Mehmaan () could refer to: Mehmaan khana, guest houses in India Mehmaan (film), a 1973 Indian film Sarkari Mehmaan, a 1979 Indian film See also Mehman (disambiguation)
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 0xb2fde37b8e6b1d16217009c1a435a0666f6bbbc9674af98bf897260cbe750bb9. 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/1956e937-8d99-42ef-b6a3-aef614ed6b75.json and https://artists.proofprofile.net/proofs/artist/1956e937-8d99-42ef-b6a3-aef614ed6b75.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).