Claudio Cruz
type: MusicGroup
popularity: 30
followers: 847
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x65d67b57a92af9f2898d532d1c426e61050a80279be5c23e548021107fea1166
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/613c4dd9-3f35-4668-b21a-5bf99358803f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/613c4dd9-3f35-4668-b21a-5bf99358803f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/613c4dd9-3f35-4668-b21a-5bf99358803f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x65d67b57a92af9f2898d532d1c426e61050a80279be5c23e548021107fea1166","name":"Claudio Cruz","registered_at":"2026-06-11T22:45:09Z","symbol":"NIM0126053","token_address":"0x70733ebb804db51d8b93d157956ad8216897e622","type":"artist","uuid":"613c4dd9-3f35-4668-b21a-5bf99358803f"}
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 0x65d67b57a92af9f2898d532d1c426e61050a80279be5c23e548021107fea1166. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/613c4dd9-3f35-4668-b21a-5bf99358803f.json and https://artists.proofprofile.net/proofs/artist/613c4dd9-3f35-4668-b21a-5bf99358803f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x65d67b57a92af9f2898d532d1c426e61050a80279be5c23e548021107fea1166","name":"Claudio Cruz","registered_at":"2026-06-11T22:45:09Z","symbol":"NIM0126053","token_address":"0x70733ebb804db51d8b93d157956ad8216897e622","type":"artist","uuid":"613c4dd9-3f35-4668-b21a-5bf99358803f"}
album: Violin Music In Brazil - Villa-Lobos, Krieger, Oswaldo, Miranda
  type: MusicAlbum
  date published: 2001-01-01
album: Hans Gál • Elgar: Cello Concertos
  type: MusicAlbum
  date published: 2012-06-12
album: Valsas & Choros
  type: MusicAlbum
  date published: 2021-04-02
  track: Levanta a Poeira
album: Song of the Black Swan
  type: MusicAlbum
  date published: 2021-08-13
album: Compositores Brasileiros: Duos para Violino e Viola
  type: MusicAlbum
  date published: 2022-04-01

Levanta a Poeira
type: MusicRecording
duration: PT2M39S
duration ms: 159824
explicit: false
by artist: Claudio Cruz
in album: Valsas & Choros
  type: MusicAlbum
  date published: 2021-04-02
isrc code: BRARP2100004
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:13:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdf3641d8c96a4a5aba5a022de94d27540f2fb138b4f5d0df9b5a2427cab4f1e3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRARP2100004
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957124
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:53:27+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3641d8c96a4a5aba5a022de94d27540f2fb138b4f5d0df9b5a2427cab4f1e3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BRARP2100004.
  date published: 2026-07-08T08:56:20Z
audio: Levanta a Poeira
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.109
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.344
  additional property: Energy
    type: PropertyValue
    value: 0.332
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.262
  additional property: Liveness
    type: PropertyValue
    value: 0.734
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.639
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.536
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major