Fernando Fernandez
type: MusicGroup
genre: bolero
description: REDIRECT Fernando Fernández
popularity: 35
followers: 5075
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0305f64369eb1d9f380ea3c9ace607a92e50671637262e04213cf008626a75d7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f88a8b0a-2dd7-4e87-b25b-55844e2854ef.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f88a8b0a-2dd7-4e87-b25b-55844e2854ef.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f88a8b0a-2dd7-4e87-b25b-55844e2854ef
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0305f64369eb1d9f380ea3c9ace607a92e50671637262e04213cf008626a75d7","name":"Fernando Fernandez","registered_at":"2026-06-12T14:03:31Z","symbol":"NIM0319788","token_address":"0x79caaac8727ac09a2681dae285247f22ade7ada5","type":"artist","uuid":"f88a8b0a-2dd7-4e87-b25b-55844e2854ef"}
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0305f64369eb1d9f380ea3c9ace607a92e50671637262e04213cf008626a75d7. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f88a8b0a-2dd7-4e87-b25b-55844e2854ef.json and https://artists.proofprofile.net/proofs/artist/f88a8b0a-2dd7-4e87-b25b-55844e2854ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x0305f64369eb1d9f380ea3c9ace607a92e50671637262e04213cf008626a75d7","name":"Fernando Fernandez","registered_at":"2026-06-12T14:03:31Z","symbol":"NIM0319788","token_address":"0x79caaac8727ac09a2681dae285247f22ade7ada5","type":"artist","uuid":"f88a8b0a-2dd7-4e87-b25b-55844e2854ef"}
album: Vintage México No. 143 - EP: Un Anochecer
  type: MusicAlbum
  date published: 1955-07-06
album: Vintage México Nº 125 - EPs Collectors, "El Bardo"
  type: MusicAlbum
  date published: 1958-04-12
album: Voz Inolvidable de Mexico
  type: MusicAlbum
  date published: 1958-09-16
album: Hay Unos Ojos
  type: MusicAlbum
  date published: 1963-01-01
  track: Media Vida
    type: MusicRecording
    duration: PT2M55S
    duration ms: 175420
    explicit: false
    by artist: Fernando Fernandez
    in album: Hay Unos Ojos
      type: MusicAlbum
      date published: 1963-01-01
    genre: bolero
    isrc code: MXF366308830
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T21:51:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4f6a23a8d82f827af9a1d27e6444b46c750e80c9adbde5c7b39e2075d1bcc5b0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959065
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959065
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF366308830
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T22:00:50Z
    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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6a23a8d82f827af9a1d27e6444b46c750e80c9adbde5c7b39e2075d1bcc5b0. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/MXF366308830.
      date published: 2026-07-21T22:00:50Z
    audio: Media Vida
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 87.266
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.372
      additional property: Energy
        type: PropertyValue
        value: 0.385
      additional property: Speechiness
        type: PropertyValue
        value: 0.059
      additional property: Acousticness
        type: PropertyValue
        value: 0.851
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.066
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.318
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.841
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Busco un Mundo
  type: MusicAlbum
  date published: 1979-04-17
album: La Mentira
  type: MusicAlbum
  date published: 2009-04-14
album: La Mentira
  type: MusicAlbum
  date published: 2009-04-14
album: Hay Unos Ojos
  type: MusicAlbum
  date published: 2009-04-14
album: Caminos de Ayer
  type: MusicAlbum
  date published: 2009-05-11
album: Caminos De Ayer
  type: MusicAlbum
  date published: 2009-05-11
album: Fernando Fernández
  type: MusicAlbum
  date published: 2012-06-29
album: Juntos Por Primera Vez
  type: MusicAlbum
  date published: 2013-01-15
album: 15 Éxitos de Fernando Fernández (Versiones Originales)
  type: MusicAlbum
  date published: 2013-11-18
  track: Nocturnal
    type: MusicRecording
    duration: PT2M31S
    duration ms: 151733
    explicit: false
    by artist: Fernando Fernandez
    in album: 15 Éxitos de Fernando Fernández (Versiones Originales)
      type: MusicAlbum
      date published: 2013-11-18
    genre: bolero
    isrc code: MXF010000942
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T16:53:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6909eae9c36c57d9ee20139d7ccbbd7f6be72ad2afa0160a1e4fdceb35d69838
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF010000942
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
    audio: Nocturnal
  track: Prisionero del Mar
album: Vagabundo
album: Homenaje a Curiel, Arcaraz y Otros Grandes
album: Exitos de Consuelito Velazquez y Otros Grandes Compositores
album: Hipócrita y Otros Éxitos de Fernando Fernández
album: Boleros del Arrabal
album: Frente A Frente
album: Rancheras
album: Ayer, Hoy y Siempre
album: Lo Mejor de Fernando Fernandez
album: Sucesos Musicales
album: Las Estrellas de la Época Azul
album: Un Corazón y Otros Éxitos Románticos
album: Las Estrellas del Fonógrafo RCA Victor
album: Bella
album: 12 Exitos
album: Noche De Luna
album: Inolvidable
album: Recordando a Fernando Fernandez
album: Traicionera (Remastered)
track: El Plebeyo
track: Hipócrita

