Black Hippy was an American hip hop supergroupJay Rock, Kendrick Lamar, Ab-Soul and ScHoolboy Q form quasi-supergroup Black Hippy | Pop & Hiss | Los Angeles Times. Los Angeles Times. (March 11, 2012)
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 0x6d1c7ec000f8ddc6a8830e08268d8b6750b6d213a3b59c73d23eadb03a3e523b. 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/953a11ae-d491-439a-a844-624a96a5ab0c.json and https://artists.proofprofile.net/proofs/artist/953a11ae-d491-439a-a844-624a96a5ab0c.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 0xcd50bfd86581f928a9a540bef2d6cde7afbedf27f15d948d0a1ef7b58845b78e. 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/FR5R00910643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d17a22aa83788c8c48d9618c9c3faa260503668e57e9e58b9370b68474a930. 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/FR5R00910645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bad9936e8f8240fc3c3159b95f2d88832fb9a79ba4af32b3f57d61b674c673. 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/FR5R00910646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4c9e182b553ea8d7cd8cb21e1e0e57ec838fa454284cdbde4ee168bd39a66a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR5R00910647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc204927f80fd54a7d812e6c156f188ec41788374f908c8c2b9bfdba5801ccb9a. 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/FR5R00910648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ced2226b30e3f2cfaede2f1c6317889544ec07b9b9fb78e11c5532a8ca1686. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:39:26Z), 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/FR5R00910650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef987ede1b40142d982f93b6c9a666f11085b37e6c008baef85d68d32646669. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR5R00910651.
Cypher (feat. Joey Bada$$, Travis Scott & Action Bronson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379eaa825fc8a9db271ad902d3be9ed3941c312add899de03c586be57097538c. 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/FR5R00910652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5d064c99766af76c28e6b5cc517bdd0fbd109a31af1f2c4280bcc49c4a6781. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:48:23Z), 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/FR5R00910644.
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 0xe82547b0737e6dc953e4257edac1ab89d5a0e94f20a6814955c53101c457895f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/FR5R00910649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e57e3dc3f62c7296c6be044b8e99480aca8b973102f55823c7e733a5cbd7cd0. 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/FR5R00904284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09f8451c71ce7b0ab942fffc126dd4897e999e90161c6f6f49c86ce16cafb43. 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/FR5R00904285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7e2e95704755a0505b2d51d03a17feab44086bbddddaf24cd3361a7238b08e. 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/FR5R00904286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2060ec61b78a107ea146f6d20d50ebb0c5325520bf7a09d1c7a7be51df9bb5. 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/FR5R00904287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154a1da204638cf7194c138beeea9e5bfd98bbebba0c07953a1bfc7b0b6f5dd5. 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/FR5R00904288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3806fe09f8afd876e8e82753cad60e10868fdde818b71f917c89421cfa7180. 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/FR5R00904289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be0fe1fdb26a50c809a3733fd8b9b4dd181ababbf21f23d610bd064df91437f. 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/FR5R00904290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0775ed3b23ffb5fcf34639bd62c4ffc480a157350df78e65b2d0970465a62bd2. 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/FR5R00904291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30152cdc74462737a738f598ba00eb99af80581e0acc6305bdb63ec37cde1662. 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/FR5R00904292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a903c202b3c0982fb521dc78ab08e1433ddb8b8e48d99edd79920feee52222f. 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/FR5R00904293.
Control (feat. Jay Electronica & Big Sean)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3c427d4c5e56c1ca16c52e61c6511394cbbbfd91c911a07cff7d28be0b0282. 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/FR5R00904294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119515b1282dba631ca8bcc97711cbf2ee8c5887c100413b52995b5aec2da1d2. 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/FR5R00904295.
S.R.I.P. (feat. YG, Young Jeezy & Chris Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ff23cf0f4df4edade8278ecaff51c1b07309cb464de0177b2ce7eca9c132e0. 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/FR5R00904296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987206a56bc040333f262774d4398f4ee816d369b56d0832c73045e1a1ae6ad6. 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/FR5R00904297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a13e26e1c9b0f20a1306c75457a4c63bd5e4257ee240ffd0a862688cf42c6f. 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/FR5R00903443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9133a5f677b74220456d4c63a18fcd7a35b3a18317b464caf65c46afa1cc6960. 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/FR5R00903444.
S.R.I.P. 2014 (feat. YG, Young Jeezy & Chris Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a46f4072ac82be751eb8f21b1d4fbbe7ae3f7c5ddd70009fef1d24f0ab6f24. 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/FR5R00903445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa304b8cad620a0417181b45b9a5d6f8619d393e57186d19dcf4a0fc94d77136d. 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/FR5R00903446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e14ccf87d489e90d9feba0ca5f60a3beeba0c7d62aca183332245347daa3c02. 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/FR5R00903447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea5cb7d030e989fe716d090316511e3c7b465474b2b19b4dada1991fd853eac. 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/FR5R00903449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139d85070623ec486618dbde6b59ded4acc173b642cda0d6f4145c19b0c6fbb6. 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/FR5R00903450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fd5d753a54ff9fb8717747e96e6cf2002207d2f6f81496bac8ae1549ec3b5c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR5R00903451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bb988e9023ea48d473f2cfac6736fea38ce0ab4f79fa75a7437d306b198be2. 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/FR5R00903452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66117ec74a6c8b14404cf5e7a7640840a4d85279347d1f47adccfe3cb9ced4ce. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:55:45Z), 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/FR5R00903448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d4ae47bb06b32cc94671dd706ce8808866854592b0525e739a272b497f68ac. 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/USLZJ1954932.