Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #12803
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
199ms
Block → Canton commit
199ms
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.
0x02f879830e4a2582242185746a52880085746a52880882520894f0c14ecb180014f84223c11c978a2d9dd82daa48880de0b6b3a764000080c080a0e315b6ca5483bd9583e6c5654b701d9713f4fe28736afb6d054c36d234077f8ba019cc98d13b11eb1dd7b125e3b9a2b0287a82c8e1e0900447e8aea4e01b68c2b9