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 0x81881e05a140fe3ab6f184e254e9e01f8b83e15e4a943b71a876f966b72014b4. Chain 2 (Bitcoin): anchored in block 953941 (2026-06-16T11:51:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20f56915-e1f9-427d-a3df-3719164220b6.json and https://artists.proofprofile.net/proofs/artist/20f56915-e1f9-427d-a3df-3719164220b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Marinero en Tierra, Op. 27: No. 1, Qué altos los balcones
Marinero en Tierra, Op. 27: No. 2, Casadita
Marinero en Tierra, Op. 27: No. 3, Siempre que sueño las playas
Marinero en Tierra, Op. 27: No. 4, Verano
Marinero en Tierra, Op. 27: No. 5, Gimiendo por ver el mar
Combat del somni: No. 1, Damunt de tu només les flors
Combat del somni: No. 2, Aquesta nit un mateix vent
Combat del somni: No. 3, Jo et pressentia com la mar
Combat del somni: No. 4, Fes me la vida transparent
5 Canciones para ninos: No. 1, El caballito
5 Canciones para ninos: No. 4, Canción de cuna
5 Canciones para ninos: No. 3, Canción tonta
5 Canciones para ninos: No. 2, Las cinco horas
5 Canciones para ninos: No. 5, El lagarto
6 Canciones: I. Canción del naranjo seco
Las horas de una estancia, Op. 11: No. 1, El alba
Las horas de una estancia, Op. 11: No. 2, La mañana
Las horas de una estancia, Op. 11: No. 3, El mediodía
Las horas de una estancia, Op. 11: No. 4, La tarde
Las horas de una estancia, Op. 11: No. 5, La noche
Jonathan Leshnoff: Zohar & Symphony No. 2 "Innerspace"
Symphony No. 2 "Innerspace": I. Broad. Maestoso
Symphony No. 2 "Innerspace": II. Netzach: Fast and Intense
Symphony No. 2 "Innerspace": V. Unimaginable
Creation/Creator: I. Elephant in the Dark
Creation/Creator: III. Pan Gu and the Egg-Shaped Cloud
Creation/Creator: IV. Laboratories of the Universe
Creation/Creator: VI. This Dream, Strange and Moving
Creation/Creator: VIII. Ms. Margaret Cavendish
Creation/Creator: IX. Between Green Thread and Broccoli
Creation/Creator: XI. An Angel in the Marble
Creation/Creator: XII. The Music it Makes
Creation/Creator: XIII. All Things Bound in a Single Book
Vaughan Williams: Symphony No. 5 in D Major, Fantasia on a Theme by Thomas Tallis & Serenade to Music
