K-Libre 420
type: MusicGroup
genre: ragga
popularity: 3
followers: 121
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9b5e2da1b41a5aec8545f7b9dbd5cace3d3ea02e95d0e67adccedca3bcde5e7e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/98fa86d1-444a-4b20-8588-fcdfca01c74f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/98fa86d1-444a-4b20-8588-fcdfca01c74f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/98fa86d1-444a-4b20-8588-fcdfca01c74f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9b5e2da1b41a5aec8545f7b9dbd5cace3d3ea02e95d0e67adccedca3bcde5e7e","name":"K-Libre 420","registered_at":"2026-06-17T19:04:08Z","symbol":"NIM1489946","token_address":"0xeb47a3840690205907e31d84c875d8591a4d94ff","type":"artist","uuid":"98fa86d1-444a-4b20-8588-fcdfca01c74f"}
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 0x9b5e2da1b41a5aec8545f7b9dbd5cace3d3ea02e95d0e67adccedca3bcde5e7e. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98fa86d1-444a-4b20-8588-fcdfca01c74f.json and https://artists.proofprofile.net/proofs/artist/98fa86d1-444a-4b20-8588-fcdfca01c74f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x9b5e2da1b41a5aec8545f7b9dbd5cace3d3ea02e95d0e67adccedca3bcde5e7e","name":"K-Libre 420","registered_at":"2026-06-17T19:04:08Z","symbol":"NIM1489946","token_address":"0xeb47a3840690205907e31d84c875d8591a4d94ff","type":"artist","uuid":"98fa86d1-444a-4b20-8588-fcdfca01c74f"}
album: La Réunion
  type: MusicAlbum
  date published: 2011-03-17
album: Représente...
  type: MusicAlbum
  date published: 2011-07-08
  track: L'enfer
    type: MusicRecording
    duration: PT3M58S
    duration ms: 238426
    explicit: false
    by artist: K-Libre 420
    in album: Représente...
      type: MusicAlbum
      date published: 2011-07-08
    genre: ragga
    isrc code: FR6V80533646
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T18:41:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe78d5ee73833c2cfbb9998c29a0b2a4699641529df7578396b38a5028f65683e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958600
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958600
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80533646
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T19:24:05Z
    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 0xe78d5ee73833c2cfbb9998c29a0b2a4699641529df7578396b38a5028f65683e. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/FR6V80533646.
      date published: 2026-07-18T19:24:05Z
    audio: L'enfer
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 96.003
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.891
      additional property: Energy
        type: PropertyValue
        value: 0.553
      additional property: Speechiness
        type: PropertyValue
        value: 0.226
      additional property: Acousticness
        type: PropertyValue
        value: 0.081
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.092
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.82
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.005
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major