1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b3e3c000b6fd911860a1c6b15bf9108ba2e4d21e72d58f8e61229e5f423a0b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5fffe43-fcc3-480b-b069-f3ba3230d2a3.json and https://artists.proofprofile.net/proofs/artist/c5fffe43-fcc3-480b-b069-f3ba3230d2a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mama's Got a Girlfriend Now (Ben Harper)
Pantalons Curts i Genolls Pelats (Els Pets)
Les Aventures del Petit Princep (Electrica d´Harma)