Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #38657
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
407ms
Block → Canton commit
407ms
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.
0xf871821515858bb2c9700882520894686fd788307a22b3ebd82e2e3f60daf46fcd5e1c88016345785d8a000080831c946ea0fb99caa4a24f16a69567625623473c8a128f98c7f194f0af5e5cf0f6fd85efd0a07dc83a369bf4e979965d74331b3b46017c72ced226936b79fd9535d0bb9d5c29