Failing to convert BTC to CKBTC in local setup

Developers
1

I’m trying to convert BTC to CkBTC in my local setup, but I’m failing.

here is my deployment script

dfx deploy --specified-id ml52i-qqaaa-aaaar-qaaba-cai ckbtc_minter --argument '(variant{
        Init = record {
                btc_network = variant { Regtest };
                ledger_id = principal "mc6ru-gyaaa-aaaar-qaaaq-cai";
                ecdsa_key_name = "dfx_test_key";
                retrieve_btc_min_amount = 10_000;
                max_time_in_queue_nanos = 420_000_000_000;
                min_confirmations = opt 1;
                mode = variant { GeneralAvailability };
                kyt_fee = opt 1_333;
                kyt_principal = opt principal "pvm5g-xaaaa-aaaar-qaaia-cai"                
}
})'

PRINCIPAL="$(dfx identity get-principal)"

dfx deploy --specified-id mc6ru-gyaaa-aaaar-qaaaq-cai ckbtc_ledger --argument '(variant{
        Init = record{
                token_symbol = "ckBTC";
                token_name = "Chain Ley Local Bitcoin";
                minting_account = record { owner = principal "ml52i-qqaaa-aaaar-qaaba-cai" };
                transfer_fee = 11_500;
                metadata = vec {};
                initial_balances = vec {};
                archive_options = record {
                        num_blocks_to_archive = 10_000;
                        trigger_threshold = 20_000;
                        controller_id = principal "'$PRINCIPAL'";
                        cycles_for_archive_creation = opt 1_000_000_000_000;
                        max_message_size_bytes = null;
                        node_max_memory_size_bytes = opt 3_221_225_472;
        };
        feature_flags = opt record { icrc2 = true };
}
})'

dfx deploy --specified-id pvm5g-xaaaa-aaaar-qaaia-cai ckbtc_kyt --argument '(variant{
        InitArg = record {
                api_key = "";
                minter_id = principal "ml52i-qqaaa-aaaar-qaaba-cai";
                maintainers = vec {principal "'$PRINCIPAL'" };
                mode = variant { AcceptAll };
}
})'

dfx deploy --specified-id mm444-5iaaa-aaaar-qaabq-cai ckbtc_index --argument '(opt variant{
        Init = record{
                ledger_id = principal "mc6ru-gyaaa-aaaar-qaaaq-cai";
}
})'

Here is the steps I followed,

$ dfx identity get-principal
u3chv-6rta2-bf3vt-ttvj7-epxse-o6e4d-qf3ng-pjky2-zqvld-dutpz-sqe

$ dfx canister call ckbtc_minter get_btc_address '(record{ owner= opt principal "u3chv-6rta2-bf3vt-ttvj7-epxse-o6e4d-qf3ng-pjky2-zqvld-dutpz-sqe"; subaccount= null })'
("bcrt1qtpdealdncn2jfkh9spka3k4yvzu9fhyvwd8q8y")

$ docker compose exec bitcoind bitcoin-cli generatetoaddress 1 bcrt1qtpdealdncn2jfkh9spka3k4yvzu9fhyvwd8q8y

$ docker compose exec bitcoind bitcoin-cli -generate 101

$ dfx canister call ckbtc_minter update_balance '(record { owner = opt principal "u3chv-6rta2-bf3vt-ttvj7-epxse-o6e4d-qf3ng-pjky2-zqvld-dutpz-sqe"; subaccount=n
ull })'
(
  variant {
    Ok = vec {
      variant {
        Checked = record {
          height = 408 : nat32;
          value = 1_250_000_000 : nat64;
          outpoint = record {
            txid = blob "\6a\12\85\4c\8b\cc\7a\68\f3\da\61\da\a0\10\68\48\29\e7\97\71\3a\40\b0\3c\d1\75\55\59\5f\c2\69\9f";
            vout = 0 : nat32;
          };
        }
      };
    }
  },
)

$ dfx canister call ckbtc_ledger icrc1_total_supply
(0 : nat)
3

The ckBTC minter dashboard can also help with debugging. It should be accessible by this URL:

http://ml52i-qqaaa-aaaar-qaaba-cai.localhost:PORT/dashboard

Replace PORT with the actual port number of your local dfx/replica.

3 Likes
4

Also, since you are running a local bitcoin in RegTest mode, please make sure its block height is advanced to make progress.

1 Like
5

I see this error in the log,

Failed to mint ckBTC for UTXO 711c2f5231cfdbc7b113f5c72f8ad34ec5eeadba40041c00ec62fb876da3ffe1:0: 
TemporarilyUnavailable("cannot mint ckbtc: IC0503: Canister mc6ru-gyaaa-aaaar-qaaaq-cai trapped explicitly: the memo field size of 41 bytes is above the allowed limit of 32 bytes (reject_code = 5)")
6

You can try re-deploy ckBTC ledger with a bigger max_memo_length, e.g. 80 bytes.

4 Likes
7

Exactly, I think Paul found the problem. You can see in this proposal Proposal: 123422 - ICP Dashboard that the ckBTC ledger was upgraded to use 80 byte memos.

2 Likes
8

thank you, it works now…

3 Likes