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 0xf366da5d6925fbf1719e09cc8a757221f3658369f8e8fe085d46d1e514b8dd1b. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e33d63e6-ebfc-4693-a92b-c23077c08766.json and https://artists.proofprofile.net/proofs/artist/e33d63e6-ebfc-4693-a92b-c23077c08766.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).