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 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 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.
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 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.