Efrain Guzman
type: MusicGroup
genre: guaracha
popularity: 12
followers: 149
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa8013566672ce85b535481b6c3194206309a2b895c6ceaa43bb0300608065e1b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953786
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953786
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/da45a686-326e-4dba-abe7-21fdcdac15d3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/da45a686-326e-4dba-abe7-21fdcdac15d3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/da45a686-326e-4dba-abe7-21fdcdac15d3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T12:56:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa8013566672ce85b535481b6c3194206309a2b895c6ceaa43bb0300608065e1b","name":"Efrain Guzman","registered_at":"2026-06-15T03:21:34Z","symbol":"NIM0666136","token_address":"0x3715336dd6ef291be648ec2b52f755a932d9eadb","type":"artist","uuid":"da45a686-326e-4dba-abe7-21fdcdac15d3"}
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 0xa8013566672ce85b535481b6c3194206309a2b895c6ceaa43bb0300608065e1b. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da45a686-326e-4dba-abe7-21fdcdac15d3.json and https://artists.proofprofile.net/proofs/artist/da45a686-326e-4dba-abe7-21fdcdac15d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T12:56:12Z
  text: {"copyright_id":"0xa8013566672ce85b535481b6c3194206309a2b895c6ceaa43bb0300608065e1b","name":"Efrain Guzman","registered_at":"2026-06-15T03:21:34Z","symbol":"NIM0666136","token_address":"0x3715336dd6ef291be648ec2b52f755a932d9eadb","type":"artist","uuid":"da45a686-326e-4dba-abe7-21fdcdac15d3"}
album: Mi Melodia
  type: MusicAlbum
  date published: 2021-03-06
album: Guaracha
  type: MusicAlbum
  date published: 2021-03-06
album: Que Rico Timbal
  type: MusicAlbum
  date published: 2021-03-06
  track: Que Rico Timbal
    type: MusicRecording
    duration: PT3M6S
    duration ms: 186552
    explicit: false
    by artist: Efrain Guzman
    in album: Que Rico Timbal
      type: MusicAlbum
      date published: 2021-03-06
    genre: guaracha
    isrc code: CA5KR2149651
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T18:30:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf11df1fa6deac3f63721d488fa37418cf401c9b3612af3e2a9c170e3d6374532
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957745
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957745
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2149651
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T19:20:20Z
    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 0xf11df1fa6deac3f63721d488fa37418cf401c9b3612af3e2a9c170e3d6374532. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/CA5KR2149651.
      date published: 2026-07-12T19:20:20Z
    audio: Que Rico Timbal
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.006
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.777
      additional property: Energy
        type: PropertyValue
        value: 0.95
      additional property: Speechiness
        type: PropertyValue
        value: 0.089
      additional property: Acousticness
        type: PropertyValue
        value: 0.059
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.857
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.637
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.32
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Africa (Original Mix)
  type: MusicAlbum
  date published: 2023-05-31
album: Los Sentidos
  type: MusicAlbum
  date published: 2023-11-17
album: El Árabe Mexicano
  type: MusicAlbum
  date published: 2024-09-30
album: Guaracha en China
  type: MusicAlbum
  date published: 2024-10-20
album: Touch
  type: MusicAlbum
  date published: 2024-10-20
album: Este Es Mi Estilo
  type: MusicAlbum
  date published: 2024-10-20
album: Guaracha en Italia
  type: MusicAlbum
  date published: 2024-10-28
album: La La
  type: MusicAlbum
  date published: 2024-11-15
album: Esa Conga
  type: MusicAlbum
  date published: 2024-12-15
album: Ven
  type: MusicAlbum
  date published: 2025-06-06