Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8402
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
389ms
Block → Canton commit
389ms
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.
0x02f879830e4a258217ab851d67c309e6851d67c309ee82520894cc3b2b0dad21bc40a847080abc5dd2a9fa49c5fa880de0b6b3a764000080c001a0ce0320b03bccf02af35990e86c8a75c056ac11deeadf96f30af8e89b9ee3b998a0261b2ded67090e4a8fb37f2c23b3191c1d3999ae4719761b3437afbdb275bbe9