Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8243
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
649ms
Block → Canton commit
649ms
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.
0x02f879830e4a2582171e851d67c309e6851d67c309ee8252089425f4b694dbf247bda9157d7382abc7e2ed8b2c53880de0b6b3a764000080c001a0ae79b3e2b5a2e6400ac4eaae38739113e566c76640663bc468f04a4fb84d708ea0098488460f0b2d8a1adf8e7d62e66042ff5f65d2f91bd44a91239fdb72fe0fbe