Kazu
type: MusicGroup
genre: latin hip hop
popularity: 39
followers: 21732
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2234ef9a1a581517dce58b65b6f6f9670862e0f45cd9bd3a935d87993ec7bb7c
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953423
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d99c02e2-2688-4fd8-a345-17bea8afa962.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d99c02e2-2688-4fd8-a345-17bea8afa962.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d99c02e2-2688-4fd8-a345-17bea8afa962
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T21:20:00Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2234ef9a1a581517dce58b65b6f6f9670862e0f45cd9bd3a935d87993ec7bb7c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d99c02e2-2688-4fd8-a345-17bea8afa962.json and https://artists.proofprofile.net/proofs/artist/d99c02e2-2688-4fd8-a345-17bea8afa962.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
album: Barrio Caliente
  type: MusicAlbum
  date published: 2023-07-19
  track: Barrio Caliente
    type: MusicRecording
    duration: PT3M8S
    duration ms: 188750
    explicit: false
    by artist: Chato 473
    by artist: Kazu
    in album: Barrio Caliente
      type: MusicAlbum
      date published: 2023-07-19
    isrc code: QM3DF2259068
album: Sin Pesar
  type: MusicAlbum
  date published: 2023-06-06
  track: Sin Pesar
    type: MusicRecording
    duration: PT3M3S
    duration ms: 183015
    explicit: false
    by artist: Iyhon Secuaz
    by artist: Kazu
    by artist: Dee Stebang
    in album: Sin Pesar
      type: MusicAlbum
      date published: 2023-06-06
    isrc code: QZNJV2382762
album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
  track: La Voz del Alter Ego
    type: MusicRecording
    duration: PT1M21S
    duration ms: 81894
    explicit: false
    by artist: Kazu
    in album: Ántrax
      type: MusicAlbum
      date published: 2021-06-04
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    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      type: PropertyValue
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    additional property: OTSRecordURL
      type: PropertyValue
      value: https://artists.proofprofile.net/proofs/track/5PUYC07TeCkufRe9tGnOwg.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5PUYC07TeCkufRe9tGnOwg
    additional property: OTSTimestamp
      type: PropertyValue
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    additional property: OTSCanonicalRecord
      type: PropertyValue
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5b2e6fb63800476ae805017f3a7ac7a00c9757c82ee8537e1035ad15a396fe. 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/5PUYC07TeCkufRe9tGnOwg.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/5PUYC07TeCkufRe9tGnOwg.
      date published: 2026-06-13T13:32:09Z
      text: {"copyright_id":"0xaf5b2e6fb63800476ae805017f3a7ac7a00c9757c82ee8537e1035ad15a396fe","isrc":"USHM22147006","name":"La Voz del Alter Ego","registered_at":"2026-06-11T12:04:51Z","spotify_id":"5PUYC07TeCkufRe9tGnOwg","type":"track"}
  track: Deleznable
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    duration: PT1M52S
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    explicit: false
    by artist: Kazu
    in album: Ántrax
      type: MusicAlbum
      date published: 2021-06-04
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    additional property: CopyrightStatus
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
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      value: https://blockstream.info/api/block/956304
    additional property: OTSRecordURL
      type: PropertyValue
      value: https://artists.proofprofile.net/proofs/track/3PWtFdCrv2Cjh0UvaJ4FY1.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3PWtFdCrv2Cjh0UvaJ4FY1
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T03:55:08Z
    additional property: OTSCanonicalRecord
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994d3ba0e5a786e2a95c404fa0df2657dbe63649355c3bff7b8f232ee9f7dd9b. 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/3PWtFdCrv2Cjh0UvaJ4FY1.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/3PWtFdCrv2Cjh0UvaJ4FY1.
      date published: 2026-07-02T03:55:08Z
  track: El Trono del Edor
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    by artist: Kazu
    in album: Ántrax
      type: MusicAlbum
      date published: 2021-06-04
    isrc code: USHM22147008
    additional property: CopyrightID
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      type: PropertyValue
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    additional property: CopyrightRegisteredAt
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    additional property: CopyrightChainExplorerURL
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    additional property: OTSBitcoinBlock
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      value: https://blockstream.info/api/block/956312
    additional property: OTSRecordURL
      type: PropertyValue
      value: https://artists.proofprofile.net/proofs/track/1wpjRXjunDAn4EakqhS9Zh.json
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1wpjRXjunDAn4EakqhS9Zh
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T05:09:12Z
    additional property: OTSCanonicalRecord
      type: PropertyValue
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 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
    subject of: OpenTimestamps Proof of Existence
  track: Memorias de un Escritor
  track: La Inmoralidad de la Gracia
  track: Interludio
  track: Rasgos de Guerra
  track: Mentira
  track: Ántrax
  track: Mariposas Sucias, Pt. 1
  track: Mariposas Sucias, Pt. 2
album: El Lado Oscuro del Prisma
album: Frío
album: Blanco Oscuro
album: Sol de Media Noche
album: Session 1
album: Palabra
album: La Bendición del Diablo
album: La Forma De Mis Sueños
album: Masacre En El Jardín
album: El Peor De Los Personajes
album: La Fe Maldita
album: Blindaje
album: Como un Acto Divino
album: Noches Frías
album: Entre la Espada y la Pared
album: Jamas por Siempre
album: Sentí Caer
album: Paisaje de Mi Herida
album: Se
album: En Medio del Miedo
album: Droga
album: Suerte
album: Como un Poema
album: Game
album: Compulsivo
album: En la Misma Orilla
album: Dime
album: El Precio Infinito
album: Ritmo Cabron
album: Elixir
album: La Insurrección de Lo Vigente
album: Sin Garantía
album: Papel Palacio
album: El Diablo Bendecido
album: Duele
album: Roedores
album: Sin Trampa
track: En Medio del Miedo
track: Session 1
track: Droga
track: Barrio Caliente
track: Sin Pesar
track: La Voz del Alter Ego
track: Deleznable
track: El Trono del Edor
track: Memorias de un Escritor
track: La Inmoralidad de la Gracia
track: Interludio
track: Rasgos de Guerra
track: Mentira
track: Ántrax
track: Mariposas Sucias, Pt. 1
track: Mariposas Sucias, Pt. 2
track: El as Bajo la Manga
track: Luna
track: Solo Quieren Sonar
track: En Terrenos Hostiles

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07788cd74e58db826a376a9fa2173548ec44924605a93f4c36ab9ecd5aba4f50. 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/1wpjRXjunDAn4EakqhS9Zh.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/1wpjRXjunDAn4EakqhS9Zh.
date published: 2026-07-02T05:09:12Z
text: {"copyright_id":"0x07788cd74e58db826a376a9fa2173548ec44924605a93f4c36ab9ecd5aba4f50","isrc":"USHM22147008","name":"El Trono del Edor","registered_at":"2026-06-25T23:09:25Z","spotify_id":"1wpjRXjunDAn4EakqhS9Zh","type":"track"}

Memorias de un Escritor
type: MusicRecording
duration: PT2M43S
duration ms: 163449
explicit: false
by artist: Kazu
by artist: Tatiana Gomez Rap
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147009
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T08:21:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9861a293494478a03f5c4238dd42d0ff4a160c2c77e0068a4ea8760c397d8b34
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/track/3ed9N4UIZZGD1lya4n3KAQ.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3ed9N4UIZZGD1lya4n3KAQ
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9861a293494478a03f5c4238dd42d0ff4a160c2c77e0068a4ea8760c397d8b34. 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/3ed9N4UIZZGD1lya4n3KAQ.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/3ed9N4UIZZGD1lya4n3KAQ.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x9861a293494478a03f5c4238dd42d0ff4a160c2c77e0068a4ea8760c397d8b34","isrc":"USHM22147009","name":"Memorias de un Escritor","registered_at":"2026-06-23T08:21:59Z","spotify_id":"3ed9N4UIZZGD1lya4n3KAQ","type":"track"}

La Inmoralidad de la Gracia
type: MusicRecording
duration: PT2M35S
duration ms: 155690
explicit: false
by artist: Kazu
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147010
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0ZnBmcgK8JhV6CS5oyFlbb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0ZnBmcgK8JhV6CS5oyFlbb
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4aa32df3ff8381794aeb93a165ab2ed66fceff9c0722abcd1fee5db70eabc5. 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/0ZnBmcgK8JhV6CS5oyFlbb.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/0ZnBmcgK8JhV6CS5oyFlbb.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xcb4aa32df3ff8381794aeb93a165ab2ed66fceff9c0722abcd1fee5db70eabc5","isrc":"USHM22147010","name":"La Inmoralidad de la Gracia","registered_at":"2026-06-21T04:41:56Z","spotify_id":"0ZnBmcgK8JhV6CS5oyFlbb","type":"track"}

Interludio
type: MusicRecording
duration: PT1M41S
duration ms: 101094
explicit: false
by artist: Kazu
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147011

Rasgos de Guerra
type: MusicRecording
duration: PT1M43S
duration ms: 103158
explicit: false
by artist: Kazu
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147012

Mentira
type: MusicRecording
duration: PT3M56S
duration ms: 236095
explicit: false
by artist: Kazu
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147013
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T15:29:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x211dcdceebcc74c92a5303008bf0444755ebd20ed84bd819da425e34d286e007
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5VqthwzPBaF0ThBOcTA6Cw.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5VqthwzPBaF0ThBOcTA6Cw
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211dcdceebcc74c92a5303008bf0444755ebd20ed84bd819da425e34d286e007. 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/5VqthwzPBaF0ThBOcTA6Cw.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/5VqthwzPBaF0ThBOcTA6Cw.
  date published: 2026-07-02T03:55:08Z

