Cleo Brown
type: MusicGroup
genre: electro swing
genre: ragtime
genre: swing music
description: Cleopatra Brown (December 8, 1909 or 1909 – April 15, 1995), known as Cleo Brown, C. Patra Brown or Cleo Patra Brown, was an American blues and jazz vocalist and pianist. She was the first woman inst
popularity: 7
followers: 62
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd0529f6a87951a3f7a48ac50355d3b3dac8a61003a9122b3cb5f1284d0ac75a6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b8c688f9-b588-418c-b811-5a8d3b16d3fa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b8c688f9-b588-418c-b811-5a8d3b16d3fa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b8c688f9-b588-418c-b811-5a8d3b16d3fa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd0529f6a87951a3f7a48ac50355d3b3dac8a61003a9122b3cb5f1284d0ac75a6","name":"Cleo Brown","registered_at":"2026-06-20T16:13:47Z","symbol":"NIM1650608","token_address":"0x051a678b0c692914415b00aa9eeed4b95dab108e","type":"artist","uuid":"b8c688f9-b588-418c-b811-5a8d3b16d3fa"}
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 0xd0529f6a87951a3f7a48ac50355d3b3dac8a61003a9122b3cb5f1284d0ac75a6. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b8c688f9-b588-418c-b811-5a8d3b16d3fa.json and https://artists.proofprofile.net/proofs/artist/b8c688f9-b588-418c-b811-5a8d3b16d3fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0xd0529f6a87951a3f7a48ac50355d3b3dac8a61003a9122b3cb5f1284d0ac75a6","name":"Cleo Brown","registered_at":"2026-06-20T16:13:47Z","symbol":"NIM1650608","token_address":"0x051a678b0c692914415b00aa9eeed4b95dab108e","type":"artist","uuid":"b8c688f9-b588-418c-b811-5a8d3b16d3fa"}
album: Here Comes Cleo
  type: MusicAlbum
  date published: 2001-02-27
  track: When Hollywood Goes Black and Tan
    type: MusicRecording
    duration: PT2M45S
    duration ms: 165933
    explicit: false
    by artist: Cleo Brown
    in album: Here Comes Cleo
      type: MusicAlbum
      date published: 2001-02-27
    genre: electro swing
    genre: ragtime
    genre: swing music
    isrc code: QM4TX2321545
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T00:18:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7caca94cf3694485bff29badfe97b766e099207fcb5ad02f957e9545da1e199e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958091
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958091
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2321545
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T03:17:03Z
    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 0x7caca94cf3694485bff29badfe97b766e099207fcb5ad02f957e9545da1e199e. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QM4TX2321545.
      date published: 2026-07-15T03:17:03Z
    audio: When Hollywood Goes Black and Tan
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.694
      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: 0.739
      additional property: Energy
        type: PropertyValue
        value: 0.295
      additional property: Speechiness
        type: PropertyValue
        value: 0.114
      additional property: Acousticness
        type: PropertyValue
        value: 0.947
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.099
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.862
      additional property: Loudness (dB)
        type: PropertyValue
        value: -17.309
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor