Nana Linda
type: MusicGroup
popularity: 21
followers: 735
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd95bc529ab2fdcc06b89ec076e536211db96ffb0b90c8372fda21c32f12d8778
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/c58de241-8673-4e7d-9828-22a665a7265b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c58de241-8673-4e7d-9828-22a665a7265b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c58de241-8673-4e7d-9828-22a665a7265b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd95bc529ab2fdcc06b89ec076e536211db96ffb0b90c8372fda21c32f12d8778","name":"Nana Linda","registered_at":"2026-06-12T09:16:50Z","symbol":"NIM0253530","token_address":"0x67526fe4a7d7f0064e2ed850ef8454c626a15bc8","type":"artist","uuid":"c58de241-8673-4e7d-9828-22a665a7265b"}
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 0xd95bc529ab2fdcc06b89ec076e536211db96ffb0b90c8372fda21c32f12d8778. 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/c58de241-8673-4e7d-9828-22a665a7265b.json and https://artists.proofprofile.net/proofs/artist/c58de241-8673-4e7d-9828-22a665a7265b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xd95bc529ab2fdcc06b89ec076e536211db96ffb0b90c8372fda21c32f12d8778","name":"Nana Linda","registered_at":"2026-06-12T09:16:50Z","symbol":"NIM0253530","token_address":"0x67526fe4a7d7f0064e2ed850ef8454c626a15bc8","type":"artist","uuid":"c58de241-8673-4e7d-9828-22a665a7265b"}
album: Duérmete Bebé Querido
  type: MusicAlbum
  date published: 2023-06-03
album: Tus Ojitos Vas Cerrando
  type: MusicAlbum
  date published: 2023-06-27
album: A dormir
  type: MusicAlbum
  date published: 2023-06-27
album: Arrorro
  type: MusicAlbum
  date published: 2023-06-27
album: Cinco Lobitos
  type: MusicAlbum
  date published: 2023-06-27
album: Tolín Tolán
  type: MusicAlbum
  date published: 2023-06-28
album: A la Nanita Nana
  type: MusicAlbum
  date published: 2023-06-28
album: Amor y Paz (Sonata de Mozart K622)
  type: MusicAlbum
  date published: 2023-06-28
album: Ea la Nana
  type: MusicAlbum
  date published: 2023-06-28
album: Tres Conejitos (Sinfonía de Mozart K551)
  type: MusicAlbum
  date published: 2023-06-28
album: Mi Cielito
  type: MusicAlbum
  date published: 2023-06-29
album: El Cielo de los Sueños (Contradanza 3 de Mozart)
  type: MusicAlbum
  date published: 2023-06-29
album: El Osito de Satén (Geheime Liebe de Mozart)
  type: MusicAlbum
  date published: 2023-06-29
album: Nanita del Sol
  type: MusicAlbum
  date published: 2023-06-29
album: Dulces Sueños
  type: MusicAlbum
  date published: 2023-06-30
album: Atunaketuna
  type: MusicAlbum
  date published: 2023-06-30
album: La hora de dormir
  type: MusicAlbum
  date published: 2023-06-30
album: Duerme mi angel (Sonata 19 de Mozart)
  type: MusicAlbum
  date published: 2023-07-01
album: Duerme perrito, duerme gatito (Contradanza 1 de Mozart)
  type: MusicAlbum
  date published: 2023-07-01
album: Es la Hora de Dormir (Variaciones de Mozart de "Ah vous dirai-je")
  type: MusicAlbum
  date published: 2023-07-02
album: Abejita perdida (Sonata 11 de Mozart)
  type: MusicAlbum
  date published: 2023-07-02
album: Cantan las Ovejas (Sonata K.282 de Mozart)
  type: MusicAlbum
  date published: 2023-07-02
album: Murmullos de Amor ("Daphne, deine Rosenwangen" Mozart K52)
  type: MusicAlbum
  date published: 2023-07-02
album: Duérmete Mi Niño
  type: MusicAlbum
  date published: 2023-07-07
album: Estrellita Dónde Estás
  type: MusicAlbum
  date published: 2023-07-09
album: La Lechuza
  type: MusicAlbum
  date published: 2023-07-17
album: Canciones de Cuna en Cajitas de Música
  type: MusicAlbum
  date published: 2023-07-24
album: Saco Una Manito
  type: MusicAlbum
  date published: 2023-07-24
album: Haga Tuto Guagua
  type: MusicAlbum
  date published: 2023-07-31
album: Canciones de Cuna en Cajitas de Música, Vol.2
  type: MusicAlbum
  date published: 2023-08-11
album: Palomita Blanca (Canción de Cuna)
  type: MusicAlbum
  date published: 2023-08-12
album: Din Dan (Canción de Cuna)
  type: MusicAlbum
  date published: 2023-08-19
album: Tengo Una Muñeca (Canción de Cuna)
  type: MusicAlbum
  date published: 2023-08-25
album: Canciones de Cuna en Cajitas de Música, Vol.3
  type: MusicAlbum
  date published: 2023-09-03
  track: La Cucaracha No Puede Caminar (Canción de Cuna)
    type: MusicRecording
    duration: PT3M18S
    duration ms: 198405
    explicit: false
    by artist: Nana Linda
    in album: Canciones de Cuna en Cajitas de Música, Vol.3
      type: MusicAlbum
      date published: 2023-09-03
    isrc code: QZTAW2305536
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T14:27:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x728f08181c0e56cd83cbebcf440d608598ce3519c358aac35d578a6db262398b
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    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/QZTAW2305536
    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 0x728f08181c0e56cd83cbebcf440d608598ce3519c358aac35d578a6db262398b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAW2305536 — a six-check JSON result.
      date published: 2026-07-05T01:12:41Z
    audio: La Cucaracha No Puede Caminar (Canción de Cuna)
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      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.022
      additional property: Musical Key
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        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: 0.756
      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Los Pollitos (Cancion de Cuna)
album: Pin Pon (Canción de Cuna)
album: Cucú Cantaba La Rana (Canción de Cuna)
album: El Barquito Chiquitito (Canción de Cuna)
album: Cajitas de Musica De Liverpool
album: La Vaca Lola (Canción de Cuna)
album: Un Elefante Se Balanceaba (Canción de Cuna)
album: A Mi Burro (Canción de Cuna)
album: La Manzana Se Pasea (Canción de Cuna)
album: La Pájara Pinta (Canción de Cuna)
album: Canciones de Cuna en Cajitas de Música, Vol.4
album: Cinco Patitos (Canción de Cuna)
album: El Patio de mi Casa (Canción de Cuna)
album: Debajo de un Botón (Canción de Cuna)
album: La Vaca Lechera (Canción de Cuna)
album: Canciones de Cuna en Cajitas de Música, Vol.5
album: Al Corro de la Patata (Canción de Cuna)
album: Aserrín, Aserrán (Canción de Cuna)
album: Cantando con Mozart las Canciones de Cuna
album: Las Mejores Canciones de Cuna
album: Canciones de Cuna para Dormir Bebés
album: Canciones de Cuna
album: Patito, Patito Color de Café (Canción de Cuna)
album: Canciones de Cuna en Cajitas de Música, Vol.6
album: Las Mañanitas (Canción de Cuna)
album: Debajo de un Botón ton ton (Canción de Cuna)
album: Arroz Con Leche (Canción de Cuna)
album: Duerme Bebé (Canción de Cuna)
album: Canciones de Cuna en Cajitas de Música, Vol.7
album: Hada De Los Sueños
album: Nana Para Un Angelito

