__NOTOC__ Rajagopal or Raja Gopal is a common name in India. Notable persons with that name include: Given name Rajagopal (professor and researcher), Indian business and marketing expert Raja Gopal O
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 0xb86c0ce9f4e23ea4e28cc8d2ec8445b038530e2be1f4f500c1d4d35cde34f4db. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d2e0f01e-4ebf-4c25-9ba9-d6454fb3cb58.json and https://artists.proofprofile.net/proofs/artist/d2e0f01e-4ebf-4c25-9ba9-d6454fb3cb58.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).