Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #40639
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
677ms
Block → Canton commit
677ms
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.
0xf8ac80858bb2c970088259a294e0a45ef66d2db5e766eba1f70e21a4bf1f901b8780b84440c10f190000000000000000000000000f781f63753af6c0f51f1f7511867b8755ad99ff00000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0187d1961adaa288db70133d987dfd360a4f4635b336dc404b194ab79e10a5b7aa02d94c1dd86bb6ff548119cf09fc6b61e53f8c6f5714a2762c75129bbf4c35fea