Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #139821
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
394ms
Block → Canton commit
394ms
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.
0xf8ae8254db8405f5e1008301d4c0940af70fb293003422fb174e4ad03787337903128b80b844a9059cbb000000000000000000000000da35caf59ab5ec0b54016e2b4f1195aef172739600000000000000000000000000000000000000000000000340aad21b3b700000831c946da0f8ba74044ba8985fde4bff1a4c1811201519cb05f684ceca7d4f8432347f2d6ca062c423bcc99a0c8c7d2d3992647e8349974a903d528e5b49e7922e7df497d93d