Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #178939
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
378ms
Block → Canton commit
378ms
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.
0xf8aa0383124f888286d694beede27adc78c973ff5d41a475c07cb8601074d280b84440c10f19000000000000000000000000015fccdb5e6460e493f196eb6c70ba7dff52427e00000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0b8ee6b1b006034537e29e7d02611086f007d9e58c77f882cdfe2316c4e5ab7eea05a39902203692a33df584cedce66f2ae8d598537f7b59c28d0cd997549b5a272