Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #18378
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
540ms
Block → Canton commit
540ms
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.
0xf8ac80858bb2c970088259a294e0a45ef66d2db5e766eba1f70e21a4bf1f901b8780b84440c10f1900000000000000000000000019a02895f187a5598a2dfb9e823b29abbbf854f200000000000000000000000000000000000000000000003635c9adc5dea00000831c946da0608d667fa57882dbaf012015305e57c7f72d1b8de8f311dbf64188c0d50116f3a01b2b3596597cfc805219fa86b35f2315fca16f5436c1e6f9d2f321d0d17aeb0f