Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #12245
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
390ms
Block → Canton commit
390ms
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.
0x02f879830e4a2582224685746a52880085746a5288088252089473d04ab64657e9e2271fbfdc027215f0b5bbe392880de0b6b3a764000080c001a0b74b8e826581fd8894196f1d65aaed18f2d76cac7e7e3e04ea0bd08be8b975dba01ea13edb38a7c7bc1e80a9dce0025cc18ea7d5588cf1d72f592bd4715ca2bacc