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 0x05d6d8a2441c44a7a75d5425ecd5a18dec603ec1e5178c48ed3ffdca46621660. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0fc33c00-b906-44ed-a95a-e63db89f0ace.json and https://artists.proofprofile.net/proofs/artist/0fc33c00-b906-44ed-a95a-e63db89f0ace.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Blacka Musik Presenterar: Bob Marley Minneskonsert 2015-2017, Vol. 2 (Live)