Robert Hearth Kenneth Kraft (born June 5, 1941) is an American billionaire businessman. He is the chairman and chief executive officer (CEO) of the Kraft Group, a diversified holding company with asse
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 0xf98bb3695f4ce546de607f16aac9128f7d88d58b86178e92040067980542b4f8. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48012087-13b0-45da-a1af-f0cc61606d2f.json and https://artists.proofprofile.net/proofs/artist/48012087-13b0-45da-a1af-f0cc61606d2f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).