Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #191638
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
337ms
Block → Canton commit
337ms
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.
0xf8ac12858bb2c970088259a294e0a45ef66d2db5e766eba1f70e21a4bf1f901b8780b84440c10f190000000000000000000000007d8f139d3abd8b0e608ddc711672cdbe9742c96e00000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea047186de7a41d4bea1c773b35d863f085816963bdfb3bd2cface077c9a4fbbceba012078d2fc15592be8e91f4d19249e608b744534c7a7c8df49988bc02af01d4fa