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 0x7bb88a96f02ebfd5d80570f61354ba97f87289a3360f81b4acbeb0054a30fcc9. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f6c0e0c9-28c9-4ccb-9132-2b733f734b94.json and https://artists.proofprofile.net/proofs/artist/f6c0e0c9-28c9-4ccb-9132-2b733f734b94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rumjhum Rumjhum Chale Mahamai (Chhattisgarhi Jas Geet)
Chait Mahina Ma Rache Bihav (Chhattisgarhi Jas Geet)
Gonda Phool Ke Pahire Durga Haar (Chhattisgarhi Jas Geet)
Oo Chhori Matvari Tere Nain Rasile (Hindi)