Linn Katrin Øygard
type: MusicGroup
genre: choral
popularity: 2
followers: 29
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x56038d10f108d69190c942bb34c60dca8413834a6cc68b72bc49b23dc74d3ba7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954689
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954689
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e286e972-2b0f-4a85-b8b6-e9ecd87ca14f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e286e972-2b0f-4a85-b8b6-e9ecd87ca14f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e286e972-2b0f-4a85-b8b6-e9ecd87ca14f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T10:35:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x56038d10f108d69190c942bb34c60dca8413834a6cc68b72bc49b23dc74d3ba7","name":"Linn Katrin Øygard","registered_at":"2026-06-21T07:02:55Z","symbol":"NIM1856226","token_address":"0x1fdc9b25a36400298499bdc52e20b94107493b60","type":"artist","uuid":"e286e972-2b0f-4a85-b8b6-e9ecd87ca14f"}
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 0x56038d10f108d69190c942bb34c60dca8413834a6cc68b72bc49b23dc74d3ba7. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e286e972-2b0f-4a85-b8b6-e9ecd87ca14f.json and https://artists.proofprofile.net/proofs/artist/e286e972-2b0f-4a85-b8b6-e9ecd87ca14f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T10:35:31Z
  text: {"copyright_id":"0x56038d10f108d69190c942bb34c60dca8413834a6cc68b72bc49b23dc74d3ba7","name":"Linn Katrin Øygard","registered_at":"2026-06-21T07:02:55Z","symbol":"NIM1856226","token_address":"0x1fdc9b25a36400298499bdc52e20b94107493b60","type":"artist","uuid":"e286e972-2b0f-4a85-b8b6-e9ecd87ca14f"}
track: Vøtranotte (arr. Idunn Vindspoll Arnesen)
  type: MusicRecording
  duration: PT3M34S
  duration ms: 214880
  explicit: false
  by artist: Trad
  by artist: Geirr Tveitt
  by artist: Kvindelige Studenters Sangforening
  by artist: Maria Folkedal
  by artist: Siri Aarvik
  by artist: Linn Katrin Øygard
  by artist: Marit Tøndel Bodsberg Weyde
  in album: Som Den Gylne Sol Frembryter
    type: MusicAlbum
    date published: 2018-04-16
  isrc code: NOEHX1803020
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T04:26:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4d1135f7756b1b1a9cb7603c080be2e6f1afb4239c04f9ed7a6a4e1509712737
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOEHX1803020
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0x4d1135f7756b1b1a9cb7603c080be2e6f1afb4239c04f9ed7a6a4e1509712737. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NOEHX1803020.
    date published: 2026-07-08T03:20:19Z
  audio: Vøtranotte (arr. Idunn Vindspoll Arnesen)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 98.333
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.095
    additional property: Energy
      type: PropertyValue
      value: 0.008
    additional property: Speechiness
      type: PropertyValue
      value: 0.049
    additional property: Acousticness
      type: PropertyValue
      value: 0.995
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.033
    additional property: Liveness
      type: PropertyValue
      value: 0.083
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.038
    additional property: Loudness (dB)
      type: PropertyValue
      value: -31.529
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor