Receipt ledger

Data flow

Signed receipts feed metering, which applies the rate card to verified work. The resulting USDG earning events link an owner, node and job to the cumulative entitlement used for claims.

Design boundary

Receipts evidence work execution and metering; they do not prove that an AI output was correct. The ledger is a component of the specification, not a live balance on this preview.

How it fits

A verified receipt enters metering. The epoch builder gathers cumulative earnings and publishes the hourly Merkle root.

Lifecycle

The same cumulative claimed balance prevents consuming one entitlement again through a different route.