Acousticness
type: PropertyValue
value: 0.892

Instrumentalness
type: PropertyValue
value: 0.29

Liveness
type: PropertyValue
value: 0.084

Valence (Positivity)
type: PropertyValue
value: 0.553

Loudness (dB)
type: PropertyValue
value: -16.413

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Los Pollitos (Cancion de Cuna)
type: MusicAlbum
date published: 2023-09-03

Pin Pon (Canción de Cuna)
type: MusicAlbum
date published: 2023-09-09

Cucú Cantaba La Rana (Canción de Cuna)
type: MusicAlbum
date published: 2023-09-16

El Barquito Chiquitito (Canción de Cuna)
type: MusicAlbum
date published: 2023-09-23

Cajitas de Musica De Liverpool
type: MusicAlbum
date published: 2023-09-25

La Vaca Lola (Canción de Cuna)
type: MusicAlbum
date published: 2023-10-03

Un Elefante Se Balanceaba (Canción de Cuna)
type: MusicAlbum
date published: 2023-10-06

A Mi Burro (Canción de Cuna)
type: MusicAlbum
date published: 2023-10-14

La Manzana Se Pasea (Canción de Cuna)
type: MusicAlbum
date published: 2023-10-21

La Pájara Pinta (Canción de Cuna)
type: MusicAlbum
date published: 2023-10-29

Canciones de Cuna en Cajitas de Música, Vol.4
type: MusicAlbum
date published: 2023-11-04

Cinco Patitos (Canción de Cuna)
type: MusicAlbum
date published: 2023-11-04

El Patio de mi Casa (Canción de Cuna)
type: MusicAlbum
date published: 2023-11-11

Debajo de un Botón (Canción de Cuna)
type: MusicAlbum
date published: 2023-11-17

La Vaca Lechera (Canción de Cuna)
type: MusicAlbum
date published: 2023-11-27

Canciones de Cuna en Cajitas de Música, Vol.5
type: MusicAlbum
date published: 2023-12-03

Al Corro de la Patata (Canción de Cuna)
type: MusicAlbum
date published: 2023-12-10

Aserrín, Aserrán (Canción de Cuna)
type: MusicAlbum
date published: 2023-12-16

Cantando con Mozart las Canciones de Cuna
type: MusicAlbum
date published: 2023-12-18
track: Murmullos de Amor ("Daphne, deine Rosenwangen" Mozart K52)
  type: MusicRecording
  duration: PT3M0S
  duration ms: 180333
  explicit: false
  by artist: Nana Linda
  in album: Cantando con Mozart las Canciones de Cuna
    type: MusicAlbum
    date published: 2023-12-18
  isrc code: QZMEM2333544
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T03:06:41+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x63ed31cec66f05ea79e901b445b3afd0da707af527b718ff309fd80646e6426a
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEM2333544
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T10:04:33Z
  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 0x63ed31cec66f05ea79e901b445b3afd0da707af527b718ff309fd80646e6426a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEM2333544 — a six-check JSON result.
    date published: 2026-07-04T10:04:33Z
  audio: Murmullos de Amor ("Daphne, deine Rosenwangen" Mozart K52)
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    additional property: Tempo (BPM)
      type: PropertyValue
      value: 89.952
    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.621
    additional property: Energy
      type: PropertyValue
      value: 0.071
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.579
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.376
    additional property: Key Name
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    additional property: Mode Name
      type: PropertyValue
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Las Mejores Canciones de Cuna
type: MusicAlbum
date published: 2023-12-21
track: Tus Ojitos Vas Cerrando
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  duration ms: 247666
  explicit: false
  by artist: Nana Linda
  in album: Las Mejores Canciones de Cuna
    type: MusicAlbum
    date published: 2023-12-21
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  additional property: CopyrightStatus
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958582
  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEQ2378671
  additional property: OTSTimestamp
    type: PropertyValue
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  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 0x2f004b3c66908cdbab036e494b40afe6823da6f7f57ad2c39b0b9565388c5d70. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEQ2378671 — a six-check JSON result.
    date published: 2026-07-18T16:47:25Z
  audio: Tus Ojitos Vas Cerrando
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    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
      value: 0.436
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
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    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.635
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
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track: Cinco Lobitos
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  by artist: Nana Linda
  in album: Las Mejores Canciones de Cuna
    type: MusicAlbum
    date published: 2023-12-21
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  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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    value: https://blockstream.info/api/block-height/956826
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEN2393404
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T19:27:56Z
  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 0x201b6ca0b0880b183f21f10a38dbc9b5d39c910ffc98404c20c757e5a102bc16. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEN2393404 — a six-check JSON result.
    date published: 2026-07-05T19:27:56Z
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    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
      value: 0.88
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.099
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.706
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.858
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Ea la Nana
  type: MusicRecording
  duration: PT2M15S
  duration ms: 135000
  explicit: false
  by artist: Nana Linda
  in album: Las Mejores Canciones de Cuna
    type: MusicAlbum
    date published: 2023-12-21
  isrc code: QZWFP2395179
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T17:49:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0728d16e97c36995696dddf7043457f4da539177e19cb7c292acd951bdc2322f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958444
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958444
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFP2395179
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Ea la Nana
track: A la Nanita Nana
track: Tolín Tolán

