Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #12307
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
660ms
Block → Canton commit
660ms
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.
0x02f871830e4a2501843b9aca00843b9aca1582f7de9448a93882efabc48ac0c6aef145e7928255393caa8084d09de08ac001a0c9170aa042489d11fb372654022cd37e0333a6f383eccdf5fa80c3a7f997aa5fa036df0b5fd0a140054f7ca55467fa4b99132c50f5b5b8aee03fa7cedc799d62fd