La Cru
type: MusicGroup
popularity: 7
followers: 1049
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2bf1a51c8e081301ebfc7384809ede2eb4d75afe345cb3b8d3daa1e012d8f1ba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/849953e1-1e3c-4368-ac87-a6ae94f383c3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/849953e1-1e3c-4368-ac87-a6ae94f383c3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/849953e1-1e3c-4368-ac87-a6ae94f383c3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2bf1a51c8e081301ebfc7384809ede2eb4d75afe345cb3b8d3daa1e012d8f1ba","name":"La Cru","registered_at":"2026-06-17T12:15:31Z","symbol":"NIM1392495","token_address":"0x11df7c03332f24f4d69eee7108a34430e920e36b","type":"artist","uuid":"849953e1-1e3c-4368-ac87-a6ae94f383c3"}
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 0x2bf1a51c8e081301ebfc7384809ede2eb4d75afe345cb3b8d3daa1e012d8f1ba. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/849953e1-1e3c-4368-ac87-a6ae94f383c3.json and https://artists.proofprofile.net/proofs/artist/849953e1-1e3c-4368-ac87-a6ae94f383c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x2bf1a51c8e081301ebfc7384809ede2eb4d75afe345cb3b8d3daa1e012d8f1ba","name":"La Cru","registered_at":"2026-06-17T12:15:31Z","symbol":"NIM1392495","token_address":"0x11df7c03332f24f4d69eee7108a34430e920e36b","type":"artist","uuid":"849953e1-1e3c-4368-ac87-a6ae94f383c3"}
album: Impulso
  type: MusicAlbum
  date published: 2017-01-09
album: Impulso
  type: MusicAlbum
  date published: 2017-01-09
album: Buena Madera
  type: MusicAlbum
  date published: 2018-11-20
album: Buena Madera
  type: MusicAlbum
  date published: 2018-11-20
album: Rocket
  type: MusicAlbum
  date published: 2019-06-15
  track: Rocket
    type: MusicRecording
    duration: PT3M16S
    duration ms: 196619
    explicit: false
    by artist: La Cru
    in album: Rocket
      type: MusicAlbum
      date published: 2019-06-15
    isrc code: QZFYY1923074
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T01:05:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfdbc5e7d2093d6ac3e88320cf44ca4474034ddf4b7bd372cb539675ffe230f0e
    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/QZFYY1923074
    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 0xfdbc5e7d2093d6ac3e88320cf44ca4474034ddf4b7bd372cb539675ffe230f0e. 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/QZFYY1923074.
      date published: 2026-07-04T10:04:33Z
    audio: Rocket
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 88.231
      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: 0.699
      additional property: Energy
        type: PropertyValue
        value: 0.402
      additional property: Speechiness
        type: PropertyValue
        value: 0.477
      additional property: Acousticness
        type: PropertyValue
        value: 0.073
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.124
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.533
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.197
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Rocket
  type: MusicAlbum
  date published: 2019-06-15
album: La Ola
  type: MusicAlbum
  date published: 2019-08-08
album: Elevating
  type: MusicAlbum
  date published: 2019-12-20
album: Dos Pasos
  type: MusicAlbum
  date published: 2020-08-07
album: Stylin'
  type: MusicAlbum
  date published: 2020-10-23