Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #150522
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
494ms
Block → Canton commit
494ms
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.
0x02f8b3830e4a2507843b9aca0e843b9aca0e830166819438fcf16474858f5c20fc7761e01c874bcde028ef80b84440c10f1900000000000000000000000017a94c3e515d70b62d72cb127f984d5e953c17890000000000000000000000000000000000000000000000000000000017a94c3ec080a0fb1233cb4f02dd037949010ad4507c3735d6d0b72ff5a30e60634abf218ee78ca03121ad30a9953bc6b867ab343acbe70c5fe86e3fb37a5bd4e63723e1e9055f9f