Chahat (Desire) is a 1971 Hindi-language romance film, produced by G. M. Roshan under the New Film Corporation banner and directed by Moni Bhattacharjee. It stars Biswajeet, Mala Sinha, Jeetendra, Mum
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 0xad640531b1fe3be460c6f7c6f79e0147b28e6aa76e096790087f91eb04c1e300. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5e7360d-af2d-4304-8739-59024f783591.json and https://artists.proofprofile.net/proofs/artist/c5e7360d-af2d-4304-8739-59024f783591.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).