/config.yml -m neofsid/config.json -o neofsid/neofsid_contract.nef
 /home/user/go/bin/cli contract compile -i netmap -c netmap/config.yml -m netmap/config.json -o netmap/netmap_contract.nef
 /home/user/go/bin/cli contract compile -i proxy -c proxy/config.yml -m proxy/config.json -o proxy/proxy_contract.nef
 /home/user/go/bin/cli contract compile -i reputation -c reputation/config.yml -m reputation/config.json -o reputation/reputation_contract.nef
 /home/user/go/bin/cli contract compile -i subnet -c subnet/config.yml -m subnet/config.json -o subnet/subnet_contract.nef
 /home/user/go/bin/cli contract compile -i nns -c nns/config.yml -m nns/config.json -o nns/nns_contract.nef
-/home/user/go/bin/cli contract compile -i frostfs -c frostfs/config.yml -m frostfs/config.json -o frostfs/frostfs_contract.nef
+/home/user/go/bin/cli contract compile -i neofs -c neofs/config.yml -m neofs/config.json -o neofs/neofs_contract.nef
 /home/user/go/bin/cli contract compile -i processing -c processing/config.yml -m processing/config.json -o processing/processing_contract.nef
 ```

@ -84,9 +84,24 @@ Smartcontract tests reside in `tests/` directory. To execute test suite
 after applying changes, simply run `make test`.
 ```
 $ make test
-ok      git.frostfs.info/TrueCloudLab/frostfs-contract/tests       0.462s
+ok      github.com/nspcc-dev/neofs-contract/tests       0.462s
 ```

+# NeoFS API compatibility
+
+| neofs-contract version |                                                                                           supported NeoFS API versions                                                                                           |
+|:----------------------:|:----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------:|
+|         v0.9.x         |                                    [v2.7.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.7.0), [v2.8.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.8.0)                                    |
+|        v0.10.x         |                                    [v2.7.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.7.0), [v2.8.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.8.0)                                    |
+|        v0.11.x         | [v2.7.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.7.0), [v2.8.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.8.0), [v2.9.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.9.0) |
+|        v0.12.x         |                                                                      [v2.10.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.10.0)                                                                      |
+|        v0.13.x         |                                                                      [v2.11.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.11.0)                                                                      |
+|        v0.14.x         |                                                                      [v2.11.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.11.0)                                                                      |
+|        v0.15.x         |                                  [v2.11.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.11.0), [v2.12.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.12.0)                                  |
+|        v0.15.x         |                                  [v2.11.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.11.0), [v2.12.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.12.0)                                  |
+|        v0.16.x         |                                                                      [v2.14.0](https://github.com/nspcc-dev/neofs-api/releases/tag/v2.14.0)                                                                      |
+
+
 # License

 This project is licensed under the GPLv3 License - see the 
--- a/2
+++ b/2
@ -1 +1 @@
-v0.18.0
+v0.16.0
--- a/alphabet/alphabet_contract.go
+++ b/alphabet/alphabet_contract.go
@ -1,14 +1,15 @@
 package alphabet

 import (
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"github.com/nspcc-dev/neo-go/pkg/interop"
 	"github.com/nspcc-dev/neo-go/pkg/interop/contract"
+	"github.com/nspcc-dev/neo-go/pkg/interop/native/crypto"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/gas"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/neo"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
+	"github.com/nspcc-dev/neofs-contract/common"
 )

 const (
@ -33,9 +34,6 @@ func OnNEP17Payment(from interop.Hash160, amount int, data interface{}) {

 func _deploy(data interface{}, isUpdate bool) {
 	ctx := storage.GetContext()
-
-	common.RmAndCheckNotaryDisabledKey(data, notaryDisabledKey)
-
 	if isUpdate {
 		args := data.([]interface{})
 		common.CheckVersion(args[len(args)-1].(int))
@ -43,7 +41,6 @@ func _deploy(data interface{}, isUpdate bool) {
 	}

 	args := data.(struct {
-		//TODO(@acid-ant): #9 remove notaryDisabled in future version
 		notaryDisabled bool
 		addrNetmap     interop.Hash160
 		addrProxy      interop.Hash160
@ -52,7 +49,7 @@ func _deploy(data interface{}, isUpdate bool) {
 		total          int
 	})

-	if len(args.addrNetmap) != interop.Hash160Len || len(args.addrProxy) != interop.Hash160Len {
+	if len(args.addrNetmap) != interop.Hash160Len || !args.notaryDisabled && len(args.addrProxy) != interop.Hash160Len {
 		panic("incorrect length of contract script hash")
 	}

@ -62,6 +59,13 @@ func _deploy(data interface{}, isUpdate bool) {
 	storage.Put(ctx, indexKey, args.index)
 	storage.Put(ctx, totalKey, args.total)

+	// initialize the way to collect signatures
+	storage.Put(ctx, notaryDisabledKey, args.notaryDisabled)
+	if args.notaryDisabled {
+		common.InitVote(ctx)
+		runtime.Log(args.name + " notary disabled")
+	}
+
 	runtime.Log(args.name + " contract initialized")
 }

@ -116,11 +120,15 @@ func checkPermission(ir []interop.PublicKey) bool {
 // and proxy contract. It can be invoked only by an Alphabet node of the Inner Ring.
 //
 // To produce GAS, an alphabet contract transfers all available NEO from the contract
-// account to itself. 50% of the GAS in the contract account
+// account to itself. If notary is enabled, 50% of the GAS in the contract account
 // are transferred to proxy contract. 43.75% of the GAS are equally distributed
 // among all Inner Ring nodes. Remaining 6.25% of the GAS stay in the contract.
+//
+// If notary is disabled, 87.5% of the GAS are equally distributed among all
+// Inner Ring nodes. Remaining 12.5% of the GAS stay in the contract.
 func Emit() {
 	ctx := storage.GetReadOnlyContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

 	alphabet := common.AlphabetNodes()
 	if !checkPermission(alphabet) {
@ -135,6 +143,7 @@ func Emit() {

 	gasBalance := gas.BalanceOf(contractHash)

+	if !notaryDisabled {
 		proxyAddr := storage.Get(ctx, proxyKey).(interop.Hash160)

 		proxyGas := gasBalance / 2
@ -149,8 +158,16 @@ func Emit() {
 		gasBalance -= proxyGas

 		runtime.Log("utility token has been emitted to proxy contract")
+	}

-	innerRing := common.InnerRingNodes()
+	var innerRing []interop.PublicKey
+
+	if notaryDisabled {
+		netmapContract := storage.Get(ctx, netmapKey).(interop.Hash160)
+		innerRing = common.InnerRingNodesFromNetmap(netmapContract)
+	} else {
+		innerRing = common.InnerRingNodes()
+	}

 	gasPerNode := gasBalance * 7 / 8 / len(innerRing)

@ -175,10 +192,25 @@ func Emit() {
 // alphabet contracts) should vote for a new committee.
 func Vote(epoch int, candidates []interop.PublicKey) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
 	index := index(ctx)
 	name := name(ctx)

-	common.CheckAlphabetWitness()
+	var ( // for invocation collection without notary
+		alphabet []interop.PublicKey
+		nodeKey  []byte
+	)
+
+	if notaryDisabled {
+		alphabet = common.AlphabetNodes()
+		nodeKey = common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			panic("invalid invoker")
+		}
+	} else {
+		multiaddr := common.AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}

 	curEpoch := currentEpoch(ctx)
 	if epoch != curEpoch {
@ -188,6 +220,18 @@ func Vote(epoch int, candidates []interop.PublicKey) {
 	candidate := candidates[index%len(candidates)]
 	address := runtime.GetExecutingScriptHash()

+	if notaryDisabled {
+		threshold := len(alphabet)*2/3 + 1
+		id := voteID(epoch, candidates)
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	}
+
 	ok := neo.Vote(address, candidate)
 	if ok {
 		runtime.Log(name + ": successfully voted for validator")
@ -196,6 +240,21 @@ func Vote(epoch int, candidates []interop.PublicKey) {
 	}
 }

+func voteID(epoch interface{}, args []interop.PublicKey) []byte {
+	var (
+		result     []byte
+		epochBytes = epoch.([]byte)
+	)
+
+	result = append(result, epochBytes...)
+
+	for i := range args {
+		result = append(result, args[i]...)
+	}
+
+	return crypto.Sha256(result)
+}
+
 // Name returns the Glagolitic name of the contract.
 func Name() string {
 	ctx := storage.GetReadOnlyContext()
--- a/alphabet/config.yml
+++ b/alphabet/config.yml
@ -1,4 +1,4 @@
-name: "Alphabet"
+name: "NeoFS Alphabet"
 safemethods: ["gas", "neo", "name", "version"]
 permissions:
  - methods: ["update", "transfer", "vote"]
--- a/alphabet/doc.go
+++ b/alphabet/doc.go
@ -1,5 +1,5 @@
 /*
-Alphabet contract is a contract deployed in FrostFS sidechain.
+Alphabet contract is a contract deployed in NeoFS sidechain.

 Alphabet contract is designed to support GAS production and vote for new
 validators in the sidechain. NEO token is required to produce GAS and vote for
@ -14,7 +14,7 @@ one of the alphabetical contracts to emit GAS. To vote for a new list of side
 chain committee, alphabet nodes of the Inner Ring create multisignature transactions
 for each alphabet contract.

-# Contract notifications
+Contract notifications

 Alphabet contract does not produce notifications to process.
 */
--- a/audit/audit_contract.go
+++ b/audit/audit_contract.go
@ -1,7 +1,6 @@
 package audit

 import (
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"github.com/nspcc-dev/neo-go/pkg/interop"
 	"github.com/nspcc-dev/neo-go/pkg/interop/contract"
 	"github.com/nspcc-dev/neo-go/pkg/interop/iterator"
@ -9,6 +8,7 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
+	"github.com/nspcc-dev/neofs-contract/common"
 )

 type (
@ -44,9 +44,6 @@ const (

 func _deploy(data interface{}, isUpdate bool) {
 	ctx := storage.GetContext()
-
-	common.RmAndCheckNotaryDisabledKey(data, notaryDisabledKey)
-
 	if isUpdate {
 		args := data.([]interface{})
 		common.CheckVersion(args[len(args)-1].(int))
@ -54,7 +51,6 @@ func _deploy(data interface{}, isUpdate bool) {
 	}

 	args := data.(struct {
-		//TODO(@acid-ant): #9 remove notaryDisabled in future version
 		notaryDisabled bool
 		addrNetmap     interop.Hash160
 	})
@ -65,6 +61,12 @@ func _deploy(data interface{}, isUpdate bool) {

 	storage.Put(ctx, netmapContractKey, args.addrNetmap)

+	// initialize the way to collect signatures
+	storage.Put(ctx, notaryDisabledKey, args.notaryDisabled)
+	if args.notaryDisabled {
+		runtime.Log("audit contract notary disabled")
+	}
+
 	runtime.Log("audit contract initialized")
 }

@ -88,8 +90,16 @@ func Update(script []byte, manifest []byte, data interface{}) {
 // in later epochs.
 func Put(rawAuditResult []byte) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

-	innerRing := common.InnerRingNodes()
+	var innerRing []interop.PublicKey
+
+	if notaryDisabled {
+		netmapContract := storage.Get(ctx, netmapContractKey).(interop.Hash160)
+		innerRing = common.InnerRingNodesFromNetmap(netmapContract)
+	} else {
+		innerRing = common.InnerRingNodes()
+	}

 	hdr := newAuditHeader(rawAuditResult)
 	presented := false
@ -172,6 +182,7 @@ func list(it iterator.Iterator) [][]byte {

 	ignore := [][]byte{
 		[]byte(netmapContractKey),
+		[]byte(notaryDisabledKey),
 	}

 loop:
--- a/audit/config.yml
+++ b/audit/config.yml
@ -1,4 +1,4 @@
-name: "Audit"
+name: "NeoFS Audit"
 safemethods: ["get", "list", "listByEpoch", "listByCID", "listByNode", "version"]
 permissions:
  - methods: ["update"]
--- a/audit/doc.go
+++ b/audit/doc.go
@ -1,5 +1,5 @@
 /*
-Audit contract is a contract deployed in FrostFS sidechain.
+Audit contract is a contract deployed in NeoFS sidechain.

 Inner Ring nodes perform audit of the registered containers during every epoch.
 If a container contains StorageGroup objects, an Inner Ring node initializes
@ -15,7 +15,7 @@ nodes send a stable marshaled version of the DataAuditResult structure to the
 contract. When Alphabet nodes of the Inner Ring perform settlement operations,
 they make a list and get these AuditResultStructures from the audit contract.

-# Contract notifications
+Contract notifications

 Audit contract does not produce notifications to process.
 */
--- a/balance/balance_contract.go
+++ b/balance/balance_contract.go
@ -1,7 +1,6 @@
 package balance

 import (
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"github.com/nspcc-dev/neo-go/pkg/interop"
 	"github.com/nspcc-dev/neo-go/pkg/interop/contract"
 	"github.com/nspcc-dev/neo-go/pkg/interop/iterator"
@ -9,6 +8,7 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
+	"github.com/nspcc-dev/neofs-contract/common"
 )

 type (
@ -22,7 +22,7 @@ type (
 		CirculationKey string
 	}

-	// Account structure stores metadata of each FrostFS balance account.
+	// Account structure stores metadata of each NeoFS balance account.
 	Account struct {
 		// Active balance
 		Balance int
@ -35,7 +35,7 @@ type (
 )

 const (
-	symbol      = "FROSTFS"
+	symbol      = "NEOFS"
 	decimals    = 12
 	circulation = "MainnetGAS"

@ -60,9 +60,6 @@ func init() {

 func _deploy(data interface{}, isUpdate bool) {
 	ctx := storage.GetContext()
-
-	common.RmAndCheckNotaryDisabledKey(data, notaryDisabledKey)
-
 	if isUpdate {
 		args := data.([]interface{})
 		common.CheckVersion(args[len(args)-1].(int))
@ -70,7 +67,6 @@ func _deploy(data interface{}, isUpdate bool) {
 	}

 	args := data.(struct {
-		//TODO(@acid-ant): #9 remove notaryDisabled in future version
 		notaryDisabled bool
 		addrNetmap     interop.Hash160
 		addrContainer  interop.Hash160
@ -83,6 +79,13 @@ func _deploy(data interface{}, isUpdate bool) {
 	storage.Put(ctx, netmapContractKey, args.addrNetmap)
 	storage.Put(ctx, containerContractKey, args.addrContainer)

+	// initialize the way to collect signatures
+	storage.Put(ctx, notaryDisabledKey, args.notaryDisabled)
+	if args.notaryDisabled {
+		common.InitVote(ctx)
+		runtime.Log("balance contract notary disabled")
+	}
+
 	runtime.Log("balance contract initialized")
 }

@ -98,32 +101,32 @@ func Update(script []byte, manifest []byte, data interface{}) {
 	runtime.Log("balance contract updated")
 }

-// Symbol is a NEP-17 standard method that returns FROSTFS token symbol.
+// Symbol is a NEP-17 standard method that returns NEOFS token symbol.
 func Symbol() string {
 	return token.Symbol
 }

-// Decimals is a NEP-17 standard method that returns precision of FrostFS
+// Decimals is a NEP-17 standard method that returns precision of NeoFS
 // balances.
 func Decimals() int {
 	return token.Decimals
 }

 // TotalSupply is a NEP-17 standard method that returns total amount of main
-// chain GAS in FrostFS network.
+// chain GAS in NeoFS network.
 func TotalSupply() int {
 	ctx := storage.GetReadOnlyContext()
 	return token.getSupply(ctx)
 }

-// BalanceOf is a NEP-17 standard method that returns FrostFS balance of the specified
+// BalanceOf is a NEP-17 standard method that returns NeoFS balance of the specified
 // account.
 func BalanceOf(account interop.Hash160) int {
 	ctx := storage.GetReadOnlyContext()
 	return token.balanceOf(ctx, account)
 }

-// Transfer is a NEP-17 standard method that transfers FrostFS balance from one
+// Transfer is a NEP-17 standard method that transfers NeoFS balance from one
 // account to another. It can be invoked only by the account owner.
 //
 // It produces Transfer and TransferX notifications. TransferX notification
@ -133,7 +136,7 @@ func Transfer(from, to interop.Hash160, amount int, data interface{}) bool {
 	return token.transfer(ctx, from, to, amount, false, nil)
 }

-// TransferX is a method for FrostFS balance to be transferred from one account to
+// TransferX is a method for NeoFS balance to be transferred from one account to
 // another. It can be invoked by the account owner or by Alphabet nodes.
 //
 // It produces Transfer and TransferX notifications.
@ -143,8 +146,42 @@ func Transfer(from, to interop.Hash160, amount int, data interface{}) bool {
 // Inner Ring with multisignature.
 func TransferX(from, to interop.Hash160, amount int, details []byte) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

-	common.CheckAlphabetWitness()
+	var ( // for invocation collection without notary
+		alphabet     []interop.PublicKey
+		nodeKey      []byte
+		indirectCall bool
+	)
+
+	if notaryDisabled {
+		alphabet = common.AlphabetNodes()
+		nodeKey = common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			panic("this method must be invoked from inner ring")
+		}
+
+		indirectCall = common.FromKnownContract(
+			ctx,
+			runtime.GetCallingScriptHash(),
+			containerContractKey,
+		)
+	} else {
+		multiaddr := common.AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}
+
+	if notaryDisabled && !indirectCall {
+		threshold := len(alphabet)*2/3 + 1
+		id := common.InvokeID([]interface{}{from, to, amount}, []byte("transfer"))
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	}

 	result := token.transfer(ctx, from, to, amount, true, details)
 	if !result {
@ -160,12 +197,27 @@ func TransferX(from, to interop.Hash160, amount int, details []byte) {
 // It produces Lock, Transfer and TransferX notifications.
