Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #120401
Measured from on-chain timestamps only: the EVM block timestamp, which the producer chose when it planned the block (whole seconds), and the record time (commit) of the Gateway_FinalizeBlock transaction; a commit that reads slightly before the block timestamp (rounding) shows as 0. The gateway-build-block external call runs inside that transaction and is not timed on its own; the import into the execution layers follows the commit and its time is not observable here, so those steps are markers without a duration.
Total
555ms
Block → Canton commit
555ms
block timestamp → record time (±1s)
Measured from on-chain timestamps: the EVM block timestamp, chosen when the producer planned the block, and the record time (commit) of the Gateway_FinalizeBlock transaction. The block timestamp is whole seconds and follows Canton's ledger time, so the span carries up to ±1s of rounding; a commit that reads slightly before the block timestamp shows as 0.
0x02f874830e4a250a843b9aca0e843b9aca0e82520894eb409b2437731bc55e59fa39659c14d555f489c8870232115678a00080c001a0f2571862d8ba4c4311ff2ccf36335cf09dd762c43c2f7900fb3b4aff7c8bde22a00f2bff9337b9857b95e2b1c602bf9514fb5bd531abfcdf5f8d65e5977981981c