Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8548
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
510ms
Block → Canton commit
510ms
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.
0x02f879830e4a2582182d851d67c309e6851d67c309ee8252089406097f9399474aa643ca17bb4316e99f825e39cb880de0b6b3a764000080c001a029332da00539ad8c0324d2cae8deb08e0107d469c8fce0d14fb18c539bc054e3a07ee8af5bd9d9fde1408d982a38b58f2be05de37dd47ff09e113d003d0cd7bad3