Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #2656
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
310ms
Block → Canton commit
310ms
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.
0x02f893830e4a2502851881228846851881228846826df8941155f2236755dcc2ec0b51d193f990582372574e80a460fe47b1000000000000000000000000000000000000000000000000000000000000000ac001a0efaad68e89aad20fe4e71fd5d78328455913c54cf4447b3161899e9159ccb0e6a07a6d48346c4cf742b29ba17d2404b365cf9d428557a5243edd4e48f197ed5c9f