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 0x34c97d7826839cf0461eeca0d28d6f1e1a8ba94e66a4efbc6b6bb94339b4599b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/060e7aba-374c-456c-9ad6-adb1a3f420ae.json and https://artists.proofprofile.net/proofs/artist/060e7aba-374c-456c-9ad6-adb1a3f420ae.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 0x3232534c0c337438fcee2fd3c1cf16f04baba8c5a1a065f39dcda93f4afa20cb. 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/TCADR1863142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4779c489346c7891642044cb821ecd40e57edcf61c919bbe05d4c63653866f77. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USUYG1165236.
Scene (feat. Flyboy Tarantino & Kin$oul)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b05c89988f616020401ed94aec87b4fec142315ff6ab94add7c6a4dbb9ac09. 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/USUYG1165232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4950be9a2ec01a13f5a80cde0fa4bf242b5d6940997f9efd3f75bd1e9f32db71. 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/USUYG1196376.
Late But I'm Here (feat. Flyboy Tarantino & Skott Summ3r2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e97b30927b725db2ddbc08130cd266dc910ab6fdf2d9f3c9fd050fd04a5ffa4. 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/USUYG1367889.
XXXTENTACION Presents: Members Only, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba4cb501b078544f9c0baebba213a553d06722218a4c9134fe0adfb91ac1ab5. 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/USUYG1151246.
XXXTENTACION Presents: Members Only, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893727e60391be8b92366eb5971cded8621e57e78eb6604198eb720c15ac70f7. 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/USUYG1237275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b26c2e295c15136f11c8a98f260f3689923d428b42e9b0a0a8ee00323044f4. 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/USUYG1237285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4aeee01e3ce083ca20e49514f7a9d53dbbc61a4036b40f89aac72e5ef52d656. 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/USUYG1237294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701ce80be877e5606c5ea0f4555fedb5d960f8cfc2d5f6ef1a402baabf797062. 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/USUYG1237295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bc8d2213ec247127b2ee07f2b4c20c00440743206733a7f54ea8e4ead26bb3. 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/USUYG1237326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3afbe1b2073508267999cbe177fc17f78c211f0bc1e5389f15edbeac42286d90. 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/USUYG1237332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07b3322e0228856e54de188e3c8cc09a3bd25df3114a7fa4562f6a426f39f41. 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/USUYG1237333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2b13e197ab1e84be53ef41936449223495f778402459554e35a6acca23ad50. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:20:34Z), 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/USUYG1165240.
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 0x524898f47d16cf4e1f654b1ec0ed9864af8958f7d781df52a61012c3854fca23. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USUYG1187356.
Nine (feat. Flyboy Tarantino & Bass Santana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103880f9030699387e4f5af4f5d884b78c22c8f9a7b6d180bd2a3df946930195. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/USUYG1187351.