Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #39975
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
677ms
Block → Canton commit
677ms
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.
0xf8718217da858bb2c97008825208941e5eae1ef3963b0b5698eeaf0eceb48bc7e1784688016345785d8a000080831c946da0dab1d1a1c9ff0948bf8e72098dab5c4a68d2c88b32956a86ebb7ec0d093c5956a01e4593175ee1030acb6410a3fc55846c403e26fc9d06e51625b244e0721c9689