21 Kelly
type: MusicGroup
popularity: 2
followers: 83
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfc3c826c8aa7989cfc644b90502270867a5c88dbc8833dddca9544566419359f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ea437078-d5d4-4bf3-ac4d-05d69fa469b7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ea437078-d5d4-4bf3-ac4d-05d69fa469b7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ea437078-d5d4-4bf3-ac4d-05d69fa469b7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfc3c826c8aa7989cfc644b90502270867a5c88dbc8833dddca9544566419359f","name":"21 Kelly","registered_at":"2026-06-21T10:35:09Z","symbol":"NIM1896268","token_address":"0x9be859e59f02ba10ace00e5188042c8af745692a","type":"artist","uuid":"ea437078-d5d4-4bf3-ac4d-05d69fa469b7"}
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 0xfc3c826c8aa7989cfc644b90502270867a5c88dbc8833dddca9544566419359f. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea437078-d5d4-4bf3-ac4d-05d69fa469b7.json and https://artists.proofprofile.net/proofs/artist/ea437078-d5d4-4bf3-ac4d-05d69fa469b7.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0xfc3c826c8aa7989cfc644b90502270867a5c88dbc8833dddca9544566419359f","name":"21 Kelly","registered_at":"2026-06-21T10:35:09Z","symbol":"NIM1896268","token_address":"0x9be859e59f02ba10ace00e5188042c8af745692a","type":"artist","uuid":"ea437078-d5d4-4bf3-ac4d-05d69fa469b7"}
album: Accra
  type: MusicAlbum
  date published: 2020-11-08
album: Target
  type: MusicAlbum
  date published: 2021-04-23
album: Young God Freestyle
  type: MusicAlbum
  date published: 2021-06-30
album: Beast
  type: MusicAlbum
  date published: 2021-09-03
album: Boogie
  type: MusicAlbum
  date published: 2021-12-01
album: El Jefe
  type: MusicAlbum
  date published: 2022-11-12
album: Maame
  type: MusicAlbum
  date published: 2023-05-31
  track: Maame
    type: MusicRecording
    duration: PT2M49S
    duration ms: 169482
    explicit: true
    by artist: 21 Kelly
    in album: Maame
      type: MusicAlbum
      date published: 2023-05-31
    isrc code: AUMEV2358865
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T04:52:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc96f58a40fd7a688224935097efe2df7261c52862dd17d96b2eba5d7be6a93ac
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959100
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959100
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2358865
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T05:29:55Z
    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 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 0xc96f58a40fd7a688224935097efe2df7261c52862dd17d96b2eba5d7be6a93ac. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2358865 — a six-check JSON result.
      date published: 2026-07-22T05:29:55Z
    audio: Maame
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 102.964
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.761
      additional property: Energy
        type: PropertyValue
        value: 0.789
      additional property: Speechiness
        type: PropertyValue
        value: 0.108
      additional property: Acousticness
        type: PropertyValue
        value: 0.196
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.123
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.615
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.984
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Just 21
  type: MusicAlbum
  date published: 2024-06-14
album: 1 Step
  type: MusicAlbum
  date published: 2024-10-21
album: Eazy
  type: MusicAlbum
  date published: 2025-03-11
album: Sikasem
  type: MusicAlbum
  date published: 2025-07-22
album: V I R A L - EP
  type: MusicAlbum
  date published: 2025-10-21