Os Filhos de Campo Grande
type: MusicGroup
popularity: 2
followers: 172
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2116d077e10ac84a315fdd7e3ba7e3adbf5c59b3c4707873642345b27b162f68
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/5a624dea-cbaa-448f-9c6f-b4cee6ef8c9a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5a624dea-cbaa-448f-9c6f-b4cee6ef8c9a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5a624dea-cbaa-448f-9c6f-b4cee6ef8c9a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2116d077e10ac84a315fdd7e3ba7e3adbf5c59b3c4707873642345b27b162f68","name":"Os Filhos de Campo Grande","registered_at":"2026-06-16T21:00:52Z","symbol":"NIM1174333","token_address":"0xda419155f532fdd7e27f1aa3bd42890ef15e50b7","type":"artist","uuid":"5a624dea-cbaa-448f-9c6f-b4cee6ef8c9a"}
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 0x2116d077e10ac84a315fdd7e3ba7e3adbf5c59b3c4707873642345b27b162f68. 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/5a624dea-cbaa-448f-9c6f-b4cee6ef8c9a.json and https://artists.proofprofile.net/proofs/artist/5a624dea-cbaa-448f-9c6f-b4cee6ef8c9a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x2116d077e10ac84a315fdd7e3ba7e3adbf5c59b3c4707873642345b27b162f68","name":"Os Filhos de Campo Grande","registered_at":"2026-06-16T21:00:52Z","symbol":"NIM1174333","token_address":"0xda419155f532fdd7e27f1aa3bd42890ef15e50b7","type":"artist","uuid":"5a624dea-cbaa-448f-9c6f-b4cee6ef8c9a"}
album: Fala com meu copo
  type: MusicAlbum
  date published: 2019-03-23
album: Frente a Frente
  type: MusicAlbum
  date published: 2021-08-15
album: Entrada Franca
  type: MusicAlbum
  date published: 2023-09-28
  track: Entrada Franca
    type: MusicRecording
    duration: PT3M4S
    duration ms: 184185
    explicit: false
    by artist: Os Filhos de Campo Grande
    in album: Entrada Franca
      type: MusicAlbum
      date published: 2023-09-28
    isrc code: BXTB12300269
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T08:30:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2a15dc810b72d6baf809111855278960df92349cafeda19b0277bf6efd543ffa
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956790
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956790
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXTB12300269
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T12:31:54Z
    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 0x2a15dc810b72d6baf809111855278960df92349cafeda19b0277bf6efd543ffa. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BXTB12300269.
      date published: 2026-07-05T12:31:54Z
    audio: Entrada Franca
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.081
      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: 0.711
      additional property: Energy
        type: PropertyValue
        value: 0.853
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.457
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.221
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.712
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.449
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major