Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #39978
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
787ms
Block → Canton commit
787ms
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.
0xf8ac80858bb2c970088259a29423e5dee888c67549a750290c1ba14a94c855229a80b84440c10f190000000000000000000000001e5eae1ef3963b0b5698eeaf0eceb48bc7e1784600000000000000000000000000000000000000000000003635c9adc5dea00000831c946da0c9f98ebc42836a9939d58c7ad70e65f1ff5ca343b902c34439361d4b1028673ba053ef8f5ffc6d237f9d31432a9237ddfeddd2ecfbb8cac179f5784ec3497f6368