Ántrax
type: MusicRecording
duration: PT2M37S
duration ms: 157519
explicit: false
by artist: Kazu
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147014
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T02:49:15+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x8b07a2e45f7f90e39e172e3cdd83f85ffeb8feac1e6cc8620084647cd0e39396
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953515
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3bC0DXAmgnRsFGMY3CDVOs.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3bC0DXAmgnRsFGMY3CDVOs
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8b07a2e45f7f90e39e172e3cdd83f85ffeb8feac1e6cc8620084647cd0e39396","isrc":"USHM22147014","name":"Ántrax","registered_at":"2026-06-07T02:49:15Z","spotify_id":"3bC0DXAmgnRsFGMY3CDVOs","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b07a2e45f7f90e39e172e3cdd83f85ffeb8feac1e6cc8620084647cd0e39396. 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/3bC0DXAmgnRsFGMY3CDVOs.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/3bC0DXAmgnRsFGMY3CDVOs.
  date published: 2026-06-13T12:53:06Z
  text: {"copyright_id":"0x8b07a2e45f7f90e39e172e3cdd83f85ffeb8feac1e6cc8620084647cd0e39396","isrc":"USHM22147014","name":"Ántrax","registered_at":"2026-06-07T02:49:15Z","spotify_id":"3bC0DXAmgnRsFGMY3CDVOs","type":"track"}

Mariposas Sucias, Pt. 1
type: MusicRecording
duration: PT3M6S
duration ms: 186489
explicit: false
by artist: Kazu
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147015
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T07:48:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x63f673005b242f526fbe3180cef1c46a1418b714bc3dbc8277a36911ea3b9e4a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5n7jAElbtSkN0j0HnJG4Ya.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5n7jAElbtSkN0j0HnJG4Ya
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x63f673005b242f526fbe3180cef1c46a1418b714bc3dbc8277a36911ea3b9e4a","isrc":"USHM22147015","name":"Mariposas Sucias, Pt. 1","registered_at":"2026-06-20T07:48:23Z","spotify_id":"5n7jAElbtSkN0j0HnJG4Ya","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f673005b242f526fbe3180cef1c46a1418b714bc3dbc8277a36911ea3b9e4a. 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/5n7jAElbtSkN0j0HnJG4Ya.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/5n7jAElbtSkN0j0HnJG4Ya.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x63f673005b242f526fbe3180cef1c46a1418b714bc3dbc8277a36911ea3b9e4a","isrc":"USHM22147015","name":"Mariposas Sucias, Pt. 1","registered_at":"2026-06-20T07:48:23Z","spotify_id":"5n7jAElbtSkN0j0HnJG4Ya","type":"track"}

Mariposas Sucias, Pt. 2
type: MusicRecording
duration: PT2M56S
duration ms: 176510
explicit: false
by artist: Kazu
by artist: Ziferk Rap Wasay
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147016
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T19:00:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb6c4cf68882c4833506ddeae99ca8dc92a08a5dccf10e1222a6a53da28117f4b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6LwiW8N9mrljOswLvkKOMx.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6LwiW8N9mrljOswLvkKOMx
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb6c4cf68882c4833506ddeae99ca8dc92a08a5dccf10e1222a6a53da28117f4b","isrc":"USHM22147016","name":"Mariposas Sucias, Pt. 2","registered_at":"2026-06-09T19:00:36Z","spotify_id":"6LwiW8N9mrljOswLvkKOMx","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c4cf68882c4833506ddeae99ca8dc92a08a5dccf10e1222a6a53da28117f4b. 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/6LwiW8N9mrljOswLvkKOMx.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/6LwiW8N9mrljOswLvkKOMx.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xb6c4cf68882c4833506ddeae99ca8dc92a08a5dccf10e1222a6a53da28117f4b","isrc":"USHM22147016","name":"Mariposas Sucias, Pt. 2","registered_at":"2026-06-09T19:00:36Z","spotify_id":"6LwiW8N9mrljOswLvkKOMx","type":"track"}

El Lado Oscuro del Prisma
type: MusicAlbum
date published: 2021-05-14
track: El as Bajo la Manga
  type: MusicRecording
  duration: PT2M54S
  duration ms: 174969
  explicit: false
  by artist: Kazu
  in album: El Lado Oscuro del Prisma
    type: MusicAlbum
    date published: 2021-05-14
  isrc code: USHM22103150
track: Luna
  type: MusicRecording
  duration: PT3M42S
  duration ms: 222146
  explicit: false
  by artist: Kazu
  in album: El Lado Oscuro del Prisma
    type: MusicAlbum
    date published: 2021-05-14
  isrc code: USHM22103151
track: Solo Quieren Sonar
  type: MusicRecording
  duration: PT3M43S
  duration ms: 223948
  explicit: false
  by artist: Kazu
  in album: El Lado Oscuro del Prisma
    type: MusicAlbum
    date published: 2021-05-14
  isrc code: USHM22103152
track: En Terrenos Hostiles
  type: MusicRecording
  duration: PT2M57S
  duration ms: 177816
  explicit: false
  by artist: Kazu
  in album: El Lado Oscuro del Prisma
    type: MusicAlbum
    date published: 2021-05-14
  isrc code: USHM22103153
track: Entre Mentes
  type: MusicRecording
  duration: PT3M2S
  duration ms: 182649
  explicit: false
  by artist: Kazu
  in album: El Lado Oscuro del Prisma
    type: MusicAlbum
    date published: 2021-05-14
  isrc code: USHM22103154
track: Contraataca
  type: MusicRecording
  duration: PT3M31S
  duration ms: 211148
  explicit: false
  by artist: Kazu
  in album: El Lado Oscuro del Prisma
    type: MusicAlbum
    date published: 2021-05-14
  isrc code: USHM22103155
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T07:49:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb8017ead2031cb533f683452363af974ac4c93615115e8ada931281475ec7b00
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1OqLB0WndSaEUhhsXDYNS8.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1OqLB0WndSaEUhhsXDYNS8
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8017ead2031cb533f683452363af974ac4c93615115e8ada931281475ec7b00. 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/1OqLB0WndSaEUhhsXDYNS8.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/1OqLB0WndSaEUhhsXDYNS8.
    date published: 2026-07-02T03:30:09Z
track: Desamparo
  type: MusicRecording
  duration: PT3M26S
  duration ms: 206786
  explicit: false
  by artist: Kazu
  by artist: El Redcode
  in album: El Lado Oscuro del Prisma
    type: MusicAlbum
    date published: 2021-05-14
  isrc code: USHM22103156
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T18:29:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb5d9c425380fca755c599f780f6e7f799f01bc29cfe4f694cfde1eec11499d70
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953520
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4E4BOwcZZl2s2MUTAHbADE.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4E4BOwcZZl2s2MUTAHbADE
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d9c425380fca755c599f780f6e7f799f01bc29cfe4f694cfde1eec11499d70. 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/4E4BOwcZZl2s2MUTAHbADE.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/4E4BOwcZZl2s2MUTAHbADE.
    date published: 2026-06-13T13:32:09Z
track: Hienas
  type: MusicRecording
  duration: PT3M9S
  duration ms: 189284
  explicit: false
  by artist: Kazu
  in album: El Lado Oscuro del Prisma
    type: MusicAlbum
    date published: 2021-05-14
  isrc code: USHM22103157
track: Noche Oscura
  type: MusicRecording
  duration: PT3M9S
  duration ms: 189127
  explicit: false
  by artist: Kazu
  by artist: Tatiana Gomez Rap
  in album: El Lado Oscuro del Prisma
    type: MusicAlbum
    date published: 2021-05-14
  isrc code: USHM22103158
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T18:29:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x84e164eb982d8b87a5d8cb3664a33fffc16053f6f4d4b1f3c3b72bfb969cf69a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953520
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4T5eZeab6BjCWhsIYj4k8M.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4T5eZeab6BjCWhsIYj4k8M
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x84e164eb982d8b87a5d8cb3664a33fffc16053f6f4d4b1f3c3b72bfb969cf69a","isrc":"USHM22103158","name":"Noche Oscura","registered_at":"2026-06-10T18:29:28Z","spotify_id":"4T5eZeab6BjCWhsIYj4k8M","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e164eb982d8b87a5d8cb3664a33fffc16053f6f4d4b1f3c3b72bfb969cf69a. 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/4T5eZeab6BjCWhsIYj4k8M.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/4T5eZeab6BjCWhsIYj4k8M.
    date published: 2026-06-13T13:32:09Z
    text: {"copyright_id":"0x84e164eb982d8b87a5d8cb3664a33fffc16053f6f4d4b1f3c3b72bfb969cf69a","isrc":"USHM22103158","name":"Noche Oscura","registered_at":"2026-06-10T18:29:28Z","spotify_id":"4T5eZeab6BjCWhsIYj4k8M","type":"track"}
track: Verdugos

Verdugos
type: MusicRecording
duration: PT2M49S
duration ms: 169875
explicit: false
by artist: Kazu
by artist: Sombra Voces Presas
in album: El Lado Oscuro del Prisma
  type: MusicAlbum
  date published: 2021-05-14
isrc code: USHM22103159

Frío
type: MusicAlbum
date published: 2024-03-29
track: Frío
  type: MusicRecording
  duration: PT2M0S
  duration ms: 120829
  explicit: false
  by artist: Kazu
  in album: Frío
    type: MusicAlbum
    date published: 2024-03-29
  isrc code: QZGLS2419245
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-23T08:23:52+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x80801124c6bf68f27498ceb1ded5d093df52bc56807600142e02223381513d26
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7FiyVsNYN2svRFrHthH7pm.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7FiyVsNYN2svRFrHthH7pm
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x80801124c6bf68f27498ceb1ded5d093df52bc56807600142e02223381513d26","isrc":"QZGLS2419245","name":"Frío","registered_at":"2026-06-23T08:23:52Z","spotify_id":"7FiyVsNYN2svRFrHthH7pm","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80801124c6bf68f27498ceb1ded5d093df52bc56807600142e02223381513d26. 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/7FiyVsNYN2svRFrHthH7pm.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/7FiyVsNYN2svRFrHthH7pm.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0x80801124c6bf68f27498ceb1ded5d093df52bc56807600142e02223381513d26","isrc":"QZGLS2419245","name":"Frío","registered_at":"2026-06-23T08:23:52Z","spotify_id":"7FiyVsNYN2svRFrHthH7pm","type":"track"}