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6909eae9c36c57d9ee20139d7ccbbd7f6be72ad2afa0160a1e4fdceb35d69838. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/MXF010000942.
date published: 2026-07-06T01:25:57Z

Nocturnal
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 118.118
additional property: Musical Key
  type: PropertyValue
  value: 5
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.248
additional property: Energy
  type: PropertyValue
  value: 0.197
additional property: Speechiness
  type: PropertyValue
  value: 0.037
additional property: Acousticness
  type: PropertyValue
  value: 0.566
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.263
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.299
additional property: Loudness (dB)
  type: PropertyValue
  value: -16.201
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

Prisionero del Mar
type: MusicRecording
duration: PT2M6S
duration ms: 126946
explicit: false
by artist: Fernando Fernandez
in album: 15 Éxitos de Fernando Fernández (Versiones Originales)
  type: MusicAlbum
  date published: 2013-11-18
genre: bolero
isrc code: MXF019900256
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T04:40:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb2d7a6dea3c2375fb62b59ef44f63b12a557681801d68d2e56b3f07f48e9889d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958242
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958242
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF019900256
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T05:02:52Z
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d7a6dea3c2375fb62b59ef44f63b12a557681801d68d2e56b3f07f48e9889d. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/MXF019900256.
  date published: 2026-07-16T05:02:52Z
audio: Prisionero del Mar
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.717
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.544
  additional property: Energy
    type: PropertyValue
    value: 0.082
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.641
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.307
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.841
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Vagabundo
type: MusicAlbum
date published: 2014-03-24

Homenaje a Curiel, Arcaraz y Otros Grandes
type: MusicAlbum
date published: 2014-04-24

Exitos de Consuelito Velazquez y Otros Grandes Compositores
type: MusicAlbum
date published: 2014-04-29

Vagabundo
type: MusicAlbum
date published: 2014-05-27

Exitos de Consuelito Velazquez y Otros Grandes Compositores
type: MusicAlbum
date published: 2014-06-10

Homenaje a Curiel, Arcaraz y Otros Grandes
type: MusicAlbum
date published: 2014-06-10

