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 0x2005e4f50009a286ccc3560396932c469c8a3812e3d8734857a4372f592ee5df. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7c20c4e-ba0c-436b-9b9d-f447642bd407.json and https://artists.proofprofile.net/proofs/artist/e7c20c4e-ba0c-436b-9b9d-f447642bd407.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hochzeits-Songs (Jeremias & Ruth Elpida)