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 0xe7539a4b43e66889b20ad453053b1b66aa991c7b4a2b974290c7a6c777770766. 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/d4bace10-db22-4eac-b5a7-62f83eee5163.json and https://artists.proofprofile.net/proofs/artist/d4bace10-db22-4eac-b5a7-62f83eee5163.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x3e1a1bb51e419c622ff6e26d68ae047321a8f9d85ffdea680220fbe02bdd5025","isrc":"DEG932300123","name":"Tanzen - Paula Tape Remix","registered_at":"2026-06-20T01:19:52Z","spotify_id":"0lkYOo5uOuTYujZFQ4GmL0","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 0x3e1a1bb51e419c622ff6e26d68ae047321a8f9d85ffdea680220fbe02bdd5025. 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/0lkYOo5uOuTYujZFQ4GmL0.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/0lkYOo5uOuTYujZFQ4GmL0.
{"copyright_id":"0x72e8ad33ea5804c0fa01c399403cbfa5b2d82ba94f92740f0aa53f78d4c7fe1b","isrc":"DEG932300119","name":"Tanzen - Club Mix","registered_at":"2026-06-20T13:01:08Z","spotify_id":"6TYYFWMdfLDjEA9dGFxuwv","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e8ad33ea5804c0fa01c399403cbfa5b2d82ba94f92740f0aa53f78d4c7fe1b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6TYYFWMdfLDjEA9dGFxuwv.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/6TYYFWMdfLDjEA9dGFxuwv.
{"copyright_id":"0x3e1a1bb51e419c622ff6e26d68ae047321a8f9d85ffdea680220fbe02bdd5025","isrc":"DEG932300123","name":"Tanzen - Paula Tape Remix","registered_at":"2026-06-20T01:19:52Z","spotify_id":"1NTH5iEZH2fRqS78B0aMAc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1a1bb51e419c622ff6e26d68ae047321a8f9d85ffdea680220fbe02bdd5025. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1NTH5iEZH2fRqS78B0aMAc.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/1NTH5iEZH2fRqS78B0aMAc.
{"copyright_id":"0x72e8ad33ea5804c0fa01c399403cbfa5b2d82ba94f92740f0aa53f78d4c7fe1b","isrc":"DEG932300119","name":"Tanzen - Club Mix","registered_at":"2026-06-20T13:01:08Z","spotify_id":"7faObkpb4luRpU8ULZ61ya","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e8ad33ea5804c0fa01c399403cbfa5b2d82ba94f92740f0aa53f78d4c7fe1b. 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/7faObkpb4luRpU8ULZ61ya.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/7faObkpb4luRpU8ULZ61ya.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765580c3090ff5a3a284a68602446a3324dfb7ce25cb7ffec97b5194a99e1bfc. 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/2oU4UfJ17whbECJki2Fii0.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/2oU4UfJ17whbECJki2Fii0.
{"copyright_id":"0x4c26a959bbcc87c801fbdd204ad95e82b050747d7c62b208ec2a5cfd984f27b7","isrc":"DEG932102178","name":"You Are Not Your Body","registered_at":"2026-06-18T06:32:15Z","spotify_id":"4W1yRofKVpp9okGh1cd8Px","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c26a959bbcc87c801fbdd204ad95e82b050747d7c62b208ec2a5cfd984f27b7. 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/4W1yRofKVpp9okGh1cd8Px.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/4W1yRofKVpp9okGh1cd8Px.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780195b1a5316acda52457e46f59060d0ed310668e19fb72a817f60502a306b9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6JqWurpIaEJWX85joN8ELe.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/6JqWurpIaEJWX85joN8ELe.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765580c3090ff5a3a284a68602446a3324dfb7ce25cb7ffec97b5194a99e1bfc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5o3w5IIvu9Q7IhMikSNcls.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/5o3w5IIvu9Q7IhMikSNcls.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c1b3aaa6e0807ecc0ae3c5ad4d36835b922b6b0d31d7f3192eeaf174fee341. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4uC2RrHmTfq96i55BTk1ML.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/4uC2RrHmTfq96i55BTk1ML.
Love Without Words - Hidden Spheres Rooibos Mix
{"copyright_id":"0x30cb088529c0878ced5260af18a06087c34cd9ac92bf533f2457956d4db6e152","isrc":"GBKQU2094751","name":"Love Without Words - Hidden Spheres Rooibos Mix","registered_at":"2026-06-21T11:03:59Z","spotify_id":"6vyqMKEhAjE4rzH5ufbnAT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30cb088529c0878ced5260af18a06087c34cd9ac92bf533f2457956d4db6e152. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6vyqMKEhAjE4rzH5ufbnAT.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/6vyqMKEhAjE4rzH5ufbnAT.
{"copyright_id":"0xbeebee1f7f66146fe0e9841c4691ac88333789971112de252b66da492c7564bd","isrc":"GBUD71500264","name":"Words Can't Explain","registered_at":"2026-06-09T11:29:38Z","spotify_id":"2wzIg8MSOZKvyNostEygjB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeebee1f7f66146fe0e9841c4691ac88333789971112de252b66da492c7564bd. 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/2wzIg8MSOZKvyNostEygjB.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/2wzIg8MSOZKvyNostEygjB.
{"copyright_id":"0x6ddf504fd659ee09cc4cba6cb3ffb09acd9f4c54a8956cf22b1b429e72e61bc7","isrc":"UKA2G1703009","name":"It Ain't Easy","registered_at":"2026-06-10T14:48:08Z","spotify_id":"2ryYL1mdDTaTS7V8H2CPsU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddf504fd659ee09cc4cba6cb3ffb09acd9f4c54a8956cf22b1b429e72e61bc7. 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/2ryYL1mdDTaTS7V8H2CPsU.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/2ryYL1mdDTaTS7V8H2CPsU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cff65dded0ba43b38b1aebe5c206ab774fb3fdc1177af45e5b34a07ef09af62. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3R5UsttyvDe7ssUW9g84Kx.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/3R5UsttyvDe7ssUW9g84Kx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a627a94887f9be89f046f3b19d4b5708397c174aff558bb407a36d1f6417c9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/298xsU7c0IRdRfC7NXEsei.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/298xsU7c0IRdRfC7NXEsei.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ac4a0361f938cf3d6a1cbe0fea327ac4471adb897866a407209fbaf8e1882a. 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/5YTx2l8opiAOTpcCQEROpJ.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/5YTx2l8opiAOTpcCQEROpJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0712ef774a1d871be9928418debc972f8d64daf986ca55e69c987892a644fa. 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/4Jq3VywdFu2ByAHh61k517.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/4Jq3VywdFu2ByAHh61k517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5180a44a0380a5810e717b3a8916ec7aa4db2e050ebf327c3f4efc5cfe534f2. 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/7huxPaTEgoKQNmCQn8savN.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/7huxPaTEgoKQNmCQn8savN.
{"copyright_id":"0xd6883d0abd67b30e1b426e67cffe62b6b5d57a5f2468e8ed02be05c2b2aba297","isrc":"UKB8U1600066","name":"Well Well","registered_at":"2026-06-08T23:33:19Z","spotify_id":"2rv80DVMn30XVHtkVjYcMn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6883d0abd67b30e1b426e67cffe62b6b5d57a5f2468e8ed02be05c2b2aba297. 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/2rv80DVMn30XVHtkVjYcMn.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/2rv80DVMn30XVHtkVjYcMn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b432ac9fa7fb62088848db865113a1c958fbaa83fa356780aa961a18275bfc6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4aSQIUpn1yWyVnqULFIc7A.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/4aSQIUpn1yWyVnqULFIc7A.
{"copyright_id":"0xbc54890a5d53c43adc903a38af42ebb6d675f5ae7ba86b54ae1b72c6f1005cfd","isrc":"UKB8U1600068","name":"Sleeping Eyes","registered_at":"2026-06-07T15:52:03Z","spotify_id":"1uX57pEZJ5QKCj0XtE2uQf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc54890a5d53c43adc903a38af42ebb6d675f5ae7ba86b54ae1b72c6f1005cfd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1uX57pEZJ5QKCj0XtE2uQf.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/1uX57pEZJ5QKCj0XtE2uQf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944548524d6e4d328f578f03c2e6b3d4010e7c328ed9083c2a71b704be7470c4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1j9hjfeT3XGeqVgtFmzSUd.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/1j9hjfeT3XGeqVgtFmzSUd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6791b872fdafdbfaa0b71bc2eac46531ee27efbd77ee149e1021f1d730a12005. 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/1SOIyZwFROtPNf8rcojhS2.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/1SOIyZwFROtPNf8rcojhS2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf6b4d71f17c71041b1c5af33c663ac0dd28716e10971b9b084168c897c0c12. 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/7fxcNshGvCxlNMGHI1GmCx.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/7fxcNshGvCxlNMGHI1GmCx.
{"copyright_id":"0x7d63967ac0da6d8667516e7ad340f8eabc41e3c90af97f0ec1d0abe4db5175d9","isrc":"UKA2G1508002","name":"Upsn Down","registered_at":"2026-06-18T06:30:06Z","spotify_id":"4wjbiCtgc63z74pPeAIBTC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d63967ac0da6d8667516e7ad340f8eabc41e3c90af97f0ec1d0abe4db5175d9. 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/4wjbiCtgc63z74pPeAIBTC.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/4wjbiCtgc63z74pPeAIBTC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965c2335873c9a4acbcf120df88a61ac6005170bfe8831e5ef53e52cc5181481. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1K9ecbG4tdG8p0TEIGfBSw.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/1K9ecbG4tdG8p0TEIGfBSw.
{"copyright_id":"0xe1b26b98c33131e65666c7defbafe0820e5338aaa2b88fcff5d3e5a5b6895782","isrc":"UKA2G1508004","name":"Bill Loves You","registered_at":"2026-06-05T18:26:26Z","spotify_id":"5P2I73QMjdzxgAGNEKpwQw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b26b98c33131e65666c7defbafe0820e5338aaa2b88fcff5d3e5a5b6895782. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5P2I73QMjdzxgAGNEKpwQw.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/5P2I73QMjdzxgAGNEKpwQw.
Need Your Love - Die Roh's Love Attack Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7506cbd2951595066bb2ad5d2990229bbb5ed4d8ea1752032b1201c5b7070c. 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/4Ox0WGrOx6fGlUTSMc3yOW.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/4Ox0WGrOx6fGlUTSMc3yOW.