Os Africanos
type: MusicGroup
genre: axé
genre: pagode
genre: pagode baiano
popularity: 14
followers: 5198
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x003ba0930a1886aa23f7afe4d0cefb34c9c6b07cc2ae4be468cb1c0defd54bd0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953626
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953626
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/20a5ccac-edf2-46f7-a16b-84b8ee1ed0ef.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/20a5ccac-edf2-46f7-a16b-84b8ee1ed0ef.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/20a5ccac-edf2-46f7-a16b-84b8ee1ed0ef
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:41:45Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x003ba0930a1886aa23f7afe4d0cefb34c9c6b07cc2ae4be468cb1c0defd54bd0","name":"Os Africanos","registered_at":"2026-06-14T07:49:08Z","symbol":"NIM0386400","token_address":"0x79c3ef49f2dce2424b855b14acc936ff83bd47ad","type":"artist","uuid":"20a5ccac-edf2-46f7-a16b-84b8ee1ed0ef"}
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 0x003ba0930a1886aa23f7afe4d0cefb34c9c6b07cc2ae4be468cb1c0defd54bd0. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/20a5ccac-edf2-46f7-a16b-84b8ee1ed0ef.json and https://artists.proofprofile.net/proofs/artist/20a5ccac-edf2-46f7-a16b-84b8ee1ed0ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:41:45Z
  text: {"copyright_id":"0x003ba0930a1886aa23f7afe4d0cefb34c9c6b07cc2ae4be468cb1c0defd54bd0","name":"Os Africanos","registered_at":"2026-06-14T07:49:08Z","symbol":"NIM0386400","token_address":"0x79c3ef49f2dce2424b855b14acc936ff83bd47ad","type":"artist","uuid":"20a5ccac-edf2-46f7-a16b-84b8ee1ed0ef"}
album: África Mix
  type: MusicAlbum
  date published: 2016-04-01
album: Tbt dos Africanos
  type: MusicAlbum
  date published: 2019-12-19
  track: Desce um Pouquinho / Aplica
    type: MusicRecording
    duration: PT5M30S
    duration ms: 330264
    explicit: true
    by artist: Os Africanos
    in album: Tbt dos Africanos
      type: MusicAlbum
      date published: 2019-12-19
    genre: axé
    genre: pagode
    genre: pagode baiano
    isrc code: QZHZ51989972
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T00:58:55+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbbde86c6e582114848e62eb8f78d1c64484cef3f0f3e4928791f2480b65e0579
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958476
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958476
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ51989972
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T01:26:56Z
    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 0xbbde86c6e582114848e62eb8f78d1c64484cef3f0f3e4928791f2480b65e0579. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZHZ51989972.
      date published: 2026-07-18T01:26:56Z
    audio: Desce um Pouquinho / Aplica
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 113.866
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.708
      additional property: Energy
        type: PropertyValue
        value: 0.728
      additional property: Speechiness
        type: PropertyValue
        value: 0.058
      additional property: Acousticness
        type: PropertyValue
        value: 0.58
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.13
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.801
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.479
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Todo Dia É Vara!
  type: MusicAlbum
  date published: 2020-02-14