Hipócrita y Otros Éxitos de Fernando Fernández
type: MusicAlbum
date published: 2014-06-20
track: Amor Vendido
  type: MusicRecording
  duration: PT3M23S
  duration ms: 203280
  explicit: false
  by artist: Fernando Fernandez
  in album: Hipócrita y Otros Éxitos de Fernando Fernández
    type: MusicAlbum
    date published: 2014-06-20
  genre: bolero
  isrc code: MXF019601391
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T02:42:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa8d22e48e666efd17535844483d6ed324b2740f89b626fff0f0dc916b76e651e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958808
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958808
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF019601391
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T02:49:15Z
  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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d22e48e666efd17535844483d6ed324b2740f89b626fff0f0dc916b76e651e. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/MXF019601391.
    date published: 2026-07-20T02:49:15Z
  audio: Amor Vendido
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 116.139
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.402
    additional property: Energy
      type: PropertyValue
      value: 0.506
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.737
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.092
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.45
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.168
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Arrabalera
  type: MusicRecording
  duration: PT3M32S
  duration ms: 212120
  explicit: false
  by artist: Fernando Fernandez
  in album: Hipócrita y Otros Éxitos de Fernando Fernández
    type: MusicAlbum
    date published: 2014-06-20
  genre: bolero
  isrc code: MXF016700428
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T02:20:59+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x03550cf6cb089254fc7595ef940e9a876caa2afb6e41a02f5c9393ca753fbc90
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956474
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956474
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF016700428
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T08:56:35Z
  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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03550cf6cb089254fc7595ef940e9a876caa2afb6e41a02f5c9393ca753fbc90. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/MXF016700428.
    date published: 2026-07-03T08:56:35Z
  audio: Arrabalera
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 108.375
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.327
    additional property: Energy
      type: PropertyValue
      value: 0.368
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.846
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.082
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.267
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.307
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Vagabundo
  type: MusicRecording
  duration: PT3M15S
  duration ms: 195373
  explicit: false
  by artist: Fernando Fernandez
  in album: Hipócrita y Otros Éxitos de Fernando Fernández
    type: MusicAlbum
    date published: 2014-06-20
  genre: bolero
  isrc code: MXF010000937
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-28T21:21:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x492442d0bf600ed69d38f4818e9b46e7fef099e4eec96a19716f0e81bf3b963b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956375
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956375
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Vagabundo
track: Cabaretera
track: Flor Deshojada
track: Perdida

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF010000937

OTSTimestamp
type: PropertyValue
value: 2026-07-02T16:51:38Z

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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492442d0bf600ed69d38f4818e9b46e7fef099e4eec96a19716f0e81bf3b963b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/MXF010000937.
date published: 2026-07-02T16:51:38Z

Vagabundo
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 123.391
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.701
additional property: Energy
  type: PropertyValue
  value: 0.533
additional property: Speechiness
  type: PropertyValue
  value: 0.05
additional property: Acousticness
  type: PropertyValue
  value: 0.824
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.053
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.869
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.823
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

Cabaretera
type: MusicRecording
duration: PT3M18S
duration ms: 198186
explicit: false
by artist: Fernando Fernandez
in album: Hipócrita y Otros Éxitos de Fernando Fernández
  type: MusicAlbum
  date published: 2014-06-20
genre: bolero
isrc code: MXF019601392
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-17T13:32:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x93f83aa2702bcb14c8a8fcb2d5c75befb9399c8601e43d7d37a5887de5ead843
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958428
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958428
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF019601392
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T15:15:14Z
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f83aa2702bcb14c8a8fcb2d5c75befb9399c8601e43d7d37a5887de5ead843. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/MXF019601392.
  date published: 2026-07-17T15:15:14Z
audio: Cabaretera
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.101
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.455
  additional property: Energy
    type: PropertyValue
    value: 0.323
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.825
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.196
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.492
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.952
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Flor Deshojada
type: MusicRecording
duration: PT2M46S
duration ms: 166706
explicit: false
by artist: Fernando Fernandez
in album: Hipócrita y Otros Éxitos de Fernando Fernández
  type: MusicAlbum
  date published: 2014-06-20
genre: bolero
isrc code: MXF019601393
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T07:51:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2628b7e165e9467c11bebb1293c0cf07f9f490f31258e4abbe0e7b194e233c83
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956772
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956772
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF019601393
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T10:01:46Z
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2628b7e165e9467c11bebb1293c0cf07f9f490f31258e4abbe0e7b194e233c83. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/MXF019601393.
  date published: 2026-07-05T10:01:46Z
audio: Flor Deshojada
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.881
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.717
  additional property: Energy
    type: PropertyValue
    value: 0.338
  additional property: Speechiness
    type: PropertyValue
    value: 0.062
  additional property: Acousticness
    type: PropertyValue
    value: 0.855
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.073
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.886
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.674
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Perdida
type: MusicRecording
duration: PT2M29S
duration ms: 149840
explicit: false
by artist: Fernando Fernandez
in album: Hipócrita y Otros Éxitos de Fernando Fernández
  type: MusicAlbum
  date published: 2014-06-20
genre: bolero
isrc code: MXF019901147
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-13T10:14:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f0e8b4f0e5a636a640eace5ee206ca09eb54389afff5324f29786cb2f6ecd40
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957851
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957851
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF019901147
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-13T11:26:33Z
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0e8b4f0e5a636a640eace5ee206ca09eb54389afff5324f29786cb2f6ecd40. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/MXF019901147.
  date published: 2026-07-13T11:26:33Z
audio: Perdida
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.682
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.516
  additional property: Energy
    type: PropertyValue
    value: 0.252
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.015
  additional property: Liveness
    type: PropertyValue
    value: 0.47
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.581
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.184
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Boleros del Arrabal
type: MusicAlbum
date published: 2014-11-19
track: Amor de Mis Amores
  type: MusicRecording
  duration: PT3M9S
  duration ms: 189480
  explicit: false
  by artist: Fernando Fernandez
  in album: Boleros del Arrabal
    type: MusicAlbum
    date published: 2014-11-19
  genre: bolero
  isrc code: MXF550700525
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T19:21:50+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x637c650b576c1402d742b44ff742ca0c0d23749855e2bdb3a06f26dd90eaa959
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956545
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956545
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF550700525
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T19:59:51Z
  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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637c650b576c1402d742b44ff742ca0c0d23749855e2bdb3a06f26dd90eaa959. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/MXF550700525.
    date published: 2026-07-03T19:59:51Z
  audio: Amor de Mis Amores
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 93.353
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.658
    additional property: Energy
      type: PropertyValue
      value: 0.297
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.632
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.063
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.38
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.212
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Obsesión
  type: MusicRecording
  duration: PT2M28S
  duration ms: 148653
  explicit: false
  by artist: Fernando Fernandez
  in album: Boleros del Arrabal
    type: MusicAlbum
    date published: 2014-11-19
  genre: bolero
  isrc code: MXF550700530
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T22:55:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6acb2c116cce1797c8dff4a6724d502c33018e2e643efe868c1601da665e49f2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF550700530
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acb2c116cce1797c8dff4a6724d502c33018e2e643efe868c1601da665e49f2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/MXF550700530.
    date published: 2026-07-05T01:12:41Z
  audio: Obsesión
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 111.051
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.591
    additional property: Energy
      type: PropertyValue
      value: 0.375
    additional property: Speechiness
      type: PropertyValue
      value: 0.055
    additional property: Acousticness
      type: PropertyValue
      value: 0.654
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.332
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.601
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.12
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Frente A Frente
type: MusicAlbum
date published: 2014-12-09

