Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #178449
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
745ms
Block → Canton commit
745ms
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.
0xf8ac0b8508e921c0ac8259a294b492fe8d264c824de4aa16cbc58b444a0994ca1b80b84440c10f19000000000000000000000000ab71304b63e2f1f9fed4b71b5f78adb3e4224ae300000000000000000000000000000000000000000000003635c9adc5dea00000831c946da0e80b147574e7551a765a360db2fdf38e97238efefc1cb57013623dacd04edb0ea0194bc2fcf7a1493d6c5aa7689dbefa100c8d91f2ba8b0d28a0b0c971be4abef6