Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #189958
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
498ms
Block → Canton commit
498ms
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.
0xf8ac15858bb2c970088259a29451be323af717fdc9555254a39fe99a0cbce167ed80b84440c10f19000000000000000000000000e39233c61d9c0162d491e531a61ef06c7954940400000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea04e6e7e3bdc4f85ecb373368edc9eec47aa4350729be809861527c271e0f6a4cea01d274f3cc859404f856b90d2af9acbbc284d4c75967957d72c60bc0297af1c5a