Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8669
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
399ms
Block → Canton commit
399ms
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.
0x02f879830e4a25821891851ee02663fe851ee026640682520894a99d648ae3fcdee67433d9b46d7f0f6efb8cb444880de0b6b3a764000080c001a0aaaef1eb58eb2c50a66d477e28ee0e5bb009855da772a268ab65c86a741cfdcea027533e307b5a8c25bbbc1ba7e4e70331b5f74f5973ebce1d4e26011c9ed900a7