1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb368d949d471987bd98927df63849ecc014163d9c9fe042ff318071bafb58a3b. Chain 2 (Bitcoin): anchored in block 954502 (2026-06-20T05:07:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c61b0f7-3245-4114-8b29-30b6ce64cb96.json and https://artists.proofprofile.net/proofs/artist/9c61b0f7-3245-4114-8b29-30b6ce64cb96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sanam (Original Motion Picture Soundtrack)
Sawaal (Original Motion Picture Soundtrack)
Mera Salam (Original Motion Picture Soundtrack)
Albela (Original Motion Picture Soundtrack)
Azeem Kom Ki Azeem Beti (Original Motion Picture Soundtrack)