Maestro Matéus Júnior
type: MusicGroup
popularity: 11
followers: 262
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x59aa64e42b0f5771e7fb0c746a79e6a2a556e64dbc1b37ce5efab04c9b3392a3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953626
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953626
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2dbc9884-1885-4312-a3bd-3fbc97eb3b20.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2dbc9884-1885-4312-a3bd-3fbc97eb3b20.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2dbc9884-1885-4312-a3bd-3fbc97eb3b20
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:41:45Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x59aa64e42b0f5771e7fb0c746a79e6a2a556e64dbc1b37ce5efab04c9b3392a3","name":"Maestro Matéus Júnior","registered_at":"2026-06-14T09:16:15Z","symbol":"NIM0407169","token_address":"0xd69c55309e46ce44a95a7d17d76deb649d7af0f1","type":"artist","uuid":"2dbc9884-1885-4312-a3bd-3fbc97eb3b20"}
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 0x59aa64e42b0f5771e7fb0c746a79e6a2a556e64dbc1b37ce5efab04c9b3392a3. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2dbc9884-1885-4312-a3bd-3fbc97eb3b20.json and https://artists.proofprofile.net/proofs/artist/2dbc9884-1885-4312-a3bd-3fbc97eb3b20.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T11:41:45Z
  text: {"copyright_id":"0x59aa64e42b0f5771e7fb0c746a79e6a2a556e64dbc1b37ce5efab04c9b3392a3","name":"Maestro Matéus Júnior","registered_at":"2026-06-14T09:16:15Z","symbol":"NIM0407169","token_address":"0xd69c55309e46ce44a95a7d17d76deb649d7af0f1","type":"artist","uuid":"2dbc9884-1885-4312-a3bd-3fbc97eb3b20"}
album: Povo Cantai, Vol 5
  type: MusicAlbum
  date published: 2009
album: Povo Cantai, Vol. 3
  type: MusicAlbum
  date published: 2014
  track: Quão Bondoso Amigo é Cristo HPC N 52
    type: MusicRecording
    duration: PT3M20S
    duration ms: 200986
    explicit: false
    by artist: Maestro Matéus Júnior
    in album: Povo Cantai, Vol. 3
      type: MusicAlbum
      date published: 2014
    isrc code: ES71G2212686
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T11:50:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6c849f73308060a0be44f77f2fe884c4470392c2430f890356ba8791da503d9d
    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/ES71G2212686
    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 0x6c849f73308060a0be44f77f2fe884c4470392c2430f890356ba8791da503d9d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2212686 — a six-check JSON result.
      date published: 2026-07-20T12:15:48Z
    audio: Quão Bondoso Amigo é Cristo HPC N 52
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 156.066
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.617
      additional property: Energy
        type: PropertyValue
        value: 0.553
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.71
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.098
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.486
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.94
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Mezzo Cantai (Hinário Povo Cantai), Vol. 1
  type: MusicAlbum
  date published: 2014
album: Povo Cantai, Vol. 3
  type: MusicAlbum
  date published: 2014
album: Povo Cantai (Kuimba Izuna Ioso), Vol. 8
  type: MusicAlbum
  date published: 2019
album: Povo Cantai (Hinário Divulu Dia Mimbu), Vol. 7
  type: MusicAlbum
  date published: 2019
album: Povo Cantai, Vol. 9
  type: MusicAlbum
  date published: 2019
album: Povo Cantai, Vol. 6
  type: MusicAlbum
  date published: 2019
album: Hinário Povo Cantai
  type: MusicAlbum
  date published: 2021-12-17