Katt is a village in Shaheed Bhagat Singh Nagar district of Punjab State, India. It is located away from postal head office Banga, from Nawanshahr, from district headquarter Shaheed Bhagat Singh Na
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5b77ec3b271362efcbf26d7f9cf3363c281af7e35d57cb75154120eeddfd10. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4ade8405-6d49-45ce-95f9-3fcc1c2d599d.json and https://artists.proofprofile.net/proofs/artist/4ade8405-6d49-45ce-95f9-3fcc1c2d599d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).