Jack Owen (born December 6, 1967) is an American musician and guitarist of the death metal band Six Feet Under. He was one of the founding members of Cannibal Corpse. He also had a stint with Deicide
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ed5d0991120e4f83b5e9422789f024a90554366b898732d4871cb545d03b06. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5f25d86-30e3-45f4-927d-29fabf1cb50b.json and https://artists.proofprofile.net/proofs/artist/d5f25d86-30e3-45f4-927d-29fabf1cb50b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).