Mr. Contreras
type: MusicGroup
popularity: 14
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x65e3d700a6148f0ef8ca5d0136f6035b1e7b93e22a602ea083f3e1ee513e7f87
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953803
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953803
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ed568d41-8e32-40ee-aae1-f2e64a4e6148.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ed568d41-8e32-40ee-aae1-f2e64a4e6148.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ed568d41-8e32-40ee-aae1-f2e64a4e6148
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T15:41:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x65e3d700a6148f0ef8ca5d0136f6035b1e7b93e22a602ea083f3e1ee513e7f87","name":"Mr. Contreras","registered_at":"2026-06-15T05:28:14Z","symbol":"NIM0696375","token_address":"0xcabd721efc2cf99bf80f7d57da5d4486c1479675","type":"artist","uuid":"ed568d41-8e32-40ee-aae1-f2e64a4e6148"}
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 0x65e3d700a6148f0ef8ca5d0136f6035b1e7b93e22a602ea083f3e1ee513e7f87. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed568d41-8e32-40ee-aae1-f2e64a4e6148.json and https://artists.proofprofile.net/proofs/artist/ed568d41-8e32-40ee-aae1-f2e64a4e6148.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T15:41:00Z
  text: {"copyright_id":"0x65e3d700a6148f0ef8ca5d0136f6035b1e7b93e22a602ea083f3e1ee513e7f87","name":"Mr. Contreras","registered_at":"2026-06-15T05:28:14Z","symbol":"NIM0696375","token_address":"0xcabd721efc2cf99bf80f7d57da5d4486c1479675","type":"artist","uuid":"ed568d41-8e32-40ee-aae1-f2e64a4e6148"}
album: Credenciales
  type: MusicAlbum
  date published: 2025-04-05
album: Tu no sabe
  type: MusicAlbum
  date published: 2025-04-07
album: Asi meno mal
  type: MusicAlbum
  date published: 2025-04-10
album: Que sienta
  type: MusicAlbum
  date published: 2025-04-16
  track: Que sienta
    type: MusicRecording
    duration: PT2M36S
    duration ms: 156800
    explicit: true
    by artist: Mr. Contreras
    in album: Que sienta
      type: MusicAlbum
      date published: 2025-04-16
    isrc code: SE6XY2568518
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T07:26:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x06a79172d9deaed7da20445994f17132ac01602a55f5369c1d969d7134ec9e87
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XY2568518
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0x06a79172d9deaed7da20445994f17132ac01602a55f5369c1d969d7134ec9e87. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SE6XY2568518.
      date published: 2026-07-04T11:19:20Z
    audio: Que sienta
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.484
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.701
      additional property: Energy
        type: PropertyValue
        value: 0.525
      additional property: Speechiness
        type: PropertyValue
        value: 0.333
      additional property: Acousticness
        type: PropertyValue
        value: 0.719
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.086
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.64
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.784
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major