Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #2409
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
299ms
Block → Canton commit
299ms
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.
0x02f879830e4a258205a485188122883f851881228847825208945faf536bfeceadbdc386638efce845ae60aa1ca2880de0b6b3a764000080c001a06b627b6b2485795dc77d63ed7b9e3eb93e48082565fafe2c82dce2bead3ae90aa03528d922635da8bdd5942e8f38df8b7b9b48ea9cfef1e4b87282b939cc48fb5f