Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #15921
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
870ms
Block → Canton commit
870ms
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.
0xf8ac80850857be00138259a294d129219e03f0ad695dbb10182802b82adf9ab96c80b84440c10f190000000000000000000000008c53efc79701af08fe0b47889d497f8127de646600000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea03b41115a88552a0ef03ad2dc4b378ae830461e0fc9d880abc9f55493d4360449a018f20f741742d0cfaf094e0dc89f08550b295770cb2d6073b0d8605e5bc14334