Jim Couza (April 27, 1945 – August 2, 2009) was an American hammered dulcimer player. He was born in New Bedford, Massachusetts, United States, Couza was one of the early musicians at Tryworks Coffe
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 0x3ffee10da40f45cae36850e8d855b3cb13a785a66392437d87a78b279ca8b53b. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3e33b0d-e877-4cab-8cbc-6e217a2f1463.json and https://artists.proofprofile.net/proofs/artist/f3e33b0d-e877-4cab-8cbc-6e217a2f1463.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).