Lejon
type: MusicGroup
description: Lejon is a Swedish language surname from the Swedish word for lion. Notable people with the name include: Britta Lejon (1964), Swedish politician Marika Lejon (1984), Norwegian composer and singer
popularity: 4
followers: 276
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcc4b5b1ddaafb482def267e245540151226eb897d2e58d4531d0aee408977d81
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954717
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954717
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f3ac619f-b54d-4602-99fb-a299764fef0c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f3ac619f-b54d-4602-99fb-a299764fef0c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f3ac619f-b54d-4602-99fb-a299764fef0c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T15:47:51Z
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 0xcc4b5b1ddaafb482def267e245540151226eb897d2e58d4531d0aee408977d81. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3ac619f-b54d-4602-99fb-a299764fef0c.json and https://artists.proofprofile.net/proofs/artist/f3ac619f-b54d-4602-99fb-a299764fef0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
album: Direkt från Möllevången
  type: MusicAlbum
  date published: 2018-03-15
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2020-03-18
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  type: MusicAlbum
  date published: 2020-03-19
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  type: MusicAlbum
  date published: 2020-06-08
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  type: MusicAlbum
  date published: 2021-01-12
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  type: MusicAlbum
  date published: 2021-02-13
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2021-04-01
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  type: MusicAlbum
  date published: 2021-06-08
album: För Stunden
  type: MusicAlbum
  date published: 2021-08-19
  track: För Stunden
    type: MusicRecording
    duration: PT3M2S
    duration ms: 182400
    explicit: false
    by artist: Lejon
    in album: För Stunden
      type: MusicAlbum
      date published: 2021-08-19
    isrc code: QZK6G2197753
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T08:25:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x247ac8edabac505bc8ff8cea97db407c71687d5116df42e6e81077f7d2f4e431
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958853
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958853
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6G2197753
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T11:27:14Z
    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 0x247ac8edabac505bc8ff8cea97db407c71687d5116df42e6e81077f7d2f4e431. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:27:14Z), 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/QZK6G2197753.
      date published: 2026-07-20T11:27:14Z
    audio: För Stunden
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.055
      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: 0.751
      additional property: Energy
        type: PropertyValue
        value: 0.802
      additional property: Speechiness
        type: PropertyValue
        value: 0.207
      additional property: Acousticness
        type: PropertyValue
        value: 0.47
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.013
      additional property: Liveness
        type: PropertyValue
        value: 0.145
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.733
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.466
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
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  type: MusicAlbum
  date published: 2021-09-15
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  type: MusicAlbum
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  type: MusicAlbum
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