Rancheras
type: MusicAlbum
date published: 2015-06-12

Ayer, Hoy y Siempre
type: MusicAlbum
date published: 2015-09-18

Lo Mejor de Fernando Fernandez
type: MusicAlbum
date published: 2017-03-03
track: Hernando y Su Rincón
  type: MusicRecording
  duration: PT2M16S
  duration ms: 136960
  explicit: false
  by artist: Fernando Fernandez
  in album: Lo Mejor de Fernando Fernandez
    type: MusicAlbum
    date published: 2017-03-03
  genre: bolero
  isrc code: USJE61702541
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-22T07:59:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb37df35a3a083cef1b30d5ad40c66db17ea6d078ed89e9577a12541bec9ba819
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959114
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959114
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJE61702541
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T08:41:42Z
  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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37df35a3a083cef1b30d5ad40c66db17ea6d078ed89e9577a12541bec9ba819. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/USJE61702541.
    date published: 2026-07-22T08:41:42Z
  audio: Hernando y Su Rincón
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 121.287
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.545
    additional property: Energy
      type: PropertyValue
      value: 0.319
    additional property: Speechiness
      type: PropertyValue
      value: 0.094
    additional property: Acousticness
      type: PropertyValue
      value: 0.861
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.416
    additional property: Liveness
      type: PropertyValue
      value: 0.145
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.642
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.995
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Sucesos Musicales
type: MusicAlbum
date published: 2017-06-23
track: Imposible / Arráncame la Vida
  type: MusicRecording
  duration: PT3M37S
  duration ms: 217480
  explicit: false
  by artist: Fernando Fernandez
  in album: Sucesos Musicales
    type: MusicAlbum
    date published: 2017-06-23
  genre: bolero
  isrc code: MXF010000952
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T16:54:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc8c7a6a91bc1175062bd9924409eb28edce606c912515bbad29be1cec8ae9685
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958917
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958917
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF010000952
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T17:53:56Z
  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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c7a6a91bc1175062bd9924409eb28edce606c912515bbad29be1cec8ae9685. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/MXF010000952.
    date published: 2026-07-20T17:53:56Z
  audio: Imposible / Arráncame la Vida
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 97.094
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.397
    additional property: Energy
      type: PropertyValue
      value: 0.141
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.828
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.086
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.362
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.77
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Las Estrellas de la Época Azul
type: MusicAlbum
date published: 2017-06-23
track: Callejera
  type: MusicRecording
  duration: PT3M4S
  duration ms: 184586
  explicit: false
  by artist: Fernando Fernandez
  in album: Las Estrellas de la Época Azul
    type: MusicAlbum
    date published: 2017-06-23
  genre: bolero
  isrc code: MXF010000948
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T08:40:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xed4c5f98d814b615fde69e42539373f5474b910bf60a30b166d2961a7e664da1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956474
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956474
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF010000948
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T08:56:35Z
  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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4c5f98d814b615fde69e42539373f5474b910bf60a30b166d2961a7e664da1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/MXF010000948.
    date published: 2026-07-03T08:56:35Z
  audio: Callejera
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 114.497
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.528
    additional property: Energy
      type: PropertyValue
      value: 0.412
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.928
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.002
    additional property: Liveness
      type: PropertyValue
      value: 0.158
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.63
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.795
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Peregrina Sin Amor
  type: MusicRecording
  duration: PT3M13S
  duration ms: 193080
  explicit: false
  by artist: Fernando Fernandez
  in album: Las Estrellas de la Época Azul
    type: MusicAlbum
    date published: 2017-06-23
  genre: bolero
  isrc code: MXF019901144
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T23:39:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0754f2d9d599e103578702c74d487ebaa171563206f0401f6b89ec7e1da8f18c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958942
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958942
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF019901144
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T00:24:07Z
  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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0754f2d9d599e103578702c74d487ebaa171563206f0401f6b89ec7e1da8f18c. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/MXF019901144.
    date published: 2026-07-21T00:24:07Z
  audio: Peregrina Sin Amor
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 101.41
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.462
    additional property: Energy
      type: PropertyValue
      value: 0.246
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.921
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.002
    additional property: Liveness
      type: PropertyValue
      value: 0.137
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.488
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.094
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Candilejas (The Terry Theme)
  type: MusicRecording
  duration: PT2M56S
  duration ms: 176786
  explicit: false
  by artist: Fernando Fernandez
  in album: Las Estrellas de la Época Azul
    type: MusicAlbum
    date published: 2017-06-23
  genre: bolero
  isrc code: MXF019501750
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T03:33:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x49b0b267134b9964ab46ea54d2e7bb93625f183a2acbacc03e69576247e13baa
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958489
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958489
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Candilejas (The Terry Theme)
track: Nocturnal

