Robert Avery (born 1983), known professionally as DJ Holiday is a German-born American hip hop record producer and disc jockey. He was a frequent collaborator with Gucci Mane in the late 2000s. He lat
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 0x52af250400c44e00526b9681d59d240435b909cab918352fbc5c41ee26d90d9e. 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/71ea999e-f18e-43ef-9d18-2af1d75da0d2.json and https://artists.proofprofile.net/proofs/artist/71ea999e-f18e-43ef-9d18-2af1d75da0d2.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 0x4f02cd1ff451ea3850d1c225fc3460039ac49eb99e95462bea791b55d2309326. 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/USUYG1207658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51792fa9c671bd5f3ae8c13ee76c33cf9e60cd006e636acd6c5abbd905195ffc. 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/USUYG1172409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c150502d85eaceb4583493aee96c79de46744db1433111103182b090924d24. 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/USUYG1172410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963bac82d27f78416ea78f37175f7dfe158269a9067e23570b3d6e4e9ac8afa7. 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/USUYG1172411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd500da64ce4cfa5834ca597612773cbd895223190bb177679ab781f4aaba6c09. 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/USUYG1172412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940187fee2fb550d41ecb1765af2b1f12256b8a301cbdcd80f389914fb1f7f4f. 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/USUYG1172413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86bb5c1376bdcec664cc6c0905b322fa5908abaac36562152b955e85271414c2. 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/USUYG1172414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e0d207bbabc8ac6a8d559c449848bbb4b197d775e3c8bd427e7b016950e57c. 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/USUYG1172415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbad4d2e16009a1d4ed0eb955ba23a0e4b159ee1c91030998e34e1ea539d1df8. 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/USUYG1172416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bb79183de9bf8f5323a6a5a7d40122e818534f530f449278ac980536a158e6. 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/USUYG1172417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2438ad46bea6d0e2c587f83566389737e73a5602f37cc2293b6b0c54f5120117. 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/USUYG1172418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d0a7987dadcd6ea37cec88823c3fff1f55754ae08c134941f6df86612f7d06. 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/USUYG1172419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd03926b10b9c1856b5e76978b770d93fc0dff822be4375af3dc420fe2b234e. 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/USUYG1172420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4a03c8ec24808e3386a46377cc79e452b62e5b57d0a0ecbabc7ae6a1876d0a. 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/USUYG1172421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35489d248abf7d9bd492578a6eabf3cac071df971fa2509dee012a1719d9427. 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/USUYG1172422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289ae886ab7891180f648a020becc813da782aa5d34748547379ff7b54befcdd. 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/USUYG1172423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a45b2b5f941e5c7cef3ea0e7f29e27610a5cd542c38a0c0fc91d11d99088b60. 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/USUYG1080273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d39badf53992ae29183a7acffbde799a7e9dd5cf700d29bf1a802d22bfb258. 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/USUYG1080274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec00bc704d5135f32f815edcd3beb6a6f3d8323acc140d7e84b76730fce623c6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USUYG1080280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638297b6da380f75751d76a25edb6a341bfc40cad8521083bd55ca30a1973f68. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USUYG1080282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c24e0ee0410becd21e535c2629191b26bb06e8e5532c510a999863692da7d34. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USUYG1080285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76c2fba2930a6c02aa65a69aed7b23585d2eaea4bcbcbbc099ede87d41bc2b1. 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/USUYG1080286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4cb20d369c6261c7c66bf5e4d6c9081986eee20a9569a03d09fe9384c1489e7. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USUYG1080277.
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 0xf6c4aca4650b27759cd6f8acf8b8f6b05aaa92a6dcb7659c86e8c62bd056bc79. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USUYG1080278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1160cfbb25cc696e47513f50dd1f7aaacac93fc5963ba7b44750ea8527c6f6cf. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/USUYG1080289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766f8a4ecd371c0f6de16d961ef23df50db485569b595665d622b2bb40e79966. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USUYG1132417.
Flexin (feat. Meek Mill, Future, T.I. & Stuey Rock) - Single
Miley (feat. Waka Flocka & Wiz Khalifa) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fae3477c3dd32660a89d59df89da8107b09e09e69df00a9760eb79cd3457c0d. 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/USUYG1033954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe87302e2bef12f5d2b061a1934a178cd5599638e2075b4ba474547defe68e92d. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USUYG1033955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce6008c46cce3d1250f96536ed2691b722da75c2cd6f01af72eb80e24c18c6a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZK6F2368307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b9085f51cd3700097d3cc89c4c02242782ef410e313ec4295655b3281a6700. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QZK6F2368309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521e2bb6252c7cf6a6223fdff6942bb2289b74d12e5fa5c067885ec3d3a7c5bb. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZK6F2368313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0897f405d0c499f87d1dfad01303b61c85c213583761658d0e20366083cfea3. 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/USQX92402274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7f921a5aadc090d69e4b167105c62b886532cbe7b25c19b208ade3b9f0765e. 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/USUYG1508621.