@atcn/core

The obligation engine of ATCN. An obligation is a piece of paid work with agreed terms: for example "fix this bug for USD 100, accepted if the tests pass". This package:

• turns the results of evidence checks into a decision under the agreed policy (the reference policies are in REFERENCE_POLICIES);
• posts a balanced journal: the provider's amount and the platform fee;
• exports a closure package, the signed record of the obligation, and verifies it offline with verifyClosurePackage;
• builds and verifies clearing verdicts: the decision in effect, signed for a payment rail to read. The rail decides whether to pay; ATCN moves no money.

npm install @atcn/core

import { verifyClosurePackage, verifyClearingVerdict } from "@atcn/core";

const report = verifyClosurePackage(closurePackage, { trustedKeys });
console.log(report.valid, report.checks);

const verdictReport = verifyClearingVerdict(verdict, { trustedKeys, closurePackage });
console.log(verdictReport.valid);

The verifier replays the policy decision for every automated decision, so a package whose decision doesn't follow from its evidence fails. See examples/local-runner/src/network.ts for the full flow: evaluation, clearing and simulated settlement.

Part of ATCN. Apache-2.0.