Blanco Oscuro
type: MusicAlbum
date published: 2024-03-15
track: Blanco Oscuro
  type: MusicRecording
  duration: PT3M16S
  duration ms: 196136
  explicit: false
  by artist: Kazu
  in album: Blanco Oscuro
    type: MusicAlbum
    date published: 2024-03-15
  isrc code: QZGLM2440996
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T18:25:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x63a2b0fca241c3a1df8380e2224453230bc351954ddae91de91b71f1e9a49ab2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7tmK35DhpplFJuekzxTWf3.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7tmK35DhpplFJuekzxTWf3
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x63a2b0fca241c3a1df8380e2224453230bc351954ddae91de91b71f1e9a49ab2","isrc":"QZGLM2440996","name":"Blanco Oscuro","registered_at":"2026-06-10T18:25:07Z","spotify_id":"7tmK35DhpplFJuekzxTWf3","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a2b0fca241c3a1df8380e2224453230bc351954ddae91de91b71f1e9a49ab2. 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/7tmK35DhpplFJuekzxTWf3.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/7tmK35DhpplFJuekzxTWf3.
    date published: 2026-06-13T17:25:41Z
    text: {"copyright_id":"0x63a2b0fca241c3a1df8380e2224453230bc351954ddae91de91b71f1e9a49ab2","isrc":"QZGLM2440996","name":"Blanco Oscuro","registered_at":"2026-06-10T18:25:07Z","spotify_id":"7tmK35DhpplFJuekzxTWf3","type":"track"}

Sol de Media Noche
type: MusicAlbum
date published: 2024-02-16
track: Sol de Media Noche
  type: MusicRecording
  duration: PT2M34S
  duration ms: 154261
  explicit: false
  by artist: Kazu
  in album: Sol de Media Noche
    type: MusicAlbum
    date published: 2024-02-16
  isrc code: QZ5AB2442610
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T05:10:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc9f9821db68989488741634ae5fbf5c7325ea550f8b4954801615ea6d7876b18
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2KwtdjfpX6duIuEMVW9HPz.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2KwtdjfpX6duIuEMVW9HPz
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xc9f9821db68989488741634ae5fbf5c7325ea550f8b4954801615ea6d7876b18","isrc":"QZ5AB2442610","name":"Sol de Media Noche","registered_at":"2026-06-09T05:10:39Z","spotify_id":"2KwtdjfpX6duIuEMVW9HPz","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f9821db68989488741634ae5fbf5c7325ea550f8b4954801615ea6d7876b18. 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/2KwtdjfpX6duIuEMVW9HPz.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/2KwtdjfpX6duIuEMVW9HPz.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0xc9f9821db68989488741634ae5fbf5c7325ea550f8b4954801615ea6d7876b18","isrc":"QZ5AB2442610","name":"Sol de Media Noche","registered_at":"2026-06-09T05:10:39Z","spotify_id":"2KwtdjfpX6duIuEMVW9HPz","type":"track"}

Session 1
type: MusicAlbum
date published: 2024-01-26
track: Session 1
  type: MusicRecording
  duration: PT2M4S
  duration ms: 124843
  explicit: false
  by artist: Kazu
  by artist: Magios
  in album: Session 1
    type: MusicAlbum
    date published: 2024-01-26
  isrc code: QZZ972409331
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T15:28:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb4d5f4e5f46c71ce692fe7c6ddf234cc4622d3733f0387495694b9eb14c1cbe4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/0xdCVZ34yWHuO6CFWqJdbR.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0xdCVZ34yWHuO6CFWqJdbR
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xb4d5f4e5f46c71ce692fe7c6ddf234cc4622d3733f0387495694b9eb14c1cbe4","isrc":"QZZ972409331","name":"Session 1","registered_at":"2026-06-24T15:28:11Z","spotify_id":"0xdCVZ34yWHuO6CFWqJdbR","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d5f4e5f46c71ce692fe7c6ddf234cc4622d3733f0387495694b9eb14c1cbe4. 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/0xdCVZ34yWHuO6CFWqJdbR.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/0xdCVZ34yWHuO6CFWqJdbR.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0xb4d5f4e5f46c71ce692fe7c6ddf234cc4622d3733f0387495694b9eb14c1cbe4","isrc":"QZZ972409331","name":"Session 1","registered_at":"2026-06-24T15:28:11Z","spotify_id":"0xdCVZ34yWHuO6CFWqJdbR","type":"track"}

Palabra
type: MusicAlbum
date published: 2023-12-08
track: Palabra
  type: MusicRecording
  duration: PT3M39S
  duration ms: 219585
  explicit: false
  by artist: Kazu
  by artist: Sabue
  in album: Palabra
    type: MusicAlbum
    date published: 2023-12-08
  isrc code: QZW9L2357360
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T20:57:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x85e5ca8278cd104dd786f6418e04d577142f70645cdd7580b6f63b3ee1f1340c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4rXeFxhF7emzd79lJtLkhX.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4rXeFxhF7emzd79lJtLkhX
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e5ca8278cd104dd786f6418e04d577142f70645cdd7580b6f63b3ee1f1340c. 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/4rXeFxhF7emzd79lJtLkhX.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/4rXeFxhF7emzd79lJtLkhX.
    date published: 2026-06-13T15:41:10Z

La Bendición del Diablo
type: MusicAlbum
date published: 2023-11-03
track: La Bendición del Diablo
  type: MusicRecording
  duration: PT2M9S
  duration ms: 129220
  explicit: false
  by artist: Kazu
  in album: La Bendición del Diablo
    type: MusicAlbum
    date published: 2023-11-03
  isrc code: QZW9K2358177
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T05:00:15+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x73194e69c386e5b79e20917f2a42a0c4a981ff5cdf106128b6e2f4b7118c8e35
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/62aguTFL0LDCjJyBJkjfBL.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/62aguTFL0LDCjJyBJkjfBL
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x73194e69c386e5b79e20917f2a42a0c4a981ff5cdf106128b6e2f4b7118c8e35","isrc":"QZW9K2358177","name":"La Bendición del Diablo","registered_at":"2026-06-10T05:00:15Z","spotify_id":"62aguTFL0LDCjJyBJkjfBL","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73194e69c386e5b79e20917f2a42a0c4a981ff5cdf106128b6e2f4b7118c8e35. 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/62aguTFL0LDCjJyBJkjfBL.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/62aguTFL0LDCjJyBJkjfBL.
    date published: 2026-06-13T17:25:41Z
    text: {"copyright_id":"0x73194e69c386e5b79e20917f2a42a0c4a981ff5cdf106128b6e2f4b7118c8e35","isrc":"QZW9K2358177","name":"La Bendición del Diablo","registered_at":"2026-06-10T05:00:15Z","spotify_id":"62aguTFL0LDCjJyBJkjfBL","type":"track"}

La Forma De Mis Sueños
type: MusicAlbum
date published: 2023-09-22
track: La Forma De Mis Sueños
  type: MusicRecording
  duration: PT3M10S
  duration ms: 190653
  explicit: false
  by artist: Kazu
  in album: La Forma De Mis Sueños
    type: MusicAlbum
    date published: 2023-09-22
  isrc code: QM3DF2283937
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-05T21:57:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbe386bc7695f61b97b8cb1533ed8cf83202317e7442bcad68c856673e7d51e17
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3u9nKzyJr9R69elI61JoNT.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3u9nKzyJr9R69elI61JoNT
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xbe386bc7695f61b97b8cb1533ed8cf83202317e7442bcad68c856673e7d51e17","isrc":"QM3DF2283937","name":"La Forma De Mis Sueños","registered_at":"2026-06-05T21:57:39Z","spotify_id":"3u9nKzyJr9R69elI61JoNT","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe386bc7695f61b97b8cb1533ed8cf83202317e7442bcad68c856673e7d51e17. 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/3u9nKzyJr9R69elI61JoNT.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/3u9nKzyJr9R69elI61JoNT.
    date published: 2026-06-13T17:25:41Z
    text: {"copyright_id":"0xbe386bc7695f61b97b8cb1533ed8cf83202317e7442bcad68c856673e7d51e17","isrc":"QM3DF2283937","name":"La Forma De Mis Sueños","registered_at":"2026-06-05T21:57:39Z","spotify_id":"3u9nKzyJr9R69elI61JoNT","type":"track"}

