Grupo Cruzeirinho
type: MusicGroup
popularity: 4
followers: 318
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd01db764ff30e22c145644f8f097f1e7ddc2a17a267583ee18f5cfe881462c2c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953996
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953996
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30d13dbe-1ab7-431d-87ae-e44b0e81330f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30d13dbe-1ab7-431d-87ae-e44b0e81330f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/30d13dbe-1ab7-431d-87ae-e44b0e81330f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:04:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd01db764ff30e22c145644f8f097f1e7ddc2a17a267583ee18f5cfe881462c2c","name":"Grupo Cruzeirinho","registered_at":"2026-06-16T06:29:46Z","symbol":"NIM0966471","token_address":"0xfbfe23d5a02fa0b209fc60aa1e0f00d9523e78a4","type":"artist","uuid":"30d13dbe-1ab7-431d-87ae-e44b0e81330f"}
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 0xd01db764ff30e22c145644f8f097f1e7ddc2a17a267583ee18f5cfe881462c2c. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30d13dbe-1ab7-431d-87ae-e44b0e81330f.json and https://artists.proofprofile.net/proofs/artist/30d13dbe-1ab7-431d-87ae-e44b0e81330f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xd01db764ff30e22c145644f8f097f1e7ddc2a17a267583ee18f5cfe881462c2c","name":"Grupo Cruzeirinho","registered_at":"2026-06-16T06:29:46Z","symbol":"NIM0966471","token_address":"0xfbfe23d5a02fa0b209fc60aa1e0f00d9523e78a4","type":"artist","uuid":"30d13dbe-1ab7-431d-87ae-e44b0e81330f"}
album: Cruzeirinho
  type: MusicAlbum
  date published: 1988
  track: Hino Cruzeirinho
    type: MusicRecording
    duration: PT3M28S
    duration ms: 208747
    explicit: false
    by artist: Grupo Cruzeirinho
    in album: Cruzeirinho
      type: MusicAlbum
      date published: 1988
    isrc code: FR96X2135836
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T03:47:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x47576a99fffbd28b72c5497106991893a5de083d977c97a0365c9c706c94aa04
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958817
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958817
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X2135836
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T06:50:34Z
    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 0x47576a99fffbd28b72c5497106991893a5de083d977c97a0365c9c706c94aa04. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:50:34Z), 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/FR96X2135836.
      date published: 2026-07-20T06:50:34Z
    audio: Hino Cruzeirinho
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.899
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.76
      additional property: Energy
        type: PropertyValue
        value: 0.46
      additional property: Speechiness
        type: PropertyValue
        value: 0.063
      additional property: Acousticness
        type: PropertyValue
        value: 0.231
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.004
      additional property: Liveness
        type: PropertyValue
        value: 0.064
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.785
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.662
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major