Ervin "El Boricua" Rosario
type: MusicGroup
genre: salsa
popularity: 6
followers: 235
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0655eb0ceb0cf23dab3b357d5fbd387180ba67f2ad07e361e9c3f9739a97a276
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e93035f0-4a5a-4fff-bb4e-d13dd1514579.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e93035f0-4a5a-4fff-bb4e-d13dd1514579.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e93035f0-4a5a-4fff-bb4e-d13dd1514579
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0655eb0ceb0cf23dab3b357d5fbd387180ba67f2ad07e361e9c3f9739a97a276","name":"Ervin \"El Boricua\" Rosario","registered_at":"2026-06-21T09:56:38Z","symbol":"NIM1893354","token_address":"0x1fc9fd5813c9d52a3bf58116eb46ece88216ba4a","type":"artist","uuid":"e93035f0-4a5a-4fff-bb4e-d13dd1514579"}
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 0x0655eb0ceb0cf23dab3b357d5fbd387180ba67f2ad07e361e9c3f9739a97a276. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e93035f0-4a5a-4fff-bb4e-d13dd1514579.json and https://artists.proofprofile.net/proofs/artist/e93035f0-4a5a-4fff-bb4e-d13dd1514579.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x0655eb0ceb0cf23dab3b357d5fbd387180ba67f2ad07e361e9c3f9739a97a276","name":"Ervin \"El Boricua\" Rosario","registered_at":"2026-06-21T09:56:38Z","symbol":"NIM1893354","token_address":"0x1fc9fd5813c9d52a3bf58116eb46ece88216ba4a","type":"artist","uuid":"e93035f0-4a5a-4fff-bb4e-d13dd1514579"}
album: De Corazon
  type: MusicAlbum
  date published: 2011-09-01
album: Aqui Te Canto
  type: MusicAlbum
  date published: 2016-08-18
  track: Borinquen (Mi Isla)
    type: MusicRecording
    duration: PT4M2S
    duration ms: 242786
    explicit: false
    by artist: Ervin "El Boricua" Rosario
    in album: Aqui Te Canto
      type: MusicAlbum
      date published: 2016-08-18
    genre: salsa
    isrc code: QM9AA1645663
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T23:17:55+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x50e40f6b06a4a9296590840fb563b17f76b96e484210d5b3b26dc7a582cc1952
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958086
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958086
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM9AA1645663
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T02:55:47Z
    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 0x50e40f6b06a4a9296590840fb563b17f76b96e484210d5b3b26dc7a582cc1952. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QM9AA1645663.
      date published: 2026-07-15T02:55:47Z
    audio: Borinquen (Mi Isla)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.011
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.889
      additional property: Energy
        type: PropertyValue
        value: 0.855
      additional property: Speechiness
        type: PropertyValue
        value: 0.059
      additional property: Acousticness
        type: PropertyValue
        value: 0.379
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.088
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.909
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.619
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Sabor Boricua
  type: MusicAlbum
  date published: 2024-01-08