Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #409
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
440ms
Block → Canton commit
440ms
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.
0x02f872830e4a250184bdc754eb84bdc754f4830108e1940bdc06a6e12e9d33e2fb1b6b61be287b7e5c5b0b8084d09de08ac080a0ccbd0db9f115d800ddb7472bc348c18bd677b9e1d8a25e3cc1102a3081d9bceda010a525975399b2e9da9375ac430e18e87dd3efd420c0e57a4dd97d8fc3cccff5