Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #189487
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
397ms
Block → Canton commit
397ms
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.
0xf8ac0a852b0bf5e8a98259a2945345a589ea2a5896673ff13987bcda49d3569be780b84440c10f19000000000000000000000000b84b3720a8a668dcc9f8d168231a7421cf82e9aa00000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea06ca9e207d75555bae9fa05a4975fee71d861b01c3c107498dbdffe7f88a85590a0226535728ca8ac86ccc4f3ad7c56fc189020b7f7066f38ec8c720798f9ebcea6