 //
 // Lock method is invoked by Alphabet nodes of the Inner Ring when they process
-// Withdraw notification from FrostFS contract. This should transfer assets
+// Withdraw notification from NeoFS contract. This should transfer assets
 // to a new lock account that won't be used for anything beside Unlock and Burn.
 func Lock(txDetails []byte, from, to interop.Hash160, amount, until int) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

-	common.CheckAlphabetWitness()
+	var ( // for invocation collection without notary
+		alphabet []interop.PublicKey
+		nodeKey  []byte
+	)
+
+	if notaryDisabled {
+		alphabet = common.AlphabetNodes()
+		nodeKey = common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			panic("this method must be invoked from inner ring")
+		}
+	} else {
+		multiaddr := common.AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}

 	details := common.LockTransferDetails(txDetails)

@ -175,6 +227,18 @@ func Lock(txDetails []byte, from, to interop.Hash160, amount, until int) {
 		Parent:  from,
 	}

+	if notaryDisabled {
+		threshold := len(alphabet)*2/3 + 1
+		id := common.InvokeID([]interface{}{txDetails}, []byte("lock"))
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	}
+
 	common.SetSerialized(ctx, to, lockAccount)

 	result := token.transfer(ctx, from, to, amount, true, details)
@ -194,8 +258,21 @@ func Lock(txDetails []byte, from, to interop.Hash160, amount, until int) {
 // It produces Transfer and TransferX notifications.
 func NewEpoch(epochNum int) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

-	common.CheckAlphabetWitness()
+	if notaryDisabled {
+		indirectCall := common.FromKnownContract(
+			ctx,
+			runtime.GetCallingScriptHash(),
+			netmapContractKey,
+		)
+		if !indirectCall {
+			panic("this method must be invoked from inner ring")
+		}
+	} else {
+		multiaddr := common.AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}

 	it := storage.Find(ctx, []byte{}, storage.KeysOnly)
 	for iterator.Next(it) {
@ -223,16 +300,43 @@ func NewEpoch(epochNum int) {
 // It produces Mint, Transfer and TransferX notifications.
 //
 // Mint method is invoked by Alphabet nodes of the Inner Ring when they process
-// Deposit notification from FrostFS contract. Before that, Alphabet nodes should
+// Deposit notification from NeoFS contract. Before that, Alphabet nodes should
 // synchronize precision of mainchain GAS contract and Balance contract.
-// Mint increases total supply of NEP-17 compatible FrostFS token.
+// Mint increases total supply of NEP-17 compatible NeoFS token.
 func Mint(to interop.Hash160, amount int, txDetails []byte) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

-	common.CheckAlphabetWitness()
+	var ( // for invocation collection without notary
+		alphabet []interop.PublicKey
+		nodeKey  []byte
+	)
+
+	if notaryDisabled {
+		alphabet = common.AlphabetNodes()
+		nodeKey = common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			panic("this method must be invoked from inner ring")
+		}
+	} else {
+		multiaddr := common.AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}

 	details := common.MintTransferDetails(txDetails)

+	if notaryDisabled {
+		threshold := len(alphabet)*2/3 + 1
+		id := common.InvokeID([]interface{}{txDetails}, []byte("mint"))
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	}
+
 	ok := token.transfer(ctx, nil, to, amount, true, details)
 	if !ok {
 		panic("can't transfer assets")
@ -251,18 +355,45 @@ func Mint(to interop.Hash160, amount int, txDetails []byte) {
 // It produces Burn, Transfer and TransferX notifications.
 //
 // Burn method is invoked by Alphabet nodes of the Inner Ring when they process
-// Cheque notification from FrostFS contract. It means that locked assets have been
+// Cheque notification from NeoFS contract. It means that locked assets have been
 // transferred to the user in the mainchain, therefore the lock account should be destroyed.
 // Before that, Alphabet nodes should synchronize precision of mainchain GAS
 // contract and Balance contract. Burn decreases total supply of NEP-17
-// compatible FrostFS token.
+// compatible NeoFS token.
 func Burn(from interop.Hash160, amount int, txDetails []byte) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

-	common.CheckAlphabetWitness()
+	var ( // for invocation collection without notary
+		alphabet []interop.PublicKey
+		nodeKey  []byte
+	)
+
+	if notaryDisabled {
+		alphabet = common.AlphabetNodes()
+		nodeKey = common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			panic("this method must be invoked from inner ring")
+		}
+	} else {
+		multiaddr := common.AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}

 	details := common.BurnTransferDetails(txDetails)

+	if notaryDisabled {
+		threshold := len(alphabet)*2/3 + 1
+		id := common.InvokeID([]interface{}{txDetails}, []byte("burn"))
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	}
+
 	ok := token.transfer(ctx, from, nil, amount, true, details)
 	if !ok {
 		panic("can't transfer assets")
--- a/balance/config.yml
+++ b/balance/config.yml
@ -1,4 +1,4 @@
-name: "Balance"
+name: "NeoFS Balance"
 supportedstandards: ["NEP-17"]
 safemethods: ["balanceOf", "decimals", "symbol", "totalSupply", "version"]
 permissions:
--- a/balance/doc.go
+++ b/balance/doc.go
@ -1,7 +1,7 @@
 /*
-Balance contract is a contract deployed in FrostFS sidechain.
+Balance contract is a contract deployed in NeoFS sidechain.

-Balance contract stores all FrostFS account balances. It is a NEP-17 compatible
+Balance contract stores all NeoFS account balances. It is a NEP-17 compatible
 contract, so it can be tracked and controlled by N3 compatible network
 monitors and wallet software.

@ -10,12 +10,12 @@ data audit settlements or container fee payments. It is inefficient to make such
 small payment transactions in the mainchain. To process small transfers, balance
 contract has higher (12) decimal precision than native GAS contract.

-FrostFS balances are synchronized with mainchain operations. Deposit produces
-minting of FROSTFS tokens in Balance contract. Withdraw locks some FROSTFS tokens
-in a special lock account. When FrostFS contract transfers GAS assets back to the
+NeoFS balances are synchronized with mainchain operations. Deposit produces
+minting of NEOFS tokens in Balance contract. Withdraw locks some NEOFS tokens
+in a special lock account. When NeoFS contract transfers GAS assets back to the
 user, the lock account is destroyed with burn operation.

-# Contract notifications
+Contract notifications

 Transfer notification. This is a NEP-17 standard notification.

@ -41,9 +41,9 @@ TransferX notification. This is an enhanced transfer notification with details.

 Lock notification. This notification is produced when a lock account is
 created. It contains information about the mainchain transaction that has produced
-the asset lock, the address of the lock account and the FrostFS epoch number until which the
+the asset lock, the address of the lock account and the NeoFS epoch number until which the
 lock account is valid. Alphabet nodes of the Inner Ring catch notification and initialize
-Cheque method invocation of FrostFS contract.
+Cheque method invocation of NeoFS contract.

  Lock:
    - name: txID
@ -66,8 +66,9 @@ replenished from deposit in the mainchain.
   - name: amount
     type: Integer

+
 Burn notification. This notification is produced after user balance is reduced
-when FrostFS contract has transferred GAS assets back to the user.
+when NeoFS contract has transferred GAS assets back to the user.

  Burn:
    - name: from
--- a/common/common.go
+++ b/common/common.go
@ -1,26 +0,0 @@
-package common
-
-import (
-	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
-	"github.com/nspcc-dev/neo-go/pkg/interop/util"
-)
-
-const (
-	panicMsgForNotaryDisabledEnv = "contract not applicable for notary-disabled environment"
-)
-
-// BytesEqual compares two slices of bytes by wrapping them into strings,
-// which is necessary with new util.Equals interop behaviour, see neo-go#1176.
-func BytesEqual(a []byte, b []byte) bool {
-	return util.Equals(string(a), string(b))
-}
-
-// RmAndCheckNotaryDisabledKey remove notary disabled key from storage and
-// panic in notary disabled environment
-func RmAndCheckNotaryDisabledKey(data interface{}, key interface{}) {
-	//TODO(@acid-ant): #9 remove notaryDisabled from args in future version
-	storage.Delete(storage.GetContext(), key)
-	if data.([]interface{})[0].(bool) {
-		panic(panicMsgForNotaryDisabledEnv)
-	}
-}
--- a/common/ir.go
+++ b/common/ir.go
@ -6,12 +6,28 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/ledger"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/neo"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/roles"
+	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 )

 type IRNode struct {
 	PublicKey interop.PublicKey
 }

+const irListMethod = "innerRingList"
+
+// InnerRingInvoker returns the public key of the inner ring node that has invoked the contract.
+// Work around for environments without notary support.
+func InnerRingInvoker(ir []interop.PublicKey) interop.PublicKey {
+	for i := 0; i < len(ir); i++ {
+		node := ir[i]
+		if runtime.CheckWitness(node) {
+			return node
+		}
+	}
+
+	return nil
+}
+
 // InnerRingNodes return a list of inner ring nodes from state validator role
 // in the sidechain.
 func InnerRingNodes() []interop.PublicKey {
@ -19,6 +35,18 @@ func InnerRingNodes() []interop.PublicKey {
 	return roles.GetDesignatedByRole(roles.NeoFSAlphabet, uint32(blockHeight+1))
 }

+// InnerRingNodesFromNetmap gets a list of inner ring nodes through
+// calling "innerRingList" method of smart contract.
+// Work around for environments without notary support.
+func InnerRingNodesFromNetmap(sc interop.Hash160) []interop.PublicKey {
+	nodes := contract.Call(sc, irListMethod, contract.ReadOnly).([]IRNode)
+	pubs := []interop.PublicKey{}
+	for i := range nodes {
+		pubs = append(pubs, nodes[i].PublicKey)
+	}
+	return pubs
+}
+
 // AlphabetNodes returns a list of alphabet nodes from committee in the sidechain.
 func AlphabetNodes() []interop.PublicKey {
 	return neo.GetCommittee()
--- a/common/storage.go
+++ b/common/storage.go
@ -5,6 +5,15 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
 )

+func GetList(ctx storage.Context, key interface{}) [][]byte {
+	data := storage.Get(ctx, key)
+	if data != nil {
+		return std.Deserialize(data.([]byte)).([][]byte)
+	}
+
+	return [][]byte{}
+}
+
 // SetSerialized serializes data and puts it into contract storage.
 func SetSerialized(ctx storage.Context, key interface{}, value interface{}) {
 	data := std.Serialize(value)
--- a/common/version.go
+++ b/common/version.go
@ -4,15 +4,15 @@ import "github.com/nspcc-dev/neo-go/pkg/interop/native/std"

 const (
 	major = 0
-	minor = 18
+	minor = 16
 	patch = 0

 	// Versions from which an update should be performed.
 	// These should be used in a group (so prevMinor can be equal to minor if there are
 	// any migration routines.
 	prevMajor = 0
-	prevMinor = 16
-	prevPatch = 0
+	prevMinor = 15
+	prevPatch = 4

 	Version = major*1_000_000 + minor*1_000 + patch

--- a/common/vote.go
+++ b/common/vote.go
@ -0,0 +1,149 @@
+package common
+
+import (
+	"github.com/nspcc-dev/neo-go/pkg/interop"
+	"github.com/nspcc-dev/neo-go/pkg/interop/native/crypto"
+	"github.com/nspcc-dev/neo-go/pkg/interop/native/ledger"
+	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
+	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
+	"github.com/nspcc-dev/neo-go/pkg/interop/util"
+)
+
+type Ballot struct {
+	// ID of the voting decision.
+	ID []byte
+
+	// Public keys of the already voted inner ring nodes.
+	Voters []interop.PublicKey
+
+	// Height of block with the last vote.
+	Height int
+}
+
+const voteKey = "ballots"
+
+const blockDiff = 20 // change base on performance evaluation
+
+func InitVote(ctx storage.Context) {
+	SetSerialized(ctx, voteKey, []Ballot{})
+}
+
+// Vote adds ballot for the decision with a specific 'id' and returns the amount
+// of unique voters for that decision.
+func Vote(ctx storage.Context, id, from []byte) int {
+	var (
+		newCandidates []Ballot
+		candidates    = getBallots(ctx)
+		found         = -1
+		blockHeight   = ledger.CurrentIndex()
+	)
+
+	for i := 0; i < len(candidates); i++ {
+		cnd := candidates[i]
+
+		if blockHeight-cnd.Height > blockDiff {
+			continue
+		}
+
+		if BytesEqual(cnd.ID, id) {
+			voters := cnd.Voters
+
+			for j := range voters {
+				if BytesEqual(voters[j], from) {
+					return len(voters)
+				}
+			}
+
+			voters = append(voters, from)
+			cnd = Ballot{ID: id, Voters: voters, Height: blockHeight}
+			found = len(voters)
+		}
+
+		newCandidates = append(newCandidates, cnd)
+	}
+
+	if found < 0 {
+		voters := []interop.PublicKey{from}
+		newCandidates = append(newCandidates, Ballot{
+			ID:     id,
+			Voters: voters,
+			Height: blockHeight})
+		found = 1
+	}
+
+	SetSerialized(ctx, voteKey, newCandidates)
+
+	return found
+}
+
+// RemoveVotes clears ballots of the decision that has been accepted by
+// inner ring nodes.
+func RemoveVotes(ctx storage.Context, id []byte) {
+	var (
+		candidates = getBallots(ctx)
+		index      int
+	)
+
+	for i := 0; i < len(candidates); i++ {
+		cnd := candidates[i]
+		if BytesEqual(cnd.ID, id) {
+			index = i
+			break
+		}
+	}
+
+	util.Remove(candidates, index)
+	SetSerialized(ctx, voteKey, candidates)
+}
+
+// getBallots returns a deserialized slice of vote ballots.
+func getBallots(ctx storage.Context) []Ballot {
+	data := storage.Get(ctx, voteKey)
+	if data != nil {
+		return std.Deserialize(data.([]byte)).([]Ballot)
+	}
+
+	return []Ballot{}
+}
+
+// BytesEqual compares two slices of bytes by wrapping them into strings,
+// which is necessary with new util.Equals interop behaviour, see neo-go#1176.
+func BytesEqual(a []byte, b []byte) bool {
+	return util.Equals(string(a), string(b))
+}
+
+// InvokeID returns hashed value of prefix and args concatenation. Iy is used to
+// identify different ballots.
+func InvokeID(args []interface{}, prefix []byte) []byte {
+	for i := range args {
+		arg := args[i].([]byte)
+		prefix = append(prefix, arg...)
+	}
+
+	return crypto.Sha256(prefix)
+}
+
+/*
+   Check if the invocation is made from known container or audit contracts.
+   This is necessary because calls from these contracts require to do transfer
+   without signature collection (1 invoke transfer).
+
+   IR1, IR2, IR3, IR4 -(4 invokes)-> [ Container Contract ] -(1 invoke)-> [ Balance Contract ]
+
+   We can do 1 invoke transfer if:
+   - invokation has happened from inner ring node,
+   - it is indirect invocation from another smart-contract.
+
+   However, there is a possible attack, when a malicious inner ring node creates
+   a malicious smart-contract in the morph chain to do indirect call.
+
+   MaliciousIR -(1 invoke)-> [ Malicious Contract ] -(1 invoke)-> [ Balance Contract ]
+
+   To prevent that, we have to allow 1 invoke transfer from authorised well-known
+   smart-contracts, that will be set up at `Init` method.
+*/
+
+func FromKnownContract(ctx storage.Context, caller interop.Hash160, key string) bool {
+	addr := storage.Get(ctx, key).(interop.Hash160)
+	return BytesEqual(caller, addr)
+}
--- a/common/witness.go
+++ b/common/witness.go
@ -16,8 +16,8 @@ var (

 // CheckAlphabetWitness checks witness of the passed caller.
 // It panics with ErrAlphabetWitnessFailed message on fail.
-func CheckAlphabetWitness() {
-	checkWitnessWithPanic(AlphabetAddress(), ErrAlphabetWitnessFailed)
+func CheckAlphabetWitness(caller []byte) {
+	checkWitnessWithPanic(caller, ErrAlphabetWitnessFailed)
 }

 // CheckOwnerWitness checks witness of the passed caller.
--- a/container/config.yml
+++ b/container/config.yml
@ -1,5 +1,5 @@
-name: "Container"
-safemethods: ["count", "containersOf", "get", "owner", "list", "eACL", "getContainerSize", "listContainerSizes", "iterateContainerSizes", "version"]
+name: "NeoFS Container"
+safemethods: ["count", "get", "owner", "list", "eACL", "getContainerSize", "listContainerSizes", "version"]
 permissions:
  - methods: ["update", "addKey", "transferX",
               "register", "addRecord", "deleteRecords"]
--- a/container/container_contract.go
+++ b/container/container_contract.go
@ -1,7 +1,6 @@
 package container

 import (
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"github.com/nspcc-dev/neo-go/pkg/interop"
 	"github.com/nspcc-dev/neo-go/pkg/interop/contract"
 	"github.com/nspcc-dev/neo-go/pkg/interop/convert"
@ -11,6 +10,7 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
+	"github.com/nspcc-dev/neofs-contract/common"
 )

 type (
@ -44,7 +44,7 @@ type (
 )

 const (
-	frostfsIDContractKey = "identityScriptHash"
+	neofsIDContractKey = "identityScriptHash"
 	balanceContractKey = "balanceScriptHash"
 	netmapContractKey  = "netmapScriptHash"
 	nnsContractKey     = "nnsScriptHash"
@ -62,8 +62,6 @@ const (

 	singleEstimatePrefix = "est"
 	estimateKeyPrefix    = "cnr"
-	containerKeyPrefix   = 'x'
-	ownerKeyPrefix       = 'o'
 	estimatePostfixSize  = 10
 	// CleanupDelta contains the number of the last epochs for which container estimations are present.
