Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #191979
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
918ms
Block → Canton commit
918ms
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.
0xf8ac18854a627dec258259a2940db987998cdceb19be8b3dd513f173fb1c32fe8980b84440c10f190000000000000000000000008701fb3b63a945bec5d810652ac5092cc9ea383100000000000000000000000000000000000000000000003635c9adc5dea00000831c946da03802e9868a5c8dc38a9e09c6e92519f912d407469484c0a0dc6de0b7307d5ac8a035e870a9f27316b2ca6764df33d00fd85b472c16988b85b4b871e391a94cf86e