K-Libre
type: MusicGroup
genre: merengue
genre: tejano
popularity: 11
followers: 747
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcbdb24e6b99d298999b957dd4000f40be858db2ef6eb2352d76d4460878064c3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953645
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953645
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3f2dd64f-b226-4db4-9149-61d67d0990d2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3f2dd64f-b226-4db4-9149-61d67d0990d2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3f2dd64f-b226-4db4-9149-61d67d0990d2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T14:31:42Z
additional property: OTSCanonicalRecord
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 0xcbdb24e6b99d298999b957dd4000f40be858db2ef6eb2352d76d4460878064c3. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f2dd64f-b226-4db4-9149-61d67d0990d2.json and https://artists.proofprofile.net/proofs/artist/3f2dd64f-b226-4db4-9149-61d67d0990d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T14:31:42Z
album: Mambo Con...
  type: MusicAlbum
  date published: 1998
  track: Mi Graduación (Senior Prom)
    type: MusicRecording
    duration: PT4M16S
    duration ms: 256200
    explicit: false
    by artist: K-Libre
    in album: Mambo Con...
      type: MusicAlbum
      date published: 1998
    genre: merengue
    genre: tejano
    isrc code: US3Z42200213
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T18:51:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9cea6c5da800a687f59231db6b1c5a6cbe2d676f4b8a5fa04a122cd6863e418d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958771
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958771
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3Z42200213
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T21:52:43Z
    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 0x9cea6c5da800a687f59231db6b1c5a6cbe2d676f4b8a5fa04a122cd6863e418d. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:52:43Z), 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/US3Z42200213.
      date published: 2026-07-19T21:52:43Z
    audio: Mi Graduación (Senior Prom)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.18
      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: 0.897
      additional property: Energy
        type: PropertyValue
        value: 0.783
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.237
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.01
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.862
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.329
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Una Historia
  type: MusicAlbum
  date published: 2004
  track: Si Vuelves A Besarme Así - Ranchera
    type: MusicRecording
    duration: PT3M50S
    duration ms: 230960
    explicit: false
    by artist: K-Libre
    in album: Una Historia
      type: MusicAlbum
      date published: 2004
    genre: merengue
    genre: tejano
    isrc code: USUM72315333
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T21:02:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x14556867ff38e34af413b482643cbb42ff79c7ebb66c96b52d19ffa13e645495
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958063
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958063
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72315333
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T21:07:34Z
    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 0x14556867ff38e34af413b482643cbb42ff79c7ebb66c96b52d19ffa13e645495. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USUM72315333.
      date published: 2026-07-14T21:07:34Z
    audio: Si Vuelves A Besarme Así - Ranchera
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 175.238
      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: 0.496
      additional property: Energy
        type: PropertyValue
        value: 0.668
      additional property: Speechiness
        type: PropertyValue
        value: 0.05
      additional property: Acousticness
        type: PropertyValue
        value: 0.142
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.068
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Cuando Se Acaba El Amor - Cumbia
album: Hasta El Alma
album: Con Mucho K-Riiiño
album: Los Ataudes

Valence (Positivity)
type: PropertyValue
value: 0.775

Loudness (dB)
type: PropertyValue
value: -6.333

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

Cuando Se Acaba El Amor - Cumbia
type: MusicRecording
duration: PT3M23S
duration ms: 203640
explicit: false
by artist: K-Libre
in album: Una Historia
  type: MusicAlbum
  date published: 2004
genre: merengue
genre: tejano
isrc code: USUM72315331
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T11:55:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x41cf93b24ce64e836e9e84c2b04ff60df1480ed0de13b845bfa37bb98ccf0b9a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958728
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUM72315331
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T12:24:55Z
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 0x41cf93b24ce64e836e9e84c2b04ff60df1480ed0de13b845bfa37bb98ccf0b9a. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USUM72315331.
  date published: 2026-07-19T12:24:55Z
audio: Cuando Se Acaba El Amor - Cumbia
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.133
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.751
  additional property: Energy
    type: PropertyValue
    value: 0.521
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.067
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.071
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.864
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.233
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Hasta El Alma
type: MusicAlbum
date published: 2005

Con Mucho K-Riiiño
type: MusicAlbum
date published: 2011-09-13

Los Ataudes
type: MusicAlbum
date published: 2020-04-17