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 0xbcb7f5adf7b9b211856a1fbb70aa89b8535b5a4246b07dce91e0369bcebcb8d9. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/335c9195-8823-4200-a999-168032e29415.json and https://artists.proofprofile.net/proofs/artist/335c9195-8823-4200-a999-168032e29415.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Grim Dawn (Ashes of Malmouth Soundtrack)
Through the Lens in the Bottle (Bellet II)
Grim Dawn: Forgotten Gods (Original Soundtrack)
Signs of the Sojourner (Original Video Game Soundtrack)