Matheus e Alexandre
type: MusicGroup
genre: sertanejo tradicional
popularity: 2
followers: 184
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb68cc74bd910915c73264d3d2920dd359d32173c6d3765143c5b1f675b58409f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9699c970-b027-4089-bc54-6d97ec616552.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9699c970-b027-4089-bc54-6d97ec616552.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9699c970-b027-4089-bc54-6d97ec616552
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb68cc74bd910915c73264d3d2920dd359d32173c6d3765143c5b1f675b58409f","name":"Matheus e Alexandre","registered_at":"2026-06-17T18:15:37Z","symbol":"NIM1478373","token_address":"0x703643c267130c8efccdf5987882d158a4036149","type":"artist","uuid":"9699c970-b027-4089-bc54-6d97ec616552"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68cc74bd910915c73264d3d2920dd359d32173c6d3765143c5b1f675b58409f. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9699c970-b027-4089-bc54-6d97ec616552.json and https://artists.proofprofile.net/proofs/artist/9699c970-b027-4089-bc54-6d97ec616552.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xb68cc74bd910915c73264d3d2920dd359d32173c6d3765143c5b1f675b58409f","name":"Matheus e Alexandre","registered_at":"2026-06-17T18:15:37Z","symbol":"NIM1478373","token_address":"0x703643c267130c8efccdf5987882d158a4036149","type":"artist","uuid":"9699c970-b027-4089-bc54-6d97ec616552"}
album: Tá na Rede
  type: MusicAlbum
  date published: 2015-02-16
  track: Saco de Estopa
    type: MusicRecording
    duration: PT3M3S
    duration ms: 183745
    explicit: false
    by artist: Matheus e Alexandre
    in album: Tá na Rede
      type: MusicAlbum
      date published: 2015-02-16
    genre: sertanejo tradicional
    isrc code: QZ5AB1960035
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T11:51:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x67486c45bb0dfea9edd29e6913b59f5a66fc7e8104749d4263f6ea988f59fc47
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958876
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958876
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB1960035
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T12:15:48Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67486c45bb0dfea9edd29e6913b59f5a66fc7e8104749d4263f6ea988f59fc47. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZ5AB1960035.
      date published: 2026-07-20T12:15:48Z
    audio: Saco de Estopa
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 114.04
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.815
      additional property: Energy
        type: PropertyValue
        value: 0.748
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.568
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.331
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.842
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.64
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major