Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #4389
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
358ms
Block → Canton commit
358ms
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.
0x02f879830e4a25820bca85188122883f85188122884782520894e313b4c30a4fadf77911fd05bd4cebc6cd3b9ec7880de0b6b3a764000080c001a06a05e2c419d7454fc9e80237d2c1f371c6eabcb085d4cf00d4561b716f585b01a018c774c0ac9266675f9054ab8a9e2c07076b3d476859634dec924a7c91c35a46