Masacre En El Jardín
type: MusicAlbum
date published: 2023-07-21
track: El Manjar De Las Sobras
  type: MusicRecording
  duration: PT2M13S
  duration ms: 133406
  explicit: false
  by artist: Kazu
  in album: Masacre En El Jardín
    type: MusicAlbum
    date published: 2023-07-21
  isrc code: QM3DF2244443
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T16:43:47+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x937b1a08a6e88a13aad7681d1e56d9d52be9955385fc3227ff020ac3fcf50739
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7uwYh2VIj2qCb8tlQEWryA.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7uwYh2VIj2qCb8tlQEWryA
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x937b1a08a6e88a13aad7681d1e56d9d52be9955385fc3227ff020ac3fcf50739","isrc":"QM3DF2244443","name":"El Manjar De Las Sobras","registered_at":"2026-06-18T16:43:47Z","spotify_id":"7uwYh2VIj2qCb8tlQEWryA","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937b1a08a6e88a13aad7681d1e56d9d52be9955385fc3227ff020ac3fcf50739. 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/7uwYh2VIj2qCb8tlQEWryA.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/7uwYh2VIj2qCb8tlQEWryA.
    date published: 2026-07-02T03:30:09Z
    text: {"copyright_id":"0x937b1a08a6e88a13aad7681d1e56d9d52be9955385fc3227ff020ac3fcf50739","isrc":"QM3DF2244443","name":"El Manjar De Las Sobras","registered_at":"2026-06-18T16:43:47Z","spotify_id":"7uwYh2VIj2qCb8tlQEWryA","type":"track"}
track: Periplo
  type: MusicRecording
  duration: PT6M51S
  duration ms: 411251
  explicit: false
  by artist: Kazu
  by artist: Ziferk Rap Wasay
  in album: Masacre En El Jardín
    type: MusicAlbum
    date published: 2023-07-21
  isrc code: QM3DF2244445
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T18:58:15+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf321f28cbe5813fae66354193053a85ab2b1251564e3ed4e053d8d27ca90313f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7atc1xQmBhWhF7WGNJb5Il.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7atc1xQmBhWhF7WGNJb5Il
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf321f28cbe5813fae66354193053a85ab2b1251564e3ed4e053d8d27ca90313f. 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/7atc1xQmBhWhF7WGNJb5Il.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/7atc1xQmBhWhF7WGNJb5Il.
    date published: 2026-06-13T15:41:10Z
track: El Peor De Los Personajes
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221397
  explicit: false
  by artist: Kazu
  in album: Masacre En El Jardín
    type: MusicAlbum
    date published: 2023-07-21
  isrc code: QM3DF2244446
track: Los Mil Sueños
  type: MusicRecording
  duration: PT3M37S
  duration ms: 217301
  explicit: false
  by artist: Kazu
  by artist: Ronk El Piano
  in album: Masacre En El Jardín
    type: MusicAlbum
    date published: 2023-07-21
  isrc code: QM3DF2244447
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-11T12:05:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xadbf3912030f89e1afa67e18a8a3114e563332bbee4b0d643bcb0fa64dc98bf4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953520
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2Rh6vK24zqYDl7ifnnWTtD.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Rh6vK24zqYDl7ifnnWTtD
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xadbf3912030f89e1afa67e18a8a3114e563332bbee4b0d643bcb0fa64dc98bf4","isrc":"QM3DF2244447","name":"Los Mil Sueños","registered_at":"2026-06-11T12:05:17Z","spotify_id":"2Rh6vK24zqYDl7ifnnWTtD","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbf3912030f89e1afa67e18a8a3114e563332bbee4b0d643bcb0fa64dc98bf4. 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/2Rh6vK24zqYDl7ifnnWTtD.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/2Rh6vK24zqYDl7ifnnWTtD.
    date published: 2026-06-13T13:32:09Z
    text: {"copyright_id":"0xadbf3912030f89e1afa67e18a8a3114e563332bbee4b0d643bcb0fa64dc98bf4","isrc":"QM3DF2244447","name":"Los Mil Sueños","registered_at":"2026-06-11T12:05:17Z","spotify_id":"2Rh6vK24zqYDl7ifnnWTtD","type":"track"}
track: La Fe Maldita
  type: MusicRecording
  duration: PT3M47S
  duration ms: 227840
  explicit: false
  by artist: Kazu
  in album: Masacre En El Jardín
    type: MusicAlbum
    date published: 2023-07-21
  isrc code: QM3DF2241933
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T02:42:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0fba00d3714522585d8f49877f3ed31f919ab79b244cb85b70b841a8ff907897
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957120
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/41Jx6V1l24y9xKFiplx0Sz.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/41Jx6V1l24y9xKFiplx0Sz
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x0fba00d3714522585d8f49877f3ed31f919ab79b244cb85b70b841a8ff907897","isrc":"QM3DF2241933","name":"La Fe Maldita","registered_at":"2026-06-18T02:42:27Z","spotify_id":"41Jx6V1l24y9xKFiplx0Sz","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fba00d3714522585d8f49877f3ed31f919ab79b244cb85b70b841a8ff907897. 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/41Jx6V1l24y9xKFiplx0Sz.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/41Jx6V1l24y9xKFiplx0Sz.
    date published: 2026-07-08T03:22:41Z
    text: {"copyright_id":"0x0fba00d3714522585d8f49877f3ed31f919ab79b244cb85b70b841a8ff907897","isrc":"QM3DF2241933","name":"La Fe Maldita","registered_at":"2026-06-18T02:42:27Z","spotify_id":"41Jx6V1l24y9xKFiplx0Sz","type":"track"}
track: Sevicia

Sevicia
type: MusicRecording
duration: PT3M12S
duration ms: 192754
explicit: false
by artist: Kazu
by artist: Thomas Parr
in album: Masacre En El Jardín
  type: MusicAlbum
  date published: 2023-07-21
isrc code: QM3DF2244449
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T08:21:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xec36d7d227d636a8261d5ae5a7cf650c14a99c8b7aa5ed84faa78b46f3a3f536
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4JEv4PYs8dxckUKc1oxiAH.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4JEv4PYs8dxckUKc1oxiAH
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec36d7d227d636a8261d5ae5a7cf650c14a99c8b7aa5ed84faa78b46f3a3f536. 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/4JEv4PYs8dxckUKc1oxiAH.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/4JEv4PYs8dxckUKc1oxiAH.
  date published: 2026-07-02T03:55:08Z

El Peor De Los Personajes
type: MusicAlbum
date published: 2023-07-14
track: El Peor De Los Personajes
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221397
  explicit: false
  by artist: Kazu
  in album: El Peor De Los Personajes
    type: MusicAlbum
    date published: 2023-07-14
  isrc code: QM3DF2244442
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-05T22:02:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x59f35b2d83d33e9bf409fc2c6a52b2c768e6d3241ec3e8e4d34dc4174025018e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3zoNqIUFnNtLY5bNBV99FE.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3zoNqIUFnNtLY5bNBV99FE
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x59f35b2d83d33e9bf409fc2c6a52b2c768e6d3241ec3e8e4d34dc4174025018e","isrc":"QM3DF2244442","name":"El Peor De Los Personajes","registered_at":"2026-06-05T22:02:33Z","spotify_id":"3zoNqIUFnNtLY5bNBV99FE","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f35b2d83d33e9bf409fc2c6a52b2c768e6d3241ec3e8e4d34dc4174025018e. 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/3zoNqIUFnNtLY5bNBV99FE.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/3zoNqIUFnNtLY5bNBV99FE.
    date published: 2026-06-13T17:25:41Z
    text: {"copyright_id":"0x59f35b2d83d33e9bf409fc2c6a52b2c768e6d3241ec3e8e4d34dc4174025018e","isrc":"QM3DF2244442","name":"El Peor De Los Personajes","registered_at":"2026-06-05T22:02:33Z","spotify_id":"3zoNqIUFnNtLY5bNBV99FE","type":"track"}

La Fe Maldita
type: MusicAlbum
date published: 2023-06-30
track: La Fe Maldita
  type: MusicRecording
  duration: PT3M47S
  duration ms: 227840
  explicit: false
  by artist: Kazu
  in album: La Fe Maldita
    type: MusicAlbum
    date published: 2023-06-30
  isrc code: QM3DF2241933
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T02:42:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0fba00d3714522585d8f49877f3ed31f919ab79b244cb85b70b841a8ff907897
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/15nTfEfaFyXNYr29ZzghPO.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/15nTfEfaFyXNYr29ZzghPO
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x0fba00d3714522585d8f49877f3ed31f919ab79b244cb85b70b841a8ff907897","isrc":"QM3DF2241933","name":"La Fe Maldita","registered_at":"2026-06-18T02:42:27Z","spotify_id":"15nTfEfaFyXNYr29ZzghPO","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fba00d3714522585d8f49877f3ed31f919ab79b244cb85b70b841a8ff907897. 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/15nTfEfaFyXNYr29ZzghPO.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/15nTfEfaFyXNYr29ZzghPO.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0x0fba00d3714522585d8f49877f3ed31f919ab79b244cb85b70b841a8ff907897","isrc":"QM3DF2241933","name":"La Fe Maldita","registered_at":"2026-06-18T02:42:27Z","spotify_id":"15nTfEfaFyXNYr29ZzghPO","type":"track"}

Blindaje
type: MusicAlbum
date published: 2023-06-30
track: Blindaje
  type: MusicRecording
  duration: PT3M0S
  duration ms: 180932
  explicit: false
  by artist: Thomas Parr
  by artist: Kazu
  in album: Blindaje
    type: MusicAlbum
    date published: 2023-06-30
  isrc code: QZNJW2326935

Como un Acto Divino
type: MusicAlbum
date published: 2023-05-05
track: Como un Acto Divino
  type: MusicRecording
  duration: PT1M47S
  duration ms: 107666
  explicit: false
  by artist: Kazu
  in album: Como un Acto Divino
    type: MusicAlbum
    date published: 2023-05-05
  isrc code: QZMZ92342499
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T08:06:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x79f8e63c2fce063d0d0114dba871b207abe128b8ed62f586bb166baef5d5fc03
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953528
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3sRgSwtKmN5CBuDqf5jxh2.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3sRgSwtKmN5CBuDqf5jxh2
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x79f8e63c2fce063d0d0114dba871b207abe128b8ed62f586bb166baef5d5fc03","isrc":"QZMZ92342499","name":"Como un Acto Divino","registered_at":"2026-06-07T08:06:45Z","spotify_id":"3sRgSwtKmN5CBuDqf5jxh2","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f8e63c2fce063d0d0114dba871b207abe128b8ed62f586bb166baef5d5fc03. 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/3sRgSwtKmN5CBuDqf5jxh2.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/3sRgSwtKmN5CBuDqf5jxh2.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0x79f8e63c2fce063d0d0114dba871b207abe128b8ed62f586bb166baef5d5fc03","isrc":"QZMZ92342499","name":"Como un Acto Divino","registered_at":"2026-06-07T08:06:45Z","spotify_id":"3sRgSwtKmN5CBuDqf5jxh2","type":"track"}

Noches Frías
type: MusicAlbum
date published: 2023-03-22
track: Noches Frías
  type: MusicRecording
  duration: PT3M37S
  duration ms: 217662
  explicit: false
  by artist: Turek Hem
  by artist: Kazu
  in album: Noches Frías
    type: MusicAlbum
    date published: 2023-03-22
  isrc code: USANG2281366

Entre la Espada y la Pared
type: MusicAlbum
date published: 2023-03-16
track: Entre la Espada y la Pared
  type: MusicRecording
  duration: PT3M56S
  duration ms: 236204
  explicit: false
  by artist: Almanegra
  by artist: Kazu
  in album: Entre la Espada y la Pared
    type: MusicAlbum
    date published: 2023-03-16
  isrc code: USANG2277189
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T02:42:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfaa4c459763da454d5f85f21a96dc35ce07a5ecc942b0380b8e6a2a08a732ac5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/5oHvptMGqbC0LZzOYwyI3q.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5oHvptMGqbC0LZzOYwyI3q
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xfaa4c459763da454d5f85f21a96dc35ce07a5ecc942b0380b8e6a2a08a732ac5","isrc":"USANG2277189","name":"Entre la Espada y la Pared","registered_at":"2026-06-18T02:42:37Z","spotify_id":"5oHvptMGqbC0LZzOYwyI3q","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa4c459763da454d5f85f21a96dc35ce07a5ecc942b0380b8e6a2a08a732ac5. 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/5oHvptMGqbC0LZzOYwyI3q.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/5oHvptMGqbC0LZzOYwyI3q.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0xfaa4c459763da454d5f85f21a96dc35ce07a5ecc942b0380b8e6a2a08a732ac5","isrc":"USANG2277189","name":"Entre la Espada y la Pared","registered_at":"2026-06-18T02:42:37Z","spotify_id":"5oHvptMGqbC0LZzOYwyI3q","type":"track"}

