Mr Joker
type: MusicGroup
popularity: 3
followers: 198
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x46954879823180d80e1fdad0257138d0652bae9db216f63a344f539613d214b4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cea9f7c4-1eab-4fdb-8cdd-59009c637476.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cea9f7c4-1eab-4fdb-8cdd-59009c637476.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cea9f7c4-1eab-4fdb-8cdd-59009c637476
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x46954879823180d80e1fdad0257138d0652bae9db216f63a344f539613d214b4","name":"Mr Joker","registered_at":"2026-06-21T00:33:01Z","symbol":"NIM1763741","token_address":"0x3fedb23d2c3d0c0c8cd58e41ce285df1f123f4c1","type":"artist","uuid":"cea9f7c4-1eab-4fdb-8cdd-59009c637476"}
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 0x46954879823180d80e1fdad0257138d0652bae9db216f63a344f539613d214b4. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cea9f7c4-1eab-4fdb-8cdd-59009c637476.json and https://artists.proofprofile.net/proofs/artist/cea9f7c4-1eab-4fdb-8cdd-59009c637476.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x46954879823180d80e1fdad0257138d0652bae9db216f63a344f539613d214b4","name":"Mr Joker","registered_at":"2026-06-21T00:33:01Z","symbol":"NIM1763741","token_address":"0x3fedb23d2c3d0c0c8cd58e41ce285df1f123f4c1","type":"artist","uuid":"cea9f7c4-1eab-4fdb-8cdd-59009c637476"}
album: Alisema
  type: MusicAlbum
  date published: 2020-06-22
album: No Stress
  type: MusicAlbum
  date published: 2020-07-29
album: Respect
  type: MusicAlbum
  date published: 2020-08-14
album: Support Me
  type: MusicAlbum
  date published: 2020-11-07
album: Jegeza
  type: MusicAlbum
  date published: 2020-12-18
album: Ndakesera
  type: MusicAlbum
  date published: 2021-02-15
  track: Ndakesera
    type: MusicRecording
    duration: PT2M54S
    duration ms: 174428
    explicit: false
    by artist: Mr Joker
    in album: Ndakesera
      type: MusicAlbum
      date published: 2021-02-15
    isrc code: DGA072183310
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T19:29:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc1c92764dbb17765b8bd1d1a7958d710de47eac714e1c901c1c44dfe793cf764
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956728
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956728
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA072183310
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:43:49Z
    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 0xc1c92764dbb17765b8bd1d1a7958d710de47eac714e1c901c1c44dfe793cf764. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DGA072183310.
      date published: 2026-07-05T01:43:49Z
    audio: Ndakesera
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 102.021
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.935
      additional property: Energy
        type: PropertyValue
        value: 0.729
      additional property: Speechiness
        type: PropertyValue
        value: 0.258
      additional property: Acousticness
        type: PropertyValue
        value: 0.292
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.161
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.732
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.929
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Dede
  type: MusicAlbum
  date published: 2021-05-14
album: Kipi
  type: MusicAlbum
  date published: 2021-07-15
album: Sigamate
  type: MusicAlbum
  date published: 2021-08-16
album: Uruwambere
  type: MusicAlbum
  date published: 2021-11-23
album: Remote
  type: MusicAlbum
  date published: 2022-03-09
album: Don't
  type: MusicAlbum
  date published: 2022-05-25
album: Nshiramwo
  type: MusicAlbum
  date published: 2022-08-25
album: Oluwa
  type: MusicAlbum
  date published: 2024-04-04
album: Edeni
  type: MusicAlbum
  date published: 2024-05-31
album: My Journey
  type: MusicAlbum
  date published: 2025-02-24