9 Psalm Tunes for Archbishop Parker’s Psalter: No. 3, Why Fum'th in Fight?
Atlanta Symphony Orchestra Chamber Chorus
Symphony No. 5 in D Major: I. Preludio. Moderato
Symphony No. 5 in D Major: II. Scherzo. Presto
Symphony No. 5 in D Major: III. Romanza. Lento
Symphony No. 5 in D Major: IV. Passacaglia. Moderato
Introductory comments to Ainadamar by Osvaldo Golijov: The story of Ainadamar
Introductory comments to Ainadamar by Osvaldo Golijov: The musical roots of Ainadamar
Ainadamar / Act 1: Mariana: 2. Mariana, tus ojos
Introductory comments to Ainadamar by Osvaldo Golijov: The two main themes of Ainadamar, myth and legacy
Ainadamar / Act 1: Mariana: 3. Bar Albor de Madrid
Golijov talks about Ainadamar - Listening Guide with musical examples: Preludio de Agua y Caballo (comment and musical example)
Ainadamar / Act 1: Mariana: 4. Desde mi ventana (Aria a la estatua de Mariana)
Golijov talks about Ainadamar - Listening Guide with musical examples: Balada - Mariana (comment and musical example)
Ainadamar / Act 1: Mariana: 5. Muerte a Caballo
Golijov talks about Ainadamar - Listening Guide with musical examples: Mariana, tus ojos (comment and musical example)
Golijov talks about Ainadamar - Listening Guide with musical examples: Bar Albor de Madrid (comment and musical example)
Ainadamar / Act 2: Federico: 2. Quiero arrancarme los ojos
Golijov talks about Ainadamar - Listening Guide with musical examples: Desde mi ventana (comment and musical example)
Ainadamar / Act 2: Federico: 3. A La Habana
Golijov talks about Ainadamar - Listening Guide with musical examples: Muerte a Caballo (comment and musical example)
Ainadamar / Act 2: Federico: 4. Quiero cantar entre las explosiones
Golijov talks about Ainadamar - Listening Guide with musical examples: Balada - Federico (comment and musical example)
Golijov talks about Ainadamar - Listening Guide with musical examples: Quiero arrancarme los ojos (comment and musical example)
Ainadamar / Act 2: Federico: 6. La Fuente de las Lágrimas
Golijov talks about Ainadamar - Listening Guide with musical examples: A la Habana (comment and musical example)
Ainadamar / Act 2: Federico: 7. Confesión
Golijov talks about Ainadamar - Listening Guide with musical examples: Quiero cantar entre las explosiones (comment and musical example)
Ainadamar: Interludio de Balazos y Lamento por la Muerte de Federico
Golijov talks about Ainadamar - Listening Guide with musical examples: Arresto (comment and musical example)
Golijov talks about Ainadamar - Listening Guide with musical examples: La Fuente de las Lágrimas (comment and musical example)
Ainadamar / Act 3: Margarita: 2. De mi fuente tu emerges
Golijov talks about Ainadamar - Listening Guide with musical examples: Confesión (comment and musical example)
Ainadamar / Act 3: Margarita: 3. Tome su mano
Golijov talks about Ainadamar - Listening Guide with musical examples: Interludio de Balazos y Lamento por la Muerte de Federico (comment and musical example)
Ainadamar / Act 3: Margarita: 4. Crepúsculo delirante
Golijov talks about Ainadamar - Listening Guide with musical examples: Balada - Margarita (comment and musical example)
Ainadamar / Act 3: Margarita: 5. Doy mi sangre
Golijov talks about Ainadamar - Listening Guide with musical examples: De mi fuente tu emerges (comment and musical example)
Ainadamar / Act 3: Margarita: 6. Yo soy la libertad
Golijov talks about Ainadamar - Listening Guide with musical examples: Tome su mano (comment and musical example)
Golijov talks about Ainadamar - Listening Guide with musical examples: Crepúsculo delirante (comment and musical example)
Golijov talks about Ainadamar - Listening Guide with musical examples: Doy mi sangre (comment and musical example)
Golijov talks about Ainadamar - Listening Guide with musical examples: Yo soy la libertad (comment and musical example)
Bonus Music "Desde mi ventana - keepalive rework": Osvaldo Golijov introduces the remix artist, Jeremy Flower, sound designer and lap top performer
Bonus Music "Desde mi ventana - keepalive rework": Bonus Music track: Desde mi ventana - keepalive rework
La Pasión según San Marcos: 1. Visión: Bautismo en la Cruz
Members of the Simón Bolívar Youth Orchestra of Venezuela
La Pasión según San Marcos: 23. Soy Yo (Confesión)
La Pasión según San Marcos: 2. Danza del Pescador Pescado
La Pasión según San Marcos: 24. Escarnio y Negación
La Pasión según San Marcos: 3. Primer Anuncio
La Pasión según San Marcos: 25. Desgarro de la Túnica
La Pasión según San Marcos: 4. Segundo Anuncio
La Pasión según San Marcos: 26. Lúa descolorida (Aria de las lágrimas de Pedro)
La Pasión según San Marcos: 5. Tercer Anuncio: En Fiesta No
La Pasión según San Marcos: 27. Amanecer: Ante Pilato
La Pasión según San Marcos: 28. Silencio
La Pasión según San Marcos: 7. Uncíon en Betania
La Pasión según San Marcos: 29. Sentencia
La Pasión según San Marcos: 8. ¿Por qué?
