Cornell Luther Dupree (December 19, 1942 – May 8, 2011) was an American jazz fusion and R&B guitarist. He worked at various times with Miles Davis, Aretha Franklin, Bill Withers, Donny Hathaway, King
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 0x9a09bc3caf91a5888dcca456ac24fb53a705422371cc6e573d6f6dc86b054fc0. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ba0731c-36d4-485f-bd9b-3f8c854a7d34.json and https://artists.proofprofile.net/proofs/artist/6ba0731c-36d4-485f-bd9b-3f8c854a7d34.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0040fa54f72b6a76be1609ad01d64dbb1e353e2dd57bd0232a2269562a67c19. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT20621629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbd3c8a64fad5d31fa38afcb41d3144fffcbfc97cdbd2ab8c4b0cfde5f3687b. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:56:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT20621630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df9c2ff0e994d64dd1423516b3eed882aba2128291edfe4f0a0fdd5f7829877. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT20621633.
Saturday Night Fever / Shadow Dancing (2 on 1)
Saturday Night Fever (Digitally Remastered)
Groove With Dupree - [The Dave Cash Collection]