Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #21440
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
309ms
Block → Canton commit
309ms
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.
0xf8ac80858bb2c970088259a2940db987998cdceb19be8b3dd513f173fb1c32fe8980b84440c10f190000000000000000000000006e8ae95280c76b95dbfc645ef85e87ff1430af6600000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0ea67ac9f654777b0cdf9a3c15ff3e962c8009742f79eb81695635719e540bf1da0403a3b2d7f1b81cb0ccad9b820456ff88c3ec1d43610bda29e5a6f8d78dfb5b1