Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #51901
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
656ms
Block → Canton commit
656ms
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.
0xf87182052f853a1cf2608382520894b6f97c16b82c72f4eb405d15ae30cfd8a26a39c288016345785d8a000080831c946ea003a55dda885ead49ca072a5091ce4b3d6cf940cd75274f8df7f5e7fe08ce26c7a03670e1e9f342a0d5136735a7d219d2ad9f96f902f08307b6599e8fb3f28004bb