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF019501750

OTSTimestamp
type: PropertyValue
value: 2026-07-18T04:13:26Z

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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b0b267134b9964ab46ea54d2e7bb93625f183a2acbacc03e69576247e13baa. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/MXF019501750.
date published: 2026-07-18T04:13:26Z

Candilejas (The Terry Theme)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 100.194
additional property: Musical Key
  type: PropertyValue
  value: 10
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.305
additional property: Energy
  type: PropertyValue
  value: 0.24
additional property: Speechiness
  type: PropertyValue
  value: 0.033
additional property: Acousticness
  type: PropertyValue
  value: 0.402
additional property: Instrumentalness
  type: PropertyValue
  value: 0.048
additional property: Liveness
  type: PropertyValue
  value: 0.088
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.436
additional property: Loudness (dB)
  type: PropertyValue
  value: -14.575
additional property: Key Name
  type: PropertyValue
  value: Bb
additional property: Mode Name
  type: PropertyValue
  value: Major

Nocturnal
type: MusicRecording
duration: PT2M36S
duration ms: 156146
explicit: false
by artist: Fernando Fernandez
in album: Las Estrellas de la Época Azul
  type: MusicAlbum
  date published: 2017-06-23
genre: bolero
isrc code: MXF010000942
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T16:53:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6909eae9c36c57d9ee20139d7ccbbd7f6be72ad2afa0160a1e4fdceb35d69838
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956725
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956725
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF010000942
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:12:41Z
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6909eae9c36c57d9ee20139d7ccbbd7f6be72ad2afa0160a1e4fdceb35d69838. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/MXF010000942.
  date published: 2026-07-05T01:12:41Z
audio: Nocturnal
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.731
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.294
  additional property: Energy
    type: PropertyValue
    value: 0.167
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.745
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.272
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.2
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.306
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Un Corazón y Otros Éxitos Románticos
type: MusicAlbum
date published: 2017-06-30
track: Brindemos por Amor
  type: MusicRecording
  duration: PT3M4S
  duration ms: 184733
  explicit: false
  by artist: Fernando Fernandez
  in album: Un Corazón y Otros Éxitos Románticos
    type: MusicAlbum
    date published: 2017-06-30
  genre: bolero
  isrc code: MXF018200162
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T01:00:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x45e590da42e5ddd607da59ceb8e90206d65a4e67a7b6ec0ad27c6ee8f8f71cd8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956856
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956856
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF018200162
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:25:57Z
  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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e590da42e5ddd607da59ceb8e90206d65a4e67a7b6ec0ad27c6ee8f8f71cd8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/MXF018200162.
    date published: 2026-07-06T01:25:57Z
  audio: Brindemos por Amor
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 106.476
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.53
    additional property: Energy
      type: PropertyValue
      value: 0.252
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.877
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.002
    additional property: Liveness
      type: PropertyValue
      value: 0.337
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.601
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.239
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Yo Creo en Ti
  type: MusicRecording
  duration: PT3M1S
  duration ms: 181693
  explicit: false
  by artist: Fernando Fernandez
  in album: Un Corazón y Otros Éxitos Románticos
    type: MusicAlbum
    date published: 2017-06-30
  genre: bolero
  isrc code: MXF018200167
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T13:17:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x26b90035ad79e2bcb2ca6dc9a39cc895a8824e52b58b787017290580e1ba4b38
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958558
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958558
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF018200167
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T13:44:16Z
  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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b90035ad79e2bcb2ca6dc9a39cc895a8824e52b58b787017290580e1ba4b38. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/MXF018200167.
    date published: 2026-07-18T13:44:16Z
  audio: Yo Creo en Ti
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 111.619
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.642
    additional property: Energy
      type: PropertyValue
      value: 0.336
    additional property: Speechiness
      type: PropertyValue
      value: 0.071
    additional property: Acousticness
      type: PropertyValue
      value: 0.813
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.108
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.565
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.443
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Corazón Mendigo
  type: MusicRecording
  duration: PT2M43S
  duration ms: 163600
  explicit: false
  by artist: Fernando Fernandez
  in album: Un Corazón y Otros Éxitos Románticos
    type: MusicAlbum
    date published: 2017-06-30
  genre: bolero
  isrc code: MXF018200168
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T22:19:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc832f1b3ec69797d4ac5818391a3ae6e44d133ce09b0dbba9e08c5be24344a72
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956856
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956856
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Corazón Mendigo

