Hasan Kamal (born 1 January 1943) is an Indian lyricist and songwriter. The recipient of numerous awards, including Filmfare Award for Best Lyricist in 1985 for the title song of the film Aaj Ki Aawaz
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 0x65253c0b5d117c2347c7c47f024ce8510809a7e2fbb53f7eac9c6696a96a4888. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0785de31-a396-465c-b0ab-1c3c073f3657.json and https://artists.proofprofile.net/proofs/artist/0785de31-a396-465c-b0ab-1c3c073f3657.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).