Helder Rei Do Kuduro
type: MusicGroup
genre: afro house
genre: kizomba
genre: kuduro
popularity: 19
followers: 3974
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x52b868c7c3729adb234dfd33626684395ab2b3b540d29d5a192be2974b72d107
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953772
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953772
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c8b6d786-6626-4183-a2c6-0d72866dabb8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c8b6d786-6626-4183-a2c6-0d72866dabb8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c8b6d786-6626-4183-a2c6-0d72866dabb8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T10:33:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x52b868c7c3729adb234dfd33626684395ab2b3b540d29d5a192be2974b72d107","name":"Helder Rei Do Kuduro","registered_at":"2026-06-15T01:33:04Z","symbol":"NIM0640229","token_address":"0x57bc2c28ba630bea551dd90d7890b4db65c6dc0a","type":"artist","uuid":"c8b6d786-6626-4183-a2c6-0d72866dabb8"}
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 0x52b868c7c3729adb234dfd33626684395ab2b3b540d29d5a192be2974b72d107. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8b6d786-6626-4183-a2c6-0d72866dabb8.json and https://artists.proofprofile.net/proofs/artist/c8b6d786-6626-4183-a2c6-0d72866dabb8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0x52b868c7c3729adb234dfd33626684395ab2b3b540d29d5a192be2974b72d107","name":"Helder Rei Do Kuduro","registered_at":"2026-06-15T01:33:04Z","symbol":"NIM0640229","token_address":"0x57bc2c28ba630bea551dd90d7890b4db65c6dc0a","type":"artist","uuid":"c8b6d786-6626-4183-a2c6-0d72866dabb8"}
album: Ladies Night
  type: MusicAlbum
  date published: 2003-06-18
  track: Ladies Night (Lady's Night)
    type: MusicRecording
    duration: PT5M20S
    duration ms: 320786
    explicit: false
    by artist: Helder Rei Do Kuduro
    in album: Ladies Night
      type: MusicAlbum
      date published: 2003-06-18
    genre: afro house
    genre: kizomba
    genre: kuduro
    isrc code: USA371661478
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T22:48:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcc45a582b8b745969baba9d4af04dd7d17d3158c154d790ee9cf448f7f773bd8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371661478
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0xcc45a582b8b745969baba9d4af04dd7d17d3158c154d790ee9cf448f7f773bd8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USA371661478.
      date published: 2026-07-06T01:25:57Z
    audio: Ladies Night (Lady's Night)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.428
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.882
      additional property: Energy
        type: PropertyValue
        value: 0.933
      additional property: Speechiness
        type: PropertyValue
        value: 0.292
      additional property: Acousticness
        type: PropertyValue
        value: 0.02
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.187
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.664
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.013
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Frique Frique (2011 Remixes)
  type: MusicAlbum
  date published: 2011-10-05
album: Angola Me Leva Pais do Futuro (Music from Cape Verde)
  type: MusicAlbum
  date published: 2012
  track: Festa da Paz
    type: MusicRecording
    duration: PT3M39S
    duration ms: 219066
    explicit: false
    by artist: Helder Rei Do Kuduro
    in album: Angola Me Leva Pais do Futuro (Music from Cape Verde)
      type: MusicAlbum
      date published: 2012
    genre: afro house
    genre: kizomba
    genre: kuduro
    isrc code: FR54E1201712
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T18:03:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf83fcd4457161c52c71a69bd2249f9053a71b64aa02d7bd49321bb77e87ecf78
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958771
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958771
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR54E1201712
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T21:03:20Z
    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 0xf83fcd4457161c52c71a69bd2249f9053a71b64aa02d7bd49321bb77e87ecf78. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:03:20Z), 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/FR54E1201712.
      date published: 2026-07-19T21:03:20Z
    audio: Festa da Paz
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.918
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.796
      additional property: Energy
        type: PropertyValue
        value: 0.966
      additional property: Speechiness
        type: PropertyValue
        value: 0.337
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Angola Me Leva País Do Futuro
album: The Best Of (Mix)
album: Frique Frique
album: Nova Onda Brig Brig
album: Felicidade Se Bem
album: Com Fusão
album: Para Dar Mais Raiva
track: Tarracha

Tarracha
type: MusicRecording
duration: PT2M34S
duration ms: 154440
explicit: false
by artist: Helder Rei Do Kuduro
by artist: Dj Danilo
in album: Kizomba Mix
  type: MusicAlbum
  date published: 2014-04-28
isrc code: QMFMF1414670
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T15:15:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x718b1b2d5a818a3e65e9fc884d6ef8bd4284ab1d75ccbd8cf4786b88aef687e7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF1414670
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718b1b2d5a818a3e65e9fc884d6ef8bd4284ab1d75ccbd8cf4786b88aef687e7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMFMF1414670.
  date published: 2026-07-02T03:55:08Z
audio: Tarracha
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 168.614
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.734
  additional property: Energy
    type: PropertyValue
    value: 0.732
  additional property: Speechiness
    type: PropertyValue
    value: 0.265
  additional property: Acousticness
    type: PropertyValue
    value: 0.011
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.007
  additional property: Liveness
    type: PropertyValue
    value: 0.265
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.559
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.574
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Acousticness
type: PropertyValue
value: 0.03

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.338

Valence (Positivity)
type: PropertyValue
value: 0.798

Loudness (dB)
type: PropertyValue
value: -2.556

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Major

Angola Me Leva País Do Futuro
type: MusicAlbum
date published: 2012-12-04

The Best Of (Mix)
type: MusicAlbum
date published: 2015-11-13

Frique Frique
type: MusicAlbum
date published: 2015-11-13

Nova Onda Brig Brig
type: MusicAlbum
date published: 2015-11-13

Felicidade Se Bem
type: MusicAlbum
date published: 2015-11-13
track: Jacobino
  type: MusicRecording
  duration: PT3M44S
  duration ms: 224933
  explicit: false
  by artist: Helder Rei Do Kuduro
  in album: Felicidade Se Bem
    type: MusicAlbum
    date published: 2015-11-13
  genre: afro house
  genre: kizomba
  genre: kuduro
  isrc code: QMBZ91513714
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T14:12:15+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2e64b0b54e48629a3666c2de50951118486a552f9b681f056a2baaed5154230f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956826
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956826
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91513714
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T19:27:56Z
  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 0x2e64b0b54e48629a3666c2de50951118486a552f9b681f056a2baaed5154230f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QMBZ91513714.
    date published: 2026-07-05T19:27:56Z
  audio: Jacobino
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.55
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.835
    additional property: Energy
      type: PropertyValue
      value: 0.957
    additional property: Speechiness
      type: PropertyValue
      value: 0.203
    additional property: Acousticness
      type: PropertyValue
      value: 0.04
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.077
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.811
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.656
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Com Fusão
type: MusicAlbum
date published: 2015-11-16

Para Dar Mais Raiva
type: MusicAlbum
date published: 2016-03-18

Nova Onda Brig Brig
type: MusicAlbum
date published: 2016-10-03