Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #19640
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
748ms
Block → Canton commit
748ms
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.
0xf8ac80858bb2c9700882598394b778d58e24c877095693fc7800b3ee5834773d8080b84440c10f190000000000000000000000003bd90f934096fc7800028daf3a919eaacede823600000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea07eb0788f40c868094448062dc3a1cde938e60fe7e2066cfe720cfca803ff409ba06f77422dd9f7488f666ebb697d349772ec41ab22d49dc62e131e231f6a8e1d32