La 4.40
type: MusicGroup
genre: cuarteto
popularity: 17
followers: 1156
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa34bc1485197d11cca534716534f8b8918937ee065845ab5a6365e31fdabc243
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953674
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953674
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/609b7214-dea9-4f29-9d78-34415824d59b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/609b7214-dea9-4f29-9d78-34415824d59b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/609b7214-dea9-4f29-9d78-34415824d59b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:07:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa34bc1485197d11cca534716534f8b8918937ee065845ab5a6365e31fdabc243","name":"La 4.40","registered_at":"2026-06-14T14:37:23Z","symbol":"NIM0483790","token_address":"0x2f57bf62a812fe24b55068dfd6dd79ab58ca3d0d","type":"artist","uuid":"609b7214-dea9-4f29-9d78-34415824d59b"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34bc1485197d11cca534716534f8b8918937ee065845ab5a6365e31fdabc243. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/609b7214-dea9-4f29-9d78-34415824d59b.json and https://artists.proofprofile.net/proofs/artist/609b7214-dea9-4f29-9d78-34415824d59b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:49:28Z
  text: {"copyright_id":"0xa34bc1485197d11cca534716534f8b8918937ee065845ab5a6365e31fdabc243","name":"La 4.40","registered_at":"2026-06-14T14:37:23Z","symbol":"NIM0483790","token_address":"0x2f57bf62a812fe24b55068dfd6dd79ab58ca3d0d","type":"artist","uuid":"609b7214-dea9-4f29-9d78-34415824d59b"}
album: Rompiendo Barreras
  type: MusicAlbum
  date published: 2019-02-20
album: Cuarteteando Con la Cuarentona (Radio Edit)
  type: MusicAlbum
  date published: 2021-05-28
album: Onda Nueva (Radio Edit)
  type: MusicAlbum
  date published: 2021-05-28
album: Mienteme (Versión Cuarteto)
  type: MusicAlbum
  date published: 2021-05-28
album: Solo por Maldad (Radio Edit)
  type: MusicAlbum
  date published: 2021-05-28
album: Sin Documentos (Radio Edit)
  type: MusicAlbum
  date published: 2021-06-04
album: Morir de Amor (Radio Edit)
  type: MusicAlbum
  date published: 2021-06-04
album: Necesito un Amor (Radio Edit)
  type: MusicAlbum
  date published: 2021-06-04
album: MI Pan Sususum (Radio Edit)
  type: MusicAlbum
  date published: 2021-06-04
album: Olvidate
  type: MusicAlbum
  date published: 2021-06-11
album: Y Cambio Mi Suerte
  type: MusicAlbum
  date published: 2021-06-25
album: Piensa en MI
  type: MusicAlbum
  date published: 2021-07-09
album: Tu Primera Vez
  type: MusicAlbum
  date published: 2021-07-30
album: Pude Olvidarte
  type: MusicAlbum
  date published: 2021-08-20
album: Ya No Queda Nada para Tomar
  type: MusicAlbum
  date published: 2021-09-10
album: Confidencias
  type: MusicAlbum
  date published: 2021-10-29
album: Aunque Ahora Estes Con El
  type: MusicAlbum
  date published: 2021-12-24
album: No Se Con Que Inteciòn
  type: MusicAlbum
  date published: 2022-06-03
  track: No Se Con Que Intenciòn
    type: MusicRecording
    duration: PT3M13S
    duration ms: 193828
    explicit: false
    by artist: La 4.40
    in album: No Se Con Que Inteciòn
      type: MusicAlbum
      date published: 2022-06-03
    genre: cuarteto
    isrc code: AR8FJ2200095
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T12:16:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x63806c09e4f9c6f5e38de8427f07345f8e46a0d2dee15f35bd9064798d234ee0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958880
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958880
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8FJ2200095
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T15:18:15Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63806c09e4f9c6f5e38de8427f07345f8e46a0d2dee15f35bd9064798d234ee0. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:18:15Z), 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/AR8FJ2200095.
      date published: 2026-07-20T15:18:15Z
    audio: No Se Con Que Intenciòn
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 143.935
      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: 0.748
      additional property: Energy
        type: PropertyValue
        value: 0.828
      additional property: Speechiness
        type: PropertyValue
        value: 0.054
      additional property: Acousticness
        type: PropertyValue
        value: 0.159
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.266
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.666
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.928
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Dime Donde y Cuando
  type: MusicAlbum
  date published: 2022-10-14
album: Latidos
  type: MusicAlbum
  date published: 2022-12-30
  track: Latidos
    type: MusicRecording
    duration: PT3M34S
    duration ms: 214244
    explicit: false
    by artist: La 4.40
    in album: Latidos
      type: MusicAlbum
      date published: 2022-12-30
    genre: cuarteto
    isrc code: AR8FJ2200228
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T01:54:49+00:00
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Latidos
album: LA PRIMERA VEZ
album: Procuro Olvidarte
album: El mundo a tus pies
album: El Soderito / El #2 de la radio Popular
album: Di que sientes tu
album: Pa ti no estoy
album: Corazon Partio
album: Se te olvidó
album: Pedro Pedro cuarteto
album: Te voy a perder
album: Consejo de amor
album: El silencio del adiós
album: El Amor
album: El Beneficio De La Duda

