Braj, also known as Vraj, Vraja, Brij or Brijbhumi, is a region in India on both sides of the Yamuna river with its centre at Mathura-Vrindavan in Uttar Pradesh state encompassing the area which also
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 0xcc555934c4a30169407faab21053720d814abc62c18e517fbb016a6e74194f77. Chain 2 (Bitcoin): anchored in block 954008 (2026-06-16T21:31:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/339a74ea-9445-4f38-8285-1a4fd08506ad.json and https://artists.proofprofile.net/proofs/artist/339a74ea-9445-4f38-8285-1a4fd08506ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).