Chão e Chinelo
type: MusicGroup
genre: forró
genre: forró tradicional
popularity: 5
followers: 492
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x64af3df4984788835729009221de08568396eb8916f411b7599f2aff0b165c48
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a6977acf-b9d6-4083-8aa5-0f3311dbf21f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a6977acf-b9d6-4083-8aa5-0f3311dbf21f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a6977acf-b9d6-4083-8aa5-0f3311dbf21f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x64af3df4984788835729009221de08568396eb8916f411b7599f2aff0b165c48","name":"Chão e Chinelo","registered_at":"2026-06-20T07:31:30Z","symbol":"NIM1555097","token_address":"0x233a8ab25881d3b34c3857b1fa983004e15f417c","type":"artist","uuid":"a6977acf-b9d6-4083-8aa5-0f3311dbf21f"}
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 0x64af3df4984788835729009221de08568396eb8916f411b7599f2aff0b165c48. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a6977acf-b9d6-4083-8aa5-0f3311dbf21f.json and https://artists.proofprofile.net/proofs/artist/a6977acf-b9d6-4083-8aa5-0f3311dbf21f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x64af3df4984788835729009221de08568396eb8916f411b7599f2aff0b165c48","name":"Chão e Chinelo","registered_at":"2026-06-20T07:31:30Z","symbol":"NIM1555097","token_address":"0x233a8ab25881d3b34c3857b1fa983004e15f417c","type":"artist","uuid":"a6977acf-b9d6-4083-8aa5-0f3311dbf21f"}
album: Loa do Boi Meia Noite
  type: MusicAlbum
  date published: 1999-07-15
  track: Coco de Fulo Rodado
    type: MusicRecording
    duration: PT5M7S
    duration ms: 307960
    explicit: false
    by artist: Chão e Chinelo
    in album: Loa do Boi Meia Noite
      type: MusicAlbum
      date published: 1999-07-15
    genre: forró
    genre: forró tradicional
    isrc code: QZHZ42150285
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T02:45:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x29d431762aedb836a434f69f53894a097b6b7f1abb6cde61defea5b0c4d40987
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958823
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958823
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ42150285
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T05:46:30Z
    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 0x29d431762aedb836a434f69f53894a097b6b7f1abb6cde61defea5b0c4d40987. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:46:30Z), 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/QZHZ42150285.
      date published: 2026-07-20T05:46:30Z
    audio: Coco de Fulo Rodado
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 103.598
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.533
      additional property: Energy
        type: PropertyValue
        value: 0.729
      additional property: Speechiness
        type: PropertyValue
        value: 0.12
      additional property: Acousticness
        type: PropertyValue
        value: 0.093
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.229
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.37
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.591
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor