Grupo Duende
type: MusicGroup
popularity: 9
followers: 370
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf5bfca20e488eff35c62c3e07e88fbb2b416c8281a1f23aed6075c1db26c13a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba13761f-0083-46b8-839d-4190407d5a96.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba13761f-0083-46b8-839d-4190407d5a96.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ba13761f-0083-46b8-839d-4190407d5a96
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xaf5bfca20e488eff35c62c3e07e88fbb2b416c8281a1f23aed6075c1db26c13a","name":"Grupo Duende","registered_at":"2026-06-20T16:33:21Z","symbol":"NIM1655990","token_address":"0xdf4b5083cbb79486011120314004a2eee7efb8ae","type":"artist","uuid":"ba13761f-0083-46b8-839d-4190407d5a96"}
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 0xaf5bfca20e488eff35c62c3e07e88fbb2b416c8281a1f23aed6075c1db26c13a. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba13761f-0083-46b8-839d-4190407d5a96.json and https://artists.proofprofile.net/proofs/artist/ba13761f-0083-46b8-839d-4190407d5a96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xaf5bfca20e488eff35c62c3e07e88fbb2b416c8281a1f23aed6075c1db26c13a","name":"Grupo Duende","registered_at":"2026-06-20T16:33:21Z","symbol":"NIM1655990","token_address":"0xdf4b5083cbb79486011120314004a2eee7efb8ae","type":"artist","uuid":"ba13761f-0083-46b8-839d-4190407d5a96"}
album: Popurrís
  type: MusicAlbum
  date published: 2018-06-01
  track: Popurrí Norteño: La Tumba Falsa / Tristes Recuerdos / Tu Mirada / Y por Esa Calle Vive / Ni Parientes Somos / El Golpe Traidor / El Puente Roto / Caminos de Michoacán / La Camioneta Gris / No
    type: MusicRecording
    duration: PT19M22S
    duration ms: 1162483
    explicit: false
    by artist: Grupo Duende
    in album: Popurrís
      type: MusicAlbum
      date published: 2018-06-01
    isrc code: MX4971513641
  track: Popurrí Norteño Ii: Por Esa Yegua / Flor de Capomo / Cuestión Olvidada / Flor de las Flores / El Chubasco / Jefe de Jefes / Puño de Tierra / La Mesa del Rincón / Tristes Recuerdos / Una Avent
    type: MusicRecording
    duration: PT20M26S
    duration ms: 1226361
    explicit: false
    by artist: Grupo Duende
    in album: Popurrís
      type: MusicAlbum
      date published: 2018-06-01
  track: Popurrí de Cumbias: El Viajero / Si Se Hubiera Casado Conmigo / Pídeme la Luna / Una Mirada / Como Será la Mujer / Con Zapatos de Tacón / Tu Falso Amor / Qué Piensas Hacer Conmigo / Sergio el
    type: MusicRecording
    duration: PT20M45S
    duration ms: 1245495
    explicit: false
    by artist: Grupo Duende
    in album: Popurrís
      type: MusicAlbum
      date published: 2018-06-01
album: Sones Mazatecos (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01
  track: El Gusto (Kjoatsoa) - Remasterizado 2023
    type: MusicRecording
    duration: PT3M56S
    duration ms: 236552
    explicit: false
    by artist: Grupo Duende
    in album: Sones Mazatecos (Remasterizado 2023)
      type: MusicAlbum
      date published: 1970-01-01
    isrc code: MX4972300441
  track: Sones Mazatecos - Remasterizado 2023
    type: MusicRecording
    duration: PT16M48S
    duration ms: 1008905
    explicit: false
    by artist: Grupo Duende
    in album: Sones Mazatecos (Remasterizado 2023)
      type: MusicAlbum
      date published: 1970-01-01
    isrc code: MX4972300442
  track: El Viajero - Remasterizado 2023
    type: MusicRecording
    duration: PT3M12S
    duration ms: 192829
    explicit: false
    by artist: Grupo Duende
    in album: Sones Mazatecos (Remasterizado 2023)
      type: MusicAlbum
      date published: 1970-01-01
    isrc code: MX4972300443
  track: La Reina - Remasterizado 2023
    type: MusicRecording
    duration: PT3M38S
    duration ms: 218501
    explicit: false
    by artist: Grupo Duende
    in album: Sones Mazatecos (Remasterizado 2023)
      type: MusicAlbum
      date published: 1970-01-01
  track: Vidita Mía - Remasterizado 2023
    type: MusicRecording
    duration: PT3M51S
    duration ms: 231207
    explicit: false
    by artist: Grupo Duende
    in album: Sones Mazatecos (Remasterizado 2023)
      type: MusicAlbum
      date published: 1970-01-01
    isrc code: MX4972300445
  track: Qué Soledad - Remasterizado 2023
    type: MusicRecording
    duration: PT3M17S
    duration ms: 197831
    explicit: false
    by artist: Grupo Duende
    in album: Sones Mazatecos (Remasterizado 2023)
      type: MusicAlbum
      date published: 1970-01-01
    isrc code: MX4972300446
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-08T01:44:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf85d5c08972095844c8d9aa497391165fd3c355e24d2a5c230bb84b306f409c0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957120
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/957120
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300446
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:22:41Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85d5c08972095844c8d9aa497391165fd3c355e24d2a5c230bb84b306f409c0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300446.
      date published: 2026-07-08T03:22:41Z
  track: Mi Tristeza - Remasterizado 2023
    type: MusicRecording
    duration: PT3M55S
    duration ms: 235374
    explicit: false
    by artist: Grupo Duende
    in album: Sones Mazatecos (Remasterizado 2023)
      type: MusicAlbum
      date published: 1970-01-01
    isrc code: MX4972300447
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T20:17:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3f1bdfeaf40fa7bfd11238343519f18f1086401296773a54ebdb35c0c5f49f1b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957120
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/957120
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300447
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:22:41Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1bdfeaf40fa7bfd11238343519f18f1086401296773a54ebdb35c0c5f49f1b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300447.
      date published: 2026-07-08T03:22:41Z
  track: Tu Falso Amor - Remasterizado 2023
album: Pupurrís De Éxitos (Remasterizado 2023)
album: Popurrís de Éxitos 2 (Remasterizado 2023)
album: Luz De Amor (Remasterizado 2023)
album: Cumbia Duende (Remasterizado 2023)
track: Popurrí Norteño: La Tumba Falsa / Tristes Recuerdos / Tu Mirada / Y por Esa Calle Vive / Ni Parientes Somos / El Golpe Traidor / El Puente Roto / Caminos de Michoacán / La Camioneta Gris / No
track: Popurrí Norteño Ii: Por Esa Yegua / Flor de Capomo / Cuestión Olvidada / Flor de las Flores / El Chubasco / Jefe de Jefes / Puño de Tierra / La Mesa del Rincón / Tristes Recuerdos / Una Avent
track: Popurrí de Cumbias: El Viajero / Si Se Hubiera Casado Conmigo / Pídeme la Luna / Una Mirada / Como Será la Mujer / Con Zapatos de Tacón / Tu Falso Amor / Qué Piensas Hacer Conmigo / Sergio el
track: El Gusto (Kjoatsoa) - Remasterizado 2023
track: Sones Mazatecos - Remasterizado 2023
track: El Viajero - Remasterizado 2023
track: La Reina - Remasterizado 2023
track: Vidita Mía - Remasterizado 2023
track: Qué Soledad - Remasterizado 2023
track: Mi Tristeza - Remasterizado 2023
track: Tu Falso Amor - Remasterizado 2023
track: Popurrí Norteño: Por Esa Yegua / Flor De Capomo / Cuestión Olvidada /Flor De Las Flores / El Chubasco / Jefe De Jefes / Una Aventura / Puño De Tierra / En La Mesa Del Rincón / Tristes Recuerd
track: Popurrí Cumbias: Perdóname / Ay El Amor / Tiene Espinas El Rosal / Suavecito Suavecito / Besitos / Como Mariposa - Remasterizado 2023
track: Limosnero Con Cariño - Remasterizado 2023
track: Enamorado De Ti - Remasterizado 2023
track: Qué Corazón Tuviste - Remasterizado 2023
track: Popurrí Norteño: La Tumba Falsa / Tristes Recuerdos / Tu Mirada / Y Por Esa Calle Vive / Ni Parientes Somos / El Golpe Traidor / El Puente Roto / Caminos De Michoacán / La Puerta Negra / La C
track: Popurrí Cumbias: El Viajero / Si Se Hubiera Casado Conmigo / Pídeme La Luna / Una Miradita / Cómo Será La Mujer / Con Zapatos De Tacón / Tu Falso Amor / Qué Piensas Hacer Conmigo / Sergio El
track: Luz De Amor - Remasterizado 2023
track: Tu Sombra - Remasterizado 2023

Tu Falso Amor - Remasterizado 2023
type: MusicRecording
duration: PT4M10S
duration ms: 250159
explicit: false
by artist: Grupo Duende
in album: Sones Mazatecos (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01
isrc code: MX4972300448

Pupurrís De Éxitos (Remasterizado 2023)
type: MusicAlbum
date published: 1970-01-01
track: Popurrí Norteño: Por Esa Yegua / Flor De Capomo / Cuestión Olvidada /Flor De Las Flores / El Chubasco / Jefe De Jefes / Una Aventura / Puño De Tierra / En La Mesa Del Rincón / Tristes Recuerd
  type: MusicRecording
  duration: PT20M28S
  duration ms: 1228363
  explicit: false
  by artist: Grupo Duende
  in album: Pupurrís De Éxitos (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
track: Popurrí Cumbias: Perdóname / Ay El Amor / Tiene Espinas El Rosal / Suavecito Suavecito / Besitos / Como Mariposa - Remasterizado 2023
  type: MusicRecording
  duration: PT8M46S
  duration ms: 526884
  explicit: false
  by artist: Grupo Duende
  in album: Pupurrís De Éxitos (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: MX4972300437
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-26T15:32:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x93b56b5084b89a309510a2a84cc67d5c9db3030f47a9abdb8f2a0beb213d0ce8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956351
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956351
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300437
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T11:38:34Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b56b5084b89a309510a2a84cc67d5c9db3030f47a9abdb8f2a0beb213d0ce8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300437.
    date published: 2026-07-02T11:38:34Z
track: Limosnero Con Cariño - Remasterizado 2023
  type: MusicRecording
  duration: PT3M14S
  duration ms: 194765
  explicit: false
  by artist: Grupo Duende
  in album: Pupurrís De Éxitos (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
track: Enamorado De Ti - Remasterizado 2023
  type: MusicRecording
  duration: PT3M22S
  duration ms: 202431
  explicit: false
  by artist: Grupo Duende
  in album: Pupurrís De Éxitos (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
track: Qué Corazón Tuviste - Remasterizado 2023
  type: MusicRecording
  duration: PT3M22S
  duration ms: 202184
  explicit: false
  by artist: Grupo Duende
  in album: Pupurrís De Éxitos (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01

Popurrís de Éxitos 2 (Remasterizado 2023)
type: MusicAlbum
date published: 1970-01-01
track: Popurrí Norteño: La Tumba Falsa / Tristes Recuerdos / Tu Mirada / Y Por Esa Calle Vive / Ni Parientes Somos / El Golpe Traidor / El Puente Roto / Caminos De Michoacán / La Puerta Negra / La C
  type: MusicRecording
  duration: PT19M24S
  duration ms: 1164960
  explicit: false
  by artist: Grupo Duende
  in album: Popurrís de Éxitos 2 (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
track: Popurrí Cumbias: El Viajero / Si Se Hubiera Casado Conmigo / Pídeme La Luna / Una Miradita / Cómo Será La Mujer / Con Zapatos De Tacón / Tu Falso Amor / Qué Piensas Hacer Conmigo / Sergio El
  type: MusicRecording
  duration: PT20M49S
  duration ms: 1249026
  explicit: false
  by artist: Grupo Duende
  in album: Popurrís de Éxitos 2 (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01