OTSTimestamp
type: PropertyValue
value: 2026-07-17T19:12:23Z

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 0x0728d16e97c36995696dddf7043457f4da539177e19cb7c292acd951bdc2322f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFP2395179 — a six-check JSON result.
date published: 2026-07-17T19:12:23Z

Ea la Nana
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 113.657
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: 0.403
additional property: Energy
  type: PropertyValue
  value: 0.183
additional property: Speechiness
  type: PropertyValue
  value: 0.046
additional property: Acousticness
  type: PropertyValue
  value: 0.924
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.055
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.301
additional property: Loudness (dB)
  type: PropertyValue
  value: -14.17
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

A la Nanita Nana
type: MusicRecording
duration: PT2M28S
duration ms: 148970
explicit: false
by artist: Nana Linda
in album: Las Mejores Canciones de Cuna
  type: MusicAlbum
  date published: 2023-12-21
isrc code: QZMEN2394381
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-21T16:08:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42f6d1ca3c42041ec93ff15b7fe9c645230a49f3e35ac8e2baa4f3484cd36a4d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959031
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959031
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEN2394381
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T16:15:11Z
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 0x42f6d1ca3c42041ec93ff15b7fe9c645230a49f3e35ac8e2baa4f3484cd36a4d. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEN2394381 — a six-check JSON result.
  date published: 2026-07-21T16:15:11Z
audio: A la Nanita Nana
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 94.906
  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: 0.611
  additional property: Energy
    type: PropertyValue
    value: 0.179
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.918
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.087
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.563
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.065
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Tolín Tolán
type: MusicRecording
duration: PT3M45S
duration ms: 225807
explicit: false
by artist: Nana Linda
in album: Las Mejores Canciones de Cuna
  type: MusicAlbum
  date published: 2023-12-21
isrc code: QZK6F2309464
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T23:09:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x88722bed58451880cc9a71a10dd608d22fc628f9867e24be8b737a59f309d2ba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958796
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958796
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2309464
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T00:01:46Z
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 0x88722bed58451880cc9a71a10dd608d22fc628f9867e24be8b737a59f309d2ba. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2309464 — a six-check JSON result.
  date published: 2026-07-20T00:01:46Z
audio: Tolín Tolán
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.244
  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: 0.68
  additional property: Energy
    type: PropertyValue
    value: 0.205
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.911
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.102
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.616
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.502
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Canciones de Cuna para Dormir Bebés
type: MusicAlbum
date published: 2023-12-22
track: Atunaketuna
  type: MusicRecording
  duration: PT4M4S
  duration ms: 244382
  explicit: false
  by artist: Nana Linda
  in album: Canciones de Cuna para Dormir Bebés
    type: MusicAlbum
    date published: 2023-12-22
  isrc code: QZK6F2310971
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T17:17:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x33430dcab7390580abe48f372ca47e7d73397f92bb367edc1ae9e21b92940185
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958761
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958761
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2310971
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T17:49:48Z
  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 0x33430dcab7390580abe48f372ca47e7d73397f92bb367edc1ae9e21b92940185. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2310971 — a six-check JSON result.
    date published: 2026-07-19T17:49:48Z
  audio: Atunaketuna
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.542
    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: 0.525
    additional property: Energy
      type: PropertyValue
      value: 0.378
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.825
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.11
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.49
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.585
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Canciones de Cuna
type: MusicAlbum
date published: 2024-01-04
track: Los Pollitos (Cancion de Cuna)
  type: MusicRecording
  duration: PT2M26S
  duration ms: 146306
  explicit: false
  by artist: Nana Linda
  in album: Canciones de Cuna
    type: MusicAlbum
    date published: 2024-01-04
  isrc code: QZTAU2382868
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T01:16:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5d0da78aeaa75ee2051aa98dd27e9385de9a190026f2fdd3ed6e5e82e1e6de90
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958480
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958480
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAU2382868
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T02:58:58Z
  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 0x5d0da78aeaa75ee2051aa98dd27e9385de9a190026f2fdd3ed6e5e82e1e6de90. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAU2382868 — a six-check JSON result.
    date published: 2026-07-18T02:58:58Z
  audio: Los Pollitos (Cancion de Cuna)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 109.82
    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: 0.534
    additional property: Energy
      type: PropertyValue
      value: 0.166
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.927
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.109
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.41
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.59
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: El Barquito Chiquitito (Canción de Cuna)
  type: MusicRecording
  duration: PT2M43S
  duration ms: 163500
  explicit: false
  by artist: Nana Linda
  in album: Canciones de Cuna
    type: MusicAlbum
    date published: 2024-01-04
  isrc code: QZTB22379209
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T17:25:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8fd5676c9a7a10ce1d2589b6a8de0dd07de0112c26e9403ef8f04bf1796cf5b9
  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/QZTB22379209
  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 0x8fd5676c9a7a10ce1d2589b6a8de0dd07de0112c26e9403ef8f04bf1796cf5b9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22379209 — a six-check JSON result.
    date published: 2026-07-20T17:53:56Z
  audio: El Barquito Chiquitito (Canción de Cuna)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 79.955
    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: 0.691
    additional property: Energy
      type: PropertyValue
      value: 0.23
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.883
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.101
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.618
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.468
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Un Elefante Se Balanceaba (Canción de Cuna)
  type: MusicRecording
  duration: PT2M53S
  duration ms: 173181
  explicit: false
  by artist: Nana Linda
  in album: Canciones de Cuna
    type: MusicAlbum
    date published: 2024-01-04
  isrc code: QZTB62317475
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-22T04:58:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x32a7ef0cd9093175e00b632683a75b9c5ee986f17e08be995166268bf41a3265
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959100
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959100
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62317475
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Un Elefante Se Balanceaba (Canción de Cuna)

