Robert Alexander Rosen (born December 27, 1993), known professionally as Robbie Rosen, is an American EDM vocalist and former American Idol contestant who rose to prominence as one of the Top 16 final
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 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 0xcb85be35389aeb99312a78003d8da8eff4b4da358dc944d85cfd6e5190411a03. 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/9343cd3e-0f26-418c-81ca-595509da2eac.json and https://artists.proofprofile.net/proofs/artist/9343cd3e-0f26-418c-81ca-595509da2eac.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 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 0xdfc1aa92b75c1d7fe7daafe4539c6d19ebd3fe33c314ffee7db1f54f0243e0f7. 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/GBKPL2152389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c47e60c540f5b17513f63f755c141700b23e12e202e99dca3773dc69fb6887. 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/DEPI82320390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18bdca0d6b3a01a3378ee8a4ec3f5b81aa96670bd140d29c1e22266e0121e21. 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/QZU4P2300059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae7ce8cd51363e29478c20cfe78b9a254eee2b18b38a3252628c94a005eb725. 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/US38Y2309212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb154dd6d315c814a24928ec414dbe59af667cc4188bfb92c5b9997611aedeec8. 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/NL8RL2333345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50db03ceec5c28ec7a8a9911d38c2504ff5658f75f7e8b16e2edbcc5dc255cf. 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/NLUW22302243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e1fa97ff68e4f9092894c6de2e2e58672c8cb3a3f7c82a901da4c3577032bf. 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/CAQOI2305598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fdbbcdd83f2ccf50a1fa6b1de6f21129c374f176a851a1dc275e87bfb79916. 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/CH7812362404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f0e2d2e15b1af32f32a320e17198a1328045b4c0a2818629dc2cf6f36e3e11. 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/TCAHL2357512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed827e44a340262e76570327450e28419dae4c0df8ec0cf8891397eea30cece4. 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/NLYK92300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d13d3e585bdb3f8b9a6c5fe45eeac59afa37f0575cb7b7be3bc3e9c03c9a05. 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/TCAHL2333333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe111e05fa6c17664399cea75bacfa8ae957752404b680f2fe7794d3a38845483. 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/NLYK92300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21406cb5c6fa903a5e95b5929014be9b46e8cae4315fa10be1c155271981e9d. 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/BEB682300488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaef89fa27f7c91df344cf780dc17dd50c2e075d25ddbf3a647758723cc4f05b. 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/QZWDD2339887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01ac8a9f772d720111c6ca18f9272f40f344880070480a2aa3830e5fb33006c. 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/NLT2H2300642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f66f1c44c420147c7e51104ab28704bc40619cd41147515c44fb853f319c12. 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/QMBZ92364197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08fcbb7b1ff52f5898b9a01624eeb5e39b029555b5b48c11f76ebab66974edd0. 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/TCAHC2323169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c116f36360b22299cb6676ba538ea72572698cea143f52b07670e181b92138. 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/CH7812355031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3351ba17c8e6f3a272e9418f6815a3c875e08253b2d557febd6910a87f4fbf60. 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/QZK6P2312271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2670d97a63203b15c5b0d69869dda5f4cb0e5cc780620f52f30387701a62b78a. 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/NLT2H2300381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f08adb765feaf4997a753ea51372334cdda5da0467dea5b9b8cd36e7a40a28. 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/NLYK92300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f7a59b7bc36c577b126d41f1fa4e55085d38f5c8b376b8ca4553dfc7c39df2. 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/QM6MZ2214383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c40588d749e3834fe941fe2721d84879629ff91502f36185b96a663b7e0ba9. 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/NLT2H2200186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4192d37f1ede6b3d8cd2892d90451d79bb04de9befe196def7ed79b1cec493. 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/CAQOI2200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5065f5f75bb0c32bc265aa678a1dfd21382a67c1259b78e807339dc34b720929. 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/QZNFJ2208936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35720e0cf2322f93bb89aa7701a20709353343758e7336d8e586a78c38652fd8. 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/QZNFJ2203424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211bba09877880f5e789286ba4962741acef59b36032462b2941a4c57cd22e35. 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/QZMHM2087273.