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 0x6a2134e23da63db3fdd60d248f4a8b2d59443b948eb61153a7cc578e6c714b0e. 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/3cb0a75d-2d70-48cf-8a96-b6d12e66fd3d.json and https://artists.proofprofile.net/proofs/artist/3cb0a75d-2d70-48cf-8a96-b6d12e66fd3d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xb75754b150c91a6ed6fcccc95ceb0df124d03a6d206db0754dae1670cf7503d9. 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/25Wvw8ZdIwTUUg1Z1Agys8.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/25Wvw8ZdIwTUUg1Z1Agys8.
{"copyright_id":"0xf177f3e0b94c500daf68ab69024b0c7bcd5218edf0ea2827ee2e2d8fb322bfa0","isrc":"QZNW72351929","name":"El son del toro","registered_at":"2026-06-20T16:45:14Z","spotify_id":"5SMTWmJFYPjT5eZ7bJeHD8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf177f3e0b94c500daf68ab69024b0c7bcd5218edf0ea2827ee2e2d8fb322bfa0. 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/5SMTWmJFYPjT5eZ7bJeHD8.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/5SMTWmJFYPjT5eZ7bJeHD8.
{"copyright_id":"0x2c8d62bc2f7dacbb9db89fc5ac348f38a1e8746d268bea15fd78c9fccd33cb7b","isrc":"QZNW72351935","name":"Recuerdos de Hernan","registered_at":"2026-06-21T15:27:26Z","spotify_id":"1mLFHYi6NAgQfn09NEkQun","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8d62bc2f7dacbb9db89fc5ac348f38a1e8746d268bea15fd78c9fccd33cb7b. 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/1mLFHYi6NAgQfn09NEkQun.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/1mLFHYi6NAgQfn09NEkQun.
De Puro Gusto (Celebrando 18 Años de Trayectoria)
{"copyright_id":"0x23fe137647d4ca3c4c84fb33fd4b91618bc8ff325e473add5e00de3a78914887","isrc":"FR96X1782618","name":"Los Mayeles - Sones para Jaripeo","registered_at":"2026-06-04T14:23:41Z","spotify_id":"6wpAMs81FDzTKIbrFtQWEN","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fe137647d4ca3c4c84fb33fd4b91618bc8ff325e473add5e00de3a78914887. 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/6wpAMs81FDzTKIbrFtQWEN.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/6wpAMs81FDzTKIbrFtQWEN.
{"copyright_id":"0x5bbd3c3d2d86eab87f222fac5af5b17804ef3b9a7aa5eaa49cdf6036e407c780","isrc":"FR96X1782619","name":"La Pajarera","registered_at":"2026-06-09T13:09:39Z","spotify_id":"6RxNYyIASHiSROTcFSrvDc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbd3c3d2d86eab87f222fac5af5b17804ef3b9a7aa5eaa49cdf6036e407c780. 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/6RxNYyIASHiSROTcFSrvDc.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/6RxNYyIASHiSROTcFSrvDc.
{"copyright_id":"0x31d3fca365a03bffe408069a22c71104489abe1b439949a2fd2f1ed2da035cf0","isrc":"FR96X1782622","name":"La Amachona - Sones para Jaripeo","registered_at":"2026-06-06T20:52:50Z","spotify_id":"6ZrBD31V7AhBqnCcDDEibM","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d3fca365a03bffe408069a22c71104489abe1b439949a2fd2f1ed2da035cf0. 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/6ZrBD31V7AhBqnCcDDEibM.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/6ZrBD31V7AhBqnCcDDEibM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7461612d8645da2a5808e80c97747dda0b7f020c347318a4316d11f35d8107d9. 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/2g1ZoYKHc9KwD5wB0VouiB.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/2g1ZoYKHc9KwD5wB0VouiB.
Arriba San Nicolás! - Sones para Jaripeo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f62ae3280da21b5f8443998e22765776659dfcacba1e95e1141ae53830e885. 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/5guWrkxFsaMlDp4xnpb3BX.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/5guWrkxFsaMlDp4xnpb3BX.
{"copyright_id":"0x58c77797c3f64a83372452de5b1ef598cac2ab36e4e6ff57ac8c21833ba4c424","isrc":"FR2X41407419","name":"Tu Nuevo Cariñito","registered_at":"2026-06-09T13:10:35Z","spotify_id":"7AFrwQxHdvEZEKfHC7k5xk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c77797c3f64a83372452de5b1ef598cac2ab36e4e6ff57ac8c21833ba4c424. 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/7AFrwQxHdvEZEKfHC7k5xk.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/7AFrwQxHdvEZEKfHC7k5xk.
{"copyright_id":"0xaf41ed1ec2dd76a738fc2cc9a17031248d02711a8ec2c1227c6f3de6e332eded","isrc":"FR2X41407421","name":"Son las Dos de la Mañana","registered_at":"2026-06-07T23:47:45Z","spotify_id":"3r7yzOxkahxw3GKIVH0mzL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf41ed1ec2dd76a738fc2cc9a17031248d02711a8ec2c1227c6f3de6e332eded. 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/3r7yzOxkahxw3GKIVH0mzL.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/3r7yzOxkahxw3GKIVH0mzL.
El Torito de Petate - La Fiesta del Carnaval
{"copyright_id":"0x2ef483842af4520169b1b230814766b2c8926da5cd652de3974ea0d4a1936c70","isrc":"FR2X41407422","name":"El Torito de Petate - La Fiesta del Carnaval","registered_at":"2026-06-06T07:38:59Z","spotify_id":"3gnPTcrVXDY0fN3gjMCCB2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef483842af4520169b1b230814766b2c8926da5cd652de3974ea0d4a1936c70. 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/3gnPTcrVXDY0fN3gjMCCB2.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/3gnPTcrVXDY0fN3gjMCCB2.
{"copyright_id":"0xa7ef96a375d2a8a7ec8d0fb1a6d2b4fc5d14f26f88f63121c74c1d7575524542","isrc":"TCAIL2430163","name":"Juego De Amor","registered_at":"2026-06-11T00:57:11Z","spotify_id":"4JqqcVdvT45ZeWMxXx6ZRI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ef96a375d2a8a7ec8d0fb1a6d2b4fc5d14f26f88f63121c74c1d7575524542. 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/4JqqcVdvT45ZeWMxXx6ZRI.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/4JqqcVdvT45ZeWMxXx6ZRI.
La Boda del Huitlacoche (Versión Instrumental)
La Boda del Huitlacoche - Versión Instrumental
{"copyright_id":"0x70fbcda49992b9909ab8e4749a8cb334d8e20913b3bd5cc435731e9d96f1dfa9","isrc":"ESA012226937","name":"El Son del Tlacololero","registered_at":"2026-06-11T23:23:43Z","spotify_id":"2TjTE3Waw0TviGYdDo3eSD","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fbcda49992b9909ab8e4749a8cb334d8e20913b3bd5cc435731e9d96f1dfa9. 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/2TjTE3Waw0TviGYdDo3eSD.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/2TjTE3Waw0TviGYdDo3eSD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47b61030aa9ed4ff7675ff5b09fbe49c44d3b106f716ba6ef8ae2266f7b9571. 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/66dyymx7d97yPY7xyVSKBW.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/66dyymx7d97yPY7xyVSKBW.
El Africano / Hay! Cosita Linda / Mi Cucú / El Negro Jose
{"copyright_id":"0x598616aecc0ad983e33f5a8a56d8f3a99295c39e03a945f9b8f247062eae348c","isrc":"FR59R1871430","name":"El Africano / Hay! Cosita Linda / Mi Cucú / El Negro Jose","registered_at":"2026-06-18T09:05:15Z","spotify_id":"4hLGkdrekK0zjojcULBknS","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598616aecc0ad983e33f5a8a56d8f3a99295c39e03a945f9b8f247062eae348c. 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/4hLGkdrekK0zjojcULBknS.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/4hLGkdrekK0zjojcULBknS.
{"copyright_id":"0xf906379301fd3707b94fe191a9d7508d242197223dd958892db037bdbc24e602","isrc":"FR59R1871446","name":"Un Fin de Semana en Culiacán - En Vivo","registered_at":"2026-06-28T01:17:05Z","spotify_id":"5QcutF4htutrvySUQJFb3I","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf906379301fd3707b94fe191a9d7508d242197223dd958892db037bdbc24e602. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5QcutF4htutrvySUQJFb3I.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/5QcutF4htutrvySUQJFb3I.
Un Puño de Tierra / Te Llevaste Lo Mejor / Cuanto Me Gusta Este Rancho / Amores de Julia - En Vivo
{"copyright_id":"0x019cd8e78b9e702564791dc9c768d90388ce80e38ae107f68e89fba83c8272f1","isrc":"FR59R1871447","name":"Un Puño de Tierra / Te Llevaste Lo Mejor / Cuanto Me Gusta Este Rancho / Amores de Julia - En Vivo","registered_at":"2026-06-23T23:39:15Z","spotify_id":"7I45NKI7DLGDVOSRiCQOe0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019cd8e78b9e702564791dc9c768d90388ce80e38ae107f68e89fba83c8272f1. 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/7I45NKI7DLGDVOSRiCQOe0.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/7I45NKI7DLGDVOSRiCQOe0.
{"copyright_id":"0xeace61cac69a9e6efb641181133f99233324ec9e071bdc1a89c55008c4cccda3","isrc":"FR59R1871377","name":"Ahora Te Puedes Marchar / El Vampiro","registered_at":"2026-06-09T02:01:07Z","spotify_id":"6McaQy4t5Dm7sDWCkYAq7I","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeace61cac69a9e6efb641181133f99233324ec9e071bdc1a89c55008c4cccda3. 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/6McaQy4t5Dm7sDWCkYAq7I.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/6McaQy4t5Dm7sDWCkYAq7I.