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 0x078aa9a114b247a5840bfe1d754b54dc6b08be23613b7d983b3311ec6e8839e7. 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/3366be95-5ba8-4954-98cc-618226689b1e.json and https://artists.proofprofile.net/proofs/artist/3366be95-5ba8-4954-98cc-618226689b1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Santuário das Baleias - Conserto para um Trombone Quebrado
Santa Luzia da Caxinha de Música de Anna
Volare (Nel blu dipinto di Blu) [Dal Vivo]