Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #12136
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
688ms
Block → Canton commit
688ms
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.
0x02f879830e4a2582220985746a52880085746a528808825208946cdf09e4f7fb3ca9d03201d53b7b863db9b2a18d880de0b6b3a764000080c001a0c5e85242f490fa9fc4fb7b4439cf46ec0b0d6ed924145ef02c08e19c9d6a79d8a02952f14aa76229dba136bb0ed97d25c54d3124776d4443b9582d2e831658a846