Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8343
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
449ms
Block → Canton commit
449ms
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.
0x02f879830e4a25821775851d67c309e6851d67c309ee825208948f2baae2cecb0d70b7e3a9d8f88c2657229a2322880de0b6b3a764000080c001a030bd1a99f8eb38e9c9471b87ce9144fa11f7dc904399d21177dc8de4d4df1900a0611385af2b682bc637d668beaa325ce1501ff87a7e584739df09d40f2265fc2a