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John Wiegley

# Upgrade the Bitcoin Testnet Canister

## Summary

This is the second proposal in the re-bootstrap process of the Bitcoin testnet canister, to be executed after [133308](https://dashboard.internetcomputer.org/proposal/133308), to rebootstrap the Bitcoin testnet canister. In this proposal, the uploader wasm is upgraded into the Bitcoin canister's wasm.

## Wasm Verification

The canister is upgraded to the same Wasm as the last regular release which was adopted in [132171](https://dashboard.internetcomputer.org/proposal/132171).

NOTE: This process is not yet guaranteed to match on Apple Silicon.

```shell
# Clone bitcoin-canister repo.
$ git clone git@github.com:dfinity/bitcoin-canister.git
$ cd bitcoin-canister
$ git checkout 4884a838958eab01cdf61fa4a1a7b5d19c5fdf32

# Build all the docker canisters.
$ docker build -t canisters .

# Extract canister's wasm.
$ docker run --rm --entrypoint cat canisters /ic-btc-canister.wasm.gz > ic-btc-canister.wasm.gz

# Calculate SHA-256 of the canister's wasm.
$ sha256sum ic-btc-canister.wasm.gz
```

You should then see the following output:

```shell
d0ada614be09055f37d45d8ad92560432c86b426d9e66f42609ce64007a13c3e  ic-btc-canister.wasm.gz
```

## Upgrade Args Verification
A set of arguments are passed to the canister to set the correct configuration for the Bitcoin testnet.

```shell
# Set the arguments
$ ARG="(opt record {
    stability_threshold = opt 144;
    syncing = opt variant { enabled };
    burn_cycles = opt variant { enabled };
    api_access = opt variant { enabled };
    lazily_evaluate_fee_percentiles = opt variant { enabled };
    fees = opt record {
        get_current_fee_percentiles = 4_000_000 : nat;
        get_block_headers_base = 20_000_000;
        get_block_headers_cycles_per_ten_instructions = 4;
        get_block_headers_maximum = 4_000_000_000;
        get_utxos_maximum = 4_000_000_000 : nat;
        get_current_fee_percentiles_maximum = 40_000_000 : nat;
        send_transaction_per_byte = 8_000_000 : nat;
        get_balance = 4_000_000 : nat;
        get_utxos_cycles_per_ten_instructions = 4 : nat;
        get_utxos_base = 20_000_000 : nat;
        get_balance_maximum = 40_000_000 : nat;
        send_transaction_base = 2_000_000_000 : nat;
    };
    watchdog_canister = opt opt principal \"gjqfs-iaaaa-aaaan-aaada-cai\";
})"

# Compute the hash of the args
$ didc encode -d ./canister/candid.did -t '(opt set_config_request)' "$ARG" | xxd -r -p | sha256sum
```

Expected output:
```
e129040f023b1b39c3016d604366cea83180c51ec0324426fee00f27ee731f89
```


Upgrade NNS Canister: g4xu7-jiaaa-aaaan-aaaaq-cai to wasm with hash: d0ada614be09055f37d45d8ad92560432c86b426d9e66f42609ce64007a13c3e