Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #189954
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.
0xf8ac12858bb2c970088259a29451be323af717fdc9555254a39fe99a0cbce167ed80b84440c10f19000000000000000000000000f6a4bee8cd4c40954d90c722c5bd42faaed5abd400000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0c53177825e50b6ce3d0fae8a8fa075c6f4c003d75802e6f5f1e98c7fdfcca79ca062218ebdae2236ecf7c7e63dad1465a49a3376cc3354bfa48fe05dcd45ebffea