Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #12221
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
479ms
Block → Canton commit
479ms
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.
0xf86e2e8585e0abb6088252089470a2c4c2f19e6ee503f3ddb85cee1bdafe948d23872aa1efb94e000080831c946da0e269586371d4a9f231ba0acfa30585789730516bc228a461c7bc5437776a8867a00f8e252f886f3e359f69c7e1f5cc58e5d57d39b4b78baad0d8a91fe3f61bd30b