Mark William Neumann (born February 27, 1954) is an American businessman and politician. He represented for two terms, from 1995 to 1999. In 2010, Neumann unsuccessfully sought the Republican nominat
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 0xbaa3852f13394d847e699b944e3ac845c131219332a09c2a215fd7b4ab9969ef. Chain 2 (Bitcoin): anchored in block 953962 (2026-06-16T15:03:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2792af8a-805f-4549-ba80-b77a8c8734df.json and https://artists.proofprofile.net/proofs/artist/2792af8a-805f-4549-ba80-b77a8c8734df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).