Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #21400
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
489ms
Block → Canton commit
489ms
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.
0xf8ac80858bb2c970088259a29451be323af717fdc9555254a39fe99a0cbce167ed80b84440c10f190000000000000000000000009ba9fe89d871a758cde6074448ae8c42ac70cd6000000000000000000000000000000000000000000000003635c9adc5dea00000831c946da08578643c3b23f26b9e3c1ca6c2702c653a089a19df024820f9566a5d818f3a84a034affa60347bf85c233b26a4352e9d9a2e530ec3d9f049f8fba0cfeba6791965