Joao Pereira
type: MusicGroup
popularity: 8
followers: 137
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a006f391377b2dbc52400dd1831eebabc5ee24a67cc1b44609b9b1116f1e737
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/760584a4-d612-451c-8073-696516840058.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/760584a4-d612-451c-8073-696516840058.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/760584a4-d612-451c-8073-696516840058
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4a006f391377b2dbc52400dd1831eebabc5ee24a67cc1b44609b9b1116f1e737","name":"Joao Pereira","registered_at":"2026-06-17T06:45:39Z","symbol":"NIM1313877","token_address":"0x459f738be08388b54b305def8fe8194b95fc778a","type":"artist","uuid":"760584a4-d612-451c-8073-696516840058"}
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 0x4a006f391377b2dbc52400dd1831eebabc5ee24a67cc1b44609b9b1116f1e737. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/760584a4-d612-451c-8073-696516840058.json and https://artists.proofprofile.net/proofs/artist/760584a4-d612-451c-8073-696516840058.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x4a006f391377b2dbc52400dd1831eebabc5ee24a67cc1b44609b9b1116f1e737","name":"Joao Pereira","registered_at":"2026-06-17T06:45:39Z","symbol":"NIM1313877","token_address":"0x459f738be08388b54b305def8fe8194b95fc778a","type":"artist","uuid":"760584a4-d612-451c-8073-696516840058"}
album: Moment In Time
  type: MusicAlbum
  date published: 2012-11-30
album: Kontrol Me
  type: MusicAlbum
  date published: 2012-12-28
album: Vida Bela Vida
  type: MusicAlbum
  date published: 2013-01-12
album: Gossa
  type: MusicAlbum
  date published: 2013-02-14
album: It's A Soul Thing (Instrumental Mix)
  type: MusicAlbum
  date published: 2014-10-24
album: Meltdown
  type: MusicAlbum
  date published: 2016-05-27
track: Ter Um Irmão é o Que Eu Queria
  type: MusicRecording
  duration: PT3M34S
  duration ms: 214506
  explicit: false
  by artist: Joao Pereira
  by artist: Ricardo Lagartinho
  by artist: Pedro Bargado
  by artist: Bruno Huca
  in album: Mufasa: O Rei Leão (The Lion King) [Banda Sonora Original em Português]
    type: MusicAlbum
    date published: 2024-12-13
  isrc code: USWD12435087
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T16:19:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x336e99a80c5b391f08c72f8c09ed2dd57d25faf6e228e906c55f860a3f6085d4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953528
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USWD12435087
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  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 0x336e99a80c5b391f08c72f8c09ed2dd57d25faf6e228e906c55f860a3f6085d4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWD12435087.
    date published: 2026-06-13T15:41:10Z
  audio: Ter Um Irmão é o Que Eu Queria
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.401
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.743
    additional property: Energy
      type: PropertyValue
      value: 0.666
    additional property: Speechiness
      type: PropertyValue
      value: 0.089
    additional property: Acousticness
      type: PropertyValue
      value: 0.57
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.06
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.713
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.404
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major