Karna (Sanskrit: कर्णः, IAST: Karṇa), also known as Vasusena, Anga-Raja, Sutaputra and Radheya, is one of the major characters in the Hindu epic Mahābhārata. He is the spiritual son of Surya (the sola
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 0xbbaaef15b3ac5699f4df8ec04e53872c13af0a0b756f635cb2ce94b71f8c4eb0. Chain 2 (Bitcoin): anchored in block 953854 (2026-06-15T23:16:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/027fafe6-3371-4f6e-8098-212fa5e3cfb9.json and https://artists.proofprofile.net/proofs/artist/027fafe6-3371-4f6e-8098-212fa5e3cfb9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).