R & K African Sounds
type: MusicGroup
genre: rumba congolaise
popularity: 7
followers: 1585
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x349b97833dc2cfef08e105466fce5b4323436611c2710e620ee5da5481682a80
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9e0919c2-51cd-414e-ad4c-8db7afaa84e9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9e0919c2-51cd-414e-ad4c-8db7afaa84e9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9e0919c2-51cd-414e-ad4c-8db7afaa84e9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x349b97833dc2cfef08e105466fce5b4323436611c2710e620ee5da5481682a80","name":"R & K African Sounds","registered_at":"2026-06-20T04:39:41Z","symbol":"NIM1514887","token_address":"0xe12e68ff55d591ad216ec92126f4cd86c39a0de2","type":"artist","uuid":"9e0919c2-51cd-414e-ad4c-8db7afaa84e9"}
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 0x349b97833dc2cfef08e105466fce5b4323436611c2710e620ee5da5481682a80. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e0919c2-51cd-414e-ad4c-8db7afaa84e9.json and https://artists.proofprofile.net/proofs/artist/9e0919c2-51cd-414e-ad4c-8db7afaa84e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0x349b97833dc2cfef08e105466fce5b4323436611c2710e620ee5da5481682a80","name":"R & K African Sounds","registered_at":"2026-06-20T04:39:41Z","symbol":"NIM1514887","token_address":"0xe12e68ff55d591ad216ec92126f4cd86c39a0de2","type":"artist","uuid":"9e0919c2-51cd-414e-ad4c-8db7afaa84e9"}
album: Raramo
  type: MusicAlbum
  date published: 2000-01-01
  track: Ndafunga Kawiri
    type: MusicRecording
    duration: PT10M51S
    duration ms: 651180
    explicit: false
    by artist: R & K African Sounds
    in album: Raramo
      type: MusicAlbum
      date published: 2000-01-01
    genre: rumba congolaise
    isrc code: GB96Z1101288
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T02:37:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x92a6d258b3fb27e7d1b562e34835b88bb817fc1824064d3a7da44857a252c01a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958823
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958823
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB96Z1101288
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T04:29:18Z
    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 0x92a6d258b3fb27e7d1b562e34835b88bb817fc1824064d3a7da44857a252c01a. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/GB96Z1101288.
      date published: 2026-07-20T04:29:18Z
    audio: Ndafunga Kawiri
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 133.96
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.51
      additional property: Energy
        type: PropertyValue
        value: 0.856
      additional property: Speechiness
        type: PropertyValue
        value: 0.083
      additional property: Acousticness
        type: PropertyValue
        value: 0.081
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.34
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.894
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.044
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Takarangana
    type: MusicRecording
    duration: PT10M29S
    duration ms: 629725
    explicit: false
    by artist: R & K African Sounds
    in album: Raramo
      type: MusicAlbum
      date published: 2000-01-01
    genre: rumba congolaise
    isrc code: GB96Z1101289
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T09:37:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xaa2ca9497311a4bf6028a93d663795b34f851afd10a5ce12ea3fe512be564b04
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958991
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958991
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB96Z1101289
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T10:04:40Z
    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 0xaa2ca9497311a4bf6028a93d663795b34f851afd10a5ce12ea3fe512be564b04. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/GB96Z1101289.
      date published: 2026-07-21T10:04:40Z
    audio: Takarangana
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 134.378
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.474
      additional property: Energy
        type: PropertyValue
        value: 0.864
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.494
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.311
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.906
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Tsetswa
album: Super Selection
album: Mhemberero

Loudness (dB)
type: PropertyValue
value: -7.659

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Tsetswa
type: MusicRecording
duration: PT10M20S
duration ms: 620901
explicit: false
by artist: R & K African Sounds
in album: Raramo
  type: MusicAlbum
  date published: 2000-01-01
genre: rumba congolaise
isrc code: GB96Z1101290
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T19:11:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6cbfc518f05e3ccf424b97003d7f2cf54d7de77e3a32396dab842a9dae859c0a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956725
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956725
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB96Z1101290
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:12:41Z
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 0x6cbfc518f05e3ccf424b97003d7f2cf54d7de77e3a32396dab842a9dae859c0a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GB96Z1101290.
  date published: 2026-07-05T01:12:41Z
audio: Tsetswa
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.128
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.52
  additional property: Energy
    type: PropertyValue
    value: 0.755
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.628
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.502
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.878
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.223
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Super Selection
type: MusicAlbum
date published: 2007

Mhemberero
type: MusicAlbum
date published: 2023-05-19