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 0x28458bea7ed186d64ea09fd9957282aa07149e425a97eace98180bce8719315b. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c60ba859-5fe2-4fa0-83cd-fd4c2df8bf2b.json and https://artists.proofprofile.net/proofs/artist/c60ba859-5fe2-4fa0-83cd-fd4c2df8bf2b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
All Out of Love - Kool de Sac DT Club Mix