The Deep Blue Organ Trio was an American, Chicago-based jazz organ trio, made up of jazz guitarist Bobby Broom, Hammond B3 organist Chris Foreman and drummer Greg Rockingham. In their individual care
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 0x59c879ff539ac86d75aa6230e19b35b16ed0ed6ee304f552736fe2ba004155e7. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ceb94a52-3800-420e-ac44-72ce20b9f724.json and https://artists.proofprofile.net/proofs/artist/ceb94a52-3800-420e-ac44-72ce20b9f724.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).