 	CleanupDelta = 3
@ -92,37 +90,13 @@ func OnNEP11Payment(a interop.Hash160, b int, c []byte, d interface{}) {

 func _deploy(data interface{}, isUpdate bool) {
 	ctx := storage.GetContext()
-
-	common.RmAndCheckNotaryDisabledKey(data, notaryDisabledKey)
-
 	if isUpdate {
 		args := data.([]interface{})
 		common.CheckVersion(args[len(args)-1].(int))
-
-		it := storage.Find(ctx, []byte{}, storage.None)
-		for iterator.Next(it) {
-			item := iterator.Value(it).(struct {
-				key   []byte
-				value []byte
-			})
-
-			// Migrate container.
-			if len(item.key) == containerIDSize {
-				storage.Delete(ctx, item.key)
-				storage.Put(ctx, append([]byte{containerKeyPrefix}, item.key...), item.value)
-			}
-
-			// Migrate owner-cid map.
-			if len(item.key) == 25 /* owner id size */ +containerIDSize {
-				storage.Delete(ctx, item.key)
-				storage.Put(ctx, append([]byte{ownerKeyPrefix}, item.key...), item.value)
-			}
-		}
 		return
 	}

 	args := data.(struct {
-		//TODO(@acid-ant): #9 remove notaryDisabled in future version
 		notaryDisabled bool
 		addrNetmap     interop.Hash160
 		addrBalance    interop.Hash160
@ -139,10 +113,17 @@ func _deploy(data interface{}, isUpdate bool) {

 	storage.Put(ctx, netmapContractKey, args.addrNetmap)
 	storage.Put(ctx, balanceContractKey, args.addrBalance)
-	storage.Put(ctx, frostfsIDContractKey, args.addrID)
+	storage.Put(ctx, neofsIDContractKey, args.addrID)
 	storage.Put(ctx, nnsContractKey, args.addrNNS)
 	storage.Put(ctx, nnsRootKey, args.nnsRoot)

+	// initialize the way to collect signatures
+	storage.Put(ctx, notaryDisabledKey, args.notaryDisabled)
+	if args.notaryDisabled {
+		common.InitVote(ctx)
+		runtime.Log("container contract notary disabled")
+	}
+
 	// add NNS root for container alias domains
 	registerNiceNameTLD(args.addrNNS, args.nnsRoot)

@ -194,10 +175,11 @@ func PutNamed(container []byte, signature interop.Signature,
 	publicKey interop.PublicKey, token []byte,
 	name, zone string) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

 	ownerID := ownerFromBinaryContainer(container)
 	containerID := crypto.Sha256(container)
-	frostfsIDContractAddr := storage.Get(ctx, frostfsIDContractKey).(interop.Hash160)
+	neofsIDContractAddr := storage.Get(ctx, neofsIDContractKey).(interop.Hash160)
 	cnr := Container{
 		value: container,
 		sig:   signature,
@ -234,7 +216,26 @@ func PutNamed(container []byte, signature interop.Signature,
 		panic("insufficient balance to create container")
 	}

-	common.CheckAlphabetWitness()
+	if notaryDisabled {
+		nodeKey := common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			runtime.Notify("containerPut", container, signature, publicKey, token)
+			return
+		}
+
+		threshold := len(alphabet)*2/3 + 1
+		id := common.InvokeID([]interface{}{container, signature, publicKey}, []byte("put"))
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	} else {
+		multiaddr := common.AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}
 	// todo: check if new container with unique container id

 	details := common.ContainerFeeTransferDetails(containerID)
@ -271,7 +272,7 @@ func PutNamed(container []byte, signature interop.Signature,
 	}

 	if len(token) == 0 { // if container created directly without session
-		contract.Call(frostfsIDContractAddr, "addKey", contract.All, ownerID, [][]byte{publicKey})
+		contract.Call(neofsIDContractAddr, "addKey", contract.All, ownerID, [][]byte{publicKey})
 	}

 	runtime.Log("added new container")
@ -313,13 +314,34 @@ func checkNiceNameAvailable(nnsContractAddr interop.Hash160, domain string) bool
 // If the container doesn't exist, it panics with NotFoundError.
 func Delete(containerID []byte, signature interop.Signature, token []byte) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

 	ownerID := getOwnerByID(ctx, containerID)
 	if ownerID == nil {
 		return
 	}

-	common.CheckAlphabetWitness()
+	if notaryDisabled {
+		alphabet := common.AlphabetNodes()
+		nodeKey := common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			runtime.Notify("containerDelete", containerID, signature, token)
+			return
+		}
+
+		threshold := len(alphabet)*2/3 + 1
+		id := common.InvokeID([]interface{}{containerID, signature}, []byte("delete"))
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	} else {
+		multiaddr := common.AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}

 	key := append([]byte(nnsHasAliasKey), containerID...)
 	domain := storage.Get(ctx, key).(string)
@ -369,24 +391,17 @@ func Owner(containerID []byte) []byte {
 func Count() int {
 	count := 0
 	ctx := storage.GetReadOnlyContext()
-	it := storage.Find(ctx, []byte{containerKeyPrefix}, storage.KeysOnly)
+	it := storage.Find(ctx, []byte{}, storage.KeysOnly)
 	for iterator.Next(it) {
+		key := iterator.Value(it).([]byte)
+		// V2 format
+		if len(key) == containerIDSize {
 			count++
 		}
+	}
 	return count
 }

-// ContainersOf iterates over all container IDs owned by the specified owner.
-// If owner is nil, it iterates over all containers.
-func ContainersOf(owner []byte) iterator.Iterator {
-	ctx := storage.GetReadOnlyContext()
-	key := []byte{ownerKeyPrefix}
-	if len(owner) != 0 {
-		key = append(key, owner...)
-	}
-	return storage.Find(ctx, key, storage.ValuesOnly)
-}
-
 // List method returns a list of all container IDs owned by the specified owner.
 func List(owner []byte) [][]byte {
 	ctx := storage.GetReadOnlyContext()
@ -397,7 +412,7 @@ func List(owner []byte) [][]byte {

 	var list [][]byte

-	it := storage.Find(ctx, append([]byte{ownerKeyPrefix}, owner...), storage.ValuesOnly)
+	it := storage.Find(ctx, owner, storage.ValuesOnly)
 	for iterator.Next(it) {
 		id := iterator.Value(it).([]byte)
 		list = append(list, id)
@ -419,6 +434,7 @@ func List(owner []byte) [][]byte {
 // If the container doesn't exist, it panics with NotFoundError.
 func SetEACL(eACL []byte, signature interop.Signature, publicKey interop.PublicKey, token []byte) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

 	// V2 format
 	// get container ID
@ -431,7 +447,27 @@ func SetEACL(eACL []byte, signature interop.Signature, publicKey interop.PublicK
 		panic(NotFoundError)
 	}

-	common.CheckAlphabetWitness()
+	if notaryDisabled {
+		alphabet := common.AlphabetNodes()
+		nodeKey := common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			runtime.Notify("setEACL", eACL, signature, publicKey, token)
+			return
+		}
+
+		threshold := len(alphabet)*2/3 + 1
+		id := common.InvokeID([]interface{}{eACL}, []byte("setEACL"))
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	} else {
+		multiaddr := common.AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}

 	rule := ExtendedACL{
 		value: eACL,
@ -515,7 +551,7 @@ func GetContainerSize(id []byte) containerSizes {
 }

 // ListContainerSizes method returns the IDs of container size estimations
-// that have been registered for the specified epoch.
+// that has been registered for the specified epoch.
 func ListContainerSizes(epoch int) [][]byte {
 	ctx := storage.GetReadOnlyContext()

@ -546,25 +582,25 @@ func ListContainerSizes(epoch int) [][]byte {
 	return result
 }

-// IterateContainerSizes method returns iterator over container size estimations
-// that have been registered for the specified epoch.
-func IterateContainerSizes(epoch int) iterator.Iterator {
-	ctx := storage.GetReadOnlyContext()
-
-	var buf interface{} = epoch
-
-	key := []byte(estimateKeyPrefix)
-	key = append(key, buf.([]byte)...)
-
-	return storage.Find(ctx, key, storage.DeserializeValues)
-}
-
 // NewEpoch method removes all container size estimations from epoch older than
 // epochNum + 3. It can be invoked only by NewEpoch method of the Netmap contract.
 func NewEpoch(epochNum int) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

-	common.CheckAlphabetWitness()
+	if notaryDisabled {
+		indirectCall := common.FromKnownContract(
+			ctx,
+			runtime.GetCallingScriptHash(),
+			netmapContractKey,
+		)
+		if !indirectCall {
+			panic("method must be invoked by inner ring")
+		}
+	} else {
+		multiaddr := common.AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}

 	cleanupContainers(ctx, epochNum)
 }
@ -572,7 +608,36 @@ func NewEpoch(epochNum int) {
 // StartContainerEstimation method produces StartEstimation notification.
 // It can be invoked only by Alphabet nodes of the Inner Ring.
 func StartContainerEstimation(epoch int) {
-	common.CheckAlphabetWitness()
+	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
+
+	var ( // for invocation collection without notary
+		alphabet []interop.PublicKey
+		nodeKey  []byte
+	)
+
+	if notaryDisabled {
+		alphabet = common.AlphabetNodes()
+		nodeKey = common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			panic("method must be invoked by inner ring")
+		}
+	} else {
+		multiaddr := common.AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}
+
+	if notaryDisabled {
+		threshold := len(alphabet)*2/3 + 1
+		id := common.InvokeID([]interface{}{epoch}, []byte("startEstimation"))
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	}

 	runtime.Notify("StartEstimation", epoch)
 	runtime.Log("notification has been produced")
@ -581,7 +646,36 @@ func StartContainerEstimation(epoch int) {
 // StopContainerEstimation method produces StopEstimation notification.
 // It can be invoked only by Alphabet nodes of the Inner Ring.
 func StopContainerEstimation(epoch int) {
-	common.CheckAlphabetWitness()
+	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
+
+	var ( // for invocation collection without notary
+		alphabet []interop.PublicKey
+		nodeKey  []byte
+	)
+
+	if notaryDisabled {
+		alphabet = common.AlphabetNodes()
+		nodeKey = common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			panic("method must be invoked by inner ring")
+		}
+	} else {
+		multiaddr := common.AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}
+
+	if notaryDisabled {
+		threshold := len(alphabet)*2/3 + 1
+		id := common.InvokeID([]interface{}{epoch}, []byte("stopEstimation"))
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	}

 	runtime.Notify("StopEstimation", epoch)
 	runtime.Log("notification has been produced")
@ -593,31 +687,30 @@ func Version() int {
 }

 func addContainer(ctx storage.Context, id, owner []byte, container Container) {
-	containerListKey := append([]byte{ownerKeyPrefix}, owner...)
-	containerListKey = append(containerListKey, id...)
+	containerListKey := append(owner, id...)
 	storage.Put(ctx, containerListKey, id)

-	idKey := append([]byte{containerKeyPrefix}, id...)
-	common.SetSerialized(ctx, idKey, container)
+	common.SetSerialized(ctx, id, container)
 }

 func removeContainer(ctx storage.Context, id []byte, owner []byte) {
-	containerListKey := append([]byte{ownerKeyPrefix}, owner...)
-	containerListKey = append(containerListKey, id...)
+	containerListKey := append(owner, id...)
 	storage.Delete(ctx, containerListKey)

-	storage.Delete(ctx, append([]byte{containerKeyPrefix}, id...))
+	storage.Delete(ctx, id)
 }

 func getAllContainers(ctx storage.Context) [][]byte {
 	var list [][]byte

-	it := storage.Find(ctx, []byte{containerKeyPrefix}, storage.KeysOnly|storage.RemovePrefix)
+	it := storage.Find(ctx, []byte{}, storage.KeysOnly)
 	for iterator.Next(it) {
 		key := iterator.Value(it).([]byte) // it MUST BE `storage.KeysOnly`
 		// V2 format
+		if len(key) == containerIDSize {
 			list = append(list, key)
 		}
+	}

 	return list
 }
@ -633,7 +726,7 @@ func getEACL(ctx storage.Context, cid []byte) ExtendedACL {
 }

 func getContainer(ctx storage.Context, cid []byte) Container {
-	data := storage.Get(ctx, append([]byte{containerKeyPrefix}, cid...))
+	data := storage.Get(ctx, cid)
 	if data != nil {
 		return std.Deserialize(data.([]byte)).(Container)
 	}
--- a/container/doc.go
+++ b/container/doc.go
@ -1,5 +1,5 @@
 /*
-Container contract is a contract deployed in FrostFS sidechain.
+Container contract is a contract deployed in NeoFS sidechain.

 Container contract stores and manages containers, extended ACLs and container
 size estimations. Contract does not perform sanity or signature checks of
@ -7,7 +7,7 @@ containers or extended ACLs, it is done by Alphabet nodes of the Inner Ring.
 Alphabet nodes approve it by invoking the same Put or SetEACL methods with
 the same arguments.

-# Contract notifications
+Contract notifications

 containerPut notification. This notification is produced when a user wants to
 create a new container. Alphabet nodes of the Inner Ring catch the notification and
--- a/debian/changelog
+++ b/debian/changelog
@ -1,5 +1,5 @@
-frostfs-contract (0.0.0) stable; urgency=medium
+neofs-contract (0.0.0) stable; urgency=medium

  * Initial release

- -- TrueCloudLab <tech@frostfs.info>  Wed, 24 Aug 2022 18:29:49 +0300
+ -- NeoSPCC <tech@nspcc.ru>  Wed, 24 Aug 2022 18:29:49 +0300
--- a/debian/control
+++ b/debian/control
@ -1,23 +1,23 @@
-Source: frostfs-contract
+Source: neofs-contract
 Section: misc
 Priority: optional
-Maintainer: FrostFS <tech@frostfs.info>
+Maintainer: NeoSPCC <tech@nspcc.ru>
 Build-Depends: debhelper-compat (= 13), git, devscripts, neo-go
 Standards-Version: 4.5.1
 Homepage: https://fs.neo.org/
-Vcs-Git: https://git.frostfs.info/TrueCloudLab/frostfs-contract.git
-Vcs-Browser: https://git.frostfs.info/TrueCloudLab/frostfs-contract
+Vcs-Git: https://github.com/nspcc-dev/neofs-contract.git
+Vcs-Browser: https://github.com/nspcc-dev/neofs-contract

-Package: frostfs-contract
+Package: neofs-contract
 Architecture: all
 Depends: ${misc:Depends}
-Description: FrostFS-Contract contains all FrostFS related contracts.
+Description: NeoFS-Contract contains all NeoFS related contracts.
 Contracts are written for neo-go compiler.
 These contracts are deployed both in the mainchain and the sidechain.
 .
 Mainchain contracts:
 .
- - frostfs
+ - neofs
 - processing
 .
 Sidechain contracts:
@ -26,7 +26,7 @@ Description: FrostFS-Contract contains all FrostFS related contracts.
 - audit
 - balance
 - container
- - frostfsid
+ - neofsid
 - netmap
 - nns
 - proxy
--- a/debian/copyright
+++ b/debian/copyright
@ -1,10 +1,9 @@
 Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
-Upstream-Name: frostfs-contract
-Upstream-Contact: tech@frostfs.info
-Source: https://git.frostfs.info/TrueCloudLab/frostfs-contract
+Upstream-Name: neofs-contract
+Upstream-Contact: tech@nspcc.ru
+Source: https://github.com/nspcc-dev/neofs-contract

 Files: *
-Copyright: 2022 TrueCloudLab (@TrueCloudLab)
 Copyright: 2018-2022 NeoSPCC (@nspcc-dev)

 License: GPL-3
--- a/debian/postinst.ex
+++ b/debian/postinst.ex
@ -1,5 +1,5 @@
 #!/bin/sh
-# postinst script for frostfs-contract
+# postinst script for neofs-contract
 #
 # see: dh_installdeb(1)

--- a/debian/postrm.ex
+++ b/debian/postrm.ex
@ -1,5 +1,5 @@
 #!/bin/sh
-# postrm script for frostfs-contract
+# postrm script for neofs-contract
 #
 # see: dh_installdeb(1)

--- a/debian/preinst.ex
+++ b/debian/preinst.ex
@ -1,5 +1,5 @@
 #!/bin/sh
-# preinst script for frostfs-contract
+# preinst script for neofs-contract
 #
 # see: dh_installdeb(1)

--- a/debian/prerm.ex
+++ b/debian/prerm.ex
@ -1,5 +1,5 @@
 #!/bin/sh
-# prerm script for frostfs-contract
+# prerm script for neofs-contract
 #
 # see: dh_installdeb(1)

--- a/debian/rules
+++ b/debian/rules
@ -1,6 +1,6 @@
 #!/usr/bin/make -f

-SERVICE = frostfs-contract
+SERVICE = neofs-contract
 export NEOGO ?= $(shell command -v neo-go)

 %:
@ -11,8 +11,8 @@ override_dh_auto_build:
 		make all

 override_dh_auto_install:
-		install -D -m 0750 -d debian/$(SERVICE)/var/lib/frostfs/contract
-		find . -maxdepth 2 \( -name '*.nef' -o -name 'config.json' \) -exec cp --parents \{\} debian/$(SERVICE)/var/lib/frostfs/contract \;
+		install -D -m 0750 -d debian/$(SERVICE)/var/lib/neofs/contract
+		find . -maxdepth 2 \( -name '*.nef' -o -name 'config.json' \) -exec cp --parents \{\} debian/$(SERVICE)/var/lib/neofs/contract \;

 override_dh_installchangelogs:
 		dh_installchangelogs -k CHANGELOG.md
--- a/frostfs/doc.go
+++ b/frostfs/doc.go
@ -1,84 +0,0 @@
-/*
-FrostFS contract is a contract deployed in FrostFS mainchain.
