Norman Tapambwa & Zenya Expresso
type: MusicGroup
genre: rumba congolaise
popularity: 5
followers: 691
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x79049d911289175cd41abe1254c4b57c34790218a43e0900fdab1a57f87b3e66
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7db0bca-90d5-440d-958e-e53391a6e621.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7db0bca-90d5-440d-958e-e53391a6e621.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a7db0bca-90d5-440d-958e-e53391a6e621
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x79049d911289175cd41abe1254c4b57c34790218a43e0900fdab1a57f87b3e66","name":"Norman Tapambwa & Zenya Expresso","registered_at":"2026-06-20T08:00:19Z","symbol":"NIM1563172","token_address":"0x38697b3ad17058a0d18bb69523439519004c351b","type":"artist","uuid":"a7db0bca-90d5-440d-958e-e53391a6e621"}
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 0x79049d911289175cd41abe1254c4b57c34790218a43e0900fdab1a57f87b3e66. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7db0bca-90d5-440d-958e-e53391a6e621.json and https://artists.proofprofile.net/proofs/artist/a7db0bca-90d5-440d-958e-e53391a6e621.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x79049d911289175cd41abe1254c4b57c34790218a43e0900fdab1a57f87b3e66","name":"Norman Tapambwa & Zenya Expresso","registered_at":"2026-06-20T08:00:19Z","symbol":"NIM1563172","token_address":"0x38697b3ad17058a0d18bb69523439519004c351b","type":"artist","uuid":"a7db0bca-90d5-440d-958e-e53391a6e621"}
album: Mbama Yegudo
  type: MusicAlbum
  date published: 2009-01-01
  track: Ziso
    type: MusicRecording
    duration: PT9M23S
    duration ms: 563594
    explicit: false
    by artist: Norman Tapambwa & Zenya Expresso
    in album: Mbama Yegudo
      type: MusicAlbum
      date published: 2009-01-01
    genre: rumba congolaise
    isrc code: GB96Z1101809
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T06:52:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3862c17e839262a33d667f1a8b51ba659b7afd04054fcc20cc45f32fe2d7b48d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959107
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959107
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB96Z1101809
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T07:19:23Z
    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 0x3862c17e839262a33d667f1a8b51ba659b7afd04054fcc20cc45f32fe2d7b48d. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/GB96Z1101809.
      date published: 2026-07-22T07:19:23Z
    audio: Ziso
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.877
      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: 0.592
      additional property: Energy
        type: PropertyValue
        value: 0.838
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.016
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.093
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.802
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.371
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major