Jamas por Siempre
type: MusicAlbum
date published: 2023-03-03
track: Jamas por Siempre
  type: MusicRecording
  duration: PT3M7S
  duration ms: 187265
  explicit: false
  by artist: Kazu
  by artist: Almanegra
  in album: Jamas por Siempre
    type: MusicAlbum
    date published: 2023-03-03
  isrc code: QZ5AB2364706
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T07:48:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x520a7b63cfe8be5facb66883931ca361aaa927e68743615ea3d8e863305d8bdf
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2RbRkM3KCvRqeQMISc5ylr.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2RbRkM3KCvRqeQMISc5ylr
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x520a7b63cfe8be5facb66883931ca361aaa927e68743615ea3d8e863305d8bdf","isrc":"QZ5AB2364706","name":"Jamas por Siempre","registered_at":"2026-06-20T07:48:03Z","spotify_id":"2RbRkM3KCvRqeQMISc5ylr","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520a7b63cfe8be5facb66883931ca361aaa927e68743615ea3d8e863305d8bdf. 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/2RbRkM3KCvRqeQMISc5ylr.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/2RbRkM3KCvRqeQMISc5ylr.
    date published: 2026-07-02T03:30:09Z
    text: {"copyright_id":"0x520a7b63cfe8be5facb66883931ca361aaa927e68743615ea3d8e863305d8bdf","isrc":"QZ5AB2364706","name":"Jamas por Siempre","registered_at":"2026-06-20T07:48:03Z","spotify_id":"2RbRkM3KCvRqeQMISc5ylr","type":"track"}

Sentí Caer
type: MusicAlbum
date published: 2023-02-09
track: Sentí Caer
  type: MusicRecording
  duration: PT5M38S
  duration ms: 338184
  explicit: false
  by artist: El Nolan
  by artist: Kazu
  in album: Sentí Caer
    type: MusicAlbum
    date published: 2023-02-09
  isrc code: QZ5AB2323235
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T15:28:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3e7550ad828dde083dd94e5b4e4f1f99842574fdaff0001dd9931aa8cd210ef7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/4oh0ShrgL8Tg8uEZk4xpJm.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4oh0ShrgL8Tg8uEZk4xpJm
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x3e7550ad828dde083dd94e5b4e4f1f99842574fdaff0001dd9931aa8cd210ef7","isrc":"QZ5AB2323235","name":"Sentí Caer","registered_at":"2026-06-24T15:28:44Z","spotify_id":"4oh0ShrgL8Tg8uEZk4xpJm","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7550ad828dde083dd94e5b4e4f1f99842574fdaff0001dd9931aa8cd210ef7. 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/4oh0ShrgL8Tg8uEZk4xpJm.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/4oh0ShrgL8Tg8uEZk4xpJm.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0x3e7550ad828dde083dd94e5b4e4f1f99842574fdaff0001dd9931aa8cd210ef7","isrc":"QZ5AB2323235","name":"Sentí Caer","registered_at":"2026-06-24T15:28:44Z","spotify_id":"4oh0ShrgL8Tg8uEZk4xpJm","type":"track"}

Paisaje de Mi Herida
type: MusicAlbum
date published: 2022-08-05
track: Paisaje de Mi Herida
  type: MusicRecording
  duration: PT3M2S
  duration ms: 182076
  explicit: false
  by artist: Kazu
  by artist: Penyair
  in album: Paisaje de Mi Herida
    type: MusicAlbum
    date published: 2022-08-05
  isrc code: QZNJX2223057
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T15:28:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcdc25d28f187f8579c0a88e0e0905669b6114500c70a5d1d2a724f3cfea5ac3c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953513
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953513
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6Joz98sQLRpHWoHNgl8vQy.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6Joz98sQLRpHWoHNgl8vQy
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:47:07Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xcdc25d28f187f8579c0a88e0e0905669b6114500c70a5d1d2a724f3cfea5ac3c","isrc":"QZNJX2223057","name":"Paisaje de Mi Herida","registered_at":"2026-06-04T15:28:00Z","spotify_id":"6Joz98sQLRpHWoHNgl8vQy","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc25d28f187f8579c0a88e0e0905669b6114500c70a5d1d2a724f3cfea5ac3c. 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/6Joz98sQLRpHWoHNgl8vQy.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/6Joz98sQLRpHWoHNgl8vQy.
    date published: 2026-06-13T12:47:07Z
    text: {"copyright_id":"0xcdc25d28f187f8579c0a88e0e0905669b6114500c70a5d1d2a724f3cfea5ac3c","isrc":"QZNJX2223057","name":"Paisaje de Mi Herida","registered_at":"2026-06-04T15:28:00Z","spotify_id":"6Joz98sQLRpHWoHNgl8vQy","type":"track"}

Se
type: MusicAlbum
date published: 2022-07-22
track: Se
  type: MusicRecording
  duration: PT2M51S
  duration ms: 171018
  explicit: false
  by artist: Kazu
  in album: Se
    type: MusicAlbum
    date published: 2022-07-22
  isrc code: QZNJX2223176

En Medio del Miedo
type: MusicAlbum
date published: 2022-05-27
track: En Medio del Miedo
  type: MusicRecording
  duration: PT2M32S
  duration ms: 152362
  explicit: false
  by artist: Kazu
  in album: En Medio del Miedo
    type: MusicAlbum
    date published: 2022-05-27
  isrc code: USDY42160513
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-05T22:00:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x17a115613f5094a326bec8f4559fa353bd63c4dd087044308c128e358917a239
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3t2hj4m10GoaNHRaFwMj2O.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3t2hj4m10GoaNHRaFwMj2O
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x17a115613f5094a326bec8f4559fa353bd63c4dd087044308c128e358917a239","isrc":"USDY42160513","name":"En Medio del Miedo","registered_at":"2026-06-05T22:00:45Z","spotify_id":"3t2hj4m10GoaNHRaFwMj2O","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a115613f5094a326bec8f4559fa353bd63c4dd087044308c128e358917a239. 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/3t2hj4m10GoaNHRaFwMj2O.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/3t2hj4m10GoaNHRaFwMj2O.
    date published: 2026-06-13T17:25:41Z
    text: {"copyright_id":"0x17a115613f5094a326bec8f4559fa353bd63c4dd087044308c128e358917a239","isrc":"USDY42160513","name":"En Medio del Miedo","registered_at":"2026-06-05T22:00:45Z","spotify_id":"3t2hj4m10GoaNHRaFwMj2O","type":"track"}

Droga
type: MusicAlbum
date published: 2022-04-29
track: Droga
  type: MusicRecording
  duration: PT3M1S
  duration ms: 181557
  explicit: false
  by artist: Kazu
  in album: Droga
    type: MusicAlbum
    date published: 2022-04-29
  isrc code: QZHZ42226650
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T02:42:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4634ff05c8b1df4cddc8f83a29292855d97acb16c810f4b20ab99a7f58ccd1f3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/7ukTK1BhePR1rqYFZ4fPYB.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7ukTK1BhePR1rqYFZ4fPYB
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4634ff05c8b1df4cddc8f83a29292855d97acb16c810f4b20ab99a7f58ccd1f3. 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/7ukTK1BhePR1rqYFZ4fPYB.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/7ukTK1BhePR1rqYFZ4fPYB.
    date published: 2026-07-02T03:55:08Z

Suerte
type: MusicAlbum
date published: 2022-04-01
track: Suerte
  type: MusicRecording
  duration: PT3M32S
  duration ms: 212571
  explicit: false
  by artist: Viva Lives
  by artist: Kazu
  in album: Suerte
    type: MusicAlbum
    date published: 2022-04-01
  isrc code: QZHZ32208404
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T08:55:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8901e22a5cd1a987d934d68d8379a2d4f9384091a6846f02d41a5ede4b05ebbc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956351
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956351
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/0rCrLT2nwm1y6s2tEZBPc7.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0rCrLT2nwm1y6s2tEZBPc7
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T11:38:34Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8901e22a5cd1a987d934d68d8379a2d4f9384091a6846f02d41a5ede4b05ebbc. 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/0rCrLT2nwm1y6s2tEZBPc7.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/0rCrLT2nwm1y6s2tEZBPc7.
    date published: 2026-07-02T11:38:34Z

Como un Poema
type: MusicAlbum
date published: 2022-03-25
track: Como un Poema
  type: MusicRecording
  duration: PT2M59S
  duration ms: 179266
  explicit: false
  by artist: Kazu
  in album: Como un Poema
    type: MusicAlbum
    date published: 2022-03-25
  isrc code: QZGLS2241890
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T11:46:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0870f4f6d6eb3a041e2d6763b76d98107b5e89f136c2b80e187bf9aee7ebeaf4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1ge7Lrom4JzjL9J1CjgLvF.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1ge7Lrom4JzjL9J1CjgLvF
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x0870f4f6d6eb3a041e2d6763b76d98107b5e89f136c2b80e187bf9aee7ebeaf4","isrc":"QZGLS2241890","name":"Como un Poema","registered_at":"2026-06-18T11:46:42Z","spotify_id":"1ge7Lrom4JzjL9J1CjgLvF","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0870f4f6d6eb3a041e2d6763b76d98107b5e89f136c2b80e187bf9aee7ebeaf4. 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/1ge7Lrom4JzjL9J1CjgLvF.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/1ge7Lrom4JzjL9J1CjgLvF.
    date published: 2026-07-02T03:30:09Z
    text: {"copyright_id":"0x0870f4f6d6eb3a041e2d6763b76d98107b5e89f136c2b80e187bf9aee7ebeaf4","isrc":"QZGLS2241890","name":"Como un Poema","registered_at":"2026-06-18T11:46:42Z","spotify_id":"1ge7Lrom4JzjL9J1CjgLvF","type":"track"}

