Booher is a surname. Notable people with the surname include: Charles F. Booher, (1848–1921), U.S. Representative from Missouri Charles T. Booher (1959–2005), American engineer Darwin L. Booher
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 0x35b02c74953c1a30765e528457262c00d6c5e150c75ae93d93711d8a03446cb6. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d4ff34b-8aa7-4cc5-8eb3-827bdd917031.json and https://artists.proofprofile.net/proofs/artist/7d4ff34b-8aa7-4cc5-8eb3-827bdd917031.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).