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 0xe65e3cd06139cd8dfbffef04b85f5ec7653dbc240703e410479f73cfe581fc9a. 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/f2d2ce94-e111-4b43-b511-b113f24159a6.json and https://artists.proofprofile.net/proofs/artist/f2d2ce94-e111-4b43-b511-b113f24159a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x0cb7fa8cc5c7f647749e16b22a7550ce2f45aa8dd91cf00527dea09fd7aea273","isrc":"QZGLM2365861","name":"Aquí Estoy Yo","registered_at":"2026-06-05T07:01:04Z","spotify_id":"6sAysiKvW3slpYkPH90uCg","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 0x0cb7fa8cc5c7f647749e16b22a7550ce2f45aa8dd91cf00527dea09fd7aea273. 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/6sAysiKvW3slpYkPH90uCg.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/6sAysiKvW3slpYkPH90uCg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e37979d79c4b29bbe456367fd466e1851e7d4f0734626607bae3c2ec6eafdd. 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/0nsLE28U0iFrU7MXO3ctps.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/0nsLE28U0iFrU7MXO3ctps.
{"copyright_id":"0xa6e37979d79c4b29bbe456367fd466e1851e7d4f0734626607bae3c2ec6eafdd","isrc":"QZGLM2492441","name":"Bien Tumbados","registered_at":"2026-06-07T20:42:01Z","spotify_id":"4A5w4dXtLlxZIFTsuDHlCE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e37979d79c4b29bbe456367fd466e1851e7d4f0734626607bae3c2ec6eafdd. 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/4A5w4dXtLlxZIFTsuDHlCE.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/4A5w4dXtLlxZIFTsuDHlCE.
De Brujas y Otros Hábitos (Live Session)
{"copyright_id":"0x76fb6eca1dd28e8e2010deeaa0fbf47619e7cca10d79ffc4f197313726746902","isrc":"QZGLM2549528","name":"Intro - Live Session","registered_at":"2026-06-08T04:03:24Z","spotify_id":"4p28hKJgJ8Rv2mUWliXN6r","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fb6eca1dd28e8e2010deeaa0fbf47619e7cca10d79ffc4f197313726746902. 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/4p28hKJgJ8Rv2mUWliXN6r.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/4p28hKJgJ8Rv2mUWliXN6r.
Graciela / "Carta a Mi Abuela" - Live Session
{"copyright_id":"0x0cb63aea54437c86131ca97564281d441d0b4b0af3ddfa0a0e7a6d313646a288","isrc":"QZGLM2549529","name":"Graciela / \"Carta a Mi Abuela\" - Live Session","registered_at":"2026-06-06T05:01:16Z","spotify_id":"4AXJtxC47Pm6gmFHiXJDyZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb63aea54437c86131ca97564281d441d0b4b0af3ddfa0a0e7a6d313646a288. 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/4AXJtxC47Pm6gmFHiXJDyZ.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/4AXJtxC47Pm6gmFHiXJDyZ.
{"copyright_id":"0x663052b21943d40d15a2ef7d80b7c978cddeba5ccda5f21fb1996fa344e635b6","isrc":"QZGLM2549530","name":"Circe \"Ojos Tristes\" - Live Session","registered_at":"2026-06-06T11:18:54Z","spotify_id":"103KAknDDj3BMR3bOhAi9o","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663052b21943d40d15a2ef7d80b7c978cddeba5ccda5f21fb1996fa344e635b6. 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/103KAknDDj3BMR3bOhAi9o.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/103KAknDDj3BMR3bOhAi9o.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca06fe6cbdc92cf848570fb26ffc97132d567fce386f0227304e44286ac80802. 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/06z4KE4ZN8vtVh9Rmy8Iou.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/06z4KE4ZN8vtVh9Rmy8Iou.
Alejandria / "Ella Es Nostálgica" - Live Session
{"copyright_id":"0xdcfd7af688c45ce560d7257c38cf617eccb976bbc1ceb3fd1e6041f052982fba","isrc":"QZGLM2549532","name":"Alejandria / \"Ella Es Nostálgica\" - Live Session","registered_at":"2026-06-06T17:56:17Z","spotify_id":"5QOSDCaVT5BGTWhCbqzQUg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfd7af688c45ce560d7257c38cf617eccb976bbc1ceb3fd1e6041f052982fba. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5QOSDCaVT5BGTWhCbqzQUg.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/5QOSDCaVT5BGTWhCbqzQUg.
{"copyright_id":"0xc98f6081557709d0160f15151a70a7adc39eba5fc4df16208d7a7c5bec4710de","isrc":"QZGLM2549533","name":"Interludio - Live Session","registered_at":"2026-06-07T20:42:31Z","spotify_id":"2YllUVsO9NIvmkknXIX0oQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98f6081557709d0160f15151a70a7adc39eba5fc4df16208d7a7c5bec4710de. 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/2YllUVsO9NIvmkknXIX0oQ.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/2YllUVsO9NIvmkknXIX0oQ.
Rosario / “Que Bueno Es Tenerte” - Live Session
{"copyright_id":"0x8ba5b51a37ecff89c12a9d124713489d140ca0be834383589f64d9eea7bbdb1e","isrc":"QZGLM2549534","name":"Rosario / “Que Bueno Es Tenerte” - Live Session","registered_at":"2026-06-07T05:47:12Z","spotify_id":"3KjI32lIoYewWLnnO2Uu5t","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba5b51a37ecff89c12a9d124713489d140ca0be834383589f64d9eea7bbdb1e. 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/3KjI32lIoYewWLnnO2Uu5t.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/3KjI32lIoYewWLnnO2Uu5t.
María / "Aroma de Jardín" - Live Session
{"copyright_id":"0x6366ce104563b8e65d6079c37193510c2f8466f41d6de87a36cb0430ccc1a714","isrc":"QZGLM2549535","name":"María / \"Aroma de Jardín\" - Live Session","registered_at":"2026-06-06T17:53:58Z","spotify_id":"2ThdtfPu5Qzvvp7BUIFmPH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6366ce104563b8e65d6079c37193510c2f8466f41d6de87a36cb0430ccc1a714. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2ThdtfPu5Qzvvp7BUIFmPH.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/2ThdtfPu5Qzvvp7BUIFmPH.
{"copyright_id":"0x90dc0ee28a5da8b72f56862afd7feb236b8d562cc17af7263eebbbd791387e0c","isrc":"QZGLM2549536","name":"Pachamama / \"Bendecido\" - Live Session","registered_at":"2026-06-07T01:25:44Z","spotify_id":"3ZHuCZh8VBiPtCMUzr99U3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90dc0ee28a5da8b72f56862afd7feb236b8d562cc17af7263eebbbd791387e0c. 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/3ZHuCZh8VBiPtCMUzr99U3.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/3ZHuCZh8VBiPtCMUzr99U3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c24730f285259071033892f205693f5cb458bfe81405b328087fc19c916418d. 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/0fmzywoGvcxotMGsxNs6eU.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/0fmzywoGvcxotMGsxNs6eU.
{"copyright_id":"0x123681e6d8f61ef2ec9f4c302139c9776795d4ef79e4d60e4135fd59256c3a1c","isrc":"QZGLM2549538","name":"Saori / “Hematomas” - Live Session","registered_at":"2026-06-07T14:03:58Z","spotify_id":"7IOmSft3RbjAJaMRx0fbF1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123681e6d8f61ef2ec9f4c302139c9776795d4ef79e4d60e4135fd59256c3a1c. 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/7IOmSft3RbjAJaMRx0fbF1.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/7IOmSft3RbjAJaMRx0fbF1.
{"copyright_id":"0x3fcde2f936db85275f0f62281dad6e83c5e24a4af4b6860d9cd936e2a2733145","isrc":"QZGLM2549539","name":"Outro - Live Session","registered_at":"2026-06-08T21:03:21Z","spotify_id":"49HfYn9eQYcTpxUDZdy89u","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcde2f936db85275f0f62281dad6e83c5e24a4af4b6860d9cd936e2a2733145. 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/49HfYn9eQYcTpxUDZdy89u.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/49HfYn9eQYcTpxUDZdy89u.
{"copyright_id":"0x0cb7fa8cc5c7f647749e16b22a7550ce2f45aa8dd91cf00527dea09fd7aea273","isrc":"QZGLM2365861","name":"Aquí Estoy Yo","registered_at":"2026-06-05T07:01:04Z","spotify_id":"7wQIwpNZhmvqhfn1x1Yy1i","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb7fa8cc5c7f647749e16b22a7550ce2f45aa8dd91cf00527dea09fd7aea273. 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/7wQIwpNZhmvqhfn1x1Yy1i.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/7wQIwpNZhmvqhfn1x1Yy1i.
{"copyright_id":"0x7a14915ac0b2c1d61c4069eeef6ce7cbae4e64e36ee914aff9aa24c130b6b055","isrc":"QZMZ92331036","name":"Aquí Estoy Yo - Instrumental","registered_at":"2026-06-27T05:47:57Z","spotify_id":"7BTgnX5nMNNevqrcddHjRU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a14915ac0b2c1d61c4069eeef6ce7cbae4e64e36ee914aff9aa24c130b6b055. 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/7BTgnX5nMNNevqrcddHjRU.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/7BTgnX5nMNNevqrcddHjRU.