Trond Kallevåg
type: MusicGroup
popularity: 8
followers: 803
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x377a1b8122ce4d5164a9726537fdee92da8426e81622024b7f91cf8527998713
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03ddeb79-1292-4ffa-9adf-690b1f9d55d4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03ddeb79-1292-4ffa-9adf-690b1f9d55d4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/03ddeb79-1292-4ffa-9adf-690b1f9d55d4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x377a1b8122ce4d5164a9726537fdee92da8426e81622024b7f91cf8527998713","name":"Trond Kallevåg","registered_at":"2026-06-15T14:56:35Z","symbol":"NIM0743705","token_address":"0xff6dc5bb10cded5c0799b4c4b95f85a38603d4e1","type":"artist","uuid":"03ddeb79-1292-4ffa-9adf-690b1f9d55d4"}
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 0x377a1b8122ce4d5164a9726537fdee92da8426e81622024b7f91cf8527998713. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03ddeb79-1292-4ffa-9adf-690b1f9d55d4.json and https://artists.proofprofile.net/proofs/artist/03ddeb79-1292-4ffa-9adf-690b1f9d55d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x377a1b8122ce4d5164a9726537fdee92da8426e81622024b7f91cf8527998713","name":"Trond Kallevåg","registered_at":"2026-06-15T14:56:35Z","symbol":"NIM0743705","token_address":"0xff6dc5bb10cded5c0799b4c4b95f85a38603d4e1","type":"artist","uuid":"03ddeb79-1292-4ffa-9adf-690b1f9d55d4"}
album: Bedehus & Hawaii
  type: MusicAlbum
  date published: 2019-04-05
album: Bedehus & Hawaii
  type: MusicAlbum
  date published: 2019-04-05
album: Fengselsfugl
  type: MusicAlbum
  date published: 2021-04-09
album: Fengselsfugl
  type: MusicAlbum
  date published: 2021-04-09
album: Fargo
  type: MusicAlbum
  date published: 2023-09-15
album: Fargo
  type: MusicAlbum
  date published: 2023-09-15
album: Høvding
  type: MusicAlbum
  date published: 2023-10-27
album: Amerikabåten
  type: MusicAlbum
  date published: 2023-11-10
album: Amerikabåten
  type: MusicAlbum
  date published: 2023-11-10
album: Twins of Træna
  type: MusicAlbum
  date published: 2025-09-12
  track: Twins of Træna
    type: MusicRecording
    duration: PT3M41S
    duration ms: 221666
    explicit: false
    by artist: Trond Kallevåg
    in album: Twins of Træna
      type: MusicAlbum
      date published: 2025-09-12
    isrc code: NOFGH2572010
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T19:31:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x21cdbea993d105c5e32f5674f04e0aa4285e7ef8978a3dada8906ef5ea3a5e87
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958194
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958194
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOFGH2572010
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T22:33:51Z
    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 0x21cdbea993d105c5e32f5674f04e0aa4285e7ef8978a3dada8906ef5ea3a5e87. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:33:51Z), 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/NOFGH2572010.
      date published: 2026-07-15T22:33:51Z
    audio: Twins of Træna
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.305
      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: 0.362
      additional property: Energy
        type: PropertyValue
        value: 0.467
      additional property: Speechiness
        type: PropertyValue
        value: 0.029
      additional property: Acousticness
        type: PropertyValue
        value: 0.914
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.919
      additional property: Liveness
        type: PropertyValue
        value: 0.476
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.065
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.629
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: The Boat Song
  type: MusicAlbum
  date published: 2025-10-03
album: Minnesota
  type: MusicAlbum
  date published: 2025-10-24