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 0x7ad0c4904ca4eee238c7ff863a229d1454d11c5f0c05a3b95886cd45afb1f8b5. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/68cf2b04-6a1b-4fbc-aa0d-5f7043b198f3.json and https://artists.proofprofile.net/proofs/artist/68cf2b04-6a1b-4fbc-aa0d-5f7043b198f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Velika Rock Eksplozija: The Best Of The Rest 2008-2015