Hampus I Backen
type: MusicGroup
genre: lullaby
popularity: 45
followers: 149
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc849d8a41b0ace9f420de1dc9d9435e57033b67382649b44a2e33275f65ec33b
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/5ce4f93f-9a2a-453c-a74e-f957caaf445a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5ce4f93f-9a2a-453c-a74e-f957caaf445a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5ce4f93f-9a2a-453c-a74e-f957caaf445a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc849d8a41b0ace9f420de1dc9d9435e57033b67382649b44a2e33275f65ec33b","name":"Hampus I Backen","registered_at":"2026-06-11T21:45:20Z","symbol":"NIM0121025","token_address":"0x79df8426842c09ba4d744fc7e399ea45714f6fa7","type":"artist","uuid":"5ce4f93f-9a2a-453c-a74e-f957caaf445a"}
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 0xc849d8a41b0ace9f420de1dc9d9435e57033b67382649b44a2e33275f65ec33b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ce4f93f-9a2a-453c-a74e-f957caaf445a.json and https://artists.proofprofile.net/proofs/artist/5ce4f93f-9a2a-453c-a74e-f957caaf445a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
  text: {"copyright_id":"0xc849d8a41b0ace9f420de1dc9d9435e57033b67382649b44a2e33275f65ec33b","name":"Hampus I Backen","registered_at":"2026-06-11T21:45:20Z","symbol":"NIM0121025","token_address":"0x79df8426842c09ba4d744fc7e399ea45714f6fa7","type":"artist","uuid":"5ce4f93f-9a2a-453c-a74e-f957caaf445a"}
album: Fattig Bonddräng
  type: MusicAlbum
  date published: 2021-04-27
  track: Fattig Bonddräng
    type: MusicRecording
    duration: PT1M32S
    duration ms: 92005
    explicit: false
    by artist: Hampus I Backen
    in album: Fattig Bonddräng
      type: MusicAlbum
      date published: 2021-04-27
    genre: lullaby
    isrc code: SEXGF2134701
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T04:03:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5d8c77954ef4083d61e1c474b6109e61d7c5f8848dc9637e672d8df41213fce6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEXGF2134701
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0x5d8c77954ef4083d61e1c474b6109e61d7c5f8848dc9637e672d8df41213fce6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SEXGF2134701.
      date published: 2026-07-04T11:19:20Z
    audio: Fattig Bonddräng
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.793
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.666
      additional property: Energy
        type: PropertyValue
        value: 0.186
      additional property: Speechiness
        type: PropertyValue
        value: 0.175
      additional property: Acousticness
        type: PropertyValue
        value: 0.028
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.797
      additional property: Liveness
        type: PropertyValue
        value: 0.094
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.76
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.899
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Tomorrow
  type: MusicAlbum
  date published: 2021-06-02
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  type: MusicAlbum
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