John Anthony Congleton is an American record producer, engineer, mixer, writer and musician. In addition to his production work, Congleton has fronted the alternative rock band the Paper Chase, and
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 0xf5c5824906a5f93f40e36c43b19120d8ea0884275cc06166ae1b9b6f3c8ac85d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/febeb9ad-68cb-4d58-9159-b9f133e785eb.json and https://artists.proofprofile.net/proofs/artist/febeb9ad-68cb-4d58-9159-b9f133e785eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).