Manthan, also released under the translated title The Churning, is a 1976 Hindi film directed by Shyam Benegal, inspired by the pioneering milk cooperative movement of Verghese Kurien, and written joi
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 0xc72bd9bc977bdfec1d10e3e0d3963bf6582b189e148186b806fae4978abe625a. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adef73bd-e2ad-426f-9918-d5a39cc27676.json and https://artists.proofprofile.net/proofs/artist/adef73bd-e2ad-426f-9918-d5a39cc27676.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).