Verify any FeedOracle evidence artifact in 30 seconds. Check hashes, signatures, and blockchain anchors.
Every API response contains a content_hash (SHA-256) and signature (ECDSA ES256K) alongside the data payload.
Our signing key is published at /.well-known/jwks.json in standard JWK format. Key ID: feedoracle-prod-2026.
Recompute SHA-256 of the data payload. If the hash matches content_hash, the data is untampered.
The hash is anchored on Polygon. Look up the transaction on PolygonScan to confirm the timestamp is immutable.
# 1. Fetch a signed report curl -s -H "X-API-Key: YOUR_KEY" \ "https://api.feedoracle.io/v1/rwa/risk/ondo-yield-assets" > report.json # 2. Get the public key curl -s "https://feedoracle.io/.well-known/jwks.json" > jwks.json # 3. Verify content hash jq -cS 'del(.evidence)' report.json | sha256sum # Compare with .evidence.payload_hash.hex # 4. Verify ECDSA signature (ES256K) # Full guide: feedoracle.io/docs.html#verification