La Pasión según San Marcos: 30./31. Comparsa Al Gólgotha - Danza de la Sábana Púrpura - Manto Sagrado
La Pasión según San Marcos: 9. Oración Lucumí (Aria con Grillos)
La Pasión según San Marcos: 32. Crucifixión
La Pasión según San Marcos: 10. El Primer Día
La Pasión según San Marcos: 11./12. Judas y El Cordero Pascual
La Pasión según San Marcos: 13. Quisiera Yo Renegar (Aria de Judas)
La Pasión según San Marcos: 14. Eucaristía
La Pasión según San Marcos: 15. Demos Gracias al Señor
La Pasión según San Marcos: 16. Al Monte
La Pasión según San Marcos: 17. Cara a Cara
La Pasión según San Marcos: 18. En Getsemaní
La Pasión según San Marcos: 19. Agonía (Aria de Jesús)
La Pasión según San Marcos: 20. Arresto - 21. Danza Sábana Blanca
La Pasión según San Marcos: 22. Ante Caifás
Golijov: La Pasiòn (Incl. Listening Guide: Osvaldo Golijov talks about La Pasión)
La Pasión según San Marcos - Listening Guide: History
La Pasión según San Marco - Listening Guide: New Recording
La Pasión según San Marco - Listening Guide: Sound
La Pasión según San Marco - Listening Guide: Vision
La Pasión según San Marco - Listening Guide: Por qué?
La Pasión según San Marco - Listening Guide: Eucharist
La Pasión según San Marco - Listening Guide: Demos gracias
La Pasión según San Marco - Listening Guide: Agonía y arresto
La Pasión según San Marco - Listening Guide: Soy yo
La Pasión según San Marco - Listening Guide: Lúa Descolorida
La Pasión según San Marco - Listening Guide: Amanecer y silencio
La Pasión según San Marco - Listening Guide: Comparsa y Cruxificion
La Pasión según San Marco - Listening Guide: Muerte y Kadish
7 Canciones populares Españolas: No. 1, El paño moruno
7 Canciones populares Españolas: No. 2, Seguidilla murciana
7 Canciones populares Españolas: No. 3, Asturiana
7 Canciones populares Españolas: No. 4, Jota
7 Canciones populares Españolas: No. 5, Nana
7 Canciones populares Españolas: No. 6, Canción
7 Canciones populares Españolas: No. 7, Polo
Canciones clásicas Españolas, Vol. 1: No. 1, La mi sola, Laureola
Canciones clásicas Españolas, Vol. 1: No. 2, Al amor
Canciones clásicas Españolas, Vol. 1: No. 3, Corazón porque pasais
Canciones clásicas Españolas, Vol. 1: No. 4, El majo celoso
Canciones clásicas Españolas, Vol. 1: No. 5, Con amores, la mi madre
Canciones clásicas Españolas, Vol. 1: No. 6, Dos cantares populares
Canciones clásicas Españolas, Vol. 1: No. 7, Coplas de curro dulce
4 Madrigales amatorios: No. 1, De los álamos vengo, madre
4 Madrigales amatorios: No. 2, Con qué la lavaré
4 Madrigales amatorios: No. 3, Vos me matásteis
4 Madrigales amatorios: No. 4, De dónde venís, amore
Goyescas: La Maja y el Ruiseñor (Arr. for Voice & Piano)
Poema en forma de canciones, Op. 19: No. 1, Dedicatoria
Poema en forma de canciones, Op. 19: No. 2, Nunca olvida
Poema en forma de canciones, Op. 19: No. 3, Cantares
Poema en forma de canciones, Op. 19: No. 4, Los dos miedos
Poema en forma de canciones, Op. 19: No. 5, Las locas por amor
Robert Spano: Hölderlin-Lieder & Piano Sonata "Four Elements"
Hölderlin-Lieder: No. 2, Sokrates und Alcibiades
Piano Sonata "Four Elements": I. Earth Songs
Piano Sonata "Four Elements": II. Air Born
Piano Sonata "Four Elements": III. Under Water
Piano Sonata "Four Elements": IV. On Fire
Vaughan Williams: Dona nobis pacem, Symphony No. 4 & The Lark Ascending
Symphony No. 4 in F Minor: II. Andante moderato
Symphony No. 4 in F Minor: III. Scherzo. Allegro molto
Symphony No. 4 in F Minor: IV. Finale con epilogo fugato. Allegro molto
Dona nobis pacem: The Angel of Death Has Been Aboard
Jessica Rivera Sings Romantic Music for Soprano, Clarinet & Piano
Der Hirt auf dem Felsen (the Shepherd on the Rock), Op. 129, D. 965
La Pasion segun San Marcos: Lua descolorida
6 Lieder, Op. 103: No. 1, Sei still mein Herz
6 Lieder, Op. 103: No. 5, Das Heimliche Lied
3 Canciones mexicanas: No. 2, Inspiracion
3 Canciones mexicanas: No. 3, Sueno en el puerto
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 → block OTSBitcoinBlock must exist at that height 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 0xdaee01f045ac82ae7a66cee53c7967ad494aa2f1cafefd0fd27e19a63c15fb5c. 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/DEN960532801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa802a5934bba9557b4199a111ca297fef9f0adf61e0dbd4e4803e95ea0e0d461. 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/DEN960532802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b187e535c1b3266d5c5e6303a03e9f28179f714c55e90ad2678b3bfa4d6106. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEN960532803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8572fe82c1fc7ef76e77f9e09cbd838cfef77b356edf7e5afce2b98a94badafb. 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/DEN960532807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb170dbf74bcef796b3c386d90a92477c641e75b5ca7da7e46d407c33110d4334. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEN960532808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f5d81f5649c114207f5e95a37e1f752c75b4c4a679900ea0896d0988ef4d83. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEN960532809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903c7d50e3614d95955545f691deae2cf968a426825e9552af1fd4150b811779. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEN960532812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b524be79b257dc346652dd25e9714975e8a7fa305c43a8393a5af1660e18f0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEN960532813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc26db5f86aef1d6bcf417e0d87733fbab02802206ebd46898b1a458d137430c. 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/DEN960532814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6e2293500e355122fc553f8627fea292e5f7a244e318190e368a67554b4499. 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/DEN960532817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2573d476ae2f317ad2c535b83d35868e2f3d05e2e7f219c397321489a4ed8f60. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/DEN960532818.
Ravel, M.: Daphnis et Chloe / Poulenc, F.: Gloria
Gloria, FP 177: Qui sedes ad dexteram Patris
Daphnis et Chloé: Pt. I: Danse religieuse
Daphnis et Chloé: Pt. I: Les jeunes filles attirent Daphnis - Danse generale
Daphnis et Chloé: Pt. I: Danse grotesque de Dorcon
Daphnis et Chloé: Pt. I: Danse legere et gracieuse de Daphnis
Daphnis et Chloé: Pt. I: Les rires s'interrompent - Danse de Lyceion
Daphnis et Chloé: Pt. I: Une lumiere irreelle enveloppe le paysage - Danse lente et mysterieuse
Daphnis et Chloé: Pt. II: Anime et tres rude - Bryaxis ordonne d'amener la captive
Daphnis et Chloé: Pt. II: Danse suppliante de Chloe
Daphnis et Chloé: Pt. III: Aucun bruit que le murmure des ruisselets amasses par la rosee qui coule des roches - Le vieux berger Lammon
Daphnis et Chloé: Pt. III: Chloe figure la jeune nymphe errant das la prairie - Devant l'autel des Nymphes
Daphnis et Chloé: Pt. III: Danse generale
Requiem, Pt. 1: II. Sequence I. Dies irae
Requiem, Pt. 1: III. Sequence II. Tuba mirum
Requiem, Pt. 1: IV. Sequence III. Liber scriptus
Requiem, Pt. 1: V. Sequence IV. Quid sum miser
Requiem, Pt. 1: VI. Sequence V. Recordare
Requiem, Pt. 1: VII. Sequence VI. Confutatis - Lacrymosa
Ein Heldenleben, Op. 40: Des Helden Widersacher
Ein Heldenleben, Op. 40: Des Helden Gefährtin
Ein Heldenleben, Op. 40: Des Helden Walstatt
Ein Heldenleben, Op. 40: Des Helden Friedenswerke
Ein Heldenleben, Op. 40: Des Helden Weltflucht und Vollendung
Bachianas Brasileiras No. 5: Ária (Cantilena)
Bachianas Brasileiras No. 5: Dança (Martelo)
Ian Krouse: Nocturnes, Op. 60 & Invocation, Op. 54
Invocation, Op. 54: No. 1, Weary with Toil
Invocation, Op. 54: No. 2, Cuántas veces, amor
Invocation, Op. 54: No. 3, For a Certain Night
Three Love Songs: 1. Before Loving You, My Love
Three Love Songs: 2. How Many Roads to Reach a Kiss
River Songs: 1. Song to the Trees and Streams
Messiah, HWV 56: No. 2, Comfort Ye My People
Messiah, HWV 56: No. 3, Ev'ry Valley Shall Be Exalted
Messiah, HWV 56: No. 4, and the Glory of the Lord
Messiah, HWV 56: No. 5, Thus Saith the Lord of Hosts
Messiah, HWV 56: No. 6, but Who May Abide the Day of His Coming
Messiah, HWV 56: No. 7, and He Shall Purify the Sons of Levi
Messiah, HWV 56: No. 8, Behold, a Virgin Shall Conceive
Messiah, HWV 56: No. 9, O Thou That Tellest Good Tidings to Zion
Messiah, HWV 56: No. 10, for Behold, Darkness Shall Cover the Earth
Messiah, HWV 56: No. 11, the People That Walked in Darkness Have Seen a Great Light
Messiah, HWV 56: No. 12, for Unto Us a Child Is Born
Messiah, HWV 56: No. 14A, There Were Shepherds Abiding in the Fields
Messiah, HWV 56: No. 14B, and Lo, the Angel of the Lord
Messiah, HWV 56: No. 15, and the Angel Said Unto Them
Messiah, HWV 56: No. 16, and Suddenly There Was with the Angel
Messiah, HWV 56: No. 17, Glory to God in the Highest
Messiah, HWV 56: No. 18, Rejoice Greatly, O Daughter of Zion
Messiah, HWV 56: No. 19, Then Shall the Eyes of the Blind Be Opened
Messiah, HWV 56: No. 20, He Shall Feed His Flock Like a Shepherd
Messiah, HWV 56: No. 23, He Was Despised and Rejected of Men
Messiah, HWV 56: No. 45, I Know That My Redeemer Liveth
Messiah, HWV 56: No. 47, Behold, I Tell You a Mystery
Messiah, HWV 56: No. 48, the Trumpet Shall Sound
Messiah, HWV 56: No. 42, He That Dwelleth in Heaven
Messiah, HWV 56: No. 43, Thou Shalt Break Them with a Rod of Iron
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Dona Nobis Pacem: The Angel of Death has been aboard
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487fce2f2fc0ada619b20ef7f06a2f103edf9bb30163a9db9bb404456a5197af. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USXM71300012.