-
-FrostFS contract is an entry point to FrostFS users. This contract stores all FrostFS
-related GAS, registers new Inner Ring candidates and produces notifications
-to control the sidechain.
-
-While mainchain committee controls the list of Alphabet nodes in native
-RoleManagement contract, FrostFS can't change more than 1\3 keys at a time.
-FrostFS contract contains the actual list of Alphabet nodes in the sidechain.
-
-Network configuration is also stored in FrostFS contract. All changes in
-configuration are mirrored in the sidechain with notifications.
-
-# Contract notifications
-
-Deposit notification. This notification is produced when user transfers native
-GAS to the FrostFS contract address. The same amount of FROSTFS token will be
-minted in Balance contract in the sidechain.
-
-	Deposit:
-	  - name: from
-	    type: Hash160
-	  - name: amount
-	    type: Integer
-	  - name: receiver
-	    type: Hash160
-	  - name: txHash
-	    type: Hash256
-
-Withdraw notification. This notification is produced when a user wants to
-withdraw GAS from the internal FrostFS balance and has paid fee for that.
-
-	Withdraw:
-	  - name: user
-	    type: Hash160
-	  - name: amount
-	    type: Integer
-	  - name: txHash
-	    type: Hash256
-
-Cheque notification. This notification is produced when FrostFS contract
-has successfully transferred assets back to the user after withdraw.
-
-	Cheque:
-	  - name: id
-	    type: ByteArray
-	  - name: user
-	    type: Hash160
-	  - name: amount
-	    type: Integer
-	  - name: lockAccount
-	    type: ByteArray
-
-Bind notification. This notification is produced when a user wants to bind
-public keys with the user account (OwnerID). Keys argument is an array of ByteArray.
-
-	Bind:
-	  - name: user
-	    type: ByteArray
-	  - name: keys
-	    type: Array
-
-Unbind notification. This notification is produced when a user wants to unbind
-public keys with the user account (OwnerID). Keys argument is an array of ByteArray.
-
-	Unbind:
-	  - name: user
-	    type: ByteArray
-	  - name: keys
-	    type: Array
-
-SetConfig notification. This notification is produced when Alphabet nodes update
-FrostFS network configuration value.
-
-	SetConfig
-	  - name: id
-	    type: ByteArray
-	  - name: key
-	    type: ByteArray
-	  - name: value
-	    type: ByteArray
-*/
-package frostfs
--- a/frostfsid/doc.go
+++ b/frostfsid/doc.go
@ -1,20 +0,0 @@
-/*
-FrostFSID contract is a contract deployed in FrostFS sidechain.
-
-FrostFSID contract is used to store connection between an OwnerID and its public keys.
-OwnerID is a 25-byte N3 wallet address that can be produced from a public key.
-It is one-way conversion. In simple cases, FrostFS verifies ownership by checking
-signature and relation between a public key and an OwnerID.
-
-In more complex cases, a user can use public keys unrelated to the OwnerID to maintain
-secure access to the data. FrostFSID contract stores relation between an OwnerID and
-arbitrary public keys. Data owner can bind a public key with its account or unbind it
-by invoking Bind or Unbind methods of FrostFS contract in the mainchain. After that,
-Alphabet nodes produce multisigned AddKey and RemoveKey invocations of FrostFSID
-contract.
-
-# Contract notifications
-
-FrostFSID contract does not produce notifications to process.
-*/
-package frostfsid
--- a/go.mod
+++ b/go.mod
@ -1,10 +1,10 @@
-module git.frostfs.info/TrueCloudLab/frostfs-contract
+module github.com/nspcc-dev/neofs-contract

 go 1.14

 require (
 	github.com/mr-tron/base58 v1.2.0
-	github.com/nspcc-dev/neo-go v0.99.4
-	github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20220927123257-24c107e3a262
+	github.com/nspcc-dev/neo-go v0.99.2
+	github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20220809123759-3094d3e0c14b
 	github.com/stretchr/testify v1.7.0
 )
--- a/go.sum
+++ b/go.sum
@ -75,11 +75,8 @@ github.com/cespare/xxhash/v2 v2.1.0/go.mod h1:dgIUBU3pDso/gPgZ1osOZ0iQf77oPR28Tj
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
 github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/chzyer/logex v1.1.10 h1:Swpa1K6QvQznwJRcfTfQJmTE72DqScAa40E+fbHEXEE=
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
-github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e h1:fY5BOSpyZCqRo5OhCuC+XN+r/bBCmeuuJtjz+bCNIf8=
 github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
-github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1 h1:q763qf9huN11kDQavWsoZXJNW3xEE4JJyHa5Q25/sd8=
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
@ -105,7 +102,6 @@ github.com/etcd-io/bbolt v1.3.3/go.mod h1:ZF2nL25h33cCyBtcyWeZ2/I3HQOfTP+0PIEvHj
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fatih/color v1.12.0/go.mod h1:ELkj/draVOlAH/xkhN6mQ50Qd0MPOk5AAr3maGEBuJM=
 github.com/flynn-archive/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:rZfgFAXFS/z/lEd6LJmf9HVZ1LkgYiHx5pHhV5DR16M=
-github.com/frankban/quicktest v1.14.0 h1:+cqqvzZV87b4adx/5ayVOaYZ2CrvM4ejQvUdBzPPUss=
 github.com/frankban/quicktest v1.14.0/go.mod h1:NeW+ay9A/U67EYXNFA1nPE8e/tnQv/09mUdL/ijj8og=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
@ -213,7 +209,6 @@ github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1
 github.com/jstemmer/go-junit-report v0.9.1/go.mod h1:Brl9GWCQeLvo8nXZwPNNblvFj/XSXhF0NWZEnDohbsk=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
 github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
-github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 h1:Z9n2FFNUXsshfwJMBgNA0RU6/i7WVaAegv3PtuIHPMs=
 github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51/go.mod h1:CzGEWj7cYgsdH8dAjBGEr58BoE7ScuLd+fwFZ44+/x8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/kkdai/bstream v0.0.0-20161212061736-f391b8402d23/go.mod h1:J+Gs4SYgM6CZQHDETBtE9HaSEkGmuNXF86RwHhHUvq4=
@ -251,29 +246,23 @@ github.com/nspcc-dev/dbft v0.0.0-20191209120240-0d6b7568d9ae/go.mod h1:3FjXOoHmA
 github.com/nspcc-dev/dbft v0.0.0-20200117124306-478e5cfbf03a/go.mod h1:/YFK+XOxxg0Bfm6P92lY5eDSLYfp06XOdL8KAVgXjVk=
 github.com/nspcc-dev/dbft v0.0.0-20200219114139-199d286ed6c1/go.mod h1:O0qtn62prQSqizzoagHmuuKoz8QMkU3SzBoKdEvm3aQ=
 github.com/nspcc-dev/dbft v0.0.0-20210721160347-1b03241391ac/go.mod h1:U8MSnEShH+o5hexfWJdze6uMFJteP0ko7J2frO7Yu1Y=
-github.com/nspcc-dev/dbft v0.0.0-20220902113116-58a5e763e647 h1:handGBjqVzRx7HD6152zsP8ZRxw083zCMbN0IlUaPQk=
-github.com/nspcc-dev/dbft v0.0.0-20220902113116-58a5e763e647/go.mod h1:g9xisXmX9NP9MjioaTe862n9SlZTrP+6PVUWLBYOr98=
+github.com/nspcc-dev/dbft v0.0.0-20220629112714-fd49ca59d354/go.mod h1:U8MSnEShH+o5hexfWJdze6uMFJteP0ko7J2frO7Yu1Y=
 github.com/nspcc-dev/go-ordered-json v0.0.0-20210915112629-e1b6cce73d02/go.mod h1:79bEUDEviBHJMFV6Iq6in57FEOCMcRhfQnfaf0ETA5U=
 github.com/nspcc-dev/go-ordered-json v0.0.0-20220111165707-25110be27d22 h1:n4ZaFCKt1pQJd7PXoMJabZWK9ejjbLOVrkl/lOUmshg=
 github.com/nspcc-dev/go-ordered-json v0.0.0-20220111165707-25110be27d22/go.mod h1:79bEUDEviBHJMFV6Iq6in57FEOCMcRhfQnfaf0ETA5U=
-github.com/nspcc-dev/hrw v1.0.9 h1:17VcAuTtrstmFppBjfRiia4K2wA/ukXZhLFS8Y8rz5Y=
 github.com/nspcc-dev/hrw v1.0.9/go.mod h1:l/W2vx83vMQo6aStyx2AuZrJ+07lGv2JQGlVkPG06MU=
 github.com/nspcc-dev/neo-go v0.73.1-pre.0.20200303142215-f5a1b928ce09/go.mod h1:pPYwPZ2ks+uMnlRLUyXOpLieaDQSEaf4NM3zHVbRjmg=
 github.com/nspcc-dev/neo-go v0.98.0/go.mod h1:E3cc1x6RXSXrJb2nDWXTXjnXk3rIqVN8YdFyWv+FrqM=
-github.com/nspcc-dev/neo-go v0.99.4 h1:8Y+SdRxksC72a4PNkcGCh/aaQinh9Gu+c5LilbcsXOI=
-github.com/nspcc-dev/neo-go v0.99.4/go.mod h1:mKTolfRUfKjFso5HPvGSQtUZc70n0VKBMs16eGuC5gA=
-github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20220927123257-24c107e3a262 h1:UTmSLZw5OpD/JPE1B5Vf98GF0zu2/Hsqq1lGLtStTUE=
-github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20220927123257-24c107e3a262/go.mod h1:23bBw0v6pBYcrWs8CBEEDIEDJNbcFoIh8pGGcf2Vv8s=
+github.com/nspcc-dev/neo-go v0.99.2 h1:Fq79FI6BJkj/XkgWtrURSdXgXIeBHCgbKauBw3LOvZ4=
+github.com/nspcc-dev/neo-go v0.99.2/go.mod h1:9P0yWqhZX7i/ChJ+zjtiStO1uPTolPFUM+L5oNznU8E=
+github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20220809123759-3094d3e0c14b h1:J7QZNmnO84esVuPbBo88fwAG4XVnDjlSTiO1ewLNCkQ=
+github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20220809123759-3094d3e0c14b/go.mod h1:23bBw0v6pBYcrWs8CBEEDIEDJNbcFoIh8pGGcf2Vv8s=
 github.com/nspcc-dev/neofs-api-go/v2 v2.11.0-pre.0.20211201134523-3604d96f3fe1/go.mod h1:oS8dycEh8PPf2Jjp6+8dlwWyEv2Dy77h/XhhcdxYEFs=
-github.com/nspcc-dev/neofs-api-go/v2 v2.11.1 h1:SVqc523pZsSaS9vnPS1mm3VV6b6xY0gvdA0uYJ/GWZQ=
 github.com/nspcc-dev/neofs-api-go/v2 v2.11.1/go.mod h1:oS8dycEh8PPf2Jjp6+8dlwWyEv2Dy77h/XhhcdxYEFs=
 github.com/nspcc-dev/neofs-crypto v0.2.0/go.mod h1:F/96fUzPM3wR+UGsPi3faVNmFlA9KAEAUQR7dMxZmNA=
 github.com/nspcc-dev/neofs-crypto v0.2.3/go.mod h1:8w16GEJbH6791ktVqHN9YRNH3s9BEEKYxGhlFnp0cDw=
 github.com/nspcc-dev/neofs-crypto v0.3.0/go.mod h1:8w16GEJbH6791ktVqHN9YRNH3s9BEEKYxGhlFnp0cDw=
-github.com/nspcc-dev/neofs-crypto v0.4.0 h1:5LlrUAM5O0k1+sH/sktBtrgfWtq1pgpDs09fZo+KYi4=
-github.com/nspcc-dev/neofs-crypto v0.4.0/go.mod h1:6XJ8kbXgOfevbI2WMruOtI+qUJXNwSGM/E9eClXxPHs=
 github.com/nspcc-dev/neofs-sdk-go v0.0.0-20211201182451-a5b61c4f6477/go.mod h1:dfMtQWmBHYpl9Dez23TGtIUKiFvCIxUZq/CkSIhEpz4=
-github.com/nspcc-dev/neofs-sdk-go v0.0.0-20220113123743-7f3162110659 h1:rpMCoRa7expLc9gMiOP724gz6YSykZzmMALR/CmiwnU=
 github.com/nspcc-dev/neofs-sdk-go v0.0.0-20220113123743-7f3162110659/go.mod h1:/jay1lr3w7NQd/VDBkEhkJmDmyPNsu4W+QV2obsUV40=
 github.com/nspcc-dev/rfc6979 v0.1.0/go.mod h1:exhIh1PdpDC5vQmyEsGvc4YDM/lyQp/452QxGq/UEso=
 github.com/nspcc-dev/rfc6979 v0.2.0 h1:3e1WNxrN60/6N0DW7+UYisLeZJyfqZTNOjeV/toYvOE=
@ -292,7 +281,6 @@ github.com/onsi/gomega v1.4.3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1Cpa
 github.com/onsi/gomega v1.7.1/go.mod h1:XdKZgCCFLUoM/7CFJVPcG8C1xQ1AJ0vpAezJrB7JYyY=
 github.com/onsi/gomega v1.10.1 h1:o0+MgICZLuZ7xjH7Vx6zS/zcu93/BEp1VwkIW1mEXCE=
 github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1ybHNo=
-github.com/pierrec/lz4 v2.6.1+incompatible h1:9UY3+iC23yxF0UfGaYrGplQ+79Rg+h/q9FV9ix19jjM=
 github.com/pierrec/lz4 v2.6.1+incompatible/go.mod h1:pdkljMzZIN41W+lC3N2tnIh5sFi+IEE17M5jbnwPHcY=
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
@ -339,7 +327,6 @@ github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeV
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
-github.com/spaolacci/murmur3 v1.1.0 h1:7c1g84S4BPRrfL5Xrdp6fOJ206sU9y293DDHaoy0bLI=
 github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
@ -662,7 +649,6 @@ google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEY
 google.golang.org/genproto v0.0.0-20200618031413-b414f8b61790/go.mod h1:jDfRM7FcilCzHH/e9qn6dsT145K34l5v+OpcnNgKAAA=
 google.golang.org/genproto v0.0.0-20200729003335-053ba62fc06f/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/genproto v0.0.0-20200804131852-c06518451d9c/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
-google.golang.org/genproto v0.0.0-20200825200019-8632dd797987 h1:PDIOdWxZ8eRizhKa1AAvY53xsvLB1cWorMjslvY3VA8=
 google.golang.org/genproto v0.0.0-20200825200019-8632dd797987/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
@ -678,7 +664,6 @@ google.golang.org/grpc v1.30.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM
 google.golang.org/grpc v1.31.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
 google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
 google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.41.0 h1:f+PlOh7QV4iIJkPrx5NQ7qaNGFQ3OTse67yaDHfju4E=
 google.golang.org/grpc v1.41.0/go.mod h1:U3l9uK9J0sini8mHphKoXyaqDA/8VyGnDee1zzIUK6k=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
--- a/frostfs/config.yml
+++ b/frostfs/config.yml
@ -1,5 +1,5 @@
-name: "FrostFS"
-safemethods: ["alphabetAddress", "innerRingCandidates", "config", "listConfig", "version"]
+name: "NeoFS"
+safemethods: ["alphabetList", "alphabetAddress", "innerRingCandidates", "config", "listConfig", "version"]
 permissions:
  - methods: ["update", "transfer"]
 events:
--- a/neofs/doc.go
+++ b/neofs/doc.go
@ -0,0 +1,95 @@
+/*
+NeoFS contract is a contract deployed in NeoFS mainchain.
+
+NeoFS contract is an entry point to NeoFS users. This contract stores all NeoFS
+related GAS, registers new Inner Ring candidates and produces notifications
+to control the sidechain.
+
+While mainchain committee controls the list of Alphabet nodes in native
+RoleManagement contract, NeoFS can't change more than 1\3 keys at a time.
+NeoFS contract contains the actual list of Alphabet nodes in the sidechain.
+
+Network configuration is also stored in NeoFS contract. All changes in
+configuration are mirrored in the sidechain with notifications.
+
+Contract notifications
+
+Deposit notification. This notification is produced when user transfers native
+GAS to the NeoFS contract address. The same amount of NEOFS token will be
+minted in Balance contract in the sidechain.
