Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #187397
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
458ms
Block → Canton commit
458ms
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.
0xf8ac15850f6ca6b2828259a29423e5dee888c67549a750290c1ba14a94c855229a80b84440c10f19000000000000000000000000622b46c660097104321c67f5c5ba309b21a225da00000000000000000000000000000000000000000000003635c9adc5dea00000831c946da0fa56a3539d6dd10364f9a0237d168729e3572cc395a0e08810baeb4f78e50eb0a0337e2551baf9f7a41493418be7a9166f8306737686271fa3bafccce8d034d152