Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8991
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
219ms
Block → Canton commit
219ms
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.
0x02f879830e4a258219ac851ee02663fe851ee0266406825208947db6f270fccf70bbfb83e627a1c1c7deeb19a8fe880de0b6b3a764000080c080a010c9a6acd8deacfbb7101d2bb5b3cfaa21ff8a86c7d785ed996f2738f920fb9ea02273dbd4e78450be684bea169ac5af442dcdd9f3b6e7156dd099ac41b0a9ece2