Tarfania
type: MusicGroup
genre: black metal
album: Netherworld
  type: MusicAlbum
  date published: 2023-03-04
  track: The Last Days
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207267
    explicit: false
    by artist: Tarfania
    by artist: Tom Gekas
    in album: Netherworld
      type: MusicAlbum
      date published: 2023-03-04
    genre: black-metal
    isrc code: SE5BU2393120
    additional property: CopyrightID
    additional property: CopyrightStatus
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
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      value: 2026-08-01T03:13:03Z
    additional property: OTSVerifyInstructions
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      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 0xb832400c93d4763645a3d0920690f72e385b883a0554b90d4691020d693aec69. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/SE5BU2393120.
      date published: 2026-08-01T03:13:03Z
    audio: The Last Days
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 158.827
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
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      additional property: Valence (Positivity)
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        value: 0.019
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.628
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Stille Nacht
  type: MusicAlbum
  date published: 2024-08-06
album: Elephant's Foot
  type: MusicAlbum
  date published: 2023-10-07
album: Blasphemy
  type: MusicAlbum
  date published: 2023-01-24
album: Ragnarök
  type: MusicAlbum
  date published: 2022-12-16
album: Erased
  type: MusicAlbum
  date published: 2022-05-05