MHR & Koalaa
type: MusicGroup
popularity: 8
followers: 2049
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe0c8c1d0afdc9359201726146c7a59acfe16c905c14c2f44dbaed1cefbfba83d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954062
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954062
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/46da93d9-8239-4d80-985c-d6d218cdf5db.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/46da93d9-8239-4d80-985c-d6d218cdf5db.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/46da93d9-8239-4d80-985c-d6d218cdf5db
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:39:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe0c8c1d0afdc9359201726146c7a59acfe16c905c14c2f44dbaed1cefbfba83d","name":"MHR & Koalaa","registered_at":"2026-06-16T14:15:47Z","symbol":"NIM1077669","token_address":"0xddcd2009104584e5eaecfc6635419ec2de3d789e","type":"artist","uuid":"46da93d9-8239-4d80-985c-d6d218cdf5db"}
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 0xe0c8c1d0afdc9359201726146c7a59acfe16c905c14c2f44dbaed1cefbfba83d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46da93d9-8239-4d80-985c-d6d218cdf5db.json and https://artists.proofprofile.net/proofs/artist/46da93d9-8239-4d80-985c-d6d218cdf5db.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xe0c8c1d0afdc9359201726146c7a59acfe16c905c14c2f44dbaed1cefbfba83d","name":"MHR & Koalaa","registered_at":"2026-06-16T14:15:47Z","symbol":"NIM1077669","token_address":"0xddcd2009104584e5eaecfc6635419ec2de3d789e","type":"artist","uuid":"46da93d9-8239-4d80-985c-d6d218cdf5db"}
album: Smith & Wesson
  type: MusicAlbum
  date published: 2020-10-02
album: Papier
  type: MusicAlbum
  date published: 2020-11-04
album: Monter la pente
  type: MusicAlbum
  date published: 2020-11-25
album: Pirate
  type: MusicAlbum
  date published: 2020-12-02
album: Dans le four
  type: MusicAlbum
  date published: 2020-12-09
album: Le sang
  type: MusicAlbum
  date published: 2020-12-10
  track: Le sang
    type: MusicRecording
    duration: PT3M32S
    duration ms: 212349
    explicit: true
    by artist: MHR & Koalaa
    in album: Le sang
      type: MusicAlbum
      date published: 2020-12-10
    isrc code: DGA052037495
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T07:12:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0ad4222d04d1553a4dc239f5baf300e85e97ab8c3aeb2fa96a3562843fe9c77a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958520
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958520
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA052037495
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T08:19:09Z
    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 0x0ad4222d04d1553a4dc239f5baf300e85e97ab8c3aeb2fa96a3562843fe9c77a. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DGA052037495.
      date published: 2026-07-18T08:19:09Z
    audio: Le sang
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.07
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.796
      additional property: Energy
        type: PropertyValue
        value: 0.738
      additional property: Speechiness
        type: PropertyValue
        value: 0.277
      additional property: Acousticness
        type: PropertyValue
        value: 0.497
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.099
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.536
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.631
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Nos vies
  type: MusicAlbum
  date published: 2020-12-16
album: Tout l'été (Freestyle PureRap)
  type: MusicAlbum
  date published: 2021-08-25
album: A l'aise
  type: MusicAlbum
  date published: 2022-07-08
album: Nés dans l'ombre
  type: MusicAlbum
  date published: 2022-07-29