Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #9899
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
459ms
Block → Canton commit
459ms
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.
0x02f879830e4a25821c1085746a52880085746a52880882520894cbdcfddd851465eb325fe61d715c71a554b30a7f880de0b6b3a764000080c001a0f927330eb53a65a7184fa6991d83ca63f00bdf91c9bfc5e267ecaf4ac46aef0aa042cd167e5a87c2cc0abd4c378a3a401f87b97bf93c673a0db0d738920f8f6c11