Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #191990
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
377ms
Block → Canton commit
377ms
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.
0xf8ac15855942fd81c68259a2945345a589ea2a5896673ff13987bcda49d3569be780b84440c10f190000000000000000000000008eea6680f5f8f377f5b4e34f6d8786b6e96b4de800000000000000000000000000000000000000000000003635c9adc5dea00000831c946da040f3af8a59b6cd5acb4adf241dd6a5127f38b1f6d0da30e8f5f50b2fe7ef245fa01c6987b7c8622a5ae1bbec67d0e0970fb13b4e43878fe4aad8babdd7d19cabb0