Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #4256
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
19ms
Block → Canton commit
19ms
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.
0x02f879830e4a25820b6c85188122883f85188122884782520894e6bd31d8abfac13db329b2c76ceafac52040e378880de0b6b3a764000080c080a0bd48cfdf1ad3c1ae75effa0dd56c1cd2abaf93b9a712dfe67fa63167c143a39ea01ea626cdb7ffe05e144d701c9e7b2e357efe8cdc24ad5ed0bff43267cb0fee3a