Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #4458
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
700ms
Block → Canton commit
700ms
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.
0x02f879830e4a25820c0a85188122883f85188122884782520894d6c37754ff15fc9829215f1428499a8c32e7f450880de0b6b3a764000080c001a0cdbb6a528428dee81e3772d6ca1f62986e5f5637c5c82ad6d0a9387dfcae6e6ba05b84f0f384ea992d1384c4ff8dfec61fac701278358a9a514dfe9c2cbb254565