Oumou Demba
type: MusicGroup
popularity: 6
followers: 671
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe1aca91caeec588cc911cdad5b3105758d8ee53e9ebb510da3dbd0651a6e74e7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953932
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953932
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1f45e749-5fbf-44cf-8119-3fb9a3b07075.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1f45e749-5fbf-44cf-8119-3fb9a3b07075.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1f45e749-5fbf-44cf-8119-3fb9a3b07075
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe1aca91caeec588cc911cdad5b3105758d8ee53e9ebb510da3dbd0651a6e74e7","name":"Oumou Demba","registered_at":"2026-06-16T00:29:55Z","symbol":"NIM0880516","token_address":"0x3d4b541c19b050feda73c867e7cd90cc59f39b76","type":"artist","uuid":"1f45e749-5fbf-44cf-8119-3fb9a3b07075"}
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 0xe1aca91caeec588cc911cdad5b3105758d8ee53e9ebb510da3dbd0651a6e74e7. Chain 2 (Bitcoin): anchored in block 953932 (2026-06-16T11:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f45e749-5fbf-44cf-8119-3fb9a3b07075.json and https://artists.proofprofile.net/proofs/artist/1f45e749-5fbf-44cf-8119-3fb9a3b07075.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:10:43Z
  text: {"copyright_id":"0xe1aca91caeec588cc911cdad5b3105758d8ee53e9ebb510da3dbd0651a6e74e7","name":"Oumou Demba","registered_at":"2026-06-16T00:29:55Z","symbol":"NIM0880516","token_address":"0x3d4b541c19b050feda73c867e7cd90cc59f39b76","type":"artist","uuid":"1f45e749-5fbf-44cf-8119-3fb9a3b07075"}
album: BARIKA
  type: MusicAlbum
  date published: 2024-07-20
  track: BARIKA
    type: MusicRecording
    duration: PT3M17S
    duration ms: 197625
    explicit: false
    by artist: Oumou Demba
    in album: BARIKA
      type: MusicAlbum
      date published: 2024-07-20
    isrc code: NEKSW2400183
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T19:34:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x65f34b3ed34f150626c92051def2e06dd607add08aea753aa291d90d4918b69a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957754
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957754
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NEKSW2400183
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T21:26:22Z
    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 0x65f34b3ed34f150626c92051def2e06dd607add08aea753aa291d90d4918b69a. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/NEKSW2400183.
      date published: 2026-07-12T21:26:22Z
    audio: BARIKA
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.19
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.698
      additional property: Energy
        type: PropertyValue
        value: 0.877
      additional property: Speechiness
        type: PropertyValue
        value: 0.321
      additional property: Acousticness
        type: PropertyValue
        value: 0.67
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.304
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.877
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.549
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Djina Djorobo
  type: MusicAlbum
  date published: 2024-09-23
album: Oumou Sinata Fassa
  type: MusicAlbum
  date published: 2025-07-21