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x68ff54db52731a106506b3b536cd7720ea3948729884a66cd24fb04803113f64

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958350

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958350

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8FJ2200228

OTSTimestamp
type: PropertyValue
value: 2026-07-17T04:55:43Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ff54db52731a106506b3b536cd7720ea3948729884a66cd24fb04803113f64. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:55:43Z), 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/AR8FJ2200228.
date published: 2026-07-17T04:55:43Z

Latidos
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 143.991
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: 0.799
additional property: Energy
  type: PropertyValue
  value: 0.84
additional property: Speechiness
  type: PropertyValue
  value: 0.077
additional property: Acousticness
  type: PropertyValue
  value: 0.128
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.08
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.861
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.252
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

LA PRIMERA VEZ
type: MusicAlbum
date published: 2023-03-29
track: LA PRIMERA VEZ
  type: MusicRecording
  duration: PT3M48S
  duration ms: 228648
  explicit: false
  by artist: La 4.40
  in album: LA PRIMERA VEZ
    type: MusicAlbum
    date published: 2023-03-29
  genre: cuarteto
  isrc code: AR8FJ2300091
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T10:06:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x930056ab57632cfe5ac4c52e17c2ee7db0a1b7c3a1b67da6f38b12720ef6711d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958716
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958716
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8FJ2300091
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T10:15:55Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930056ab57632cfe5ac4c52e17c2ee7db0a1b7c3a1b67da6f38b12720ef6711d. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8FJ2300091.
    date published: 2026-07-19T10:15:55Z
  audio: LA PRIMERA VEZ
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 148.009
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.705
    additional property: Energy
      type: PropertyValue
      value: 0.794
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.027
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.036
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.933
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.178
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Procuro Olvidarte
type: MusicAlbum
date published: 2023-06-30

El mundo a tus pies
type: MusicAlbum
date published: 2023-08-16

El Soderito / El #2 de la radio Popular
type: MusicAlbum
date published: 2023-08-18

Di que sientes tu
type: MusicAlbum
date published: 2023-09-29
track: Di Qué Sientes Tu
  type: MusicRecording
  duration: PT4M15S
  duration ms: 255475
  explicit: false
  by artist: La 4.40
  in album: Di que sientes tu
    type: MusicAlbum
    date published: 2023-09-29
  genre: cuarteto
  isrc code: AR8FJ2300506
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T09:12:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3b90bf31a80ff6c284537d1ac8df7ad581755179ae381bddddf45731362f58fa
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958711
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958711
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8FJ2300506
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T09:26:32Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b90bf31a80ff6c284537d1ac8df7ad581755179ae381bddddf45731362f58fa. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/AR8FJ2300506.
    date published: 2026-07-19T09:26:32Z
  audio: Di Qué Sientes Tu
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.926
    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: 0.7
    additional property: Energy
      type: PropertyValue
      value: 0.903
    additional property: Speechiness
      type: PropertyValue
      value: 0.227
    additional property: Acousticness
      type: PropertyValue
      value: 0.119
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.079
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.444
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.184
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Pa ti no estoy
type: MusicAlbum
date published: 2023-11-24
track: Pa ti no estoy
  type: MusicRecording
  duration: PT3M54S
  duration ms: 234346
  explicit: false
  by artist: La 4.40
  in album: Pa ti no estoy
    type: MusicAlbum
    date published: 2023-11-24
  genre: cuarteto
  isrc code: AR8FJ2300530
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T23:59:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf460c596a136396cec3cdc21d6f7b32125094bd10b2deb9d51a34f6973855001
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8FJ2300530
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf460c596a136396cec3cdc21d6f7b32125094bd10b2deb9d51a34f6973855001. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8FJ2300530.
    date published: 2026-07-04T10:04:33Z
  audio: Pa ti no estoy
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 144.899
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.764
    additional property: Energy
      type: PropertyValue
      value: 0.837
    additional property: Speechiness
      type: PropertyValue
      value: 0.137
    additional property: Acousticness
      type: PropertyValue
      value: 0.167
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.254
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.826
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.244
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Corazon Partio
type: MusicAlbum
date published: 2024-01-17
track: Corazón Partío
  type: MusicRecording
  duration: PT4M8S
  duration ms: 248202
  explicit: false
  by artist: La 4.40
  in album: Corazon Partio
    type: MusicAlbum
    date published: 2024-01-17
  genre: cuarteto
  isrc code: AR8FJ2400001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T04:56:21+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcb1b5d18dd1737da6e45b896fc17ba1e37185617c8043af9033c92518c82156d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958501
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958501
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8FJ2400001
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1b5d18dd1737da6e45b896fc17ba1e37185617c8043af9033c92518c82156d. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8FJ2400001.
    date published: 2026-07-18T05:33:04Z
  audio: Corazón Partío
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 148.039
    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: 0.752
    additional property: Energy
      type: PropertyValue
      value: 0.772
    additional property: Speechiness
      type: PropertyValue
      value: 0.082
    additional property: Acousticness
      type: PropertyValue
      value: 0.125
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.333
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.886
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.917
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Se te olvidó
type: MusicAlbum
date published: 2024-04-17
track: Se te olvidó
  type: MusicRecording
  duration: PT3M47S
  duration ms: 227521
  explicit: false
  by artist: La 4.40
  in album: Se te olvidó
    type: MusicAlbum
    date published: 2024-04-17
  genre: cuarteto
  isrc code: AR8FJ2400145
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T22:53:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1f58b5c6c031c97da4c46dc08015523f9e900c1636e0cd43ee3073daf5d0d0db
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958212
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958212
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8FJ2400145
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T01:56:47Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f58b5c6c031c97da4c46dc08015523f9e900c1636e0cd43ee3073daf5d0d0db. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:56:47Z), 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/AR8FJ2400145.
    date published: 2026-07-16T01:56:47Z
  audio: Se te olvidó
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 147.844
    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: 0.663
    additional property: Energy
      type: PropertyValue
      value: 0.736
    additional property: Speechiness
      type: PropertyValue
      value: 0.092
    additional property: Acousticness
      type: PropertyValue
      value: 0.118
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.177
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.683
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.233
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Pedro Pedro cuarteto
type: MusicAlbum
date published: 2024-05-24

