Willy Mitchell (born Percy Williams; 1953) is a Canadian First Nations musician. Mitchell recorded and toured mostly in the 1970s with his Desert River Band. He co-organized the 1980 Sweet Grass fes
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f5c291e0f629a840ac9b70ec058b61cd5f0d0221581a7c1c0f68cdf2284b25. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a7f4b7d-1526-47ba-b97d-21da4980918a.json and https://artists.proofprofile.net/proofs/artist/3a7f4b7d-1526-47ba-b97d-21da4980918a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).