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 0x7d4bc799acdad96c59ff1407be9aec5e07f7efe14132421a4ae01e694d76d975. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba7747b8-ec72-42b4-9755-366ce0cd9912.json and https://artists.proofprofile.net/proofs/artist/ba7747b8-ec72-42b4-9755-366ce0cd9912.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Summertime Symphony / Two Dozen and a Half
Banana Split for My Baby - Rockin' Tracks from the Good Old Summertime