Eva Karpe
type: MusicGroup
popularity: 9
followers: 24
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd9315493d679ca2b4deb67132001b5392f3af9d41c13626c93be64419eaf6f63
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954039
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954039
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3ddf0497-d8bb-4e4d-8d37-1dbc5061472e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3ddf0497-d8bb-4e4d-8d37-1dbc5061472e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3ddf0497-d8bb-4e4d-8d37-1dbc5061472e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T03:00:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd9315493d679ca2b4deb67132001b5392f3af9d41c13626c93be64419eaf6f63","name":"Eva Karpe","registered_at":"2026-06-16T11:07:41Z","symbol":"NIM1032799","token_address":"0x62b337213750be1f9b6f384c2a9ae286f097f9e2","type":"artist","uuid":"3ddf0497-d8bb-4e4d-8d37-1dbc5061472e"}
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 0xd9315493d679ca2b4deb67132001b5392f3af9d41c13626c93be64419eaf6f63. Chain 2 (Bitcoin): anchored in block 954039 (2026-06-17T03:00:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ddf0497-d8bb-4e4d-8d37-1dbc5061472e.json and https://artists.proofprofile.net/proofs/artist/3ddf0497-d8bb-4e4d-8d37-1dbc5061472e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T03:00:41Z
  text: {"copyright_id":"0xd9315493d679ca2b4deb67132001b5392f3af9d41c13626c93be64419eaf6f63","name":"Eva Karpe","registered_at":"2026-06-16T11:07:41Z","symbol":"NIM1032799","token_address":"0x62b337213750be1f9b6f384c2a9ae286f097f9e2","type":"artist","uuid":"3ddf0497-d8bb-4e4d-8d37-1dbc5061472e"}
album: Lars-Erik Larsson: Förklädd gud
  type: MusicAlbum
  date published: 2010-10-01
  track: Förklädd gud, Op. 24: Prelude
    type: MusicRecording
    duration: PT5M17S
    duration ms: 317826
    explicit: false
    by artist: Eva Karpe
    in album: Lars-Erik Larsson: Förklädd gud
      type: MusicAlbum
      date published: 2010-10-01
    isrc code: USB8U1028118
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T01:09:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x23813a50845748613c802697d988e15927a9cfad619b9727b4075df5b83c40d4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956742
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956742
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1028118
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T05:07:15Z
    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 0x23813a50845748613c802697d988e15927a9cfad619b9727b4075df5b83c40d4. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USB8U1028118.
      date published: 2026-07-05T05:07:15Z
    audio: Förklädd gud, Op. 24: Prelude
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 71.602
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.067
      additional property: Energy
        type: PropertyValue
        value: 0.077
      additional property: Speechiness
        type: PropertyValue
        value: 0.046
      additional property: Acousticness
        type: PropertyValue
        value: 0.855
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.92
      additional property: Liveness
        type: PropertyValue
        value: 0.078
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.034
      additional property: Loudness (dB)
        type: PropertyValue
        value: -19.719
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Lars-Erik Larsson: Förklädd gud
  type: MusicAlbum
  date published: 2010-10-01