Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #149219
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
644ms
Block → Canton commit
644ms
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.
0x02f8b3830e4a2507843b9aca0e843b9aca0e8301668194ac60fb11e71c63af4a5478fd312db485b3fa959f80b84440c10f19000000000000000000000000a095a9536f95424f5145356679b390c2610cb6e500000000000000000000000000000000000000000000000000000000a095a953c001a0c336760c9ef18ab444f4a788c09111f8afaeac8fe3010e541515e302efb6abe9a02079d014aafe4b38c4fe5b30cecd7ac1f0d5e1fefd9524dc1cdca6d44f6ef14b