Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #4554
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
999ms
Block → Canton commit
999ms
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.
0x02f879830e4a25820c5885188122883f8518812288478252089414040d963e08ea6fc758d61868e4f340e7632946880de0b6b3a764000080c080a07af65808856e4f5d72cb7a8c40b063fa534eb3ceccfb5f04cc9d4676fcbc7a4fa018ff2438b611633b7e970a3c571b5fe77f07b79ab7ed92f26a749c54bc48ec1d