Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #189554
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
957ms
Block → Canton commit
957ms
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.
0xf8ac18856b1d3035548259a2940db987998cdceb19be8b3dd513f173fb1c32fe8980b84440c10f190000000000000000000000006be74e0ee9e8bac3b4ceb157b4fe220abde4b19c00000000000000000000000000000000000000000000003635c9adc5dea00000831c946da0b8244f1dbbd852991690090551ba8670363bdf19c489f0597b4bc2e6993de871a020d052f5e02ad62bf82184671cbd54e7c5f5de673fd536a21be9931849d3998d