Luz De Amor (Remasterizado 2023)
type: MusicAlbum
date published: 1970-01-01
track: Luz De Amor - Remasterizado 2023
  type: MusicRecording
  duration: PT3M52S
  duration ms: 232315
  explicit: false
  by artist: Grupo Duende
  in album: Luz De Amor (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: MX4972300406
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-08T00:52:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x306f8f97adc124933365d215f505fa15f3a18ab55a110e2b9ab6a4a2a57bc951
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300406
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306f8f97adc124933365d215f505fa15f3a18ab55a110e2b9ab6a4a2a57bc951. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300406.
    date published: 2026-07-08T03:22:41Z
track: Tu Sombra - Remasterizado 2023
  type: MusicRecording
  duration: PT3M12S
  duration ms: 192358
  explicit: false
  by artist: Grupo Duende
  in album: Luz De Amor (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: MX4972300407
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T18:19:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe4b5e0e05fd40e9bdb901ee2ee8b17ae5bd980e9d0f399452abba16f79ae0483
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300407
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b5e0e05fd40e9bdb901ee2ee8b17ae5bd980e9d0f399452abba16f79ae0483. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300407.
    date published: 2026-07-08T03:22:41Z
track: Qué Milagro Chaparrita - Remasterizado 2023
  type: MusicRecording
  duration: PT4M1S
  duration ms: 241892
  explicit: false
  by artist: Grupo Duende
  in album: Luz De Amor (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
track: No Tengo Interés Por Ti - Remasterizado 2023
  type: MusicRecording
  duration: PT3M27S
  duration ms: 207935
  explicit: false
  by artist: Grupo Duende
  in album: Luz De Amor (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
track: Voy A Olvidarte - Remasterizado 2023
  type: MusicRecording
  duration: PT3M2S
  duration ms: 182070
  explicit: false
  by artist: Grupo Duende
  in album: Luz De Amor (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
track: No Puede Ser Corazón - Remasterizado 2023
  type: MusicRecording
  duration: PT3M34S
  duration ms: 214798
  explicit: false
  by artist: Grupo Duende
  in album: Luz De Amor (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
track: Cumbia De Mi Pueblo - Remasterizado 2023
  type: MusicRecording
  duration: PT3M38S
  duration ms: 218291
  explicit: false
  by artist: Grupo Duende
  in album: Luz De Amor (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: MX4972300412
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T23:24:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x24f698b33fddbad459526301fcf5cb39f3433e12b8fc17d7030afbd40835c8d7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300412
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f698b33fddbad459526301fcf5cb39f3433e12b8fc17d7030afbd40835c8d7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300412.
    date published: 2026-07-08T03:53:27Z
track: Quiero Volar - Remasterizado 2023
  type: MusicRecording
  duration: PT3M26S
  duration ms: 206512
  explicit: false
  by artist: Grupo Duende
  in album: Luz De Amor (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
track: Con La Tinta De Mi Sangre - Remasterizado 2023
  type: MusicRecording
  duration: PT2M35S
  duration ms: 155866
  explicit: false
  by artist: Grupo Duende
  in album: Luz De Amor (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
track: Canción Mixteca - Remasterizado 2023
  type: MusicRecording
  duration: PT3M14S
  duration ms: 194022
  explicit: false
  by artist: Grupo Duende
  in album: Luz De Amor (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
track: Amada Mía - Remasterizado 2023
  type: MusicRecording
  duration: PT4M12S
  duration ms: 252301
  explicit: false
  by artist: Grupo Duende
  in album: Luz De Amor (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
track: Qué Me Lleve El Diablo - Remasterizado 2023
  type: MusicRecording
  duration: PT4M6S
  duration ms: 246480
  explicit: false
  by artist: Grupo Duende
  in album: Luz De Amor (Remasterizado 2023)
  isrc code: MX4972300417

