Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #121221
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
396ms
Block → Canton commit
396ms
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.
0xf8ae8211028405f5e1008301d4c0940af70fb293003422fb174e4ad03787337903128b80b844a9059cbb0000000000000000000000002b31758e1f77a40ea001d9a9d7fd87415a0ca26600000000000000000000000000000000000000000000000340aad21b3b700000831c946ea0731d0811e43b96afd9d39c2b6825fe6a0021938ecd0b8837e1ce51bd886ea482a0250b629d8a89d72975d94ab2be7d81cfee5c291ebd90b662df83386198d1423c