Grupo Matrero
type: MusicGroup
genre: corrido
popularity: 3
followers: 19
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x87a666a800b9001f49eab8893894d1b0aefb3448a4ae3101ef0c80c374c38c82
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/50f30fec-b096-4fa6-944c-316ffb9bc75f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/50f30fec-b096-4fa6-944c-316ffb9bc75f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/50f30fec-b096-4fa6-944c-316ffb9bc75f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x87a666a800b9001f49eab8893894d1b0aefb3448a4ae3101ef0c80c374c38c82","name":"Grupo Matrero","registered_at":"2026-06-16T17:44:39Z","symbol":"NIM1127515","token_address":"0xc62665b96c57f039cabab74d4215534b97e28e1b","type":"artist","uuid":"50f30fec-b096-4fa6-944c-316ffb9bc75f"}
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 0x87a666a800b9001f49eab8893894d1b0aefb3448a4ae3101ef0c80c374c38c82. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/50f30fec-b096-4fa6-944c-316ffb9bc75f.json and https://artists.proofprofile.net/proofs/artist/50f30fec-b096-4fa6-944c-316ffb9bc75f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x87a666a800b9001f49eab8893894d1b0aefb3448a4ae3101ef0c80c374c38c82","name":"Grupo Matrero","registered_at":"2026-06-16T17:44:39Z","symbol":"NIM1127515","token_address":"0xc62665b96c57f039cabab74d4215534b97e28e1b","type":"artist","uuid":"50f30fec-b096-4fa6-944c-316ffb9bc75f"}
album: Ya No Te Dicen Ondeado
  type: MusicAlbum
  date published: 2020-02-08
  track: Ya No Te Dicen Ondeado
    type: MusicRecording
    duration: PT3M10S
    duration ms: 190055
    explicit: true
    by artist: Grupo Matrero
    in album: Ya No Te Dicen Ondeado
      type: MusicAlbum
      date published: 2020-02-08
    genre: corrido
    isrc code: MX2832012173
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T00:19:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5e66da215ceb796522818230f2bf6ea2503322c608f66b7ac71c538a0ea52c40
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958802
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958802
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX2832012173
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T01:04:02Z
    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 0x5e66da215ceb796522818230f2bf6ea2503322c608f66b7ac71c538a0ea52c40. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/MX2832012173.
      date published: 2026-07-20T01:04:02Z
    audio: Ya No Te Dicen Ondeado
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.997
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 1
      additional property: Danceability
        type: PropertyValue
        value: 0.635
      additional property: Energy
        type: PropertyValue
        value: 0.478
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.805
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.146
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.746
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.817
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major