DFINITY Foundation

Internet Computer Association

Synapse.vote (formerly ICP Maximalist Network)

Arthur’s Neuron (used to be cycle_dao)

ICDevs.org

CryptoIsGood

Anvil

ICPL.app

The Fools' Court

ysyms

The Accumulators’ Neuron

RawTech Venture

Paul Young

ICPMANUAL

8yeargangDAO

John Wiegley

Isaac Valadez

Krzysztof Żelazko

Always Rejects

Nicolas.ic

Smaug’s Neuron for Retail Investors

# Proposal to Upgrade the ckBTC Minter Canister

Git hash: `80e04d5e24b6e2dbd880781885ae74aac667a237`

New compressed Wasm hash: `276d0aa5082d02bd9c76a1e304c79dba21aa833dccd1f450de0704e7731c1532`

Target canister: `mqygn-kiaaa-aaaar-qaadq-cai`

Previous ckBTC Minter proposal: https://dashboard.internetcomputer.org/proposal/105141
---

## Motivation

With this upgrade, we allow all principals to convert ckBTC to BTC.
Note that converting BTC to ckBTC is still restricted.

## Upgrade args

```
git fetch
git checkout 80e04d5e24b6e2dbd880781885ae74aac667a237
cd rs/bitcoin/ckbtc/minter
didc encode -d ckbtc_minter.did -t '(UpgradeArgs)' '(record { mode = opt variant { DepositsRestrictedTo = vec { principal "47gy6-2c22d-voqoy-eflbe-gwml3-zwe52-r6lx7-rexro-ebluo-2rqcd-sae" } } })'
```

## Release Notes

```
$ git log --format="%C(auto) %h %s" 123f4bd3c0b0070180500cddf4c60da07035de98..80e04d5e24b6e2dbd880781885ae74aac667a237 rs/bitcoin/ckbtc/minter
 950570eeb1 feat(FI-601): [ckbtc] add a mode for restricted deposits
 59ffc942b6 feat(ckbtc): report confirmation number in update_balance
 7a2ceed82d chore: remove warning from ckBTC minter readme
 d2fbe0ea1c feat(FI-585): [ckbtc] move heartbeat logic to timers
 1730a41cda fix(ckBTC): avoid using terms "wrap" and "unwrap"
 1200032dc7 feat(FI-562) Add Upgrade Args to the icrc1 ledger
```

## Wasm Verification

Verify that the hash of the gzipped WASM matches the proposed hash.

```
git fetch
git checkout 80e04d5e24b6e2dbd880781885ae74aac667a237
./gitlab-ci/container/build-ic.sh -c
sha256sum ./artifacts/canisters/ic-ckbtc-minter.wasm.gz
```



Upgrade Nns Canister: mqygn-kiaaa-aaaar-qaadq-cai to wasm with hash: 276d0aa5082d02bd9c76a1e304c79dba21aa833dccd1f450de0704e7731c1532