Chef Kareem
type: MusicGroup
popularity: 2
followers: 72
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0709fc3628a91958d4725148f720ed9509d8d1ea0fd87a87fd97a46e022aae93
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953988
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953988
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2e52a5dc-a00f-4a6a-9c84-5c9e81fc2efe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2e52a5dc-a00f-4a6a-9c84-5c9e81fc2efe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2e52a5dc-a00f-4a6a-9c84-5c9e81fc2efe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T18:23:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0709fc3628a91958d4725148f720ed9509d8d1ea0fd87a87fd97a46e022aae93","name":"Chef Kareem","registered_at":"2026-06-16T05:40:37Z","symbol":"NIM0954734","token_address":"0x414c992c42da42621c717cd97372278cb653658f","type":"artist","uuid":"2e52a5dc-a00f-4a6a-9c84-5c9e81fc2efe"}
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 0x0709fc3628a91958d4725148f720ed9509d8d1ea0fd87a87fd97a46e022aae93. Chain 2 (Bitcoin): anchored in block 953988 (2026-06-16T18:23:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e52a5dc-a00f-4a6a-9c84-5c9e81fc2efe.json and https://artists.proofprofile.net/proofs/artist/2e52a5dc-a00f-4a6a-9c84-5c9e81fc2efe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T18:23:32Z
  text: {"copyright_id":"0x0709fc3628a91958d4725148f720ed9509d8d1ea0fd87a87fd97a46e022aae93","name":"Chef Kareem","registered_at":"2026-06-16T05:40:37Z","symbol":"NIM0954734","token_address":"0x414c992c42da42621c717cd97372278cb653658f","type":"artist","uuid":"2e52a5dc-a00f-4a6a-9c84-5c9e81fc2efe"}
track: Bistek Freestyle
  type: MusicRecording
  duration: PT3M40S
  duration ms: 220500
  explicit: false
  by artist: A. Tourist
  by artist: Tonnie Rico
  by artist: Zoop One
  by artist: OL P
  by artist: ATM FLAVOR
  by artist: Guty Vi
  by artist: Wabii
  by artist: Weseb
  by artist: Chef Kareem
  in album: Bistek Freestyle
    type: MusicAlbum
    date published: 2025-02-07
  isrc code: US7VG2597484
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-22T12:06:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xacc48cd457b7484e43dec331ece6428efd406a41699dfd1e9947a16d4ceb5bc1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959128
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959128
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG2597484
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T12:33:25Z
  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 0xacc48cd457b7484e43dec331ece6428efd406a41699dfd1e9947a16d4ceb5bc1. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/US7VG2597484.
    date published: 2026-07-22T12:33:25Z
  audio: Bistek Freestyle
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 158.831
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.77
    additional property: Energy
      type: PropertyValue
      value: 0.548
    additional property: Speechiness
      type: PropertyValue
      value: 0.063
    additional property: Acousticness
      type: PropertyValue
      value: 0.087
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.112
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.395
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.374
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major