João Poeta
type: MusicGroup
genre: piseiro
popularity: 2
followers: 16
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe84fc3d5ffa74fb15168e11891d96b43720818087b8072764d395a40a9deae42
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ab9955e8-0e22-4c65-b32b-9c6a5963c5b2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ab9955e8-0e22-4c65-b32b-9c6a5963c5b2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ab9955e8-0e22-4c65-b32b-9c6a5963c5b2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe84fc3d5ffa74fb15168e11891d96b43720818087b8072764d395a40a9deae42","name":"João Poeta","registered_at":"2026-06-20T09:29:51Z","symbol":"NIM1580284","token_address":"0x8e23f883e223660f7ae36811700a481b7a4e485f","type":"artist","uuid":"ab9955e8-0e22-4c65-b32b-9c6a5963c5b2"}
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 0xe84fc3d5ffa74fb15168e11891d96b43720818087b8072764d395a40a9deae42. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab9955e8-0e22-4c65-b32b-9c6a5963c5b2.json and https://artists.proofprofile.net/proofs/artist/ab9955e8-0e22-4c65-b32b-9c6a5963c5b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0xe84fc3d5ffa74fb15168e11891d96b43720818087b8072764d395a40a9deae42","name":"João Poeta","registered_at":"2026-06-20T09:29:51Z","symbol":"NIM1580284","token_address":"0x8e23f883e223660f7ae36811700a481b7a4e485f","type":"artist","uuid":"ab9955e8-0e22-4c65-b32b-9c6a5963c5b2"}
album: Dublê de Rico
  type: MusicAlbum
  date published: 2021-10-01
album: Lapada no Espinhaço
  type: MusicAlbum
  date published: 2023-12-07
  track: Lapada no Espinhaço
    type: MusicRecording
    duration: PT1M56S
    duration ms: 116099
    explicit: false
    by artist: João Poeta
    in album: Lapada no Espinhaço
      type: MusicAlbum
      date published: 2023-12-07
    genre: piseiro
    isrc code: QZW9L2349937
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T09:34:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x67070f2bf0b84ce98a02c767fcf5e2fbe883fe3d614db4a3458f87a2ca52b7b2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2349937
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T09:45:25Z
    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 0x67070f2bf0b84ce98a02c767fcf5e2fbe883fe3d614db4a3458f87a2ca52b7b2. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZW9L2349937.
      date published: 2026-07-20T09:45:25Z
    audio: Lapada no Espinhaço
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 170.055
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.761
      additional property: Energy
        type: PropertyValue
        value: 0.827
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.53
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.083
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.929
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.283
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor