Dilip Kumar Bose (28 May 1921 – 30 December 1996) was an Indian professional tennis player. He was a winner of the Asian Championships and a member of the India Davis Cup team. After retirement, he se
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 0x5e94f017e4ab05a5f164594a5561a0146bd8286878753f66932eb6f5e842be44. Chain 2 (Bitcoin): anchored in block 953915 (2026-06-16T08:36:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/197c962b-2a95-4b5f-a386-1fc828cba333.json and https://artists.proofprofile.net/proofs/artist/197c962b-2a95-4b5f-a386-1fc828cba333.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).