Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #190554
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
388ms
Block → Canton commit
388ms
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.
0xf8ac15858bb2c970088259a29451be323af717fdc9555254a39fe99a0cbce167ed80b84440c10f19000000000000000000000000785ebdc37acc7164f75cf018349dd57d7b0f106200000000000000000000000000000000000000000000003635c9adc5dea00000831c946da0dff6f9518e32fbd932e966cf8ef7bbd2f4d230e09bdee63df8465c063dcf0f49a03c95828e9f9b4991410dda9fa5ff6f17645b7dc15ec0d2804e921c0c90bba830