Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #189870
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
647ms
Block → Canton commit
647ms
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.
0xf8ac15858bb2c970088259a2945345a589ea2a5896673ff13987bcda49d3569be780b84440c10f190000000000000000000000001544d9c6ec947a07ca8b3f206e7dc15dea5754e900000000000000000000000000000000000000000000003635c9adc5dea00000831c946da05bc93f2cc59e6ebf913fcd48e5655041eeb8823edae1bad2a6e963cf01c89b27a07aca8ac794aadaa3ed3591b8f5c012776db9389e5a17699f0031216ba3b8d006