Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #54915
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
505ms
Block → Canton commit
505ms
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.
0xf8ac03858bb2c970088259a2940db987998cdceb19be8b3dd513f173fb1c32fe8980b84440c10f19000000000000000000000000d84b562c761e5f7b0f3624584da5932eba4e674100000000000000000000000000000000000000000000003635c9adc5dea00000831c946da09e9528b78f6a560a73194d7b3814d584fe82fd8160bf1a471df77070de8086c6a063be92d5fb62d36db21b246ae2f474a82d3f035f7adb7541b70ef70b3431030f