Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #12552
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
999ms
Block → Canton commit
999ms
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.
0x02f879830e4a2582233d85746a52880085746a52880882520894cb849d818f2bb1bd7f1a4d33f2058a7d2b9650a9880de0b6b3a764000080c001a09b58c1e44b7d77120aa4d0e2755662a3bef44ebdbe024ec85ebb6d6130f88567a0100e3809e2a8e4267aaff54e7815b1b454f82b6bc30e47f6f0259c3fafadf605