Package Exports

@uvrn/core
@uvrn/core/dist/index.js

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Readme

@uvrn/core

UVRN Delta Engine core — deterministic multi-source comparison and verification. Runs the Delta formula on bundles, produces canonical receipts with SHA-256 hashes, and validates or verifies bundles and receipts.

Install

npm install @uvrn/core

Or with pnpm:

pnpm add @uvrn/core

Usage

Define a bundle: a claim, a threshold, and at least two data specs with metrics.
Call runDeltaEngine(bundle) to get a receipt (outcome, delta, hash).
Use validateBundle and verifyReceipt for validation and integrity checks.

import { runDeltaEngine, validateBundle, verifyReceipt } from '@uvrn/core';

const bundle = {
  bundleId: 'example-001',
  claim: 'Metrics from source-a and source-b should agree within 10%.',
  thresholdPct: 0.10,
  dataSpecs: [
    {
      id: 'source-a',
      label: 'Source A',
      sourceKind: 'report',
      originDocIds: ['doc-a-1'],
      metrics: [{ key: 'count', value: 100 }],
    },
    {
      id: 'source-b',
      label: 'Source B',
      sourceKind: 'report',
      originDocIds: ['doc-b-1'],
      metrics: [{ key: 'count', value: 105 }],
    },
  ],
};

const receipt = runDeltaEngine(bundle);
console.log(receipt.outcome);   // 'consensus' | 'indeterminate'
console.log(receipt.deltaFinal); // max delta across metrics
console.log(receipt.hash);      // SHA-256 of canonical receipt

Use cases

Compare two or more data sources — Run the Delta formula on metrics (e.g. report A vs report B) and get a deterministic consensus or indeterminate outcome.
Produce verifiable receipts — Every receipt has a canonical hash; use verifyReceipt(receipt) to recompute and check integrity.
Validate before running — Use validateBundle(bundle) to check structure and threshold without executing the engine.
Integrate into pipelines — Use as a library in CI, ETL, or any service that needs deterministic comparison and proof.

@uvrn/core

Package Exports

Readme

@uvrn/core

Install

Usage

Use cases

Links