Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #655
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
670ms
Block → Canton commit
670ms
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.
0x02f878830e4a2581cb85011c033c7e85011c033c868252089427ec7bdb1ce49588d4d4ae1752b0811bdf861f05880de0b6b3a764000080c080a0eae7089337fde5f55bae091b44bb04d0b38f636d2810adb78efed5c1fc83b1dda06f3d9a27e742865ac0971082246cf6873651b3ff46fa73a45cd9e7b7d15f5f32