Black Uhuru is a Jamaican reggae group formed in 1972, initially as Uhuru (Swahili for 'freedom'). The group has undergone several line-up changes over the years, with Derrick "Duckie" Simpson as the
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 0xd995a1ea95bfcf80a910e5eab8cdd6691966bc63cc4a94040f5498e3dd0cc07f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd89b8df-dfcd-4ca6-8e68-c9d42037d5d6.json and https://artists.proofprofile.net/proofs/artist/fd89b8df-dfcd-4ca6-8e68-c9d42037d5d6.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 0x2db879b39f65595cb6a803e98224be240094139b942123167d54425f1cc3c57d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR5U18000564.
Black Sounds Of Freedom (Extended Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0d62b5d7729ffb3eebad903a5a0242c76da341288aeddea66f264d498eaded. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBBZV8104727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcdb364901eda5fb9b108a857c1cafb746686e0d057e7d308b5b4d916b01f12. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBBZV8110535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092136a51b28d5d4b7113dd389cf815bd1da8f047074843fa16bef87475bb569. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBBZV8120215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3e452ca90928306a9f6a34db6d19516e96c562974aeb69f306e871b3250a7e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBBZV7752176.
Black Uhuru (Live at Rockpalast, Essen 1981)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa3ca21107189f8d08b03af94b97c1ea016ad766c11d6012a5822dd66afa5ec. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USQY50825721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d34f8f31cbd9dfcb9c841304500729442922a7bafba57896b98709358a43e02. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USAT20108726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3885d1b61f891652eeb1fba91da718cdaf1e56e38ca028fa247efa7b8b5d525a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USAT20108728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2783f057f83261ff7ffc50c07484a27c4b3c5401777368d213b7ccc9cd2fae. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAJE8700079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b95eb847e880465c9ca39b9d9c1ac921a4715d7c22139f14506bf1558b8e6a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAJE8600183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc60d03d5789e52d00945e508d44e09efaf33ef3f43097d37d56d2e12a95219. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBAJE8600184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59682af63940461175181b1cd5831fdef7d39559fad13ead1dadb8bca90fd84. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBAJE8600162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f379a110c5c8eb0b1e2639c0239c90adefe2e51693aed08795a4ff97fd31fe. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAJE8600190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7953ca58d070a85f06a689f8b6ebfb70995a2a33a6c7959b7aa1486a6e21f97e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAJE8600185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f2257f49d66d53daaa6db71c5a0d491d2215519028e5cf9f521839dac12ed2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USIR28300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c47b6894b5e2486bdb7707830d1f76299d990e272fdf46e116a54147032e7b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USIR20300421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984a5f329d6388119c2c164760305d1187619fc09fcc20fe7558b3a441eb3a1a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USIR28200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ddf5b3248fa25f5ff8b895d3ecd4cdced3a08be5ac962a5b2d1172eb33e777c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USIR28200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bee8560c85fed43463039e66cf1c695380b3668c5b29674c5a024b9aee0a9f4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USIR18190014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217704b650feb9ff017b5e44d19dfc552bd5a90524cfdb67f9e5bf7d76bed150. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USWWW0124669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cf477117d9a0704d4fdb3a6799b038b580a862373a80993cfdaeb31d4da947. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USIR18190013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf810fd1ef8945ca85e9d64bb8542bb36f8cc778211a6ce76182153c3bb8ad2c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USIR18190015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4464f6c2f6da283326b6ab49be1d2b545f69abd0530d99908ef39af76974ca. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USIR28100353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1a921085b8a5d26792777646283388c7b5a29879243583c38c618af25884f2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USIR28000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe046a8bf6d9edf96388d299fe430f5b8004d5cfe4ae037f5a38b1f2435d7627d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USIR20300411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f19bf123bb3cd750ca9a0afda80211417068012f7b9bbeb006163f0d165e19a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USIR28000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104551571a8a80261a4913397fdc23ea18805727ac73c7d0e74e129c096bd1a1. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USIR28000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed3915c4bbbbf049a436f5a2a06b1e9a900343792c3dcc4340cdd4c262552e6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USIR28000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ed9958fb92e7dc48a3e4a622362eb4131ec9aeecda1b56002d99ba9e9d2084. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USIR18090005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b3e5aec837f9167e9116fe4cd834be075a9c055dc6df6bbbd3be0c83bd0a6f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUMG0000111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cb30c25bc39dca0aeee50e70fcbc3b59e474e3d54081747ea05db862485941. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USIR28000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31446eebff14b60e48c9977daace9147ce0d7ad87c422da01bb154649dedd629. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USIR18090003.
I Love King Selassie / I Love King Selassie Dub (feat. Chronixx)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc93926882f2cdccf795eab75a17344474da92e9292fc86f7ef491059a868043. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USQY51403183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea649766bb86916bc85dbafda0a546ef618227947696e523ed0b590ab75c73e2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLFP2556855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65965274f5adf551f8cb9cdd0a26da7a60f5c30c587e58596c2cce08c9486901. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBLFP2556856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c36babb274e7a8d8023cd8867d6c21c03f66ce03426ffe577b61fdfa9f47d4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBLFP2556857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6076ec1b7b2409e1eed33b1ccfef8c174ece31c103727a5b0648622733a51feb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBLFP2556858.