Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #55454
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
376ms
Block → Canton commit
376ms
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.
0xf871821c0b858bb2c9700882520894f83f30b5a3856354fd6565236c4216673d7d8fc288016345785d8a000080831c946ea0d5ecdfc3c96df0ec1a8b72b2bcac93a61010b123ecf38a575e8cbfe7496f5f9ba00389d874b139e7faac97625c25fb24ad7bde7b1bb2dc68a5c250417f28731b0c