Shanka is a 1993 Indian Bengali action film directed by Salilmoy Ghosh starring Chiranjeet, Robi Ghosh, Subhendu Chatterjee and Rajeshwari. Chiranjeet essayed an honest cop who tries to rescue his wif
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 0x0dce246a0991012ddb9b7cbe53d4807a7dfdb0b760ffa441fb67799193b97f2f. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a16afb7-04ff-4138-b4de-aa467acd84ff.json and https://artists.proofprofile.net/proofs/artist/8a16afb7-04ff-4138-b4de-aa467acd84ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).