Håkon Skogstad
type: MusicGroup
popularity: 7
followers: 189
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x18be9e7c5a77579ca9844463211d3e094a6e7e7fd0b6d87c3128f8af616a494f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a5d6c0cf-58cf-431c-b92c-e516b89807ed.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a5d6c0cf-58cf-431c-b92c-e516b89807ed.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a5d6c0cf-58cf-431c-b92c-e516b89807ed
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x18be9e7c5a77579ca9844463211d3e094a6e7e7fd0b6d87c3128f8af616a494f","name":"Håkon Skogstad","registered_at":"2026-06-20T07:33:24Z","symbol":"NIM1554394","token_address":"0x7c071415c9188357754ac7af1895033e0b6198a0","type":"artist","uuid":"a5d6c0cf-58cf-431c-b92c-e516b89807ed"}
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 0x18be9e7c5a77579ca9844463211d3e094a6e7e7fd0b6d87c3128f8af616a494f. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5d6c0cf-58cf-431c-b92c-e516b89807ed.json and https://artists.proofprofile.net/proofs/artist/a5d6c0cf-58cf-431c-b92c-e516b89807ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x18be9e7c5a77579ca9844463211d3e094a6e7e7fd0b6d87c3128f8af616a494f","name":"Håkon Skogstad","registered_at":"2026-06-20T07:33:24Z","symbol":"NIM1554394","token_address":"0x7c071415c9188357754ac7af1895033e0b6198a0","type":"artist","uuid":"a5d6c0cf-58cf-431c-b92c-e516b89807ed"}
album: Two Hands to Tango
  type: MusicAlbum
  date published: 2018-05-14
album: Visions of Tango
  type: MusicAlbum
  date published: 2021-05-28
  track: Concerto for Piano and String Orchestra: I. Allegretto risoluto e appassionato
    type: MusicRecording
    duration: PT8M31S
    duration ms: 511986
    explicit: false
    by artist: Håkon Skogstad
    in album: Visions of Tango
      type: MusicAlbum
      date published: 2021-05-28
    isrc code: NOCTH2180010
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T14:12:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9fbc48d7ee563b87e9880af79b97c137a728f19366e9fb07be8db22163b0b25f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOCTH2180010
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0x9fbc48d7ee563b87e9880af79b97c137a728f19366e9fb07be8db22163b0b25f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/NOCTH2180010.
      date published: 2026-07-05T18:48:28Z
    audio: Concerto for Piano and String Orchestra: I. Allegretto risoluto e appassionato
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 117.547
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.378
      additional property: Energy
        type: PropertyValue
        value: 0.253
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.856
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.88
      additional property: Liveness
        type: PropertyValue
        value: 0.068
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.109
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.943
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 8 Concepts of Tango
  type: MusicAlbum
  date published: 2024-01-26