+
+  Deposit:
+    - name: from
+      type: Hash160
+    - name: amount
+      type: Integer
+    - name: receiver
+      type: Hash160
+    - name: txHash
+      type: Hash256
+
+Withdraw notification. This notification is produced when a user wants to
+withdraw GAS from the internal NeoFS balance and has paid fee for that.
+
+  Withdraw:
+    - name: user
+      type: Hash160
+    - name: amount
+      type: Integer
+    - name: txHash
+      type: Hash256
+
+
+Cheque notification. This notification is produced when NeoFS contract
+has successfully transferred assets back to the user after withdraw.
+
+  Cheque:
+    - name: id
+      type: ByteArray
+    - name: user
+      type: Hash160
+    - name: amount
+      type: Integer
+    - name: lockAccount
+      type: ByteArray
+
+Bind notification. This notification is produced when a user wants to bind
+public keys with the user account (OwnerID). Keys argument is an array of ByteArray.
+
+  Bind:
+    - name: user
+      type: ByteArray
+    - name: keys
+      type: Array
+
+Unbind notification. This notification is produced when a user wants to unbind
+public keys with the user account (OwnerID). Keys argument is an array of ByteArray.
+
+  Unbind:
+    - name: user
+      type: ByteArray
+    - name: keys
+      type: Array
+
+AlphabetUpdate notification. This notification is produced when Alphabet nodes
+have updated their lists in the contract. Alphabet argument is an array of ByteArray. It
+contains public keys of new alphabet nodes.
+
+  AlphabetUpdate:
+    - name: id
+      type: ByteArray
+    - name: alphabet
+      type: Array
+
+SetConfig notification. This notification is produced when Alphabet nodes update
+NeoFS network configuration value.
+
+  SetConfig
+    - name: id
+      type: ByteArray
+    - name: key
+      type: ByteArray
+    - name: value
+      type: ByteArray
+*/
+package neofs
--- a/frostfs/frostfs_contract.go
+++ b/frostfs/frostfs_contract.go
@ -1,10 +1,10 @@
-package frostfs
+package neofs

 import (
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"github.com/nspcc-dev/neo-go/pkg/interop"
 	"github.com/nspcc-dev/neo-go/pkg/interop/contract"
 	"github.com/nspcc-dev/neo-go/pkg/interop/iterator"
+	"github.com/nspcc-dev/neo-go/pkg/interop/native/crypto"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/gas"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/ledger"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
@ -12,6 +12,7 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
+	"github.com/nspcc-dev/neofs-contract/common"
 )

 type (
@ -47,8 +48,6 @@ var (
 func _deploy(data interface{}, isUpdate bool) {
 	ctx := storage.GetContext()

-	common.RmAndCheckNotaryDisabledKey(data, notaryDisabledKey)
-
 	if isUpdate {
 		args := data.([]interface{})
 		common.CheckVersion(args[len(args)-1].(int))
@ -56,7 +55,6 @@ func _deploy(data interface{}, isUpdate bool) {
 	}

 	args := data.(struct {
-		//TODO(@acid-ant): #9 remove notaryDisabled in future version
 		notaryDisabled bool
 		addrProc       interop.Hash160
 		keys           []interop.PublicKey
@ -83,6 +81,13 @@ func _deploy(data interface{}, isUpdate bool) {

 	storage.Put(ctx, processingContractKey, args.addrProc)

+	// initialize the way to collect signatures
+	storage.Put(ctx, notaryDisabledKey, args.notaryDisabled)
+	if args.notaryDisabled {
+		common.InitVote(ctx)
+		runtime.Log("neofs contract notary disabled")
+	}
+
 	ln := len(args.config)
 	if ln%2 != 0 {
 		panic("bad configuration")
@ -95,7 +100,7 @@ func _deploy(data interface{}, isUpdate bool) {
 		setConfig(ctx, key, val)
 	}

-	runtime.Log("frostfs: contract initialized")
+	runtime.Log("neofs: contract initialized")
 }

 // Update method updates contract source code and manifest. It can be invoked
@ -105,13 +110,23 @@ func Update(script []byte, manifest []byte, data interface{}) {
 	alphabetKeys := roles.GetDesignatedByRole(roles.NeoFSAlphabet, uint32(blockHeight+1))
 	alphabetCommittee := common.Multiaddress(alphabetKeys, true)

-	if !runtime.CheckWitness(alphabetCommittee) {
-		panic(common.ErrAlphabetWitnessFailed)
-	}
+	common.CheckAlphabetWitness(alphabetCommittee)

 	contract.Call(interop.Hash160(management.Hash), "update",
 		contract.All, script, manifest, common.AppendVersion(data))
-	runtime.Log("frostfs contract updated")
+	runtime.Log("neofs contract updated")
+}
+
+// AlphabetList returns an array of alphabet node keys. It is used in sidechain notary
+// disabled environment.
+func AlphabetList() []common.IRNode {
+	ctx := storage.GetReadOnlyContext()
+	pubs := getAlphabetNodes(ctx)
+	nodes := []common.IRNode{}
+	for i := range pubs {
+		nodes = append(nodes, common.IRNode{PublicKey: pubs[i]})
+	}
+	return nodes
 }

 // AlphabetAddress returns 2\3n+1 multisignature address of alphabet nodes.
@ -141,15 +156,42 @@ func InnerRingCandidates() []common.IRNode {
 // This method does not return fee back to the candidate.
 func InnerRingCandidateRemove(key interop.PublicKey) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
+
+	var ( // for invocation collection without notary
+		alphabet []interop.PublicKey
+		nodeKey  []byte
+	)

 	keyOwner := runtime.CheckWitness(key)

 	if !keyOwner {
+		if notaryDisabled {
+			alphabet = getAlphabetNodes(ctx)
+			nodeKey = common.InnerRingInvoker(alphabet)
+			if len(nodeKey) == 0 {
+				panic("this method must be invoked by candidate or alphabet")
+			}
+		} else {
 			multiaddr := AlphabetAddress()
 			if !runtime.CheckWitness(multiaddr) {
 				panic("this method must be invoked by candidate or alphabet")
 			}
 		}
+	}
+
+	if notaryDisabled && !keyOwner {
+		threshold := len(alphabet)*2/3 + 1
+		id := append(key, []byte("delete")...)
+		hashID := crypto.Sha256(id)
+
+		n := common.Vote(ctx, hashID, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, hashID)
+	}

 	prefix := []byte(candidatesKey)
 	stKey := append(prefix, key...)
@ -163,7 +205,7 @@ func InnerRingCandidateRemove(key interop.PublicKey) {
 // It can be invoked only by the candidate itself.
 //
 // This method transfers fee from a candidate to the contract account.
-// Fee value is specified in FrostFS network config with the key InnerRingCandidateFee.
+// Fee value is specified in NeoFS network config with the key InnerRingCandidateFee.
 func InnerRingCandidateAdd(key interop.PublicKey) {
 	ctx := storage.GetContext()

@ -189,7 +231,7 @@ func InnerRingCandidateAdd(key interop.PublicKey) {

 // OnNEP17Payment is a callback for NEP-17 compatible native GAS contract.
 // It takes no more than 9000.0 GAS. Native GAS has precision 8, and
-// FrostFS balance contract has precision 12. Values bigger than 9000.0 can
+// NeoFS balance contract has precision 12. Values bigger than 9000.0 can
 // break JSON limits for integers when precision is converted.
 func OnNEP17Payment(from interop.Hash160, amount int, data interface{}) {
 	rcv := data.(interop.Hash160)
@ -222,13 +264,13 @@ func OnNEP17Payment(from interop.Hash160, amount int, data interface{}) {
 	runtime.Notify("Deposit", from, amount, rcv, tx.Hash)
 }

-// Withdraw initializes gas asset withdraw from FrostFS. It can be invoked only
+// Withdraw initializes gas asset withdraw from NeoFS. It can be invoked only
 // by the specified user.
 //
 // This method produces Withdraw notification to lock assets in the sidechain and
 // transfers withdraw fee from a user account to each Alphabet node. If notary
 // is enabled in the mainchain, fee is transferred to Processing contract.
-// Fee value is specified in FrostFS network config with the key WithdrawFee.
+// Fee value is specified in NeoFS network config with the key WithdrawFee.
 func Withdraw(user interop.Hash160, amount int) {
 	if !runtime.CheckWitness(user) {
 		panic("you should be the owner of the wallet")
@ -243,16 +285,29 @@ func Withdraw(user interop.Hash160, amount int) {
 	}

 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

 	// transfer fee to proxy contract to pay cheque invocation
 	fee := getConfig(ctx, withdrawFeeConfigKey).(int)

+	if notaryDisabled {
+		alphabet := getAlphabetNodes(ctx)
+		for _, node := range alphabet {
+			processingAddr := contract.CreateStandardAccount(node)
+
+			transferred := gas.Transfer(user, processingAddr, fee, []byte{})
+			if !transferred {
+				panic("failed to transfer withdraw fee, aborting")
+			}
+		}
+	} else {
 		processingAddr := storage.Get(ctx, processingContractKey).(interop.Hash160)

 		transferred := gas.Transfer(user, processingAddr, fee, []byte{})
 		if !transferred {
 			panic("failed to transfer withdraw fee, aborting")
 		}
+	}

 	// notify alphabet nodes
 	amount = amount * 100000000
@ -262,15 +317,43 @@ func Withdraw(user interop.Hash160, amount int) {
 }

 // Cheque transfers GAS back to the user from the contract account, if assets were
-// successfully locked in FrostFS balance contract. It can be invoked only by
+// successfully locked in NeoFS balance contract. It can be invoked only by
 // Alphabet nodes.
 //
 // This method produces Cheque notification to burn assets in sidechain.
 func Cheque(id []byte, user interop.Hash160, amount int, lockAcc []byte) {
-	common.CheckAlphabetWitness()
+	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
+
+	var ( // for invocation collection without notary
+		alphabet []interop.PublicKey
+		nodeKey  []byte
+	)
+
+	if notaryDisabled {
+		alphabet = getAlphabetNodes(ctx)
+		nodeKey = common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			panic("this method must be invoked by alphabet")
+		}
+	} else {
+		multiaddr := AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}

 	from := runtime.GetExecutingScriptHash()

+	if notaryDisabled {
+		threshold := len(alphabet)*2/3 + 1
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	}
+
 	transferred := gas.Transfer(from, user, amount, nil)
 	if !transferred {
 		panic("failed to transfer funds, aborting")
@ -280,7 +363,7 @@ func Cheque(id []byte, user interop.Hash160, amount int, lockAcc []byte) {
 	runtime.Notify("Cheque", id, user, amount, lockAcc)
 }

-// Bind method produces notification to bind the specified public keys in FrostFSID
+// Bind method produces notification to bind the specified public keys in NeoFSID
 // contract in the sidechain. It can be invoked only by specified user.
 //
 // This method produces Bind notification. This method panics if keys are not
@ -300,7 +383,7 @@ func Bind(user []byte, keys []interop.PublicKey) {
 	runtime.Notify("Bind", user, keys)
 }

-// Unbind method produces notification to unbind the specified public keys in FrostFSID
+// Unbind method produces notification to unbind the specified public keys in NeoFSID
 // contract in the sidechain. It can be invoked only by the specified user.
 //
 // This method produces Unbind notification. This method panics if keys are not
@ -320,19 +403,102 @@ func Unbind(user []byte, keys []interop.PublicKey) {
 	runtime.Notify("Unbind", user, keys)
 }

-// Config returns configuration value of FrostFS configuration. If the key does
+// AlphabetUpdate updates a list of alphabet nodes with the provided list of
+// public keys. It can be invoked only by alphabet nodes.
+//
+// This method is used in notary disabled sidechain environment. In this case,
+// the actual alphabet list should be stored in the NeoFS contract.
+func AlphabetUpdate(id []byte, args []interop.PublicKey) {
+	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
+
+	if len(args) == 0 {
+		panic("bad arguments")
+	}
+
+	var ( // for invocation collection without notary
+		alphabet []interop.PublicKey
+		nodeKey  []byte
+	)
+
+	if notaryDisabled {
+		alphabet = getAlphabetNodes(ctx)
+		nodeKey = common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			panic("this method must be invoked by alphabet")
+		}
+	} else {
+		multiaddr := AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}
+
+	newAlphabet := []interop.PublicKey{}
+
+	for i := 0; i < len(args); i++ {
+		pubKey := args[i]
+		if len(pubKey) != interop.PublicKeyCompressedLen {
+			panic("invalid public key in alphabet list")
+		}
+
+		newAlphabet = append(newAlphabet, pubKey)
+	}
+
+	if notaryDisabled {
+		threshold := len(alphabet)*2/3 + 1
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	}
+
+	common.SetSerialized(ctx, alphabetKey, newAlphabet)
+
+	runtime.Notify("AlphabetUpdate", id, newAlphabet)
+	runtime.Log("alphabet list has been updated")
+}
+
+// Config returns configuration value of NeoFS configuration. If the key does
 // not exists, returns nil.
 func Config(key []byte) interface{} {
 	ctx := storage.GetReadOnlyContext()
 	return getConfig(ctx, key)
 }

-// SetConfig key-value pair as a FrostFS runtime configuration value. It can be invoked
+// SetConfig key-value pair as a NeoFS runtime configuration value. It can be invoked
 // only by Alphabet nodes.
 func SetConfig(id, key, val []byte) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

-	common.CheckAlphabetWitness()
+	var ( // for invocation collection without notary
+		alphabet []interop.PublicKey
+		nodeKey  []byte
+	)
+
+	if notaryDisabled {
+		alphabet = getAlphabetNodes(ctx)
+		nodeKey = common.InnerRingInvoker(alphabet)
+		if len(key) == 0 {
+			panic("this method must be invoked by alphabet")
+		}
+	} else {
+		multiaddr := AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}
+
+	if notaryDisabled {
+		threshold := len(alphabet)*2/3 + 1
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	}

 	setConfig(ctx, key, val)

@ -341,7 +507,7 @@ func SetConfig(id, key, val []byte) {
 }

 // ListConfig returns an array of structures that contain a key and a value of all
-// FrostFS configuration records. Key and value are both byte arrays.
+// NeoFS configuration records. Key and value are both byte arrays.
 func ListConfig() []record {
 	ctx := storage.GetReadOnlyContext()

@ -376,7 +542,7 @@ func getAlphabetNodes(ctx storage.Context) []interop.PublicKey {
 	return []interop.PublicKey{}
 }

-// getConfig returns the installed frostfs configuration value or nil if it is not set.
+// getConfig returns the installed neofs configuration value or nil if it is not set.
 func getConfig(ctx storage.Context, key interface{}) interface{} {
 	postfix := key.([]byte)
 	storageKey := append(configPrefix, postfix...)
@ -384,7 +550,7 @@ func getConfig(ctx storage.Context, key interface{}) interface{} {
 	return storage.Get(ctx, storageKey)
 }

-// setConfig sets a frostfs configuration value in the contract storage.
+// setConfig sets a neofs configuration value in the contract storage.
 func setConfig(ctx storage.Context, key, val interface{}) {
 	postfix := key.([]byte)
 	storageKey := append(configPrefix, postfix...)
--- a/frostfsid/config.yml
+++ b/frostfsid/config.yml
@ -1,4 +1,4 @@
-name: "Identity"
+name: "NeoFS ID"
 safemethods: ["key", "version"]
 permissions:
  - methods: ["update"]
--- a/neofsid/doc.go
+++ b/neofsid/doc.go
@ -0,0 +1,20 @@
+/*
+NeoFSID contract is a contract deployed in NeoFS sidechain.
+
+NeoFSID contract is used to store connection between an OwnerID and its public keys.
+OwnerID is a 25-byte N3 wallet address that can be produced from a public key.
+It is one-way conversion. In simple cases, NeoFS verifies ownership by checking
+signature and relation between a public key and an OwnerID.
+
+In more complex cases, a user can use public keys unrelated to the OwnerID to maintain
+secure access to the data. NeoFSID contract stores relation between an OwnerID and
+arbitrary public keys. Data owner can bind a public key with its account or unbind it
+by invoking Bind or Unbind methods of NeoFS contract in the mainchain. After that,
+Alphabet nodes produce multisigned AddKey and RemoveKey invocations of NeoFSID
+contract.
+
+Contract notifications
+
+NeoFSID contract does not produce notifications to process.
