Os Kalunga Mata
type: MusicGroup
genre: kuduro
popularity: 8
followers: 3707
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8fa2fc941344b723b785b1c774748a8f9886a6114b03016e28413d0079acfaae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954017
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954017
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/36af8d8e-0faf-45bd-b490-2797be35c09a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/36af8d8e-0faf-45bd-b490-2797be35c09a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/36af8d8e-0faf-45bd-b490-2797be35c09a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:38:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8fa2fc941344b723b785b1c774748a8f9886a6114b03016e28413d0079acfaae","name":"Os Kalunga Mata","registered_at":"2026-06-16T08:39:03Z","symbol":"NIM0997337","token_address":"0x3f28362b8b7a5a65d33c74dc75a6cd074afc1c6d","type":"artist","uuid":"36af8d8e-0faf-45bd-b490-2797be35c09a"}
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 0x8fa2fc941344b723b785b1c774748a8f9886a6114b03016e28413d0079acfaae. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36af8d8e-0faf-45bd-b490-2797be35c09a.json and https://artists.proofprofile.net/proofs/artist/36af8d8e-0faf-45bd-b490-2797be35c09a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T23:38:33Z
  text: {"copyright_id":"0x8fa2fc941344b723b785b1c774748a8f9886a6114b03016e28413d0079acfaae","name":"Os Kalunga Mata","registered_at":"2026-06-16T08:39:03Z","symbol":"NIM0997337","token_address":"0x3f28362b8b7a5a65d33c74dc75a6cd074afc1c6d","type":"artist","uuid":"36af8d8e-0faf-45bd-b490-2797be35c09a"}
album: Bilindade
  type: MusicAlbum
  date published: 2009-03-11
album: Abrir de Leão
  type: MusicAlbum
  date published: 2018-02-01
album: Kissaca
  type: MusicAlbum
  date published: 2022-11-15
  track: Kissaca
    type: MusicRecording
    duration: PT6M1S
    duration ms: 361116
    explicit: false
    by artist: Os Kalunga Mata
    in album: Kissaca
      type: MusicAlbum
      date published: 2022-11-15
    genre: kuduro
    isrc code: AOGEA2200685
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T01:50:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7d5f898fcc0d024592c195ec57bd321468d6090f9b07ab7ce4803d922bc73a5f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956861
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956861
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AOGEA2200685
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:57:57Z
    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 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 0x7d5f898fcc0d024592c195ec57bd321468d6090f9b07ab7ce4803d922bc73a5f. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AOGEA2200685 — a six-check JSON result.
      date published: 2026-07-06T01:57:57Z
    audio: Kissaca
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 112.163
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.572
      additional property: Energy
        type: PropertyValue
        value: 0.874
      additional property: Speechiness
        type: PropertyValue
        value: 0.249
      additional property: Acousticness
        type: PropertyValue
        value: 0.255
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.138
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.834
      additional property: Loudness (dB)
        type: PropertyValue
        value: -0.79
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Mbapé
  type: MusicAlbum
  date published: 2023-06-09
  track: Mbapé
    type: MusicRecording
    duration: PT5M1S
    duration ms: 301488
    explicit: false
    by artist: Os Kalunga Mata
    in album: Mbapé
      type: MusicAlbum
      date published: 2023-06-09
    genre: kuduro
    isrc code: AOGEA2300167
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T18:21:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x767147d967d029dda7a88acdf470a57fef84438875d5e705b265e58fa8ddf829
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958770
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958770
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AOGEA2300167
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T19:26:13Z
    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 0x767147d967d029dda7a88acdf470a57fef84438875d5e705b265e58fa8ddf829. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AOGEA2300167 — a six-check JSON result.
      date published: 2026-07-19T19:26:13Z
    audio: Mbapé
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.44
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.614
      additional property: Energy
        type: PropertyValue
        value: 0.783
      additional property: Speechiness
        type: PropertyValue
        value: 0.337
      additional property: Acousticness
        type: PropertyValue
        value: 0.119
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.112

Valence (Positivity)
type: PropertyValue
value: 0.63

Loudness (dB)
type: PropertyValue
value: -3.183

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major