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

# Install ckBTC index

This proposal installs the mainnet ckBTC index to the governance-controlled canister ID `n5wcd-faaaa-aaaar-qaaea-cai` on the `pzp6e-ekpqk-3c5x7-2h6so-njoeq-mt45d-h3h6c-q3mxf-vpeq5-fk5o7-yae` subnet.

The compressed canister WebAssembly module is built from commit `37ce7040991cd7701b1bfe8f39ed0f419cbcca77`.

The compressed module hash is `2b69627e40bbf4f392e6dc41a0bb0d30124b03eed4c633294020134dcd7cbdc0`.

You can run the following script from the root of the IC repository to recompute the canister init args (where `didc` can be obtained from the https://github.com/dfinity/candid repository):

```shell
git fetch
git checkout 37ce7040991cd7701b1bfe8f39ed0f419cbcca77
cd rs/bitcoin/ckbtc/minter
didc encode -d ../../../rosetta-api/icrc1/index/index.did -t '(InitArgs)' '(record { ledger_id = principal "mxzaz-hqaaa-aaaar-qaada-cai" })'
```

`mxzaz-hqaaa-aaaar-qaada-cai` is the canister of the ckBTC ledger (see proposal [104499](https://dashboard.internetcomputer.org/proposal/104499)).

## Wasm Verification

To build the wasm module yourself and verify its hash, run the following commands from the root of the ic repo:

```
git fetch
git checkout 37ce7040991cd7701b1bfe8f39ed0f419cbcca77
./gitlab-ci/container/build-ic.sh -c
sha256sum artifacts/canisters/ic-icrc1-index.wasm.gz
```


Upgrade Nns Canister: n5wcd-faaaa-aaaar-qaaea-cai to wasm with hash: 2b69627e40bbf4f392e6dc41a0bb0d30124b03eed4c633294020134dcd7cbdc0