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 0x97cf89ac01ff89e7fdfe4e6746f00c2a8c96033dcd5f232c0bf375c60de6c493. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f6be756-af5e-4d11-ab4c-330a81d9d627.json and https://artists.proofprofile.net/proofs/artist/7f6be756-af5e-4d11-ab4c-330a81d9d627.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Global Underground: Nubreed 10 - Oliver Schories/Unmixed
Oak & Whiskey - Till Krüger's Back to '93 Mix