Ratnakumar is a 1949 Indian Tamil-language film starring P. U. Chinnappa and P. Bhanumathi. M. G. Ramachandran did a supporting role. The film was released on 15 December 1949. Plot Despite his pov
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 0x1d34efdb97462f0ebd036135747e5837338163dd6ed34915677436cbb5a4e338. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/243e1e39-460b-453b-af7f-f800968adbf6.json and https://artists.proofprofile.net/proofs/artist/243e1e39-460b-453b-af7f-f800968adbf6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).