Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #6255
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
419ms
Block → Canton commit
419ms
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.
0x02f879830e4a258210dd85188122883f85188122884782520894a815a447de671ca32cc62b3c2eee46f2a914e968880de0b6b3a764000080c080a0e9cc7a56cb8060e79c6f0d034e3baed416a9416f855a7d5afa73f15a7800190fa03bfbaf7eed9ca9815dc567cf7cb08ffdc6bfafc482c7c285c2cf3ead880cb9c2