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 0x5b9dfef53f26d465186326d1252d8667b5c7545926c4981074173a628e2ebf1e. Chain 2 (Bitcoin): anchored in block 953710 (2026-06-14T23:32:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e93e5b9-be26-4e12-b0c7-b5a443a87511.json and https://artists.proofprofile.net/proofs/artist/7e93e5b9-be26-4e12-b0c7-b5a443a87511.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Spiritual Songs And Dances of the Native American Indians
My Enemy, I Come After Your Good White Horse - Arikara
Fast Cheyenne War Dance - Extended Version