OTSTimestamp
type: PropertyValue
value: 2026-07-22T05:29:55Z

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 0x32a7ef0cd9093175e00b632683a75b9c5ee986f17e08be995166268bf41a3265. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62317475 — a six-check JSON result.
date published: 2026-07-22T05:29:55Z

Un Elefante Se Balanceaba (Canción de Cuna)
type: AudioObject
additional property: Tempo (BPM)
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Las Mañanitas (Canción de Cuna)
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Arroz Con Leche (Canción de Cuna)
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Duerme Bebé (Canción de Cuna)
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Canciones de Cuna en Cajitas de Música, Vol.7
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Hada De Los Sueños
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Nana Para Un Angelito
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Ruido Blanco para Dormir Bebés
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El Jardín de los Sueños
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Mi Angel Bebé (Canción de Cuna)
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La Luna En El Cielo (Canción de Cuna)
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Canciones del Reino Mágico
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Mundo de Sueños (Canción de Cuna)
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Nana de la Lluvia (Canción de Cuna)
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Ukulele Para Dormir Bebés
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Las Mejores Nanas para Bebés
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Madre Querida (Cada Amanecer Es Tu Día)
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Cierra Los Ojitos (Canción de Cuna)
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La Cunita (Canción de Cuna)
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Mágica Canción (Canción de Cuna)
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Palabras Mágicas (Canción de Cuna)
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Mi Canción te Dormirá (Canción de Cuna)
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Arrorró mi Luna (Canción de Cuna)
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Ukulele Para Bebés
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Lunita, ¿Donde Estás?
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Tu Madre Te Cuida (Canción de Cuna)
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Cuenta Ovejas (Canción de Cuna)
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A Dormir Mi Bebé (Canción de Cuna)
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Dulce Ukulele para Bebés
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Duérmete mi Niño que hay Mucho por Hacer (Canción de Cuna)
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Clásicos en Cajita de Música para Bebés
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Antes de Dormir Mamita (Canción de Cuna)
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Música Clásica en Cajita Musical
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Hagan Silencio (Canción de Cuna)
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Voz y Cajita Musical en Canciones de Cuna
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Ruido Rosa en Canciones de Cuna
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Cantan Las Estrellas (Canción de Cuna)
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Duerman Mis Cachorritos (Canción de Cuna)
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La Vaca Lola Quiere Dormir (Canción de Cuna)
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Los Pollitos Tienen Sueño (Canción de Cuna)
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Nana Linda Para Dormir Bebés
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Agua - Música para Dormir
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Flauta para un Bebé Dormilón (versión flauta)
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BossaNanas
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Ruido Blanco en Canciones de Cuna
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Viento - Música para Dormir
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BossaNanas, Vol. 2
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Canciones de Cuna en Guitarra
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Guitarra Para Dormir Bebés
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Canciones de Cuna en Guitarra Clásica
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La Lechuza, Canciones para Dormir
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Canciones Para Que Bailen Los Niños Vol.2
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