Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #138495
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
574ms
Block → Canton commit
574ms
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.
0x02f871830e4a258218e18502540be40085028fa6ae008252089427ab051371054dcbb4c0aee315d9507b77c049868080c001a0bf64b91f7a5c25bfba0d4c34358b24b48e60a02719abc03dc6b7e80999cf1ac0a063a6a77fd58cf7777813fb7c25a8018e2f0c76e1f9642ad28b72936b9edf3c23