Manik Khan (born 2 January 1997) is a Bangladeshi cricketer. He made his List A debut for Prime Doleshwar Sporting Club in the 2017–18 Dhaka Premier Division Cricket League on 9 February 2018. He made
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 0x1e61a4354bf3d588aa60725299f898bd993619a00dde3fb3f309f71c6e4aa56b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6bf793a8-aca3-4957-af13-3f30bb7a83a7.json and https://artists.proofprofile.net/proofs/artist/6bf793a8-aca3-4957-af13-3f30bb7a83a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).