Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #19478
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
689ms
Block → Canton commit
689ms
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.
0xf8ac80858bb2c970088259a294a0809c6182efe54bed9243c93944d1041615b8f280b84440c10f1900000000000000000000000087a9f2720aee9250be15cb6d6e510e4baa7ad00300000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0aed2324ca81cdccff17f723796ac2703d5fb50fa98230109c7c54d60ae010440a07abd02ef0f958702d0d530a4f81ff0b5ee214993c77ebb6d26a1da8e22e65ca9