Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #339
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
209ms
Block → Canton commit
209ms
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.
0x02f875830e4a253c84821c05cf84821c05d782520894574f2d47a7f74de9f6ad35a5bac16610341ed1b7880de0b6b3a764000080c001a0534b6bdcbb9ff9eaecbaa505d8ef4e8cdf43fe45067bfdb09c92cbc273cad6dba061d9810487e305ee45f29ad858ceee9fbffb25f00038717693e187940b75cc34