Abdul Ahad Khan (born 25 September 1937) is a former Pakistani cricketer. A leg-spin bowler for the Pakistan Railways team, he achieved some remarkable bowling figures in domestic first-class cricke
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 0x4e94e20789741ffa098005d432b35f4db03b0d334e11d3fb5b183f610c2b23da. Chain 2 (Bitcoin): anchored in block 953610 (2026-06-14T07:58:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1340d73b-0a27-4e0b-ab5f-4b8625ef9e6f.json and https://artists.proofprofile.net/proofs/artist/1340d73b-0a27-4e0b-ab5f-4b8625ef9e6f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).