MSJ
type: MusicGroup
popularity: 5
followers: 480
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6a205042e006877f8609ec4f284552ac5156f608d49e01ca3e65b198e3134a23
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6d8669bd-9ace-4199-8be5-815011378887.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6d8669bd-9ace-4199-8be5-815011378887.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6d8669bd-9ace-4199-8be5-815011378887
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
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 0x6a205042e006877f8609ec4f284552ac5156f608d49e01ca3e65b198e3134a23. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d8669bd-9ace-4199-8be5-815011378887.json and https://artists.proofprofile.net/proofs/artist/6d8669bd-9ace-4199-8be5-815011378887.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Una Oportunidad
  type: MusicAlbum
  date published: 2023-02-02
album: Creceré
  type: MusicAlbum
  date published: 2023-10-05
album: No quiere volver
  type: MusicAlbum
  date published: 2024-01-01
album: Marca Cara
  type: MusicAlbum
  date published: 2024-03-01
  track: Marca Cara
    type: MusicRecording
    duration: PT2M40S
    duration ms: 160730
    explicit: false
    by artist: MSJ
    in album: Marca Cara
      type: MusicAlbum
      date published: 2024-03-01
    isrc code: QZES92428343
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T08:55:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x70eb8695fb052dd49840222297746e647559a851c5c1914ff7574ab1e9e9a9db
    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/QZES92428343
    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 0x70eb8695fb052dd49840222297746e647559a851c5c1914ff7574ab1e9e9a9db. 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/QZES92428343.
      date published: 2026-07-04T11:19:20Z
    audio: Marca Cara
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.943
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.81
      additional property: Energy
        type: PropertyValue
        value: 0.706
      additional property: Speechiness
        type: PropertyValue
        value: 0.129
      additional property: Acousticness
        type: PropertyValue
        value: 0.319
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.208
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.361
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.084
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Me Jodí
  type: MusicAlbum
  date published: 2024-04-29
album: Edición Limitada
  type: MusicAlbum
  date published: 2024-07-10
album: Dubái
  type: MusicAlbum
  date published: 2024-10-10
album: Yo no soy de trapear
  type: MusicAlbum
  date published: 2024-11-21
album: Kiere Verme
  type: MusicAlbum
  date published: 2025-01-02
album: Dejavús
  type: MusicAlbum
  date published: 2025-02-12
album: MUSSOLINI
  type: MusicAlbum
  date published: 2025-03-13
album: Baby Girl
  type: MusicAlbum
  date published: 2025-04-03
album: La Plaza
  type: MusicAlbum
  date published: 2025-06-09
album: La conozco
  type: MusicAlbum
  date published: 2025-10-23