Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8674
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
610ms
Block → Canton commit
610ms
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.
0x02f879830e4a25821896851ee02663fe851ee0266406825208940ccb3cf95b34a972eee46329adb98d707b7d2b11880de0b6b3a764000080c001a0268a235d2a63ea8cae19eea0845c744b64737c3251ddf69bca912ae4acd9eee5a057cf01e9e5fb35c3c45bc3787562bf1646e89fcc34465926f673d6eb3e4f7261