+*/
+package neofsid
--- a/frostfsid/frostfsid_contract.go
+++ b/frostfsid/frostfsid_contract.go
@ -1,13 +1,14 @@
-package frostfsid
+package neofsid

 import (
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"github.com/nspcc-dev/neo-go/pkg/interop"
 	"github.com/nspcc-dev/neo-go/pkg/interop/contract"
 	"github.com/nspcc-dev/neo-go/pkg/interop/iterator"
+	"github.com/nspcc-dev/neo-go/pkg/interop/native/crypto"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
+	"github.com/nspcc-dev/neofs-contract/common"
 )

 type (
@ -30,8 +31,6 @@ const (
 func _deploy(data interface{}, isUpdate bool) {
 	ctx := storage.GetContext()

-	common.RmAndCheckNotaryDisabledKey(data, notaryDisabledKey)
-
 	if isUpdate {
 		args := data.([]interface{})
 		common.CheckVersion(args[len(args)-1].(int))
@ -39,7 +38,6 @@ func _deploy(data interface{}, isUpdate bool) {
 	}

 	args := data.(struct {
-		//TODO(@acid-ant): #9 remove notaryDisabled in future version
 		notaryDisabled bool
 		addrNetmap     interop.Hash160
 		addrContainer  interop.Hash160
@ -52,7 +50,14 @@ func _deploy(data interface{}, isUpdate bool) {
 	storage.Put(ctx, netmapContractKey, args.addrNetmap)
 	storage.Put(ctx, containerContractKey, args.addrContainer)

-	runtime.Log("frostfsid contract initialized")
+	// initialize the way to collect signatures
+	storage.Put(ctx, notaryDisabledKey, args.notaryDisabled)
+	if args.notaryDisabled {
+		common.InitVote(ctx)
+		runtime.Log("neofsid contract notary disabled")
+	}
+
+	runtime.Log("neofsid contract initialized")
 }

 // Update method updates contract source code and manifest. It can be invoked
@ -64,7 +69,7 @@ func Update(script []byte, manifest []byte, data interface{}) {

 	contract.Call(interop.Hash160(management.Hash), "update",
 		contract.All, script, manifest, common.AppendVersion(data))
-	runtime.Log("frostfsid contract updated")
+	runtime.Log("neofsid contract updated")
 }

 // AddKey binds a list of the provided public keys to the OwnerID. It can be invoked only by
@ -85,8 +90,41 @@ func AddKey(owner []byte, keys []interop.PublicKey) {
 	}

 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

-	common.CheckAlphabetWitness()
+	var ( // for invocation collection without notary
+		alphabet     []interop.PublicKey
+		nodeKey      []byte
+		indirectCall bool
+	)
+
+	if notaryDisabled {
+		alphabet = common.AlphabetNodes()
+		nodeKey = common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			panic("invocation from non inner ring node")
+		}
+
+		indirectCall = common.FromKnownContract(
+			ctx,
+			runtime.GetCallingScriptHash(),
+			containerContractKey)
+
+		if indirectCall {
+			threshold := len(alphabet)*2/3 + 1
+			id := invokeIDKeys(owner, keys, []byte("add"))
+
+			n := common.Vote(ctx, id, nodeKey)
+			if n < threshold {
+				return
+			}
+
+			common.RemoveVotes(ctx, id)
+		}
+	} else {
+		multiaddr := common.AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}

 	ownerKey := append([]byte{ownerKeysPrefix}, owner...)
 	for i := range keys {
@ -115,11 +153,35 @@ func RemoveKey(owner []byte, keys []interop.PublicKey) {
 	}

 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

+	var ( // for invocation collection without notary
+		alphabet []interop.PublicKey
+		nodeKey  []byte
+	)
+
+	if notaryDisabled {
+		alphabet = common.AlphabetNodes()
+		nodeKey = common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			panic("invocation from non inner ring node")
+		}
+
+		threshold := len(alphabet)*2/3 + 1
+		id := invokeIDKeys(owner, keys, []byte("remove"))
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	} else {
 		multiaddr := common.AlphabetAddress()
 		if !runtime.CheckWitness(multiaddr) {
 			panic("invocation from non inner ring node")
 		}
+	}

 	ownerKey := append([]byte{ownerKeysPrefix}, owner...)
 	for i := range keys {
@ -160,3 +222,12 @@ func getUserInfo(ctx storage.Context, key interface{}) UserInfo {

 	return UserInfo{Keys: pubs}
 }
+
+func invokeIDKeys(owner []byte, keys []interop.PublicKey, prefix []byte) []byte {
+	prefix = append(prefix, owner...)
+	for i := range keys {
+		prefix = append(prefix, keys[i]...)
+	}
+
+	return crypto.Sha256(prefix)
+}
--- a/netmap/config.yml
+++ b/netmap/config.yml
@ -1,5 +1,5 @@
-name: "Netmap"
-safemethods: ["epoch", "netmap", "netmapCandidates", "snapshot", "snapshotByEpoch", "config", "listConfig", "version"]
+name: "NeoFS Netmap"
+safemethods: ["innerRingList", "epoch", "netmap", "netmapCandidates", "snapshot", "snapshotByEpoch", "config", "listConfig", "version"]
 permissions:
  - methods: ["update", "newEpoch"]
 events:
--- a/netmap/doc.go
+++ b/netmap/doc.go
@ -1,10 +1,11 @@
 /*
-Netmap contract is a contract deployed in FrostFS sidechain.
+Netmap contract is a contract deployed in NeoFS sidechain.

-Netmap contract stores and manages FrostFS network map, Storage node candidates
-and epoch number counter.
+Netmap contract stores and manages NeoFS network map, Storage node candidates
+and epoch number counter. In notary disabled environment, contract also stores
+a list of Inner Ring node keys.

-# Contract notifications
+Contract notifications

 AddPeer notification. This notification is produced when a Storage node sends
 a bootstrap request by invoking AddPeer method.
--- a/netmap/netmap_contract.go
+++ b/netmap/netmap_contract.go
@ -1,15 +1,16 @@
 package netmap

 import (
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"github.com/nspcc-dev/neo-go/pkg/interop"
 	"github.com/nspcc-dev/neo-go/pkg/interop/contract"
 	"github.com/nspcc-dev/neo-go/pkg/interop/iterator"
+	"github.com/nspcc-dev/neo-go/pkg/interop/native/crypto"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/ledger"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
+	"github.com/nspcc-dev/neofs-contract/common"
 )

 // NodeState is an enumeration for node states.
@ -31,10 +32,10 @@ const (
 	NodeStateMaintenance
 )

-// Node groups data related to FrostFS storage nodes registered in the FrostFS
+// Node groups data related to NeoFS storage nodes registered in the NeoFS
 // network. The information is stored in the current contract.
 type Node struct {
-	// Information about the node encoded according to the FrostFS binary
+	// Information about the node encoded according to the NeoFS binary
 	// protocol.
 	BLOB []byte

@ -70,10 +71,7 @@ var (
 func _deploy(data interface{}, isUpdate bool) {
 	ctx := storage.GetContext()

-	common.RmAndCheckNotaryDisabledKey(data, notaryDisabledKey)
-
 	var args = data.(struct {
-		//TODO(@acid-ant): #9 remove notaryDisabled in future version
 		notaryDisabled bool
 		addrBalance    interop.Hash160
 		addrContainer  interop.Hash160
@ -96,6 +94,25 @@ func _deploy(data interface{}, isUpdate bool) {

 	if isUpdate {
 		common.CheckVersion(args.version)
+
+		count := getSnapshotCount(ctx)
+		prefix := []byte(snapshotKeyPrefix)
+		for i := 0; i < count; i++ {
+			key := append(prefix, byte(i))
+			data := storage.Get(ctx, key)
+			if data != nil {
+				nodes := std.Deserialize(data.([]byte)).([]Node)
+				for i := range nodes {
+					// Old structure contains only the first field,
+					// second is implicitly assumed to be Online.
+					nodes[i] = Node{
+						BLOB:  nodes[i].BLOB,
+						State: NodeStateOnline,
+					}
+				}
+				common.SetSerialized(ctx, key, nodes)
+			}
+		}
 		return
 	}

@ -117,6 +134,14 @@ func _deploy(data interface{}, isUpdate bool) {
 	storage.Put(ctx, balanceContractKey, args.addrBalance)
 	storage.Put(ctx, containerContractKey, args.addrContainer)

+	// initialize the way to collect signatures
+	storage.Put(ctx, notaryDisabledKey, args.notaryDisabled)
+	if args.notaryDisabled {
+		common.SetSerialized(ctx, innerRingKey, args.keys)
+		common.InitVote(ctx)
+		runtime.Log("netmap contract notary disabled")
+	}
+
 	runtime.Log("netmap contract initialized")
 }

@ -132,6 +157,62 @@ func Update(script []byte, manifest []byte, data interface{}) {
 	runtime.Log("netmap contract updated")
 }

+// InnerRingList method returns a slice of structures that contains the public key of
+// an Inner Ring node. It should be used in notary disabled environment only.
+//
+// If notary is enabled, look to NeoFSAlphabet role in native RoleManagement
+// contract of the sidechain.
+func InnerRingList() []common.IRNode {
+	ctx := storage.GetReadOnlyContext()
+	pubs := getIRNodes(ctx)
+	nodes := []common.IRNode{}
+	for i := range pubs {
+		nodes = append(nodes, common.IRNode{PublicKey: pubs[i]})
+	}
+	return nodes
+}
+
+// UpdateInnerRing method updates a list of Inner Ring node keys. It should be used
+// only in notary disabled environment. It can be invoked only by Alphabet nodes.
+//
+// If notary is enabled, update NeoFSAlphabet role in native RoleManagement
+// contract of the sidechain. Use notary service to collect multisignature.
+func UpdateInnerRing(keys []interop.PublicKey) {
+	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
+
+	var ( // for invocation collection without notary
+		alphabet []interop.PublicKey
+		nodeKey  []byte
+	)
+
+	if notaryDisabled {
+		alphabet = common.AlphabetNodes()
+		nodeKey = common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			panic("this method must be invoked by alphabet nodes")
+		}
+	} else {
+		multiaddr := common.AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}
+
+	if notaryDisabled {
+		threshold := len(alphabet)*2/3 + 1
+		id := keysID(keys, []byte("updateIR"))
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	}
+
+	runtime.Log("inner ring list updated")
+	common.SetSerialized(ctx, innerRingKey, keys)
+}
+
 // AddPeerIR accepts Alphabet calls in the notary-enabled contract setting and
 // behaves similar to AddPeer in the notary-disabled one.
 //
@ -139,8 +220,12 @@ func Update(script []byte, manifest []byte, data interface{}) {
 // AddPeerIR MUST be called by the Alphabet member only.
 func AddPeerIR(nodeInfo []byte) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
+	if notaryDisabled {
+		panic("AddPeerIR should only be called in notary-enabled environment")
+	}

-	common.CheckAlphabetWitness()
+	common.CheckAlphabetWitness(common.AlphabetAddress())

 	publicKey := nodeInfo[2:35] // V2 format: offset:2, len:33

@ -150,16 +235,80 @@ func AddPeerIR(nodeInfo []byte) {
 	})
 }

-// AddPeer accepts information about the network map candidate in the FrostFS
-// binary protocol format and does nothing. Keep method because storage node
-// creates a notary transaction with this method, which produces a notary
-// notification (implicit here).
+// AddPeer accepts information about the network map candidate in the NeoFS
+// binary protocol format, identifies the caller and behaves depending on different
+// conditions listed below.
+//
+// Contract settings:
+//
+//	(1) notary-enabled
+//	(2) notary-disabled
+//
+// Callers:
+//
+//	(a) candidate himself, if node's public key corresponds to the signer
+//	(b) Alphabet member
+//	(c) others
+//
+// AddPeer case-by-case behavior:
+//
+//	(1a) does nothing
+//	(1b) panics. Notice that AddPeerIR MUST be used for this purpose.
+//	(2a) throws AddPeer notification with the provided BLOB
+//	(2b) accepts Alphabet vote. If the threshold of votes is reached, adds
+//	new element to the candidate set, and throws AddPeerSuccess notification.
+//	(c) panics
+//
+// Candidate MUST call AddPeer with "online" state in its descriptor. Alphabet
+// members MUST NOT call AddPeer with any other states.
 func AddPeer(nodeInfo []byte) {
-	// V2 format - offset:2, len:33
-	common.CheckWitness(nodeInfo[2:35])
+	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
+
+	var ( // for invocation collection without notary
+		alphabet []interop.PublicKey
+		nodeKey  []byte
+	)
+
+	if notaryDisabled {
+		alphabet = common.AlphabetNodes()
+		nodeKey = common.InnerRingInvoker(alphabet)
+	}
+
+	// V2 format
+	publicKey := nodeInfo[2:35] // offset:2, len:33
+
+	// If notary is enabled or caller is not an alphabet node,
+	// just emit the notification for alphabet.
+	if !notaryDisabled || len(nodeKey) == 0 {
+		common.CheckWitness(publicKey)
+		if notaryDisabled {
+			runtime.Notify("AddPeer", nodeInfo)
+		}
 		return
 	}

+	candidate := Node{
+		BLOB:  nodeInfo,
+		State: NodeStateOnline,
+	}
+
+	if notaryDisabled {
+		threshold := len(alphabet)*2/3 + 1
+		rawCandidate := std.Serialize(candidate)
+		id := crypto.Sha256(rawCandidate)
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	}
+
+	addToNetmap(ctx, publicKey, candidate)
+}
+
 // updates state of the network map candidate by its public key in the contract
 // storage, and throws UpdateStateSuccess notification after this.
 //
@ -180,8 +329,13 @@ func updateCandidateState(ctx storage.Context, publicKey interop.PublicKey, stat
 }

 // UpdateState accepts new state to be assigned to network map candidate
-// identified by the given public key, identifies the signer.
-// Applicable only for notary-enabled environment.
+// identified by the given public key, identifies the signer and behaves
+// depending on different conditions listed below.
+//
+// Contract settings:
+//
+//	(1) notary-enabled
+//	(2) notary-disabled
 //
 // Signers:
 //
@ -192,10 +346,13 @@ func updateCandidateState(ctx storage.Context, publicKey interop.PublicKey, stat
 //
 // UpdateState case-by-case behavior:
 //
-//	(a) panics
-//	(b) panics
-//	(ab) updates candidate's state in the contract storage (*), and throws
+//	(1a) panics
+//	(1b) like (1a)
+//	(1ab) updates candidate's state in the contract storage (*), and throws
 //	UpdateStateSuccess with the provided key and new state
+//	(2a) throws UpdateState notification with the provided key and new state
+//	(2b) accepts Alphabet vote. If the threshold of votes is reached, behaves
+//	like (1ab).
 //	(c) panics
 //
 // (*) Candidate is removed from the candidate set if state is NodeStateOffline.
@ -211,9 +368,33 @@ func UpdateState(state NodeState, publicKey interop.PublicKey) {
 	}

 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

+	if notaryDisabled {
+		alphabet := common.AlphabetNodes()
+		nodeKey := common.InnerRingInvoker(alphabet)
+
+		// If caller is not an alphabet node,
+		// just emit the notification for alphabet.
+		if len(nodeKey) == 0 {
 			common.CheckWitness(publicKey)
-	common.CheckAlphabetWitness()
+			runtime.Notify("UpdateState", state, publicKey)
+			return
+		}
+
+		threshold := len(alphabet)*2/3 + 1
+		id := common.InvokeID([]interface{}{state, publicKey}, []byte("update"))
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	} else {
+		common.CheckWitness(publicKey)
+		common.CheckAlphabetWitness(common.AlphabetAddress())
+	}

 	updateCandidateState(ctx, publicKey, state)
 }
@ -226,8 +407,12 @@ func UpdateState(state NodeState, publicKey interop.PublicKey) {
 // UpdateStateIR MUST be called by the Alphabet member only.
 func UpdateStateIR(state NodeState, publicKey interop.PublicKey) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
+	if notaryDisabled {
+		panic("UpdateStateIR should only be called in notary-enabled environment")
+	}

-	common.CheckAlphabetWitness()
+	common.CheckAlphabetWitness(common.AlphabetAddress())

 	updateCandidateState(ctx, publicKey, state)
 }
@ -243,8 +428,35 @@ func UpdateStateIR(state NodeState, publicKey interop.PublicKey) {
 // It produces NewEpoch notification.
 func NewEpoch(epochNum int) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

-	common.CheckAlphabetWitness()
+	var ( // for invocation collection without notary
+		alphabet []interop.PublicKey
+		nodeKey  []byte
+	)
+
+	if notaryDisabled {
+		alphabet = common.AlphabetNodes()
+		nodeKey = common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			panic("this method must be invoked by inner ring nodes")
+		}
+	} else {
+		multiaddr := common.AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}
+
+	if notaryDisabled {
+		threshold := len(alphabet)*2/3 + 1
+		id := common.InvokeID([]interface{}{epochNum}, []byte("epoch"))
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	}

 	currentEpoch := storage.Get(ctx, snapshotEpoch).(int)
 	if epochNum <= currentEpoch {
@ -342,7 +554,7 @@ func getSnapshotCount(ctx storage.Context) int {
 //
 // Count MUST NOT be negative.
 func UpdateSnapshotCount(count int) {
-	common.CheckAlphabetWitness()
+	common.CheckAlphabetWitness(common.AlphabetAddress())
 	if count < 0 {
 		panic("count must be positive")
 	}
@ -430,19 +642,45 @@ func SnapshotByEpoch(epoch int) []Node {
 	return Snapshot(currentEpoch - epoch)
 }

-// Config returns configuration value of FrostFS configuration. If key does
+// Config returns configuration value of NeoFS configuration. If key does
 // not exists, returns nil.
 func Config(key []byte) interface{} {
 	ctx := storage.GetReadOnlyContext()
 	return getConfig(ctx, key)
 }

-// SetConfig key-value pair as a FrostFS runtime configuration value. It can be invoked
+// SetConfig key-value pair as a NeoFS runtime configuration value. It can be invoked
 // only by Alphabet nodes.
 func SetConfig(id, key, val []byte) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

-	common.CheckAlphabetWitness()
+	var ( // for invocation collection without notary
+		alphabet []interop.PublicKey
+		nodeKey  []byte
+	)
+
+	if notaryDisabled {
+		alphabet = common.AlphabetNodes()
+		nodeKey = common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			panic("invoked by non inner ring node")
+		}
+	} else {
+		multiaddr := common.AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}
+
+	if notaryDisabled {
+		threshold := len(alphabet)*2/3 + 1
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	}

 	setConfig(ctx, key, val)

@ -455,7 +693,7 @@ type record struct {
 }

 // ListConfig returns an array of structures that contain key and value of all
-// FrostFS configuration records. Key and value are both byte arrays.
