Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #16929
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
510ms
Block → Canton commit
510ms
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.
0xf8ac80858bb2c970088259a2945345a589ea2a5896673ff13987bcda49d3569be780b84440c10f19000000000000000000000000b56a234bc2e2993017e4e26c2b4a50a6b392d5ab00000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea001f0f0648cde4853e2b5b955c10b30b52cee276dd28858cac5ea372726fa2e4ba02315c5be63b9a9def4e490b624d3be3d1c301fa28be9c069f07ecca4022c025b