Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #15255
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
319ms
Block → Canton commit
319ms
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.
0x02f8b4830e4a250285037e11d60085037e11d60082c041941dba9c1e014268a9713a861cf35249cb8183c77c80b844095ea7b3000000000000000000000000e57aea293f0e88806be9542b05e18e8efb85ee380000000000000000000000000000000000000000000000008ac7230489e80000c001a00a6076b6a6e984563c777860af5c865962748a0a825ecc42e7473d272a21c62aa013eb05e7e1b4e78ce06859e7749bb3002dc8f5e40b3b63cde354dfdf714438f7