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF018200168

OTSTimestamp
type: PropertyValue
value: 2026-07-06T01:25:57Z

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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc832f1b3ec69797d4ac5818391a3ae6e44d133ce09b0dbba9e08c5be24344a72. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/MXF018200168.
date published: 2026-07-06T01:25:57Z

Corazón Mendigo
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 115.882
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.646
additional property: Energy
  type: PropertyValue
  value: 0.298
additional property: Speechiness
  type: PropertyValue
  value: 0.066
additional property: Acousticness
  type: PropertyValue
  value: 0.902
additional property: Instrumentalness
  type: PropertyValue
  value: 0.009
additional property: Liveness
  type: PropertyValue
  value: 0.391
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.637
additional property: Loudness (dB)
  type: PropertyValue
  value: -15.698
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

Las Estrellas del Fonógrafo RCA Victor
type: MusicAlbum
date published: 2017-08-31

Bella
type: MusicAlbum
date published: 2018-10-22

Ayer, Hoy y Siempre
type: MusicAlbum
date published: 2019-04-22

12 Exitos
type: MusicAlbum
date published: 2021-11-26

12 Exitos
type: MusicAlbum
date published: 2021-11-26

Noche De Luna
type: MusicAlbum
date published: 2023-08-11

Inolvidable
type: MusicAlbum
date published: 2024-03-01

Recordando a Fernando Fernandez
type: MusicAlbum
date published: 2024-08-30

Traicionera (Remastered)
type: MusicAlbum
date published: 2024-12-01

El Plebeyo
type: MusicRecording
duration: PT3M20S
duration ms: 200000
explicit: false
by artist: Fernando Fernandez
in album: Tesoros de Colección - Las Estrellas de la Hora Azul
  type: MusicAlbum
  date published: 2014-07-29
isrc code: MXF019900251
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T22:15:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8989e06350bbb06e9d75b348bd2af9db119a8a80641c1bff1f728ab02fd4072f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960160
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960160
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF019900251
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T22:48:59Z
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8989e06350bbb06e9d75b348bd2af9db119a8a80641c1bff1f728ab02fd4072f. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/MXF019900251.
  date published: 2026-07-29T22:48:59Z
audio: El Plebeyo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.526
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.583
  additional property: Energy
    type: PropertyValue
    value: 0.208
  additional property: Speechiness
    type: PropertyValue
    value: 0.361
  additional property: Acousticness
    type: PropertyValue
    value: 0.897
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.248
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.522
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.234
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Hipócrita
type: MusicRecording
duration: PT2M49S
duration ms: 169306
explicit: false
by artist: Fernando Fernandez
in album: Los Grandes Éxitos de las Décadas 40's - 50's, Vol. 3
  type: MusicAlbum
  date published: 2018-01-11
isrc code: MXF019601390
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:01:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa13e87e4b0cc2c69aeddfe74b2beb50d95d0fbf7bdcfacaec2c1a692c28685de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF019601390
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13e87e4b0cc2c69aeddfe74b2beb50d95d0fbf7bdcfacaec2c1a692c28685de. 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/MXF019601390.
  date published: 2026-07-08T03:53:27Z
audio: Hipócrita
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.651
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.759
  additional property: Energy
    type: PropertyValue
    value: 0.397
  additional property: Speechiness
    type: PropertyValue
    value: 0.109
  additional property: Acousticness
    type: PropertyValue
    value: 0.794
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.213
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.569
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.904
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major