Double Face
type: MusicGroup
description: Double Face (, ) is a 1969 thriller film directed by Riccardo Freda and starring Klaus Kinski, Christiane Krüger and Annabella Incontrera. It is part of the series of Edgar Wallace adaptations made by
popularity: 13
followers: 47
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1f0686bb7f0e03fef99c93109d0c9d5820dc58f67a99762e848198400c50c46f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/57baa26d-9c41-4681-993b-ab1deb119158.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/57baa26d-9c41-4681-993b-ab1deb119158.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/57baa26d-9c41-4681-993b-ab1deb119158
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T17:49:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1f0686bb7f0e03fef99c93109d0c9d5820dc58f67a99762e848198400c50c46f","name":"Double Face","registered_at":"2026-06-14T13:39:19Z","symbol":"NIM0469933","token_address":"0x61083debdcb2a70e6fa45f47c6ae59790211087e","type":"artist","uuid":"57baa26d-9c41-4681-993b-ab1deb119158"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f0686bb7f0e03fef99c93109d0c9d5820dc58f67a99762e848198400c50c46f. Chain 2 (Bitcoin): anchored in block 953667 (2026-06-14T17:49:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/57baa26d-9c41-4681-993b-ab1deb119158.json and https://artists.proofprofile.net/proofs/artist/57baa26d-9c41-4681-993b-ab1deb119158.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T17:49:01Z
  text: {"copyright_id":"0x1f0686bb7f0e03fef99c93109d0c9d5820dc58f67a99762e848198400c50c46f","name":"Double Face","registered_at":"2026-06-14T13:39:19Z","symbol":"NIM0469933","token_address":"0x61083debdcb2a70e6fa45f47c6ae59790211087e","type":"artist","uuid":"57baa26d-9c41-4681-993b-ab1deb119158"}
album: Au seuil de l'infini
  type: MusicAlbum
  date published: 2024-08-20
album: LOLA
  type: MusicAlbum
  date published: 2024-12-11
album: BIZARRE
  type: MusicAlbum
  date published: 2025-02-27
album: CHEVALIER NOIR
  type: MusicAlbum
  date published: 2025-03-20
album: ROOKIE
  type: MusicAlbum
  date published: 2025-04-16
album: MAMBA
  type: MusicAlbum
  date published: 2025-05-21
  track: MAMBA
    type: MusicRecording
    duration: PT2M59S
    duration ms: 179586
    explicit: true
    by artist: Double Face
    in album: MAMBA
      type: MusicAlbum
      date published: 2025-05-21
    isrc code: SE5BU2579249
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T17:17:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9c11a6f32fdd84e6cba3632d6ea453d9cd73a9e909ef244bdab992b03e0303f4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958180
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958180
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5BU2579249
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T17:59:52Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c11a6f32fdd84e6cba3632d6ea453d9cd73a9e909ef244bdab992b03e0303f4. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/SE5BU2579249.
      date published: 2026-07-15T17:59:52Z
    audio: MAMBA
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.821
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.728
      additional property: Energy
        type: PropertyValue
        value: 0.718
      additional property: Speechiness
        type: PropertyValue
        value: 0.31
      additional property: Acousticness
        type: PropertyValue
        value: 0.109
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.124
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.565
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.46
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Rookie
  type: MusicAlbum
  date published: 2025-06-25
album: BIZARRE 2.0
  type: MusicAlbum
  date published: 2025-07-25
album: Matrix
  type: MusicAlbum
  date published: 2025-08-28
album: ADN
  type: MusicAlbum
  date published: 2025-09-26