LA LIBRETA 01
type: MusicGroup
popularity: 7
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x86d58165ba5b9d204a89aa93e08ed5adf9f7ffcaabbbba4504314ae251325eeb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953869
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953869
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/066e43f9-5f16-421e-b3b6-eb3e2a5122a7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/066e43f9-5f16-421e-b3b6-eb3e2a5122a7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/066e43f9-5f16-421e-b3b6-eb3e2a5122a7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:20:04Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x86d58165ba5b9d204a89aa93e08ed5adf9f7ffcaabbbba4504314ae251325eeb","name":"LA LIBRETA 01","registered_at":"2026-06-15T15:50:08Z","symbol":"NIM0756496","token_address":"0x8742430ceb75158834186aa1d5ebe730a5fc8aaa","type":"artist","uuid":"066e43f9-5f16-421e-b3b6-eb3e2a5122a7"}
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 0x86d58165ba5b9d204a89aa93e08ed5adf9f7ffcaabbbba4504314ae251325eeb. Chain 2 (Bitcoin): anchored in block 953869 (2026-06-16T01:20:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/066e43f9-5f16-421e-b3b6-eb3e2a5122a7.json and https://artists.proofprofile.net/proofs/artist/066e43f9-5f16-421e-b3b6-eb3e2a5122a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T01:20:04Z
  text: {"copyright_id":"0x86d58165ba5b9d204a89aa93e08ed5adf9f7ffcaabbbba4504314ae251325eeb","name":"LA LIBRETA 01","registered_at":"2026-06-15T15:50:08Z","symbol":"NIM0756496","token_address":"0x8742430ceb75158834186aa1d5ebe730a5fc8aaa","type":"artist","uuid":"066e43f9-5f16-421e-b3b6-eb3e2a5122a7"}
album: Verano
  type: MusicAlbum
  date published: 2025-09-15
  track: Verano
    type: MusicRecording
    duration: PT3M29S
    duration ms: 209320
    explicit: false
    by artist: LA LIBRETA 01
    in album: Verano
      type: MusicAlbum
      date published: 2025-09-15
    isrc code: QZZ7X2555263
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T07:45:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb8b66e449a65458f1ae04f83cac120e57587b2d1586b1d42a52abec89014b213
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958846
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958846
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7X2555263
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T08:14:15Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b66e449a65458f1ae04f83cac120e57587b2d1586b1d42a52abec89014b213. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QZZ7X2555263.
      date published: 2026-07-20T08:14:15Z
    audio: Verano
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.988
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.871
      additional property: Energy
        type: PropertyValue
        value: 0.407
      additional property: Speechiness
        type: PropertyValue
        value: 0.12
      additional property: Acousticness
        type: PropertyValue
        value: 0.361
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.235
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.511
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.971
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Summer
  type: MusicAlbum
  date published: 2025-09-15
  track: Summer
    type: MusicRecording
    duration: PT1M59S
    duration ms: 119920
    explicit: false
    by artist: LA LIBRETA 01
    in album: Summer
      type: MusicAlbum
      date published: 2025-09-15
    isrc code: QZZ7X2555261
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T20:08:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6dbe53c95cac346e9f0d960ccea2c8aa82c6aa20d9d11577b783ffb94a12aefd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958931
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958931
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7X2555261
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T21:15:01Z
    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 0x6dbe53c95cac346e9f0d960ccea2c8aa82c6aa20d9d11577b783ffb94a12aefd. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZZ7X2555261.
      date published: 2026-07-20T21:15:01Z
    audio: Summer
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 173.986
      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: 0.695
      additional property: Energy
        type: PropertyValue
        value: 0.334
      additional property: Speechiness
        type: PropertyValue
        value: 0.091
      additional property: Acousticness
        type: PropertyValue
        value: 0.491
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.014
      additional property: Liveness
        type: PropertyValue
        value: 0.163
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.656
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Curar el alma
album: Balada
album: Bachata
album: Ritmo con sabor
album: Intense
album: Pequeña canción
album: El agua sin cause
album: El perdón

Loudness (dB)
type: PropertyValue
value: -12.974

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor

Curar el alma
type: MusicAlbum
date published: 2025-09-15

Balada
type: MusicAlbum
date published: 2025-09-15

Bachata
type: MusicAlbum
date published: 2025-09-15

Ritmo con sabor
type: MusicAlbum
date published: 2025-10-08

Intense
type: MusicAlbum
date published: 2025-10-08

Pequeña canción
type: MusicAlbum
date published: 2025-10-08

El agua sin cause
type: MusicAlbum
date published: 2025-10-08

El perdón
type: MusicAlbum
date published: 2025-10-08
track: El perdón
  type: MusicRecording
  duration: PT1M54S
  duration ms: 114000
  explicit: false
  by artist: LA LIBRETA 01
  in album: El perdón
    type: MusicAlbum
    date published: 2025-10-08
  isrc code: QT3FB2527142
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T12:21:52+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7b6048f6d1f21a1647e6a01ebc4071e2c9afba1333b0a03579c812173fd38a38
  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/QT3FB2527142
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T12:33:53Z
  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 0x7b6048f6d1f21a1647e6a01ebc4071e2c9afba1333b0a03579c812173fd38a38. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/QT3FB2527142.
    date published: 2026-07-20T12:33:53Z
  audio: El perdón
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 118.595
    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: 0.678
    additional property: Energy
      type: PropertyValue
      value: 0.254
    additional property: Speechiness
      type: PropertyValue
      value: 0.049
    additional property: Acousticness
      type: PropertyValue
      value: 0.794
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.105
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.323
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.068
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major