Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #199619
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
497ms
Block → Canton commit
497ms
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.
0x02f876830e4a2582047c843b9aca0e843b9aca0e82520894f855778177aacc6f70d8b43892652ec9094bd7db870cf4ed5b7ef00080c080a009ca0912d7bd2d6d57302d581b398cc64372a99373c792947b73611d1f25801ba0785f219a304525d71b0e73aee94f0f8cf481a7b609449b05c43b1f64104be663