Grupo Duende
type: MusicGroup

Luz De Amor (Remasterizado 2023)
type: MusicAlbum
date published: 1970-01-01

Cumbia Duende (Remasterizado 2023)
type: MusicAlbum
date published: 1970-01-01
track: Cumbia Duende - Remasterizado 2023
  type: MusicRecording
  duration: PT3M27S
  duration ms: 207893
  explicit: false
  by artist: Grupo Duende
  in album: Cumbia Duende (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: MX4972300418
track: Se Que Te Duele - Remasterizado 2023
  type: MusicRecording
  duration: PT3M15S
  duration ms: 195213
  explicit: false
  by artist: Grupo Duende
  in album: Cumbia Duende (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: MX4972300419
track: Paloma Querida - Remasterizado 2023
  type: MusicRecording
  duration: PT2M47S
  duration ms: 167697
  explicit: false
  by artist: Grupo Duende
  in album: Cumbia Duende (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: MX4972300420
track: Amor Sin Vida - Remasterizado 2023
  type: MusicRecording
  duration: PT2M59S
  duration ms: 179339
  explicit: false
  by artist: Grupo Duende
  in album: Cumbia Duende (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: MX4972300421
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T22:27:10+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x267f14feebe813e1093e054e8fd8f1a51c29ab5d912b62f58c07cd5c6167e7b9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300421
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267f14feebe813e1093e054e8fd8f1a51c29ab5d912b62f58c07cd5c6167e7b9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300421.
    date published: 2026-07-08T03:53:27Z
track: Qué Situación - Remasterizado 2023
  type: MusicRecording
  duration: PT3M10S
  duration ms: 190600
  explicit: false
  by artist: Grupo Duende
  in album: Cumbia Duende (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: MX4972300422
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T10:09:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x32f83a5a9ae29d9c66502540a9e709b6aaef8cb66868d9d002024390d166afb3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300422
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f83a5a9ae29d9c66502540a9e709b6aaef8cb66868d9d002024390d166afb3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300422.
    date published: 2026-07-08T03:22:41Z
track: Qué Haré Sin Ti - Remasterizado 2023
  type: MusicRecording
  duration: PT3M44S
  duration ms: 224309
  explicit: false
  by artist: Grupo Duende
  in album: Cumbia Duende (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: MX4972300423
track: Lágrimas De Mi Barrio - Remasterizado 2023
  type: MusicRecording
  duration: PT3M6S
  duration ms: 186606
  explicit: false
  by artist: Grupo Duende
  in album: Cumbia Duende (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: MX4972300424
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T18:36:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x03854accf67b6073fc410a6ef61fc6164b68cfcb2471813f85596cbd0b67ccfe
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957122
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/957122
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300424
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:39:04Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03854accf67b6073fc410a6ef61fc6164b68cfcb2471813f85596cbd0b67ccfe. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300424.
    date published: 2026-07-08T03:39:04Z
track: Ya Para Qué - Remasterizado 2023
  type: MusicRecording
  duration: PT2M34S
  duration ms: 154931
  explicit: false
  by artist: Grupo Duende
  in album: Cumbia Duende (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: MX4972300425
track: Cuatro Caminos - Remasterizado 2023
  type: MusicRecording
  duration: PT3M17S
  duration ms: 197948
  explicit: false
  by artist: Grupo Duende
  in album: Cumbia Duende (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: MX4972300426
track: El Juramento - Remasterizado 2023
  type: MusicRecording
  duration: PT3M9S
  duration ms: 189751
  explicit: false
  by artist: Grupo Duende
  in album: Cumbia Duende (Remasterizado 2023)
    type: MusicAlbum
    date published: 1970-01-01
  isrc code: MX4972300427
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T11:47:44+00:00
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x78781c9b5e4971977c09ececa4c8e0d7422e145a04c2c409e6a203c74918801c

