José Ferrer
type: MusicGroup
description: José Vicente Ferrer de Otero y Cintrón"Jose Ferrer (American actor)" Encyclopædia Britannica. Retrieved on 2012-05-12. (January 8, 1912 – January 26, 1992) was a Puerto Rican actor and director of sta
popularity: 15
followers: 98
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6dbaf4eb005dfc25ff951e98c859297ff6b9b5d0f922f241a31dbc892f83888c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953614
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953614
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/17e51735-e06f-4d81-80d7-34b0039aa90d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/17e51735-e06f-4d81-80d7-34b0039aa90d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/17e51735-e06f-4d81-80d7-34b0039aa90d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T08:40:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6dbaf4eb005dfc25ff951e98c859297ff6b9b5d0f922f241a31dbc892f83888c","name":"José Ferrer","registered_at":"2026-06-14T06:56:30Z","symbol":"NIM0373834","token_address":"0x1f60f99af738ba9afd2b6967abcba8b47bbd326f","type":"artist","uuid":"17e51735-e06f-4d81-80d7-34b0039aa90d"}
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 0x6dbaf4eb005dfc25ff951e98c859297ff6b9b5d0f922f241a31dbc892f83888c. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17e51735-e06f-4d81-80d7-34b0039aa90d.json and https://artists.proofprofile.net/proofs/artist/17e51735-e06f-4d81-80d7-34b0039aa90d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T08:58:35Z
  text: {"copyright_id":"0x6dbaf4eb005dfc25ff951e98c859297ff6b9b5d0f922f241a31dbc892f83888c","name":"José Ferrer","registered_at":"2026-06-14T06:56:30Z","symbol":"NIM0373834","token_address":"0x1f60f99af738ba9afd2b6967abcba8b47bbd326f","type":"artist","uuid":"17e51735-e06f-4d81-80d7-34b0039aa90d"}
album: De Barcelona a Viladecans
  type: MusicAlbum
  date published: 2018-07-12
album: Ferrer: Complete Guitar Duets
  type: MusicAlbum
  date published: 2019-05-10
album: Ferrer: Complete Guitar Duets
  type: MusicAlbum
  date published: 2019-05-10
album: Ferrer: La danse des naiades, Op.35
  type: MusicAlbum
  date published: 2023-02-08
album: Nocturne Op. 11 : No. 1 (Arr. for Guitar by Gerard Cousins)
  type: MusicAlbum
  date published: 2025-01-17
  track: Nocturne Op. 11 : No. 1 - Arr. for Guitar by Gerard Cousins
    type: MusicRecording
    duration: PT2M23S
    duration ms: 143920
    explicit: false
    by artist: José Ferrer
    in album: Nocturne Op. 11 : No. 1 (Arr. for Guitar by Gerard Cousins)
      type: MusicAlbum
      date published: 2025-01-17
    isrc code: QMDA62493640
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T08:26:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0244b8f0f24c945d7aed0429ea127fb0a190192155dccbe21b93b683a34358eb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62493640
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0x0244b8f0f24c945d7aed0429ea127fb0a190192155dccbe21b93b683a34358eb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMDA62493640.
      date published: 2026-07-03T08:56:35Z
    audio: Nocturne Op. 11 : No. 1 - Arr. for Guitar by Gerard Cousins
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.188
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 1
      additional property: Danceability
        type: PropertyValue
        value: 0.448
      additional property: Energy
        type: PropertyValue
        value: 0.034
      additional property: Speechiness
        type: PropertyValue
        value: 0.057
      additional property: Acousticness
        type: PropertyValue
        value: 0.99
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.935
      additional property: Liveness
        type: PropertyValue
        value: 0.096
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.155
      additional property: Loudness (dB)
        type: PropertyValue
        value: -27.641
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Pensées Du Soir, Nocturne for Guitar, Op. 44 (Arr. for Guitar by Gerard Cousins)
  type: MusicAlbum
  date published: 2025-02-07
album: Charme de la Nuit
  type: MusicAlbum
  date published: 2025-02-28