Leif Skoog
type: MusicGroup
popularity: 32
followers: 215
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x41ed9052f16eda054e33922c498be8c05b3d98f7433608b9efdb9a49850746ee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6b8f4b8c-1a5a-4ce4-b2cd-fa89ac39ca75.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6b8f4b8c-1a5a-4ce4-b2cd-fa89ac39ca75.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6b8f4b8c-1a5a-4ce4-b2cd-fa89ac39ca75
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x41ed9052f16eda054e33922c498be8c05b3d98f7433608b9efdb9a49850746ee","name":"Leif Skoog","registered_at":"2026-06-11T23:42:31Z","symbol":"NIM0139541","token_address":"0x57a65484a17b22703137b34d08bf0b6ab2433815","type":"artist","uuid":"6b8f4b8c-1a5a-4ce4-b2cd-fa89ac39ca75"}
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 0x41ed9052f16eda054e33922c498be8c05b3d98f7433608b9efdb9a49850746ee. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b8f4b8c-1a5a-4ce4-b2cd-fa89ac39ca75.json and https://artists.proofprofile.net/proofs/artist/6b8f4b8c-1a5a-4ce4-b2cd-fa89ac39ca75.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x41ed9052f16eda054e33922c498be8c05b3d98f7433608b9efdb9a49850746ee","name":"Leif Skoog","registered_at":"2026-06-11T23:42:31Z","symbol":"NIM0139541","token_address":"0x57a65484a17b22703137b34d08bf0b6ab2433815","type":"artist","uuid":"6b8f4b8c-1a5a-4ce4-b2cd-fa89ac39ca75"}
album: Classics
  type: MusicAlbum
  date published: 2019-10-05
album: Ballade
  type: MusicAlbum
  date published: 2020-06-02
album: Hold on
  type: MusicAlbum
  date published: 2021-04-20
album: Make You Feel My Love
  type: MusicAlbum
  date published: 2021-11-12
album: Die For You
  type: MusicAlbum
  date published: 2023-02-03
album: I´ll Be There
  type: MusicAlbum
  date published: 2023-05-19
album: Torn
  type: MusicAlbum
  date published: 2024-01-12
album: She's Like the Wind
  type: MusicAlbum
  date published: 2024-07-07
album: The Christmas Song
  type: MusicAlbum
  date published: 2024-11-22
  track: The Christmas Song
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217200
    explicit: false
    by artist: Leif Skoog
    in album: The Christmas Song
      type: MusicAlbum
      date published: 2024-11-22
    isrc code: SE69Z2441534
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-28T19:42:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbd2eb4ea8d5246214192b6afdda2fbd83f2bbb075798df1a97f60e3a3d25bb63
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956375
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956375
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE69Z2441534
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T16:51:38Z
    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 0xbd2eb4ea8d5246214192b6afdda2fbd83f2bbb075798df1a97f60e3a3d25bb63. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE69Z2441534.
      date published: 2026-07-02T16:51:38Z
    audio: The Christmas Song
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 107.879
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.581
      additional property: Energy
        type: PropertyValue
        value: 0.088
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.989
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.886
      additional property: Liveness
        type: PropertyValue
        value: 0.085
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.089
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.824
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major