Doris Duke (November 22, 1912 – October 28, 1993) was an American billionaire tobacco heiress, philanthropist, and socialite. She was often called "the richest girl in the world". Her great wealth, lu
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 0x4a26597154862b7c275c4577486332afb18c67b6a00b9fab7339a82a99808097. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5591369-ade7-42d4-b9b2-3e1f8044bb31.json and https://artists.proofprofile.net/proofs/artist/f5591369-ade7-42d4-b9b2-3e1f8044bb31.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ghost Of Myself (Slowed + Sped up + Reverb)
Woman of the Ghetto (Original Mix) / Free (Extended 12" Remix)
Swamp Dogg Presents Doris Duke & Patti Labelle and the Bluebelles
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 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 0x0dd0b61360abc468d878563a3159d425811ffbf8792812fb16a84048d12beaf3. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/USLN70810611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23398e429155dacf80594596659e1b1b44b510c88a555528772eeda757cb149. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USLN70810615.
Doris Does It - [The Dave Cash Collection]
A Legend in Her Own Time (Digitally Remastered)
Woman of the Ghetto - Original Uk 12" Mix
Sam Records: The Sound of New York City 1975-1983
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc26fd61f60de842b06ce4df1a0ec2c20b3442b9b4ccc1362b93c56a5e540d0. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USNRS1332186.