Adolph Sylvester "Bud" Herseth (July 25, 1921 – April 13, 2013) was principal trumpet in the Chicago Symphony Orchestra from 1948 until 2001, and served as principal trumpet emeritus from 2001 until h
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 0x4a7efbc410540086070850bfb3d40e3a37e29019e6e1cdbcbccb8fa7edfe691c. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16043621-8e9c-401a-abb7-8bff9e5996d9.json and https://artists.proofprofile.net/proofs/artist/16043621-8e9c-401a-abb7-8bff9e5996d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).