Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #4505
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.
0x02f879830e4a25820c2c85188122883f851881228847825208944b15a4ad24bdcc5d7be8d39884fd2534fb8fc983880de0b6b3a764000080c001a0f3bf69aed1e20a76de3c158bb49c732aca28c1fc1b2d6f597dc3e4ca3b275c6ca02f239680655eff498cd6d506832ab0394f3efeea032ac3da92fff2f8745ed0bc