Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #55587
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
495ms
Block → Canton commit
495ms
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.
0xf8ac80858bb2c970088259a294a88dda1ea7515e8a9c1b327af548c85e79ed1b3480b84440c10f190000000000000000000000004aa188bb4eda25f378616d90587155b8fbb0448300000000000000000000000000000000000000000000003635c9adc5dea00000831c946da02e3fd7f110493e06e720f984f9abde96d2ddef304c5e81e00489a75439628c9fa073af226d366495b9bada00a17f204d75cc98989a5cfb1bd0067ca15981cf252b