Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #9451
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
409ms
Block → Canton commit
409ms
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.
0x02f877830e4a2580858b65b7ccf6858b65b7ccf682520894fc0e3c259e325410b8fc7d42c603928af7194f53880db40bc399fecc5080c001a00e7cf0ea01e305c1ce5ade34973755bd021522c20d99e656cdfb8ebf3db8f748a050d34157df0a627eeae165293aa298e10bbd96a04648a526463dd9e1b92aff8c