Te voy a perder
type: MusicAlbum
date published: 2024-09-20
track: Te voy a perder
  type: MusicRecording
  duration: PT3M46S
  duration ms: 226849
  explicit: false
  by artist: La 4.40
  in album: Te voy a perder
    type: MusicAlbum
    date published: 2024-09-20
  genre: cuarteto
  isrc code: AR8FJ2400238
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-13T15:18:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf5c424b32a1639b5d2a7d0845328360898d7c84d140078bbd8a17b6a5813e964
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957874
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957874
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8FJ2400238
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-13T15:43:57Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c424b32a1639b5d2a7d0845328360898d7c84d140078bbd8a17b6a5813e964. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/AR8FJ2400238.
    date published: 2026-07-13T15:43:57Z
  audio: Te voy a perder
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 145.965
    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: 0.742
    additional property: Energy
      type: PropertyValue
      value: 0.797
    additional property: Speechiness
      type: PropertyValue
      value: 0.065
    additional property: Acousticness
      type: PropertyValue
      value: 0.213
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.184
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.669
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.244
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Consejo de amor
type: MusicAlbum
date published: 2024-12-13

El silencio del adiós
type: MusicAlbum
date published: 2025-04-18
track: El silencio del adiós
  type: MusicRecording
  duration: PT3M54S
  duration ms: 234416
  explicit: false
  by artist: La 4.40
  in album: El silencio del adiós
    type: MusicAlbum
    date published: 2025-04-18
  genre: cuarteto
  isrc code: AR8FJ2500071
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T18:08:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x14661a0cc0cc5ee58f686cf2f83f3e13bbbc54afee46f2e99bade942800eed9c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958185
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958185
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8FJ2500071
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T18:19:04Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14661a0cc0cc5ee58f686cf2f83f3e13bbbc54afee46f2e99bade942800eed9c. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8FJ2500071.
    date published: 2026-07-15T18:19:04Z
  audio: El silencio del adiós
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 140.038
    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: 0.703
    additional property: Energy
      type: PropertyValue
      value: 0.697
    additional property: Speechiness
      type: PropertyValue
      value: 0.077
    additional property: Acousticness
      type: PropertyValue
      value: 0.396
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.369
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.535
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.981
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor

El Amor
type: MusicAlbum
date published: 2025-08-22

El Beneficio De La Duda
type: MusicAlbum
date published: 2025-10-24
track: El Beneficio De La Duda
  type: MusicRecording
  duration: PT3M50S
  duration ms: 230909
  explicit: false
  by artist: La 4.40
  in album: El Beneficio De La Duda
    type: MusicAlbum
    date published: 2025-10-24
  genre: cuarteto
  isrc code: AR8FJ2500198
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T08:35:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6d83f7e98a58097ccfe3aea7245f0da0727dc4af52c65bfa413190f28d3ecc70
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958388
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958388
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8FJ2500198
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T09:14:21Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d83f7e98a58097ccfe3aea7245f0da0727dc4af52c65bfa413190f28d3ecc70. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/AR8FJ2500198.
    date published: 2026-07-17T09:14:21Z
  audio: El Beneficio De La Duda
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 132.87
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.745
    additional property: Energy
      type: PropertyValue
      value: 0.878
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.102
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.311
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.848
    additional property: Loudness (dB)
      type: PropertyValue
      value: -2.88
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor