1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x38f2c0c93ea2c5fe3e531244cd2a42db8459f3979835ebb20e36dd260d73ab56. 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/9ddfcf4c-8715-4550-ae86-aa7c68d979ea.json and https://artists.proofprofile.net/proofs/artist/9ddfcf4c-8715-4550-ae86-aa7c68d979ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xe64c743d86e74e0f0a554587885af9268db8f1fd97bc5370dc8a288bc27aea8a","isrc":"USHM21845185","name":"Nadie Quien Te Quiera","registered_at":"2026-06-04T10:08:17Z","spotify_id":"7BkgekXJ6bUv3enpOpwmnR","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64c743d86e74e0f0a554587885af9268db8f1fd97bc5370dc8a288bc27aea8a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7BkgekXJ6bUv3enpOpwmnR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7BkgekXJ6bUv3enpOpwmnR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc9edf27a3ff92f3e90b6e70cb142b3d6cc290569a8c1efd84180560907b270. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6QMbH5b8TJJ7bZGvpOVNfi.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6QMbH5b8TJJ7bZGvpOVNfi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab00405931c17cb60c8147c3270970e8cd1facd722f51e52842004026b7ab0b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6mLBGACz5rQKHmaMXzUSBk.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6mLBGACz5rQKHmaMXzUSBk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac548e16729ac1dcf9dd0f246ef9484b5dbeeda12c6459ed1c544b0f69d3708c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Fen1fN2tcyKjP3LL0oHAE.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0Fen1fN2tcyKjP3LL0oHAE.
{"copyright_id":"0xe64c743d86e74e0f0a554587885af9268db8f1fd97bc5370dc8a288bc27aea8a","isrc":"USHM21845185","name":"Nadie quien te quiera","registered_at":"2026-06-04T10:08:17Z","spotify_id":"2UcZBXT8hFnoXDlT2UKjho","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64c743d86e74e0f0a554587885af9268db8f1fd97bc5370dc8a288bc27aea8a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2UcZBXT8hFnoXDlT2UKjho.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2UcZBXT8hFnoXDlT2UKjho.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab00405931c17cb60c8147c3270970e8cd1facd722f51e52842004026b7ab0b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4YCNmzS3LrSmyEjmntgGVr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4YCNmzS3LrSmyEjmntgGVr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac548e16729ac1dcf9dd0f246ef9484b5dbeeda12c6459ed1c544b0f69d3708c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3apMSeOEP0m1XSQusU04Uj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3apMSeOEP0m1XSQusU04Uj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd45f39dc53022624bc9f5f77b0983d6bdb3207ba31512716bb80c88186ba758. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3IBNK5f1nG6JgmoIllGkET.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3IBNK5f1nG6JgmoIllGkET.
{"copyright_id":"0x14e0ebe082b183d1416f16927dcb3fe510fcbfb93d61e9bd381c44205d1acf14","isrc":"PEEC11908027","name":"Aléjate de Mi","registered_at":"2026-06-25T16:44:39Z","spotify_id":"4CleVIq5eFDqOC5ggLmzxQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e0ebe082b183d1416f16927dcb3fe510fcbfb93d61e9bd381c44205d1acf14. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4CleVIq5eFDqOC5ggLmzxQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4CleVIq5eFDqOC5ggLmzxQ.
Nadie Es Eterno en el Mundo (Homenaje a Tito Rojas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29cb8a582007baa165827b964060800beeb40fbf6b51de8670d7c4f471c4bd0d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/53vURagt8wQUKMdebsZkeS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/53vURagt8wQUKMdebsZkeS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5b57fd6169313821e1df456d48e9f4771de96168df13351a455434dbca6ed5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/44imTxUxhptk4ylHtYgTWn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/44imTxUxhptk4ylHtYgTWn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271ff619c8b315886321bf15e49bafc85adc01b92844b99e543c26483910302a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6MQknxv8SLRbh8SonzvOHg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6MQknxv8SLRbh8SonzvOHg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd45f39dc53022624bc9f5f77b0983d6bdb3207ba31512716bb80c88186ba758. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3LX75mFECSFwHNJXig4Mam.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3LX75mFECSFwHNJXig4Mam.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f48d4b8e87abdea6cef54911d5310752b026115749115168d3e0640c36169d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1reiNXOjsSJuMIA420Bp65.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1reiNXOjsSJuMIA420Bp65.
{"copyright_id":"0xe64c743d86e74e0f0a554587885af9268db8f1fd97bc5370dc8a288bc27aea8a","isrc":"USHM21845185","name":"Nadie Quien Te Quiera","registered_at":"2026-06-04T10:08:17Z","spotify_id":"3dtq6ADxmnpVMZq6RQJKd2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64c743d86e74e0f0a554587885af9268db8f1fd97bc5370dc8a288bc27aea8a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3dtq6ADxmnpVMZq6RQJKd2.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3dtq6ADxmnpVMZq6RQJKd2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe735c8a62a4b2756331d4e338aa095f2abae31266c2bbdc18114c211f7174c4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6GW5GvofdDkQMtu2hdYIlE.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6GW5GvofdDkQMtu2hdYIlE.
WILMER CARTAGENA SEGUNDO CONCIERTO VIRTUAL 2021 (En Vivo)
ZAPEROKO La Resistencia Salsera del Callao
{"copyright_id":"0xc7c2a2afa10f1b535ac7b4c456e0958b5aec697d72213489ce81259410357805","isrc":"QZGLM2170649","name":"La Cura (Homenaje a Frankie Ruiz)","registered_at":"2026-06-04T16:39:01Z","spotify_id":"6LYJBfi33xxnDrser1lU3B","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c2a2afa10f1b535ac7b4c456e0958b5aec697d72213489ce81259410357805. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6LYJBfi33xxnDrser1lU3B.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6LYJBfi33xxnDrser1lU3B.
{"copyright_id":"0x29732efe5c80165985fa70315cb4d097967874cbf425a09fe04a6774c49b55ef","isrc":"QZHZ52062532","name":"Resistiré, la Salsa Nos Une","registered_at":"2026-06-04T15:34:12Z","spotify_id":"6Ucb5hwO3PutBdhdK2rubd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29732efe5c80165985fa70315cb4d097967874cbf425a09fe04a6774c49b55ef. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6Ucb5hwO3PutBdhdK2rubd.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6Ucb5hwO3PutBdhdK2rubd.