DFINITY Foundation

ICDevs.org

CryptoIsGood

Anvil

ICPL.app

ysyms

The Accumulators’ Neuron

RawTech Venture

Paul Young

ICPMANUAL

8YearGangDAO

Isaac Valadez

Krzysztof

Nicolas.ic

Smaug’s Neuron for Retail Investors

ICLight.io

Taggr Network

Sonic AMM

Rakeoff.io

OpenChat

ELNA AI

GEEKFACTORY

ICP Hub México

ICP Hub Poland

Jerry Banfield

WaterNeuron

ICP Hub Bulgaria

Gold DAO

NeuronPool

LORIMER ♾️ 🐶

B3Pay

ZenithCode

Aviate Labs

D-QUORUM

Yuku AI

CO.DELTA △

DragginCorp

Gwojda

Thyassa

🌮 TACO DAO Neuron

Ωmega-reject

Ωmega-vote

αlpha-vote

Cybersecurity

cyberowl

Dexter Caff/acc

JMVR

Smacker

HashEra

Install, reinstall or upgrade code of a canister controlled by the NNS.

# Proposal to upgrade the ckBTC ledger canister

Repository: `https://github.com/dfinity/ic.git`

Git hash: `cf41372e3d4dc1accfe2c09a7969f8bddc729dc1`

New compressed Wasm hash: `354dd6ecfdc72b5409805b31dea22c9db11df6e14095a5a68924eb63535e6d8a`

Upgrade args hash: `24625928c7f095e298e75e821b69e117baca30508bf2239322d7634a99d7a82f`

Target canister: `mxzaz-hqaaa-aaaar-qaada-cai`

Previous ckBTC ledger proposal: https://dashboard.internetcomputer.org/proposal/143756

---

## Motivation

Effectively disable block archiving on the ckBTC ledger, by raising the archiving trigger threshold to
4_200_000_000 blocks. The Wasm module is not changed: the hash above is the hash of the module
this canister is already running. The sole effect of this proposal is the upgrade argument.

## Release Notes

```
The Wasm module is unchanged by this proposal. The proposed module hash
354dd6ecfdc72b5409805b31dea22c9db11df6e14095a5a68924eb63535e6d8a
is identical to the module hash currently running on `mxzaz-hqaaa-aaaar-qaada-cai`, and is built from
cf41372e3d4dc1accfe2c09a7969f8bddc729dc1, the same commit the canister was last upgraded to. There are therefore no code changes to
report.
```

## Upgrade args

```
git fetch
git checkout cf41372e3d4dc1accfe2c09a7969f8bddc729dc1
didc encode -d rs/ledger_suite/icrc1/ledger/ledger.did -t '(LedgerArg)' '(variant { Upgrade = opt record { change_archive_options = opt record { trigger_threshold = opt (4_200_000_000 : nat64); }; } })' | xxd -r -p | sha256sum
```

## Wasm Verification

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

```
git fetch
git checkout cf41372e3d4dc1accfe2c09a7969f8bddc729dc1
"./ci/container/build-ic.sh" "--canisters"
sha256sum ./artifacts/canisters/ic-icrc1-ledger.wasm.gz
```


Upgrade NNS Canister: mxzaz-hqaaa-aaaar-qaada-cai to wasm with hash: 354dd6ecfdc72b5409805b31dea22c9db11df6e14095a5a68924eb63535e6d8a