Zé Fernando & Felipe
type: MusicGroup
popularity: 2
followers: 188
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6c3b172f9fc18826d1b90198564aa25484a02f8f821ccdc7d15fecc31b130111
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ec7c32a2-cb3d-4c7d-9d3d-7d59b2e5e791.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ec7c32a2-cb3d-4c7d-9d3d-7d59b2e5e791.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ec7c32a2-cb3d-4c7d-9d3d-7d59b2e5e791
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6c3b172f9fc18826d1b90198564aa25484a02f8f821ccdc7d15fecc31b130111","name":"Zé Fernando & Felipe","registered_at":"2026-06-21T11:18:55Z","symbol":"NIM1909221","token_address":"0x561c127cb3b18e79df9cb3d0f904e89eef43e78d","type":"artist","uuid":"ec7c32a2-cb3d-4c7d-9d3d-7d59b2e5e791"}
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 0x6c3b172f9fc18826d1b90198564aa25484a02f8f821ccdc7d15fecc31b130111. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ec7c32a2-cb3d-4c7d-9d3d-7d59b2e5e791.json and https://artists.proofprofile.net/proofs/artist/ec7c32a2-cb3d-4c7d-9d3d-7d59b2e5e791.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x6c3b172f9fc18826d1b90198564aa25484a02f8f821ccdc7d15fecc31b130111","name":"Zé Fernando & Felipe","registered_at":"2026-06-21T11:18:55Z","symbol":"NIM1909221","token_address":"0x561c127cb3b18e79df9cb3d0f904e89eef43e78d","type":"artist","uuid":"ec7c32a2-cb3d-4c7d-9d3d-7d59b2e5e791"}
album: Modo On
  type: MusicAlbum
  date published: 2022-02-25
  track: Boca Cover
    type: MusicRecording
    duration: PT2M45S
    duration ms: 165308
    explicit: true
    by artist: Zé Fernando & Felipe
    in album: Modo On
      type: MusicAlbum
      date published: 2022-02-25
    isrc code: BX8352200004
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T11:35:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9fda3535b495ed7210e37722be1b5711fea784b4d8181e2fbcd58e7e0404acbb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX8352200004
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0x9fda3535b495ed7210e37722be1b5711fea784b4d8181e2fbcd58e7e0404acbb. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BX8352200004.
      date published: 2026-07-05T18:48:28Z
    audio: Boca Cover
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.785
      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: 0.601
      additional property: Energy
        type: PropertyValue
        value: 0.802
      additional property: Speechiness
        type: PropertyValue
        value: 0.122
      additional property: Acousticness
        type: PropertyValue
        value: 0.542
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.213
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.71
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.417
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major