Joseph Barry Galbraith (December 18, 1919 – January 13, 1983) was an American jazz guitarist. Galbraith moved to New York City from McDonald, Pennsylvania, in the early 1940s and found work playing w
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 0x9e3295a87cdc1993b463e8b31cf5299437a25e724ba612bb853308bd302efdd1. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0ca2a39-8304-468c-9a61-7b4e18567142.json and https://artists.proofprofile.net/proofs/artist/b0ca2a39-8304-468c-9a61-7b4e18567142.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Milestones of Jazz Legends - More Jazz Guitar, Vol. 9