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957145

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block/957145

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300427

OTSTimestamp
type: PropertyValue
value: 2026-07-08T08:56:20Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78781c9b5e4971977c09ececa4c8e0d7422e145a04c2c409e6a203c74918801c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300427.
date published: 2026-07-08T08:56:20Z

Popurrí Norteño: La Tumba Falsa / Tristes Recuerdos / Tu Mirada / Y por Esa Calle Vive / Ni Parientes Somos / El Golpe Traidor / El Puente Roto / Caminos de Michoacán / La Camioneta Gris / No
type: MusicRecording
duration: PT19M22S
duration ms: 1162483
explicit: false
by artist: Grupo Duende
in album: Popurrís
  type: MusicAlbum
  date published: 2018-06-01
isrc code: MX4971513641

Popurrí Norteño Ii: Por Esa Yegua / Flor de Capomo / Cuestión Olvidada / Flor de las Flores / El Chubasco / Jefe de Jefes / Puño de Tierra / La Mesa del Rincón / Tristes Recuerdos / Una Avent
type: MusicRecording
duration: PT20M26S
duration ms: 1226361
explicit: false
by artist: Grupo Duende
in album: Popurrís
  type: MusicAlbum
  date published: 2018-06-01

Popurrí de Cumbias: El Viajero / Si Se Hubiera Casado Conmigo / Pídeme la Luna / Una Mirada / Como Será la Mujer / Con Zapatos de Tacón / Tu Falso Amor / Qué Piensas Hacer Conmigo / Sergio el
type: MusicRecording
duration: PT20M45S
duration ms: 1245495
explicit: false
by artist: Grupo Duende
in album: Popurrís
  type: MusicAlbum
  date published: 2018-06-01

El Gusto (Kjoatsoa) - Remasterizado 2023
type: MusicRecording
duration: PT3M56S
duration ms: 236552
explicit: false
by artist: Grupo Duende
in album: Sones Mazatecos (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01
isrc code: MX4972300441

Sones Mazatecos - Remasterizado 2023
type: MusicRecording
duration: PT16M48S
duration ms: 1008905
explicit: false
by artist: Grupo Duende
in album: Sones Mazatecos (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01
isrc code: MX4972300442

El Viajero - Remasterizado 2023
type: MusicRecording
duration: PT3M12S
duration ms: 192829
explicit: false
by artist: Grupo Duende
in album: Sones Mazatecos (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01
isrc code: MX4972300443

La Reina - Remasterizado 2023
type: MusicRecording
duration: PT3M38S
duration ms: 218501
explicit: false
by artist: Grupo Duende
in album: Sones Mazatecos (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01

Vidita Mía - Remasterizado 2023
type: MusicRecording
duration: PT3M51S
duration ms: 231207
explicit: false
by artist: Grupo Duende
in album: Sones Mazatecos (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01
isrc code: MX4972300445

Qué Soledad - Remasterizado 2023
type: MusicRecording
duration: PT3M17S
duration ms: 197831
explicit: false
by artist: Grupo Duende
in album: Sones Mazatecos (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01
isrc code: MX4972300446
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-08T01:44:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf85d5c08972095844c8d9aa497391165fd3c355e24d2a5c230bb84b306f409c0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300446
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85d5c08972095844c8d9aa497391165fd3c355e24d2a5c230bb84b306f409c0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300446.
  date published: 2026-07-08T03:22:41Z

Mi Tristeza - Remasterizado 2023
type: MusicRecording
duration: PT3M55S
duration ms: 235374
explicit: false
by artist: Grupo Duende
in album: Sones Mazatecos (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01
isrc code: MX4972300447
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T20:17:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3f1bdfeaf40fa7bfd11238343519f18f1086401296773a54ebdb35c0c5f49f1b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300447
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1bdfeaf40fa7bfd11238343519f18f1086401296773a54ebdb35c0c5f49f1b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300447.
  date published: 2026-07-08T03:22:41Z

Tu Falso Amor - Remasterizado 2023
type: MusicRecording
duration: PT4M10S
duration ms: 250159
explicit: false
by artist: Grupo Duende
in album: Sones Mazatecos (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01
isrc code: MX4972300448

