Noelson do Cavaco
type: MusicGroup
genre: pagode
genre: samba
popularity: 9
followers: 512
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9a65325db52f551ed2b0c0e547aaf2844dd5c884dcdc540e256a367091364c55
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954043
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954043
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4032bf20-b440-4090-9e0a-ee9762b4b6cf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4032bf20-b440-4090-9e0a-ee9762b4b6cf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4032bf20-b440-4090-9e0a-ee9762b4b6cf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:15:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9a65325db52f551ed2b0c0e547aaf2844dd5c884dcdc540e256a367091364c55","name":"Noelson do Cavaco","registered_at":"2026-06-16T11:54:35Z","symbol":"NIM1043994","token_address":"0x39799e92e3462147c581317452822aaba44d6387","type":"artist","uuid":"4032bf20-b440-4090-9e0a-ee9762b4b6cf"}
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 0x9a65325db52f551ed2b0c0e547aaf2844dd5c884dcdc540e256a367091364c55. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4032bf20-b440-4090-9e0a-ee9762b4b6cf.json and https://artists.proofprofile.net/proofs/artist/4032bf20-b440-4090-9e0a-ee9762b4b6cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T04:15:20Z
  text: {"copyright_id":"0x9a65325db52f551ed2b0c0e547aaf2844dd5c884dcdc540e256a367091364c55","name":"Noelson do Cavaco","registered_at":"2026-06-16T11:54:35Z","symbol":"NIM1043994","token_address":"0x39799e92e3462147c581317452822aaba44d6387","type":"artist","uuid":"4032bf20-b440-4090-9e0a-ee9762b4b6cf"}
album: Noelson do Cavaco
  type: MusicAlbum
  date published: 2020-12-11
album: Olha Só O Passo
  type: MusicAlbum
  date published: 2023-07-18
album: Esperando São João
  type: MusicAlbum
  date published: 2025-05-02
album: Deu Samba, Pt.1 (Ao Vivo)
  type: MusicAlbum
  date published: 2025-07-04
album: Deu Samba, Pt. 2 (Ao Vivo)
  type: MusicAlbum
  date published: 2025-07-25
album: Deu Samba, Pt.4
  type: MusicAlbum
  date published: 2025-08-22
album: Deu Samba (Pt. 5)
  type: MusicAlbum
  date published: 2025-09-05
  track: Olha Só O Passo
    type: MusicRecording
    duration: PT2M23S
    duration ms: 143279
    explicit: false
    by artist: Noelson do Cavaco
    in album: Deu Samba (Pt. 5)
      type: MusicAlbum
      date published: 2025-09-05
    genre: pagode
    genre: samba
    isrc code: BXNT62502458
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T02:00:36+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbe761dcd6d36a4920f85b6a23fc84a7466ed5bd72bc7f78fc855f4007d6fb7e3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXNT62502458
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0xbe761dcd6d36a4920f85b6a23fc84a7466ed5bd72bc7f78fc855f4007d6fb7e3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BXNT62502458.
      date published: 2026-07-03T08:56:35Z
    audio: Olha Só O Passo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 118.966
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.622
      additional property: Energy
        type: PropertyValue
        value: 0.722
      additional property: Speechiness
        type: PropertyValue
        value: 0.046
      additional property: Acousticness
        type: PropertyValue
        value: 0.698
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.833
      additional property: Liveness
        type: PropertyValue
        value: 0.119
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.963
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.647
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Deu Samba, Pt.6
  type: MusicAlbum
  date published: 2025-09-19