Game
type: MusicAlbum
date published: 2022-02-25
track: Game
  type: MusicRecording
  duration: PT3M7S
  duration ms: 187250
  explicit: false
  by artist: Kazu
  in album: Game
    type: MusicAlbum
    date published: 2022-02-25
  isrc code: QZGLM2287219
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T04:03:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x914e76510af2087f2029080630c7685dc1aa450ca6a12e77d6b52795060707bd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3Qo7C85dVjXfgxIISR0Gzb.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3Qo7C85dVjXfgxIISR0Gzb
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914e76510af2087f2029080630c7685dc1aa450ca6a12e77d6b52795060707bd. 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/3Qo7C85dVjXfgxIISR0Gzb.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/3Qo7C85dVjXfgxIISR0Gzb.
    date published: 2026-06-13T17:25:41Z

Compulsivo
type: MusicAlbum
date published: 2022-01-15
track: Compulsivo
  type: MusicRecording
  duration: PT2M40S
  duration ms: 160049
  explicit: false
  by artist: Kazu
  by artist: Mafia EDP
  in album: Compulsivo
    type: MusicAlbum
    date published: 2022-01-15
  isrc code: US7VG2240791

En la Misma Orilla
type: MusicAlbum
date published: 2021-12-17
track: En la Misma Orilla
  type: MusicRecording
  duration: PT3M20S
  duration ms: 200533
  explicit: false
  by artist: Kazu
  by artist: Dj G Promode
  in album: En la Misma Orilla
    type: MusicAlbum
    date published: 2021-12-17
  isrc code: QZTPX2174258
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T11:24:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8eaf7966b11819671c9bec58b38d2259e57175aad12f23cb570d8635ca33e51f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953513
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953513
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2tNv6eeTO6sPMdQTayUFfb.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2tNv6eeTO6sPMdQTayUFfb
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:47:07Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x8eaf7966b11819671c9bec58b38d2259e57175aad12f23cb570d8635ca33e51f","isrc":"QZTPX2174258","name":"En la Misma Orilla","registered_at":"2026-06-06T11:24:08Z","spotify_id":"2tNv6eeTO6sPMdQTayUFfb","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eaf7966b11819671c9bec58b38d2259e57175aad12f23cb570d8635ca33e51f. 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/2tNv6eeTO6sPMdQTayUFfb.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/2tNv6eeTO6sPMdQTayUFfb.
    date published: 2026-06-13T12:47:07Z
    text: {"copyright_id":"0x8eaf7966b11819671c9bec58b38d2259e57175aad12f23cb570d8635ca33e51f","isrc":"QZTPX2174258","name":"En la Misma Orilla","registered_at":"2026-06-06T11:24:08Z","spotify_id":"2tNv6eeTO6sPMdQTayUFfb","type":"track"}

Dime
type: MusicAlbum
date published: 2021-11-19
track: Dime
  type: MusicRecording
  duration: PT3M10S
  duration ms: 190549
  explicit: false
  by artist: Kazu
  in album: Dime
    type: MusicAlbum
    date published: 2021-11-19
  isrc code: QZNJY2181005
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-19T13:04:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x204be1c764feeb93094773b61175bcac435749be26024da48ecf6e1e1348e526
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6WBtIYxmmlFxj9oAZvWmTJ.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6WBtIYxmmlFxj9oAZvWmTJ
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204be1c764feeb93094773b61175bcac435749be26024da48ecf6e1e1348e526. 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/6WBtIYxmmlFxj9oAZvWmTJ.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/6WBtIYxmmlFxj9oAZvWmTJ.
    date published: 2026-07-02T03:30:09Z

El Precio Infinito
type: MusicAlbum
date published: 2021-11-10
track: El Precio Infinito
  type: MusicRecording
  duration: PT2M50S
  duration ms: 170684
  explicit: false
  by artist: Kazu
  by artist: Mc Kno
  in album: El Precio Infinito
    type: MusicAlbum
    date published: 2021-11-10
  isrc code: QZNJY2145490

Ritmo Cabron
type: MusicAlbum
date published: 2021-09-12
track: Ritmo Cabron
  type: MusicRecording
  duration: PT3M52S
  duration ms: 232300
  explicit: false
  by artist: Kazu
  by artist: Showe
  in album: Ritmo Cabron
    type: MusicAlbum
    date published: 2021-09-12
  isrc code: QZNJX2167356

Elixir
type: MusicAlbum
date published: 2021-05-21
track: Elixir
  type: MusicRecording
  duration: PT4M57S
  duration ms: 297222
  explicit: false
  by artist: Kazu
  in album: Elixir
    type: MusicAlbum
    date published: 2021-05-21
  isrc code: USHM22102975

La Insurrección de Lo Vigente
type: MusicAlbum
date published: 2021-05-07
track: Al Miedo Vivo
  type: MusicRecording
  duration: PT3M30S
  duration ms: 210913
  explicit: false
  by artist: Kazu
  in album: La Insurrección de Lo Vigente
    type: MusicAlbum
    date published: 2021-05-07
  isrc code: USDY42180015
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T14:27:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8497547d0cb977203d30998d8bfde821a7cb1aee8856211834ffe5592c762c66
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953520
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2MjMBRo5kqUYzn8cRj14ni.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2MjMBRo5kqUYzn8cRj14ni
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x8497547d0cb977203d30998d8bfde821a7cb1aee8856211834ffe5592c762c66","isrc":"USDY42180015","name":"Al Miedo Vivo","registered_at":"2026-06-10T14:27:05Z","spotify_id":"2MjMBRo5kqUYzn8cRj14ni","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8497547d0cb977203d30998d8bfde821a7cb1aee8856211834ffe5592c762c66. 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/2MjMBRo5kqUYzn8cRj14ni.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/2MjMBRo5kqUYzn8cRj14ni.
    date published: 2026-06-13T13:32:09Z
    text: {"copyright_id":"0x8497547d0cb977203d30998d8bfde821a7cb1aee8856211834ffe5592c762c66","isrc":"USDY42180015","name":"Al Miedo Vivo","registered_at":"2026-06-10T14:27:05Z","spotify_id":"2MjMBRo5kqUYzn8cRj14ni","type":"track"}
track: Dias de Elogia
  type: MusicRecording
  duration: PT3M31S
  duration ms: 211984
  explicit: false
  by artist: Kazu
  in album: La Insurrección de Lo Vigente
    type: MusicAlbum
    date published: 2021-05-07
  isrc code: USDY42180016
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T23:08:52+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3a530c79344c3ed372cb0cfbfd6adc231dfd60a0e8357a32f2d7666098c5fd4c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956312
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6vjlqrPhcKYZbl84YkTS1D.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6vjlqrPhcKYZbl84YkTS1D
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x3a530c79344c3ed372cb0cfbfd6adc231dfd60a0e8357a32f2d7666098c5fd4c","isrc":"USDY42180016","name":"Dias de Elogia","registered_at":"2026-06-25T23:08:52Z","spotify_id":"6vjlqrPhcKYZbl84YkTS1D","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a530c79344c3ed372cb0cfbfd6adc231dfd60a0e8357a32f2d7666098c5fd4c. 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/6vjlqrPhcKYZbl84YkTS1D.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/6vjlqrPhcKYZbl84YkTS1D.
    date published: 2026-07-02T05:09:12Z
    text: {"copyright_id":"0x3a530c79344c3ed372cb0cfbfd6adc231dfd60a0e8357a32f2d7666098c5fd4c","isrc":"USDY42180016","name":"Dias de Elogia","registered_at":"2026-06-25T23:08:52Z","spotify_id":"6vjlqrPhcKYZbl84YkTS1D","type":"track"}
track: Poema a la Libertad
  type: MusicRecording
  duration: PT3M12S
  duration ms: 192053
  explicit: false
  by artist: Kazu
  in album: La Insurrección de Lo Vigente
    type: MusicAlbum
    date published: 2021-05-07
  isrc code: USDY42180017
track: Insurrección
  type: MusicRecording
  duration: PT4M16S
  duration ms: 256680
  explicit: false
  by artist: Kazu
  in album: La Insurrección de Lo Vigente
    type: MusicAlbum
    date published: 2021-05-07
  isrc code: USDY42180018
track: La Brillante Baratija
  type: MusicRecording
  duration: PT3M13S
  duration ms: 193568
  explicit: false
  by artist: Kazu
  in album: La Insurrección de Lo Vigente
    type: MusicAlbum
    date published: 2021-05-07
  isrc code: USDY42180019
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-11T12:04:43+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8b39b6ec519a54c827e0c3970e4dd7b3869655533c1d8190c1e65d5d7d1b1576
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953520
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3GTblogwCJBRiNxp1k9EvM.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3GTblogwCJBRiNxp1k9EvM
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x8b39b6ec519a54c827e0c3970e4dd7b3869655533c1d8190c1e65d5d7d1b1576","isrc":"USDY42180019","name":"La Brillante Baratija","registered_at":"2026-06-11T12:04:43Z","spotify_id":"3GTblogwCJBRiNxp1k9EvM","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b39b6ec519a54c827e0c3970e4dd7b3869655533c1d8190c1e65d5d7d1b1576. 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/3GTblogwCJBRiNxp1k9EvM.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/3GTblogwCJBRiNxp1k9EvM.
    date published: 2026-06-13T13:32:09Z
    text: {"copyright_id":"0x8b39b6ec519a54c827e0c3970e4dd7b3869655533c1d8190c1e65d5d7d1b1576","isrc":"USDY42180019","name":"La Brillante Baratija","registered_at":"2026-06-11T12:04:43Z","spotify_id":"3GTblogwCJBRiNxp1k9EvM","type":"track"}

Sin Garantía
type: MusicAlbum
date published: 2021-04-30
track: Sin Garantía
  type: MusicRecording
  duration: PT2M47S
  duration ms: 167683
  explicit: false
  by artist: Kazu
  in album: Sin Garantía
    type: MusicAlbum
    date published: 2021-04-30
  isrc code: USDY42175074

Papel Palacio
type: MusicAlbum
date published: 2021-04-23
track: Papel Palacio
  type: MusicRecording
  duration: PT2M49S
  duration ms: 169834
  explicit: false
  by artist: Kazu
  in album: Papel Palacio
    type: MusicAlbum
    date published: 2021-04-23
  isrc code: USDY42160525

El Diablo Bendecido
type: MusicAlbum
date published: 2021-04-23
track: El Diablo Bendecido
  type: MusicRecording
  duration: PT2M16S
  duration ms: 136856
  explicit: false
  by artist: Kazu
  in album: El Diablo Bendecido
    type: MusicAlbum
    date published: 2021-04-23
  isrc code: USDY42153494
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T04:06:47+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9e994690aa66f19f610fb1faa5e86a5a552da4da67b65d23e1ab7a171348616c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/3M5ZKrZJmejrM2sd19QT6A.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3M5ZKrZJmejrM2sd19QT6A
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x9e994690aa66f19f610fb1faa5e86a5a552da4da67b65d23e1ab7a171348616c","isrc":"USDY42153494","name":"El Diablo Bendecido","registered_at":"2026-06-08T04:06:47Z","spotify_id":"3M5ZKrZJmejrM2sd19QT6A","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e994690aa66f19f610fb1faa5e86a5a552da4da67b65d23e1ab7a171348616c. 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/3M5ZKrZJmejrM2sd19QT6A.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/3M5ZKrZJmejrM2sd19QT6A.
    date published: 2026-06-13T17:25:41Z
    text: {"copyright_id":"0x9e994690aa66f19f610fb1faa5e86a5a552da4da67b65d23e1ab7a171348616c","isrc":"USDY42153494","name":"El Diablo Bendecido","registered_at":"2026-06-08T04:06:47Z","spotify_id":"3M5ZKrZJmejrM2sd19QT6A","type":"track"}

Duele
type: MusicAlbum
date published: 2021-04-16
track: Duele
  type: MusicRecording
  duration: PT3M12S
  duration ms: 192123
  explicit: false
  by artist: Kazu
  in album: Duele
    type: MusicAlbum
    date published: 2021-04-16
  isrc code: USDY42118241
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T17:56:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x19ba6d45eaff0d26d5ec06f21f69a28ec6bb3131b917472c9ca050cb96641f4b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953515
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953515
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6CYzE4mjTKui0bxdCploWu.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6CYzE4mjTKui0bxdCploWu
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:53:06Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ba6d45eaff0d26d5ec06f21f69a28ec6bb3131b917472c9ca050cb96641f4b. 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/6CYzE4mjTKui0bxdCploWu.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/6CYzE4mjTKui0bxdCploWu.
    date published: 2026-06-13T12:53:06Z

Roedores
type: MusicAlbum
date published: 2021-04-09
track: Roedores
  type: MusicRecording
  duration: PT5M1S
  duration ms: 301036
  explicit: false
  by artist: Kazu
  by artist: Ziferk Rap Wasay
  in album: Roedores
    type: MusicAlbum
    date published: 2021-04-09
  isrc code: USDY42118240
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T21:07:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbcaee1a8b9e3a24e6033291cb92612732b3458c3eb7dfe902b12a2f3368255f7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953536
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/5tAI1p8s31klMudqZmbW3M.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5tAI1p8s31klMudqZmbW3M
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcaee1a8b9e3a24e6033291cb92612732b3458c3eb7dfe902b12a2f3368255f7. 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/5tAI1p8s31klMudqZmbW3M.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/5tAI1p8s31klMudqZmbW3M.
    date published: 2026-06-13T17:25:41Z

Sin Trampa
type: MusicAlbum
date published: 2024-06-28
track: Sin Trampa
  type: MusicRecording
  duration: PT3M3S
  duration ms: 183082
  explicit: false
  by artist: Kazu
  by artist: Mseco
  in album: Sin Trampa
    type: MusicAlbum
    date published: 2024-06-28
  isrc code: QZNJX2485277
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-24T13:47:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf8584bfdb7c138e8061d93262fc61045a545a77104e739d5b9cb317a893c1cb3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956312
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/6MG8yVOT338IeMrnYgrteG.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6MG8yVOT338IeMrnYgrteG
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xf8584bfdb7c138e8061d93262fc61045a545a77104e739d5b9cb317a893c1cb3","isrc":"QZNJX2485277","name":"Sin Trampa","registered_at":"2026-06-24T13:47:48Z","spotify_id":"6MG8yVOT338IeMrnYgrteG","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8584bfdb7c138e8061d93262fc61045a545a77104e739d5b9cb317a893c1cb3. 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/6MG8yVOT338IeMrnYgrteG.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/6MG8yVOT338IeMrnYgrteG.
    date published: 2026-07-02T05:09:12Z
    text: {"copyright_id":"0xf8584bfdb7c138e8061d93262fc61045a545a77104e739d5b9cb317a893c1cb3","isrc":"QZNJX2485277","name":"Sin Trampa","registered_at":"2026-06-24T13:47:48Z","spotify_id":"6MG8yVOT338IeMrnYgrteG","type":"track"}

En Medio del Miedo
type: MusicRecording
duration: PT2M32S
duration ms: 152362
explicit: false
by artist: Kazu
in album: En Medio del Miedo
  type: MusicAlbum
  date published: 2022-05-27
isrc code: USDY42160513
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T22:00:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x17a115613f5094a326bec8f4559fa353bd63c4dd087044308c128e358917a239
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3t2hj4m10GoaNHRaFwMj2O.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3t2hj4m10GoaNHRaFwMj2O
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x17a115613f5094a326bec8f4559fa353bd63c4dd087044308c128e358917a239","isrc":"USDY42160513","name":"En Medio del Miedo","registered_at":"2026-06-05T22:00:45Z","spotify_id":"3t2hj4m10GoaNHRaFwMj2O","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a115613f5094a326bec8f4559fa353bd63c4dd087044308c128e358917a239. 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/3t2hj4m10GoaNHRaFwMj2O.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/3t2hj4m10GoaNHRaFwMj2O.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x17a115613f5094a326bec8f4559fa353bd63c4dd087044308c128e358917a239","isrc":"USDY42160513","name":"En Medio del Miedo","registered_at":"2026-06-05T22:00:45Z","spotify_id":"3t2hj4m10GoaNHRaFwMj2O","type":"track"}

Session 1
type: MusicRecording
duration: PT2M4S
duration ms: 124843
explicit: false
by artist: Kazu
by artist: Magios
in album: Session 1
  type: MusicAlbum
  date published: 2024-01-26
isrc code: QZZ972409331
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T15:28:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb4d5f4e5f46c71ce692fe7c6ddf234cc4622d3733f0387495694b9eb14c1cbe4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0xdCVZ34yWHuO6CFWqJdbR.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0xdCVZ34yWHuO6CFWqJdbR
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb4d5f4e5f46c71ce692fe7c6ddf234cc4622d3733f0387495694b9eb14c1cbe4","isrc":"QZZ972409331","name":"Session 1","registered_at":"2026-06-24T15:28:11Z","spotify_id":"0xdCVZ34yWHuO6CFWqJdbR","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d5f4e5f46c71ce692fe7c6ddf234cc4622d3733f0387495694b9eb14c1cbe4. 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/0xdCVZ34yWHuO6CFWqJdbR.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/0xdCVZ34yWHuO6CFWqJdbR.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xb4d5f4e5f46c71ce692fe7c6ddf234cc4622d3733f0387495694b9eb14c1cbe4","isrc":"QZZ972409331","name":"Session 1","registered_at":"2026-06-24T15:28:11Z","spotify_id":"0xdCVZ34yWHuO6CFWqJdbR","type":"track"}

Droga
type: MusicRecording
duration: PT3M1S
duration ms: 181557
explicit: false
by artist: Kazu
in album: Droga
  type: MusicAlbum
  date published: 2022-04-29
isrc code: QZHZ42226650
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T02:42:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4634ff05c8b1df4cddc8f83a29292855d97acb16c810f4b20ab99a7f58ccd1f3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7ukTK1BhePR1rqYFZ4fPYB.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7ukTK1BhePR1rqYFZ4fPYB
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4634ff05c8b1df4cddc8f83a29292855d97acb16c810f4b20ab99a7f58ccd1f3. 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/7ukTK1BhePR1rqYFZ4fPYB.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/7ukTK1BhePR1rqYFZ4fPYB.
  date published: 2026-07-02T03:55:08Z

Barrio Caliente
type: MusicRecording
duration: PT3M8S
duration ms: 188750
explicit: false
by artist: Chato 473
by artist: Kazu
in album: Barrio Caliente
  type: MusicAlbum
  date published: 2023-07-19
isrc code: QM3DF2259068

Sin Pesar
type: MusicRecording
duration: PT3M3S
duration ms: 183015
explicit: false
by artist: Iyhon Secuaz
by artist: Kazu
by artist: Dee Stebang
in album: Sin Pesar
  type: MusicAlbum
  date published: 2023-06-06
isrc code: QZNJV2382762

La Voz del Alter Ego
type: MusicRecording
duration: PT1M21S
duration ms: 81894
explicit: false
by artist: Kazu
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T12:04:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf5b2e6fb63800476ae805017f3a7ac7a00c9757c82ee8537e1035ad15a396fe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5PUYC07TeCkufRe9tGnOwg.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5PUYC07TeCkufRe9tGnOwg
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xaf5b2e6fb63800476ae805017f3a7ac7a00c9757c82ee8537e1035ad15a396fe","isrc":"USHM22147006","name":"La Voz del Alter Ego","registered_at":"2026-06-11T12:04:51Z","spotify_id":"5PUYC07TeCkufRe9tGnOwg","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5b2e6fb63800476ae805017f3a7ac7a00c9757c82ee8537e1035ad15a396fe. 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/5PUYC07TeCkufRe9tGnOwg.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/5PUYC07TeCkufRe9tGnOwg.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0xaf5b2e6fb63800476ae805017f3a7ac7a00c9757c82ee8537e1035ad15a396fe","isrc":"USHM22147006","name":"La Voz del Alter Ego","registered_at":"2026-06-11T12:04:51Z","spotify_id":"5PUYC07TeCkufRe9tGnOwg","type":"track"}

Deleznable
type: MusicRecording
duration: PT1M52S
duration ms: 112223
explicit: false
by artist: Kazu
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T05:47:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x994d3ba0e5a786e2a95c404fa0df2657dbe63649355c3bff7b8f232ee9f7dd9b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3PWtFdCrv2Cjh0UvaJ4FY1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3PWtFdCrv2Cjh0UvaJ4FY1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994d3ba0e5a786e2a95c404fa0df2657dbe63649355c3bff7b8f232ee9f7dd9b. 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/3PWtFdCrv2Cjh0UvaJ4FY1.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/3PWtFdCrv2Cjh0UvaJ4FY1.
  date published: 2026-07-02T03:55:08Z

El Trono del Edor
type: MusicRecording
duration: PT4M7S
duration ms: 247720
explicit: false
by artist: Kazu
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147008
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T23:09:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x07788cd74e58db826a376a9fa2173548ec44924605a93f4c36ab9ecd5aba4f50
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1wpjRXjunDAn4EakqhS9Zh.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1wpjRXjunDAn4EakqhS9Zh
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x07788cd74e58db826a376a9fa2173548ec44924605a93f4c36ab9ecd5aba4f50","isrc":"USHM22147008","name":"El Trono del Edor","registered_at":"2026-06-25T23:09:25Z","spotify_id":"1wpjRXjunDAn4EakqhS9Zh","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07788cd74e58db826a376a9fa2173548ec44924605a93f4c36ab9ecd5aba4f50. 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/1wpjRXjunDAn4EakqhS9Zh.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/1wpjRXjunDAn4EakqhS9Zh.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x07788cd74e58db826a376a9fa2173548ec44924605a93f4c36ab9ecd5aba4f50","isrc":"USHM22147008","name":"El Trono del Edor","registered_at":"2026-06-25T23:09:25Z","spotify_id":"1wpjRXjunDAn4EakqhS9Zh","type":"track"}

Memorias de un Escritor
type: MusicRecording
duration: PT2M43S
duration ms: 163449
explicit: false
by artist: Kazu
by artist: Tatiana Gomez Rap
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147009
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T08:21:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9861a293494478a03f5c4238dd42d0ff4a160c2c77e0068a4ea8760c397d8b34
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3ed9N4UIZZGD1lya4n3KAQ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3ed9N4UIZZGD1lya4n3KAQ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9861a293494478a03f5c4238dd42d0ff4a160c2c77e0068a4ea8760c397d8b34","isrc":"USHM22147009","name":"Memorias de un Escritor","registered_at":"2026-06-23T08:21:59Z","spotify_id":"3ed9N4UIZZGD1lya4n3KAQ","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9861a293494478a03f5c4238dd42d0ff4a160c2c77e0068a4ea8760c397d8b34. 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/3ed9N4UIZZGD1lya4n3KAQ.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/3ed9N4UIZZGD1lya4n3KAQ.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x9861a293494478a03f5c4238dd42d0ff4a160c2c77e0068a4ea8760c397d8b34","isrc":"USHM22147009","name":"Memorias de un Escritor","registered_at":"2026-06-23T08:21:59Z","spotify_id":"3ed9N4UIZZGD1lya4n3KAQ","type":"track"}

La Inmoralidad de la Gracia
type: MusicRecording
duration: PT2M35S
duration ms: 155690
explicit: false
by artist: Kazu
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147010
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T04:41:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcb4aa32df3ff8381794aeb93a165ab2ed66fceff9c0722abcd1fee5db70eabc5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0ZnBmcgK8JhV6CS5oyFlbb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0ZnBmcgK8JhV6CS5oyFlbb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcb4aa32df3ff8381794aeb93a165ab2ed66fceff9c0722abcd1fee5db70eabc5","isrc":"USHM22147010","name":"La Inmoralidad de la Gracia","registered_at":"2026-06-21T04:41:56Z","spotify_id":"0ZnBmcgK8JhV6CS5oyFlbb","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4aa32df3ff8381794aeb93a165ab2ed66fceff9c0722abcd1fee5db70eabc5. 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/0ZnBmcgK8JhV6CS5oyFlbb.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/0ZnBmcgK8JhV6CS5oyFlbb.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xcb4aa32df3ff8381794aeb93a165ab2ed66fceff9c0722abcd1fee5db70eabc5","isrc":"USHM22147010","name":"La Inmoralidad de la Gracia","registered_at":"2026-06-21T04:41:56Z","spotify_id":"0ZnBmcgK8JhV6CS5oyFlbb","type":"track"}

Interludio
type: MusicRecording
duration: PT1M41S
duration ms: 101094
explicit: false
by artist: Kazu
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147011

Rasgos de Guerra
type: MusicRecording
duration: PT1M43S
duration ms: 103158
explicit: false
by artist: Kazu
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147012

Mentira
type: MusicRecording
duration: PT3M56S
duration ms: 236095
explicit: false
by artist: Kazu
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147013
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T15:29:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x211dcdceebcc74c92a5303008bf0444755ebd20ed84bd819da425e34d286e007
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5VqthwzPBaF0ThBOcTA6Cw.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5VqthwzPBaF0ThBOcTA6Cw
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211dcdceebcc74c92a5303008bf0444755ebd20ed84bd819da425e34d286e007. 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/5VqthwzPBaF0ThBOcTA6Cw.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/5VqthwzPBaF0ThBOcTA6Cw.
  date published: 2026-07-02T03:55:08Z

Ántrax
type: MusicRecording
duration: PT2M37S
duration ms: 157519
explicit: false
by artist: Kazu
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147014
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T02:49:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8b07a2e45f7f90e39e172e3cdd83f85ffeb8feac1e6cc8620084647cd0e39396
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953515
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3bC0DXAmgnRsFGMY3CDVOs.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3bC0DXAmgnRsFGMY3CDVOs
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8b07a2e45f7f90e39e172e3cdd83f85ffeb8feac1e6cc8620084647cd0e39396","isrc":"USHM22147014","name":"Ántrax","registered_at":"2026-06-07T02:49:15Z","spotify_id":"3bC0DXAmgnRsFGMY3CDVOs","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b07a2e45f7f90e39e172e3cdd83f85ffeb8feac1e6cc8620084647cd0e39396. 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/3bC0DXAmgnRsFGMY3CDVOs.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/3bC0DXAmgnRsFGMY3CDVOs.
  date published: 2026-06-13T12:53:06Z
  text: {"copyright_id":"0x8b07a2e45f7f90e39e172e3cdd83f85ffeb8feac1e6cc8620084647cd0e39396","isrc":"USHM22147014","name":"Ántrax","registered_at":"2026-06-07T02:49:15Z","spotify_id":"3bC0DXAmgnRsFGMY3CDVOs","type":"track"}

Mariposas Sucias, Pt. 1
type: MusicRecording
duration: PT3M6S
duration ms: 186489
explicit: false
by artist: Kazu
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147015
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T07:48:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x63f673005b242f526fbe3180cef1c46a1418b714bc3dbc8277a36911ea3b9e4a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5n7jAElbtSkN0j0HnJG4Ya.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5n7jAElbtSkN0j0HnJG4Ya
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x63f673005b242f526fbe3180cef1c46a1418b714bc3dbc8277a36911ea3b9e4a","isrc":"USHM22147015","name":"Mariposas Sucias, Pt. 1","registered_at":"2026-06-20T07:48:23Z","spotify_id":"5n7jAElbtSkN0j0HnJG4Ya","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f673005b242f526fbe3180cef1c46a1418b714bc3dbc8277a36911ea3b9e4a. 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/5n7jAElbtSkN0j0HnJG4Ya.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/5n7jAElbtSkN0j0HnJG4Ya.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x63f673005b242f526fbe3180cef1c46a1418b714bc3dbc8277a36911ea3b9e4a","isrc":"USHM22147015","name":"Mariposas Sucias, Pt. 1","registered_at":"2026-06-20T07:48:23Z","spotify_id":"5n7jAElbtSkN0j0HnJG4Ya","type":"track"}

Mariposas Sucias, Pt. 2
type: MusicRecording
duration: PT2M56S
duration ms: 176510
explicit: false
by artist: Kazu
by artist: Ziferk Rap Wasay
in album: Ántrax
  type: MusicAlbum
  date published: 2021-06-04
isrc code: USHM22147016
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T19:00:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb6c4cf68882c4833506ddeae99ca8dc92a08a5dccf10e1222a6a53da28117f4b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6LwiW8N9mrljOswLvkKOMx.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6LwiW8N9mrljOswLvkKOMx
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb6c4cf68882c4833506ddeae99ca8dc92a08a5dccf10e1222a6a53da28117f4b","isrc":"USHM22147016","name":"Mariposas Sucias, Pt. 2","registered_at":"2026-06-09T19:00:36Z","spotify_id":"6LwiW8N9mrljOswLvkKOMx","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c4cf68882c4833506ddeae99ca8dc92a08a5dccf10e1222a6a53da28117f4b. 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/6LwiW8N9mrljOswLvkKOMx.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/6LwiW8N9mrljOswLvkKOMx.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xb6c4cf68882c4833506ddeae99ca8dc92a08a5dccf10e1222a6a53da28117f4b","isrc":"USHM22147016","name":"Mariposas Sucias, Pt. 2","registered_at":"2026-06-09T19:00:36Z","spotify_id":"6LwiW8N9mrljOswLvkKOMx","type":"track"}

El as Bajo la Manga
type: MusicRecording
duration: PT2M54S
duration ms: 174969
explicit: false
by artist: Kazu
in album: El Lado Oscuro del Prisma
  type: MusicAlbum
  date published: 2021-05-14
isrc code: USHM22103150

Luna
type: MusicRecording
duration: PT3M42S
duration ms: 222146
explicit: false
by artist: Kazu
in album: El Lado Oscuro del Prisma
  type: MusicAlbum
  date published: 2021-05-14
isrc code: USHM22103151

Solo Quieren Sonar
type: MusicRecording
duration: PT3M43S
duration ms: 223948
explicit: false
by artist: Kazu
in album: El Lado Oscuro del Prisma
  type: MusicAlbum
  date published: 2021-05-14
isrc code: USHM22103152

En Terrenos Hostiles
type: MusicRecording
duration: PT2M57S
duration ms: 177816
explicit: false
by artist: Kazu
in album: El Lado Oscuro del Prisma
  type: MusicAlbum
  date published: 2021-05-14
isrc code: USHM22103153