Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #18989
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
880ms
Block → Canton commit
880ms
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.
0xf8ac808501bade149f8259a294a0809c6182efe54bed9243c93944d1041615b8f280b84440c10f19000000000000000000000000de1736df22560346b2a3549828074569503059f500000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea067cb1041a9d22f05ad952d456bb584e2f0d71136ea618a5fbdd303bafde6aae2a042a12992130618b0b49fb55142b9d652dc9de5fb9f9ccbd7ebbf853f7d18bfbf