Cheba Rajwa
type: MusicGroup
genre: raï
popularity: 3
followers: 143
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd085f537eefed871e7f98262cb3a02ad549798cfb1ffb2246ce97856f9274128
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ab31b0b1-37ea-4a5a-a89f-9482ae800c97.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ab31b0b1-37ea-4a5a-a89f-9482ae800c97.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ab31b0b1-37ea-4a5a-a89f-9482ae800c97
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd085f537eefed871e7f98262cb3a02ad549798cfb1ffb2246ce97856f9274128","name":"Cheba Rajwa","registered_at":"2026-06-20T09:40:27Z","symbol":"NIM1581470","token_address":"0x3c3719afc3df2636dcc27ae321c202ef0b7b697a","type":"artist","uuid":"ab31b0b1-37ea-4a5a-a89f-9482ae800c97"}
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 0xd085f537eefed871e7f98262cb3a02ad549798cfb1ffb2246ce97856f9274128. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab31b0b1-37ea-4a5a-a89f-9482ae800c97.json and https://artists.proofprofile.net/proofs/artist/ab31b0b1-37ea-4a5a-a89f-9482ae800c97.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0xd085f537eefed871e7f98262cb3a02ad549798cfb1ffb2246ce97856f9274128","name":"Cheba Rajwa","registered_at":"2026-06-20T09:40:27Z","symbol":"NIM1581470","token_address":"0x3c3719afc3df2636dcc27ae321c202ef0b7b697a","type":"artist","uuid":"ab31b0b1-37ea-4a5a-a89f-9482ae800c97"}
album: Apres
  type: MusicAlbum
  date published: 2024-04-10
  track: Apres
    type: MusicRecording
    duration: PT3M21S
    duration ms: 201298
    explicit: false
    by artist: Cheba Rajwa
    in album: Apres
      type: MusicAlbum
      date published: 2024-04-10
    genre: raï
    isrc code: ING212479602
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T09:05:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0114a56fc8302326f3382288163317eb772f90d754be85736c23d87f7848657f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ING212479602
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T12:06:19Z
    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 0x0114a56fc8302326f3382288163317eb772f90d754be85736c23d87f7848657f. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:06:19Z), 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/ING212479602.
      date published: 2026-07-20T12:06:19Z
    audio: Apres
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 93.966
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.618
      additional property: Energy
        type: PropertyValue
        value: 0.884
      additional property: Speechiness
        type: PropertyValue
        value: 0.115
      additional property: Acousticness
        type: PropertyValue
        value: 0.17
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.236
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.878
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.073
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major