Popurrí Norteño: Por Esa Yegua / Flor De Capomo / Cuestión Olvidada /Flor De Las Flores / El Chubasco / Jefe De Jefes / Una Aventura / Puño De Tierra / En La Mesa Del Rincón / Tristes Recuerd
type: MusicRecording
duration: PT20M28S
duration ms: 1228363
explicit: false
by artist: Grupo Duende
in album: Pupurrís De Éxitos (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01

Popurrí Cumbias: Perdóname / Ay El Amor / Tiene Espinas El Rosal / Suavecito Suavecito / Besitos / Como Mariposa - Remasterizado 2023
type: MusicRecording
duration: PT8M46S
duration ms: 526884
explicit: false
by artist: Grupo Duende
in album: Pupurrís De Éxitos (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01
isrc code: MX4972300437
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T15:32:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x93b56b5084b89a309510a2a84cc67d5c9db3030f47a9abdb8f2a0beb213d0ce8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956351
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956351
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300437
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:38:34Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b56b5084b89a309510a2a84cc67d5c9db3030f47a9abdb8f2a0beb213d0ce8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300437.
  date published: 2026-07-02T11:38:34Z

Limosnero Con Cariño - Remasterizado 2023
type: MusicRecording
duration: PT3M14S
duration ms: 194765
explicit: false
by artist: Grupo Duende
in album: Pupurrís De Éxitos (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01

Enamorado De Ti - Remasterizado 2023
type: MusicRecording
duration: PT3M22S
duration ms: 202431
explicit: false
by artist: Grupo Duende
in album: Pupurrís De Éxitos (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01

Qué Corazón Tuviste - Remasterizado 2023
type: MusicRecording
duration: PT3M22S
duration ms: 202184
explicit: false
by artist: Grupo Duende
in album: Pupurrís De Éxitos (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01

Popurrí Norteño: La Tumba Falsa / Tristes Recuerdos / Tu Mirada / Y Por Esa Calle Vive / Ni Parientes Somos / El Golpe Traidor / El Puente Roto / Caminos De Michoacán / La Puerta Negra / La C
type: MusicRecording
duration: PT19M24S
duration ms: 1164960
explicit: false
by artist: Grupo Duende
in album: Popurrís de Éxitos 2 (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01

Popurrí Cumbias: El Viajero / Si Se Hubiera Casado Conmigo / Pídeme La Luna / Una Miradita / Cómo Será La Mujer / Con Zapatos De Tacón / Tu Falso Amor / Qué Piensas Hacer Conmigo / Sergio El
type: MusicRecording
duration: PT20M49S
duration ms: 1249026
explicit: false
by artist: Grupo Duende
in album: Popurrís de Éxitos 2 (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01

Luz De Amor - Remasterizado 2023
type: MusicRecording
duration: PT3M52S
duration ms: 232315
explicit: false
by artist: Grupo Duende
in album: Luz De Amor (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01
isrc code: MX4972300406
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-08T00:52:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x306f8f97adc124933365d215f505fa15f3a18ab55a110e2b9ab6a4a2a57bc951
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300406
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306f8f97adc124933365d215f505fa15f3a18ab55a110e2b9ab6a4a2a57bc951. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300406.
  date published: 2026-07-08T03:22:41Z

Tu Sombra - Remasterizado 2023
type: MusicRecording
duration: PT3M12S
duration ms: 192358
explicit: false
by artist: Grupo Duende
in album: Luz De Amor (Remasterizado 2023)
  type: MusicAlbum
  date published: 1970-01-01
isrc code: MX4972300407
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:19:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe4b5e0e05fd40e9bdb901ee2ee8b17ae5bd980e9d0f399452abba16f79ae0483
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300407
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b5e0e05fd40e9bdb901ee2ee8b17ae5bd980e9d0f399452abba16f79ae0483. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX4972300407.
  date published: 2026-07-08T03:22:41Z