Kevin Bryant Mahogany (July 30, 1958 – December 17, 2017) was an American jazz vocalist who became prominent in the 1990s. Particularly known for his scat singing, his singing style has been compared
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 0xa7b1aa843e3804f05bb9952390c8e07576c2baf53f0eadd254e1317c377e92ce. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05934df0-bad6-4d64-9dae-a455d7e650f9.json and https://artists.proofprofile.net/proofs/artist/05934df0-bad6-4d64-9dae-a455d7e650f9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Enja Heritage Collection: Songs & Moments
The Enja Heritage Collection: You Got What It Takes
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 0x264adb418f325a02f3186d77cdbd98624ada15763d8d49eec2497d2485827713. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEA599503905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebaeffb35b92ac726ff0233becf2fb899f726bafa93da343d3259dda59c82a7. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:07:42Z), 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/USWB19800563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423c82c65e9c319e4fb9e450a08775adc16b797c7ada06b149eaef0d909bf65c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:22:02Z), 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/USWB19800566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a6cfffac4136bfd85c3b42f7d74b8e0834d2aaaa2955249560e6c91ef5a321. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USWB19800568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d05ad62c0b2bd11cec4d1f58d2e57ac56825debe2955d7826a64bd6f273f482. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/USWB19800570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6272e080addacd54a1555f1121be7bf1f50c1045c7496d7411deb75dd4d577. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:29:24Z), 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/USWB19800565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f47f5392ae5f4a9e2694aa49786d21ecf187b9f3f3bc6fc7c9e2d092b032ec. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:30:06Z), 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/USWB19800561.
Mahogany, Kevin: Pussy Cat Dues (The Music of Charles Mingus
Pu**Y Cat Dues - The Music of Charles Mingus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fc6fc8c12a2ab08c8f3c181833e321e280f8ae84345853544d62d21489f208. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ATC601505201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33461e132df82991bf1d1dac81d5d9cd82908cc5a03eba59862392e614bf5821. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAIL2400125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae20e5bc26e70cee8bdd31e71b74a48ce14db269a622a583d089b817df792a55. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/USTE10343706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f6b4fb2f6a48c3a4bd6e03dd446877e6e3ae560ed357d4e3ec6f4060db63a9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/PLC591600151.
Erotic Jazz Moments (Essential Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9239b1f89df6694a272b7e1dc4d696d584330348ae40f201e945221dd26105e6. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DES291000014.
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