John Bunch (December 1, 1921 – March 30, 2010) was an American jazz pianist. Early life Born and raised in Tipton, Indiana, a small farming community, Bunch studied piano with George Johnson, a Hoosi
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 0x91901938fa79c949e605acca1857c6104be056464a4c7b9b9d96772173189828. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e31b2c19-bc9d-4793-8ff0-7660dc09c17f.json and https://artists.proofprofile.net/proofs/artist/e31b2c19-bc9d-4793-8ff0-7660dc09c17f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tony's Tunes - The John Bunch Trio With Bucky Pizzarelli And Jay Leonhart
A Special Alliance - With Dave Green And Steve Brown
John Bunch at the Nola Penthouse Salutes Jimmy Van Heusen