Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #199838
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
977ms
Block → Canton commit
977ms
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.
0x02f874830e4a250a843b9aca0e843b9aca0e8252089458280b2f604fd9613cae63192d02f91259c90477870125c44c43300080c001a05e2080cb26bbcfbbdb56d6ea31545fa509e069a7fc7bcb1d64050bf4b5a49cf9a00ac2245be184022e5e459fc05fd233ac5f6f7970826cd7f77c6ae49aed04fc54