Nirban (also spelled, Nirvan, Nirwan) are a gotra of Agniwanshi Rajput caste. Some of the villages of Nirvan are in Phauladpur Neemrana Mazarpur, Quni Daultabad near Pataudi, Ahirwal Pataudi, Guliar
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 0xdad6b2a1c5de550936f1c08c59ceabccfa73438b227d064285b373c8f51eb94e. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/036c35d7-02ff-4b34-9a1d-b29f6952c49e.json and https://artists.proofprofile.net/proofs/artist/036c35d7-02ff-4b34-9a1d-b29f6952c49e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).