Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #191978
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
688ms
Block → Canton commit
688ms
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.
0xf8ac0a854a627dec2582596f94d129219e03f0ad695dbb10182802b82adf9ab96c80b84440c10f190000000000000000000000009b855b1714fe529e391d9d7fc1485f32021170f800000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea04398c2d6234a1ae234fa86d4a4996bbd3b466164f72f45465aa0a4afa387b295a05975d44b8587a4ac8f790f2db1489791a2bd185ad14e4eb28058550940564967