Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #3397
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
729ms
Block → Canton commit
729ms
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.
0x02f879830e4a258208c485188122883f85188122884782520894c0dfd94eed6d7938e063d37af5bf5f930b171e7b880de0b6b3a764000080c080a00c3b753feb78081e543ee974329f2bc3f0ed184804f3ba412d56c2ed8dc4b939a049d1ee22c13d98cb0f2aeddf1069e34fba4a0d588f3c2ae4f348f590481b5c5c