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 0x2cd39738b4ca4548266a54bdf0fb00feec7d57141d28891c00de257fafe35525. Chain 2 (Bitcoin): anchored in block 953707 (2026-06-14T23:22:21Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c225c42-9fdb-4184-a9d6-a10da652f997.json and https://artists.proofprofile.net/proofs/artist/7c225c42-9fdb-4184-a9d6-a10da652f997.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wintersong (Feat. Tony Cox) (Radio Edit)