Varjo
type: MusicGroup
genre: deathrock
genre: finnish rock
genre: post-punk
description: Varjo Technologies Oy, commonly referred to as Varjo, is a Finnish manufacturer of virtual reality and augmented reality headsets. The company was founded in 2016 by former Nokia and Microsoft executi
popularity: 7
followers: 673
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe56ce842583feb4d94bd87ac87186725fd936d1ae1b40759e21b222a8838b5e2
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c3922d99-ddc2-4aa8-b36f-22a3e38c17b2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c3922d99-ddc2-4aa8-b36f-22a3e38c17b2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c3922d99-ddc2-4aa8-b36f-22a3e38c17b2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
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 0xe56ce842583feb4d94bd87ac87186725fd936d1ae1b40759e21b222a8838b5e2. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3922d99-ddc2-4aa8-b36f-22a3e38c17b2.json and https://artists.proofprofile.net/proofs/artist/c3922d99-ddc2-4aa8-b36f-22a3e38c17b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
album: Eilen klo 22.00 luulin löytäneeni sen oikean odotan viimeistä yötä
  type: MusicAlbum
  date published: 1999-01-01
album: Maailmanpyörä
  type: MusicAlbum
  date published: 2000-01-01
album: Korvaamaton
  type: MusicAlbum
  date published: 2000-01-01
album: Korvaamaton
  type: MusicAlbum
  date published: 2000-01-01
album: Kuka korvaa poistetun sydämen?
  type: MusicAlbum
  date published: 2000-01-01
album: Paratiisissa
  type: MusicAlbum
  date published: 2003-01-01
album: Paratiisissa
  type: MusicAlbum
  date published: 2003-01-01
album: Muistijälkiä
  type: MusicAlbum
  date published: 2006-01-01
album: Viimeinen näytös
  type: MusicAlbum
  date published: 2010
  track: Joku sytytti kynttilän
    type: MusicRecording
    duration: PT2M43S
    duration ms: 163293
    explicit: false
    by artist: Varjo
    in album: Viimeinen näytös
      type: MusicAlbum
      date published: 2010
    genre: deathrock
    genre: finnish rock
    genre: post-punk
    isrc code: FITTS1000002
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T04:01:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0a2566c0ec4025242a4bd39f686c98b7de5f166e009758c4c89e68c43b8e3fcb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      value: 956889
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956889
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FITTS1000002
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T06:56:49Z
    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 0x0a2566c0ec4025242a4bd39f686c98b7de5f166e009758c4c89e68c43b8e3fcb. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FITTS1000002.
      date published: 2026-07-06T06:56:49Z
    audio: Joku sytytti kynttilän
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 156.142
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.464
      additional property: Energy
        type: PropertyValue
        value: 0.976
      additional property: Speechiness
        type: PropertyValue
        value: 0.092
      additional property: Acousticness
        type: PropertyValue
        value: 0.037
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.01
      additional property: Liveness
        type: PropertyValue
        value: 0.092
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.554
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.354
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Viimeinen näytös
  type: MusicAlbum
  date published: 2010-01-22