Lenny Fierro
type: MusicGroup
genre: latin pop
popularity: 27
followers: 2320
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa46a254f693213d1c0dcdb9be3d7ceaf1dbe448bcda7a15028b1ade29a594191
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/5fbfb860-45e4-4740-b5c8-7e969d0c31cc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5fbfb860-45e4-4740-b5c8-7e969d0c31cc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5fbfb860-45e4-4740-b5c8-7e969d0c31cc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa46a254f693213d1c0dcdb9be3d7ceaf1dbe448bcda7a15028b1ade29a594191","name":"Lenny Fierro","registered_at":"2026-06-11T22:42:01Z","symbol":"NIM0125292","token_address":"0x8b97dcb7f645926b32509e27a049b490be7e023f","type":"artist","uuid":"5fbfb860-45e4-4740-b5c8-7e969d0c31cc"}
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 0xa46a254f693213d1c0dcdb9be3d7ceaf1dbe448bcda7a15028b1ade29a594191. 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/5fbfb860-45e4-4740-b5c8-7e969d0c31cc.json and https://artists.proofprofile.net/proofs/artist/5fbfb860-45e4-4740-b5c8-7e969d0c31cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xa46a254f693213d1c0dcdb9be3d7ceaf1dbe448bcda7a15028b1ade29a594191","name":"Lenny Fierro","registered_at":"2026-06-11T22:42:01Z","symbol":"NIM0125292","token_address":"0x8b97dcb7f645926b32509e27a049b490be7e023f","type":"artist","uuid":"5fbfb860-45e4-4740-b5c8-7e969d0c31cc"}
album: A Tiempo
  type: MusicAlbum
  date published: 2017-07-23
album: A Tiempo
  type: MusicAlbum
  date published: 2018-08-24
  track: Atado a Tu Amor
    type: MusicRecording
    duration: PT4M36S
    duration ms: 276946
    explicit: false
    by artist: Lenny Fierro
    in album: A Tiempo
      type: MusicAlbum
      date published: 2018-08-24
    genre: latin pop
    isrc code: TCADE1762736
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T19:18:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x50f4b7dae003209f91d526007072ac2647bc1e551e048a9f4a1e4f3b21d403a6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADE1762736
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f4b7dae003209f91d526007072ac2647bc1e551e048a9f4a1e4f3b21d403a6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADE1762736.
      date published: 2026-07-05T01:12:41Z
    audio: Atado a Tu Amor
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 169.925
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.677
      additional property: Energy
        type: PropertyValue
        value: 0.827
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.542
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.152
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.687
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.089
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: A Tiempo
  type: MusicAlbum
  date published: 2018-08-24
album: PARTY
  type: MusicAlbum
  date published: 2020-12-11
album: PARTY
  type: MusicAlbum
  date published: 2020-12-11
album: NO HAY PROBLEMA
  type: MusicAlbum
  date published: 2021-03-05
album: NO HAY PROBLEMA
  type: MusicAlbum
  date published: 2021-03-05
album: Tengo
  type: MusicAlbum
  date published: 2021-05-14
  track: Tengo - Versión Salsa
    type: MusicRecording
    duration: PT3M31S
    duration ms: 211625
    explicit: false
    by artist: Lenny Fierro
    in album: Tengo
      type: MusicAlbum
      date published: 2021-05-14
    genre: latin pop
    isrc code: SE6I32141746
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T15:51:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb92501647426217a6b717fb5eb42be1b39b0d6687b568cf184b60d1e9125291e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958576
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958576
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32141746
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T16:22:28Z
    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 0xb92501647426217a6b717fb5eb42be1b39b0d6687b568cf184b60d1e9125291e. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/SE6I32141746.
      date published: 2026-07-18T16:22:28Z
    audio: Tengo - Versión Salsa
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.999
      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
      additional property: Energy
      additional property: Speechiness
      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: Nuestras Canciones
album: Sufre Solita
album: Sin Tí
album: Me Duele Cali (Acoustic Version)
album: Mi País
album: Cuanto Valgo
album: Mil Capítulos (Version Pop)
album: Mil Capítulos (Versión Urbana)
album: Dime Niña
album: Fantasma

Danceability
type: PropertyValue
value: 0.723

Energy
type: PropertyValue
value: 0.983

Speechiness
type: PropertyValue
value: 0.051

Acousticness
type: PropertyValue
value: 0.258

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.139

Valence (Positivity)
type: PropertyValue
value: 0.886

Loudness (dB)
type: PropertyValue
value: -1.112

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor

Nuestras Canciones
type: MusicAlbum
date published: 2021-05-14

Sufre Solita
type: MusicAlbum
date published: 2021-05-28

Sin Tí
type: MusicAlbum
date published: 2021-05-28

Me Duele Cali (Acoustic Version)
type: MusicAlbum
date published: 2021-06-04

Mi País
type: MusicAlbum
date published: 2021-06-18

Cuanto Valgo
type: MusicAlbum
date published: 2021-06-25

Mil Capítulos (Version Pop)
type: MusicAlbum
date published: 2021-09-17

Mil Capítulos (Versión Urbana)
type: MusicAlbum
date published: 2023-11-30

Dime Niña
type: MusicAlbum
date published: 2023-12-22

Fantasma
type: MusicAlbum
date published: 2024-03-11