+// NeoFS configuration records. Key and value are both byte arrays.
 func ListConfig() []record {
 	ctx := storage.GetReadOnlyContext()

@ -565,3 +803,26 @@ func cleanup(ctx storage.Context, epoch int) {
 	containerContractAddr := storage.Get(ctx, containerContractKey).(interop.Hash160)
 	contract.Call(containerContractAddr, cleanupEpochMethod, contract.All, epoch)
 }
+
+func getIRNodes(ctx storage.Context) []interop.PublicKey {
+	data := storage.Get(ctx, innerRingKey)
+	if data != nil {
+		return std.Deserialize(data.([]byte)).([]interop.PublicKey)
+	}
+
+	return []interop.PublicKey{}
+}
+
+func keysID(args []interop.PublicKey, prefix []byte) []byte {
+	var (
+		result []byte
+	)
+
+	result = append(result, prefix...)
+
+	for i := range args {
+		result = append(result, args[i]...)
+	}
+
+	return crypto.Sha256(result)
+}
--- a/nns/nns_contract.go
+++ b/nns/nns_contract.go
@ -9,7 +9,6 @@ must be added by committee before a new domain name can be registered.
 package nns

 import (
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"github.com/nspcc-dev/neo-go/pkg/interop"
 	"github.com/nspcc-dev/neo-go/pkg/interop/contract"
 	"github.com/nspcc-dev/neo-go/pkg/interop/iterator"
@ -20,6 +19,7 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
 	"github.com/nspcc-dev/neo-go/pkg/interop/util"
+	"github.com/nspcc-dev/neofs-contract/common"
 )

 // Prefixes used for contract data storage.
--- a/processing/config.yml
+++ b/processing/config.yml
@ -1,4 +1,4 @@
-name: "Multi Signature Processing"
+name: "NeoFS Multi Signature Processing"
 safemethods: ["verify", "version"]
 permissions:
  - methods: ["update"]
--- a/processing/doc.go
+++ b/processing/doc.go
@ -1,5 +1,5 @@
 /*
-Processing contract is a contract deployed in FrostFS mainchain.
+Processing contract is a contract deployed in NeoFS mainchain.

 Processing contract pays for all multisignature transaction executions when notary
 service is enabled in the mainchain. Notary service prepares multisigned transactions,
@ -8,14 +8,14 @@ ask Alphabet nodes to pay for these transactions: nodes can change over time,
 some nodes will spend sidechain GAS faster. It leads to economic instability.

 Processing contract exists to solve this issue. At the Withdraw invocation of
-FrostFS contract, a user pays fee directly to this contract. This fee is used to
-pay for Cheque invocation of FrostFS contract that returns mainchain GAS back
+NeoFS contract, a user pays fee directly to this contract. This fee is used to
+pay for Cheque invocation of NeoFS contract that returns mainchain GAS back
 to the user. The address of the Processing contract is used as the first signer in
 the multisignature transaction. Therefore, NeoVM executes Verify method of the
 contract and if invocation is verified, Processing contract pays for the
 execution.

-# Contract notifications
+Contract notifications

 Processing contract does not produce notifications to process.
 */
--- a/processing/processing_contract.go
+++ b/processing/processing_contract.go
@ -1,7 +1,6 @@
 package processing

 import (
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"github.com/nspcc-dev/neo-go/pkg/interop"
 	"github.com/nspcc-dev/neo-go/pkg/interop/contract"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/gas"
@ -10,10 +9,11 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/roles"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
+	"github.com/nspcc-dev/neofs-contract/common"
 )

 const (
-	frostfsContractKey = "frostfsScriptHash"
+	neofsContractKey = "neofsScriptHash"

 	multiaddrMethod = "alphabetAddress"
 )
@ -34,16 +34,16 @@ func _deploy(data interface{}, isUpdate bool) {
 	}

 	args := data.(struct {
-		addrFrostFS interop.Hash160
+		addrNeoFS interop.Hash160
 	})

 	ctx := storage.GetContext()

-	if len(args.addrFrostFS) != interop.Hash160Len {
+	if len(args.addrNeoFS) != interop.Hash160Len {
 		panic("incorrect length of contract script hash")
 	}

-	storage.Put(ctx, frostfsContractKey, args.addrFrostFS)
+	storage.Put(ctx, neofsContractKey, args.addrNeoFS)

 	runtime.Log("processing contract initialized")
 }
@ -68,8 +68,8 @@ func Update(script []byte, manifest []byte, data interface{}) {
 // Alphabet nodes of the Inner Ring.
 func Verify() bool {
 	ctx := storage.GetContext()
-	frostfsContractAddr := storage.Get(ctx, frostfsContractKey).(interop.Hash160)
-	multiaddr := contract.Call(frostfsContractAddr, multiaddrMethod, contract.ReadOnly).(interop.Hash160)
+	neofsContractAddr := storage.Get(ctx, neofsContractKey).(interop.Hash160)
+	multiaddr := contract.Call(neofsContractAddr, multiaddrMethod, contract.ReadOnly).(interop.Hash160)

 	return runtime.CheckWitness(multiaddr)
 }
--- a/proxy/config.yml
+++ b/proxy/config.yml
@ -1,4 +1,4 @@
-name: "Notary Proxy"
+name: "NeoFS Notary Proxy"
 safemethods: ["verify", "version"]
 permissions:
  - methods: ["update"]
--- a/proxy/doc.go
+++ b/proxy/doc.go
@ -1,5 +1,5 @@
 /*
-Proxy contract is a contract deployed in FrostFS sidechain.
+Proxy contract is a contract deployed in NeoFS sidechain.

 Proxy contract pays for all multisignature transaction executions when notary
 service is enabled in the sidechain. Notary service prepares multisigned transactions,
@ -14,7 +14,7 @@ Proxy contract is used as the first signer in a multisignature transaction.
 Therefore, NeoVM executes Verify method of the contract; and if invocation is
 verified, Proxy contract pays for the execution.

-# Contract notifications
+Contract notifications

 Proxy contract does not produce notifications to process.
 */
--- a/proxy/proxy_contract.go
+++ b/proxy/proxy_contract.go
@ -1,13 +1,13 @@
 package proxy

 import (
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"github.com/nspcc-dev/neo-go/pkg/interop"
 	"github.com/nspcc-dev/neo-go/pkg/interop/contract"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/gas"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/neo"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
+	"github.com/nspcc-dev/neofs-contract/common"
 )

 // OnNEP17Payment is a callback for NEP-17 compatible native GAS contract.
--- a/reputation/config.yml
+++ b/reputation/config.yml
@ -1,4 +1,4 @@
-name: "Reputation"
+name: "NeoFS Reputation"
 safemethods: ["get", "getByID", "listByEpoch"]
 permissions:
  - methods: ["update"]
--- a/reputation/doc.go
+++ b/reputation/doc.go
@ -1,5 +1,5 @@
 /*
-Reputation contract is a contract deployed in FrostFS sidechain.
+Reputation contract is a contract deployed in NeoFS sidechain.

 Inner Ring nodes produce data audit for each container during each epoch. In the end,
 nodes produce DataAuditResult structure that contains information about audit
@ -10,7 +10,7 @@ During settlement process, Alphabet nodes fetch all DataAuditResult structures
 from the epoch and execute balance transfers from data owners to Storage and
 Inner Ring nodes if data audit succeeds.

-# Contract notifications
+Contract notifications

 Reputation contract does not produce notifications to process.
 */
--- a/reputation/reputation_contract.go
+++ b/reputation/reputation_contract.go
@ -1,7 +1,6 @@
 package reputation

 import (
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"github.com/nspcc-dev/neo-go/pkg/interop"
 	"github.com/nspcc-dev/neo-go/pkg/interop/contract"
 	"github.com/nspcc-dev/neo-go/pkg/interop/convert"
@ -9,6 +8,7 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
+	"github.com/nspcc-dev/neofs-contract/common"
 )

 const (
@ -18,7 +18,7 @@ const (
 )

 func _deploy(data interface{}, isUpdate bool) {
-	common.RmAndCheckNotaryDisabledKey(data, notaryDisabledKey)
+	ctx := storage.GetContext()

 	if isUpdate {
 		args := data.([]interface{})
@ -26,6 +26,17 @@ func _deploy(data interface{}, isUpdate bool) {
 		return
 	}

+	args := data.(struct {
+		notaryDisabled bool
+	})
+
+	// initialize the way to collect signatures
+	storage.Put(ctx, notaryDisabledKey, args.notaryDisabled)
+	if args.notaryDisabled {
+		common.InitVote(ctx)
+		runtime.Log("reputation contract notary disabled")
+	}
+
 	runtime.Log("reputation contract initialized")
 }

@ -49,14 +60,40 @@ func Update(script []byte, manifest []byte, data interface{}) {
 // Value contains a stable marshaled structure of DataAuditResult.
 func Put(epoch int, peerID []byte, value []byte) {
 	ctx := storage.GetContext()
+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)

+	var ( // for invocation collection without notary
+		alphabet     []interop.PublicKey
+		nodeKey      []byte
+		alphabetCall bool
+	)
+
+	if notaryDisabled {
+		alphabet = common.AlphabetNodes()
+		nodeKey = common.InnerRingInvoker(alphabet)
+		alphabetCall = len(nodeKey) != 0
+	} else {
 		multiaddr := common.AlphabetAddress()
-	if !runtime.CheckWitness(multiaddr) {
+		alphabetCall = runtime.CheckWitness(multiaddr)
+	}
+
+	if !alphabetCall {
 		runtime.Notify("reputationPut", epoch, peerID, value)
 		return
 	}

 	id := storageID(epoch, peerID)
+	if notaryDisabled {
+		threshold := len(alphabet)*2/3 + 1
+
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	}
+
 	key := getReputationKey(reputationCountPrefix, id)
 	rawCnt := storage.Get(ctx, key)
 	cnt := 0
--- a/subnet/config.yml
+++ b/subnet/config.yml
@ -1,4 +1,4 @@
-name: "Subnet"
+name: "NeoFS Subnet"
 safemethods: ["version"]
 permissions:
  - methods: ["update"]
--- a/subnet/doc.go
+++ b/subnet/doc.go
@ -1,11 +1,11 @@
 /*
-Subnet contract is a contract deployed in FrostFS sidechain.
+Subnet contract is a contract deployed in NeoFS sidechain.

-Subnet contract stores and manages FrostFS subnetwork states. It allows registering
+Subnet contract stores and manages NeoFS subnetwork states. It allows registering
 and deleting subnetworks, limiting access to them, and defining a list of the Storage
 Nodes that can be included in them.

-# Contract notifications
+Contract notifications

 Put notification. This notification is produced when a new subnetwork is
 registered by invoking Put method.
--- a/subnet/subnet_contract.go
+++ b/subnet/subnet_contract.go
@ -1,13 +1,13 @@
 package subnet

 import (
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
 	"github.com/nspcc-dev/neo-go/pkg/interop"
 	"github.com/nspcc-dev/neo-go/pkg/interop/contract"
 	"github.com/nspcc-dev/neo-go/pkg/interop/iterator"
 	"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
 	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
 	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
+	"github.com/nspcc-dev/neofs-contract/common"
 )

 const (
@ -27,6 +27,14 @@ const (
 	ErrInvalidUser = "invalid user"
 	// ErrInvalidNode is thrown when node has invalid format.
 	ErrInvalidNode = "invalid node key"
+	// ErrNodeAdmNotExist is thrown when node admin is not found.
+	ErrNodeAdmNotExist = "node admin not found"
+	// ErrClientAdmNotExist is thrown when client admin is not found.
+	ErrClientAdmNotExist = "client admin not found"
+	// ErrNodeNotExist is thrown when node is not found.
+	ErrNodeNotExist = "node not found"
+	// ErrUserNotExist is thrown when user is not found.
+	ErrUserNotExist = "user not found"
 	// ErrAccessDenied is thrown when operation is denied for caller.
 	ErrAccessDenied = "access denied"
 )
@ -49,13 +57,18 @@ const (

 // _deploy function sets up initial list of inner ring public keys.
 func _deploy(data interface{}, isUpdate bool) {
-	common.RmAndCheckNotaryDisabledKey(data, notaryDisabledKey)
-
 	if isUpdate {
 		args := data.([]interface{})
 		common.CheckVersion(args[len(args)-1].(int))
 		return
 	}
+
+	args := data.(struct {
+		notaryDisabled bool
+	})
+
+	ctx := storage.GetContext()
+	storage.Put(ctx, []byte{notaryDisabledKey}, args.notaryDisabled)
 }

 // Update method updates contract source code and manifest. It can be invoked
@ -86,9 +99,30 @@ func Put(id []byte, ownerKey interop.PublicKey, info []byte) {
 		panic(ErrAlreadyExists)
 	}

+	notaryDisabled := storage.Get(ctx, notaryDisabledKey).(bool)
+	if notaryDisabled {
+		alphabet := common.AlphabetNodes()
+		nodeKey := common.InnerRingInvoker(alphabet)
+		if len(nodeKey) == 0 {
+			common.CheckWitness(ownerKey)
+			runtime.Notify("Put", id, ownerKey, info)
+			return
+		}
+
+		threshold := len(alphabet)*2/3 + 1
+		id := common.InvokeID([]interface{}{ownerKey, info}, []byte("put"))
+		n := common.Vote(ctx, id, nodeKey)
+		if n < threshold {
+			return
+		}
+
+		common.RemoveVotes(ctx, id)
+	} else {
 		common.CheckOwnerWitness(ownerKey)

-	common.CheckAlphabetWitness()
+		multiaddr := common.AlphabetAddress()
+		common.CheckAlphabetWitness(multiaddr)
+	}

 	storage.Put(ctx, stKey, ownerKey)
 	stKey[0] = infoPrefix
--- a/tests/alphabet_test.go
+++ b/tests/alphabet_test.go
@ -4,8 +4,6 @@ import (
 	"path"
 	"testing"

-	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/container"
 	"github.com/nspcc-dev/neo-go/pkg/core/native/nativenames"
 	"github.com/nspcc-dev/neo-go/pkg/core/native/noderoles"
 	"github.com/nspcc-dev/neo-go/pkg/neotest"
@ -13,6 +11,8 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/vm"
 	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
 	"github.com/nspcc-dev/neo-go/pkg/wallet"
+	"github.com/nspcc-dev/neofs-contract/common"
+	"github.com/nspcc-dev/neofs-contract/container"
 	"github.com/stretchr/testify/require"
 )

--- a/tests/container_test.go
+++ b/tests/container_test.go
@ -3,19 +3,17 @@ package tests
 import (
 	"bytes"
 	"crypto/sha256"
-	"math/big"
 	"path"
 	"testing"

-	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/container"
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/nns"
 	"github.com/mr-tron/base58"
-	"github.com/nspcc-dev/neo-go/pkg/core/interop/storage"
 	"github.com/nspcc-dev/neo-go/pkg/encoding/address"
 	"github.com/nspcc-dev/neo-go/pkg/neotest"
 	"github.com/nspcc-dev/neo-go/pkg/util"
 	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
+	"github.com/nspcc-dev/neofs-contract/common"
+	"github.com/nspcc-dev/neofs-contract/container"
+	"github.com/nspcc-dev/neofs-contract/nns"
 	"github.com/stretchr/testify/require"
 )

@ -33,7 +31,7 @@ func deployContainerContract(t *testing.T, e *neotest.Executor, addrNetmap, addr
 	args[2] = addrBalance
 	args[3] = util.Uint160{} // not needed for now
 	args[4] = addrNNS
-	args[5] = "frostfs"
+	args[5] = "neofs"

 	c := neotest.CompileFile(t, e.CommitteeHash, containerPath, path.Join(containerPath, "config.yml"))
 	e.DeployContract(t, c, args)
@ -103,62 +101,15 @@ func TestContainerCount(t *testing.T) {
 	cnt3 := dummyContainer(acc1)
 	balanceMint(t, cBal, acc1, containerFee*1, []byte{})
 	c.Invoke(t, stackitem.Null{}, "put", cnt3.value, cnt3.sig, cnt3.pub, cnt3.token)
-	checkContainerList(t, c, [][]byte{cnt1.id[:], cnt2.id[:], cnt3.id[:]})

 	c.Invoke(t, stackitem.Null{}, "delete", cnt1.id[:], cnt1.sig, cnt1.token)
 	checkCount(t, 2)
-	checkContainerList(t, c, [][]byte{cnt2.id[:], cnt3.id[:]})

 	c.Invoke(t, stackitem.Null{}, "delete", cnt2.id[:], cnt2.sig, cnt2.token)
 	checkCount(t, 1)
-	checkContainerList(t, c, [][]byte{cnt3.id[:]})

 	c.Invoke(t, stackitem.Null{}, "delete", cnt3.id[:], cnt3.sig, cnt3.token)
 	checkCount(t, 0)
-	checkContainerList(t, c, [][]byte{})
-}
-
-func checkContainerList(t *testing.T, c *neotest.ContractInvoker, expected [][]byte) {
-	t.Run("check with `list`", func(t *testing.T) {
-		s, err := c.TestInvoke(t, "list", nil)
-		require.NoError(t, err)
-		require.Equal(t, 1, s.Len())
-
-		if len(expected) == 0 {
-			_, ok := s.Top().Item().(stackitem.Null)
-			require.True(t, ok)
-			return
-		}
-
-		arr, ok := s.Top().Value().([]stackitem.Item)
-		require.True(t, ok)
-		require.Equal(t, len(expected), len(arr))
-
-		actual := make([][]byte, 0, len(expected))
-		for i := range arr {
-			id, ok := arr[i].Value().([]byte)
-			require.True(t, ok)
-			actual = append(actual, id)
-		}
-		require.ElementsMatch(t, expected, actual)
-	})
-	t.Run("check with `containersOf`", func(t *testing.T) {
-		s, err := c.TestInvoke(t, "containersOf", nil)
-		require.NoError(t, err)
-		require.Equal(t, 1, s.Len())
-
-		iter, ok := s.Top().Value().(*storage.Iterator)
-		require.True(t, ok)
-
-		actual := make([][]byte, 0, len(expected))
-		for iter.Next() {
-			id, ok := iter.Value().Value().([]byte)
-			require.True(t, ok)
-			actual = append(actual, id)
-		}
-		require.ElementsMatch(t, expected, actual)
-	})
-
 }

 func TestContainerPut(t *testing.T) {
@ -195,14 +146,14 @@ func TestContainerPut(t *testing.T) {
 			stackitem.NewByteArray([]byte(base58.Encode(cnt.id[:]))),
 		})
 		cNNS := c.CommitteeInvoker(nnsHash)
-		cNNS.Invoke(t, expected, "resolve", "mycnt.frostfs", int64(nns.TXT))
+		cNNS.Invoke(t, expected, "resolve", "mycnt.neofs", int64(nns.TXT))

 		t.Run("name is already taken", func(t *testing.T) {
 			c.InvokeFail(t, "name is already taken", "putNamed", putArgs...)
 		})

 		c.Invoke(t, stackitem.Null{}, "delete", cnt.id[:], cnt.sig, cnt.token)
-		cNNS.Invoke(t, stackitem.Null{}, "resolve", "mycnt.frostfs", int64(nns.TXT))
+		cNNS.Invoke(t, stackitem.Null{}, "resolve", "mycnt.neofs", int64(nns.TXT))

 		t.Run("register in advance", func(t *testing.T) {
 			cnt.value[len(cnt.value)-1] = 10
@ -415,16 +366,6 @@ type estimation struct {
 }

 func checkEstimations(t *testing.T, c *neotest.ContractInvoker, epoch int64, cnt testContainer, estimations ...estimation) {
-	// Check that listed estimations match expected
-	listEstimations := getListEstimations(t, c, epoch, cnt)
-	requireEstimationsMatch(t, estimations, listEstimations)
-
-	// Check that iterated estimations match expected
-	iterEstimations := getIterEstimations(t, c, epoch)
-	requireEstimationsMatch(t, estimations, iterEstimations)
-}
-
-func getListEstimations(t *testing.T, c *neotest.ContractInvoker, epoch int64, cnt testContainer) []estimation {
 	s, err := c.TestInvoke(t, "listContainerSizes", epoch)
 	require.NoError(t, err)

@ -434,8 +375,9 @@ func getListEstimations(t *testing.T, c *neotest.ContractInvoker, epoch int64, c
 	item := s.Top().Item()
 	switch it := item.(type) {
 	case stackitem.Null:
+		require.Equal(t, 0, len(estimations))
 		require.Equal(t, stackitem.Null{}, it)
-		return make([]estimation, 0)
+		return
 	case *stackitem.Array:
 		id, err = it.Value().([]stackitem.Item)[0].TryBytes()
 		require.NoError(t, err)
@ -446,52 +388,25 @@ func getListEstimations(t *testing.T, c *neotest.ContractInvoker, epoch int64, c
 	s, err = c.TestInvoke(t, "getContainerSize", id)
 	require.NoError(t, err)

-	// Here and below we assume that all estimations in the contract are related to our container
 	sizes := s.Top().Array()
 	require.Equal(t, cnt.id[:], sizes[0].Value())

-	return convertStackToEstimations(sizes[1].Value().([]stackitem.Item))
-}
-
-func getIterEstimations(t *testing.T, c *neotest.ContractInvoker, epoch int64) []estimation {
-	iterStack, err := c.TestInvoke(t, "iterateContainerSizes", epoch)
-	require.NoError(t, err)
-	iter := iterStack.Pop().Value().(*storage.Iterator)
-
-	// Iterator contains pairs: key + estimation (as stack item), we extract estimations only
-	pairs := iteratorToArray(iter)
-	estimationItems := make([]stackitem.Item, len(pairs))
-	for i, pair := range pairs {
-		pairItems := pair.Value().([]stackitem.Item)
-		estimationItems[i] = pairItems[1]
-	}
-
-	return convertStackToEstimations(estimationItems)
-}
-
-func convertStackToEstimations(stackItems []stackitem.Item) []estimation {
-	estimations := make([]estimation, 0, len(stackItems))
-	for _, item := range stackItems {
-		value := item.Value().([]stackitem.Item)
-		from := value[0].Value().([]byte)
-		size := value[1].Value().(*big.Int)
-
-		estimation := estimation{from: from, size: size.Int64()}
-		estimations = append(estimations, estimation)
-	}
-	return estimations
-}
-
-func requireEstimationsMatch(t *testing.T, expected []estimation, actual []estimation) {
-	require.Equal(t, len(expected), len(actual))
-	for _, e := range expected {
+	actual := sizes[1].Value().([]stackitem.Item)
+	require.Equal(t, len(estimations), len(actual))
+	for i := range actual {
+		// type estimation struct {
+		// 	from interop.PublicKey
+		// 	size int
+		// }
+		est := actual[i].Value().([]stackitem.Item)
+		pub := est[0].Value().([]byte)
 		found := false
-		for _, a := range actual {
-			if found = bytes.Equal(e.from, a.from); found {
-				require.Equal(t, e.size, a.size)
+		for i := range estimations {
+			if found = bytes.Equal(estimations[i].from, pub); found {
+				require.Equal(t, stackitem.Make(estimations[i].size), est[1])
 				break
 			}
 		}
-		require.True(t, found, "expected estimation from %x to be present", e.from)
+		require.True(t, found, "expected estimation from %x to be present", pub)
 	}
 }
--- a/tests/frostfs_test.go
+++ b/tests/frostfs_test.go
@ -6,7 +6,6 @@ import (
 	"sort"
 	"testing"

-	"git.frostfs.info/TrueCloudLab/frostfs-contract/frostfs"
 	"github.com/nspcc-dev/neo-go/pkg/core/native/nativenames"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/nspcc-dev/neo-go/pkg/neotest"
@ -15,12 +14,13 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/vm"
 	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
 	"github.com/nspcc-dev/neo-go/pkg/wallet"
+	"github.com/nspcc-dev/neofs-contract/neofs"
 	"github.com/stretchr/testify/require"
 )

-const frostfsPath = "../frostfs"
+const neofsPath = "../neofs"

-func deployFrostFSContract(t *testing.T, e *neotest.Executor, addrProc util.Uint160,
+func deployNeoFSContract(t *testing.T, e *neotest.Executor, addrProc util.Uint160,
 	pubs keys.PublicKeys, config ...interface{}) util.Uint160 {
 	args := make([]interface{}, 5)
 	args[0] = false
@ -33,12 +33,12 @@ func deployFrostFSContract(t *testing.T, e *neotest.Executor, addrProc util.Uint
 	args[2] = arr
 	args[3] = append([]interface{}{}, config...)

-	c := neotest.CompileFile(t, e.CommitteeHash, frostfsPath, path.Join(frostfsPath, "config.yml"))
+	c := neotest.CompileFile(t, e.CommitteeHash, neofsPath, path.Join(neofsPath, "config.yml"))
 	e.DeployContract(t, c, args)
 	return c.Hash
 }

-func newFrostFSInvoker(t *testing.T, n int, config ...interface{}) (*neotest.ContractInvoker, neotest.Signer, keys.PublicKeys) {
+func newNeoFSInvoker(t *testing.T, n int, config ...interface{}) (*neotest.ContractInvoker, neotest.Signer, keys.PublicKeys) {
 	e := newExecutor(t)

 	accounts := make([]*wallet.Account, n)
@ -66,7 +66,7 @@ func newFrostFSInvoker(t *testing.T, n int, config ...interface{}) (*neotest.Con
 	}

 	alphabet := neotest.NewMultiSigner(accounts...)
-	h := deployFrostFSContract(t, e, util.Uint160{}, pubs, config...)
+	h := deployNeoFSContract(t, e, util.Uint160{}, pubs, config...)

 	gasHash, err := e.Chain.GetNativeContractScriptHash(nativenames.Gas)
 	require.NoError(t, err)
@ -79,8 +79,22 @@ func newFrostFSInvoker(t *testing.T, n int, config ...interface{}) (*neotest.Con
 	return e.CommitteeInvoker(h).WithSigners(alphabet), alphabet, pubs
 }

-func TestFrostFS_InnerRingCandidate(t *testing.T) {
-	e, _, _ := newFrostFSInvoker(t, 4, frostfs.CandidateFeeConfigKey, int64(10))
+func TestNeoFS_AlphabetList(t *testing.T) {
+	const alphabetSize = 4
+
+	e, _, pubs := newNeoFSInvoker(t, alphabetSize)
+	arr := make([]stackitem.Item, len(pubs))
+	for i := range arr {
+		arr[i] = stackitem.NewStruct([]stackitem.Item{
+			stackitem.NewByteArray(pubs[i].Bytes()),
+		})
+	}
+
+	e.Invoke(t, stackitem.NewArray(arr), "alphabetList")
+}
+
+func TestNeoFS_InnerRingCandidate(t *testing.T) {
+	e, _, _ := newNeoFSInvoker(t, 4, neofs.CandidateFeeConfigKey, int64(10))

 	const candidateCount = 3

--- a/tests/frostfsid_test.go
+++ b/tests/frostfsid_test.go
@ -6,30 +6,30 @@ import (
 	"sort"
 	"testing"

-	"git.frostfs.info/TrueCloudLab/frostfs-contract/container"
 	"github.com/mr-tron/base58"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/nspcc-dev/neo-go/pkg/encoding/address"
 	"github.com/nspcc-dev/neo-go/pkg/neotest"
 	"github.com/nspcc-dev/neo-go/pkg/util"
 	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
+	"github.com/nspcc-dev/neofs-contract/container"
 	"github.com/stretchr/testify/require"
 )

-const frostfsidPath = "../frostfsid"
+const neofsidPath = "../neofsid"

-func deployFrostFSIDContract(t *testing.T, e *neotest.Executor, addrNetmap, addrContainer util.Uint160) util.Uint160 {
+func deployNeoFSIDContract(t *testing.T, e *neotest.Executor, addrNetmap, addrContainer util.Uint160) util.Uint160 {
 	args := make([]interface{}, 5)
 	args[0] = false
 	args[1] = addrNetmap
 	args[2] = addrContainer

-	c := neotest.CompileFile(t, e.CommitteeHash, frostfsidPath, path.Join(frostfsidPath, "config.yml"))
+	c := neotest.CompileFile(t, e.CommitteeHash, neofsidPath, path.Join(neofsidPath, "config.yml"))
 	e.DeployContract(t, c, args)
 	return c.Hash
 }

-func newFrostFSIDInvoker(t *testing.T) *neotest.ContractInvoker {
+func newNeoFSIDInvoker(t *testing.T) *neotest.ContractInvoker {
 	e := newExecutor(t)

 	ctrNNS := neotest.CompileFile(t, e.CommitteeHash, nnsPath, path.Join(nnsPath, "config.yml"))
@ -43,12 +43,12 @@ func newFrostFSIDInvoker(t *testing.T) *neotest.ContractInvoker {
 		container.AliasFeeKey, int64(containerAliasFee))
 	deployBalanceContract(t, e, ctrNetmap.Hash, ctrContainer.Hash)
 	deployContainerContract(t, e, ctrNetmap.Hash, ctrBalance.Hash, ctrNNS.Hash)
-	h := deployFrostFSIDContract(t, e, ctrNetmap.Hash, ctrContainer.Hash)
+	h := deployNeoFSIDContract(t, e, ctrNetmap.Hash, ctrContainer.Hash)
 	return e.CommitteeInvoker(h)
 }

-func TestFrostFSID_AddKey(t *testing.T) {
-	e := newFrostFSIDInvoker(t)
+func TestNeoFSID_AddKey(t *testing.T) {
+	e := newNeoFSIDInvoker(t)

 	pubs := make([][]byte, 6)
 	for i := range pubs {
--- a/tests/netmap_test.go
+++ b/tests/netmap_test.go
@ -7,14 +7,14 @@ import (
 	"strings"
 	"testing"

-	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/container"
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/netmap"
 	"github.com/nspcc-dev/neo-go/pkg/encoding/bigint"
 	"github.com/nspcc-dev/neo-go/pkg/neotest"
 	"github.com/nspcc-dev/neo-go/pkg/util"
 	"github.com/nspcc-dev/neo-go/pkg/vm"
 	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
+	"github.com/nspcc-dev/neofs-contract/common"
+	"github.com/nspcc-dev/neofs-contract/container"
+	"github.com/nspcc-dev/neofs-contract/netmap"
 	"github.com/stretchr/testify/require"
 )

--- a/tests/nns_test.go
+++ b/tests/nns_test.go
@ -8,10 +8,10 @@ import (
 	"testing"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-contract/nns"
 	"github.com/nspcc-dev/neo-go/pkg/core/interop/storage"
 	"github.com/nspcc-dev/neo-go/pkg/neotest"
 	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
+	"github.com/nspcc-dev/neofs-contract/nns"
 	"github.com/stretchr/testify/require"
 )

--- a/tests/processing_test.go
+++ b/tests/processing_test.go
@ -11,21 +11,21 @@ import (

 const processingPath = "../processing"

-func deployProcessingContract(t *testing.T, e *neotest.Executor, addrFrostFS util.Uint160) util.Uint160 {
+func deployProcessingContract(t *testing.T, e *neotest.Executor, addrNeoFS util.Uint160) util.Uint160 {
 	c := neotest.CompileFile(t, e.CommitteeHash, processingPath, path.Join(processingPath, "config.yml"))

 	args := make([]interface{}, 1)
-	args[0] = addrFrostFS
+	args[0] = addrNeoFS

 	e.DeployContract(t, c, args)
 	return c.Hash
 }

 func newProcessingInvoker(t *testing.T) (*neotest.ContractInvoker, neotest.Signer) {
-	frostfsInvoker, irMultiAcc, _ := newFrostFSInvoker(t, 2)
-	hash := deployProcessingContract(t, frostfsInvoker.Executor, frostfsInvoker.Hash)
+	neofsInvoker, irMultiAcc, _ := newNeoFSInvoker(t, 2)
+	hash := deployProcessingContract(t, neofsInvoker.Executor, neofsInvoker.Hash)

-	return frostfsInvoker.CommitteeInvoker(hash), irMultiAcc
+	return neofsInvoker.CommitteeInvoker(hash), irMultiAcc
 }

 func TestVerify_Processing(t *testing.T) {
--- a/tests/subnet_test.go
+++ b/tests/subnet_test.go
@ -5,12 +5,12 @@ import (
 	"path"
 	"testing"

-	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/subnet"
 	"github.com/nspcc-dev/neo-go/pkg/neotest"
 	"github.com/nspcc-dev/neo-go/pkg/util"
 	"github.com/nspcc-dev/neo-go/pkg/vm"
 	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
+	"github.com/nspcc-dev/neofs-contract/common"
+	"github.com/nspcc-dev/neofs-contract/subnet"
 	"github.com/stretchr/testify/require"
 )

--- a/tests/util.go
+++ b/tests/util.go
@ -3,20 +3,10 @@ package tests
 import (
 	"testing"

-	"github.com/nspcc-dev/neo-go/pkg/core/interop/storage"
 	"github.com/nspcc-dev/neo-go/pkg/neotest"
 	"github.com/nspcc-dev/neo-go/pkg/neotest/chain"
-	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
 )

-func iteratorToArray(iter *storage.Iterator) []stackitem.Item {
-	stackItems := make([]stackitem.Item, 0)
-	for iter.Next() {
-		stackItems = append(stackItems, iter.Value())
-	}
-	return stackItems
-}
-
 func newExecutor(t *testing.T) *neotest.Executor {
 	bc, acc := chain.NewSingle(t)
 	return neotest.NewExecutor(t, bc, acc, acc)
--- a/tests/version_test.go
+++ b/tests/version_test.go
@ -1,29 +0,0 @@
-package tests
-
-import (
-	"os"
-	"strconv"
-	"strings"
-	"testing"
-
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/common"
-	"github.com/stretchr/testify/require"
-)
-
-func TestVersion(t *testing.T) {
-	data, err := os.ReadFile("../VERSION")
-	require.NoError(t, err)
-
-	v := strings.TrimPrefix(string(data), "v")
-	parts := strings.Split(strings.TrimSpace(v), ".")
-	require.Len(t, parts, 3)
-
-	var ver [3]int
-	for i := range parts {
-		ver[i], err = strconv.Atoi(parts[i])
-		require.NoError(t, err)
-	}
-
-	require.Equal(t, common.Version, ver[0]*1_000_000+ver[1]*1_000+ver[2],
-		"version from common package is different from the one in VERSION file")
-}