Clara Krum
type: MusicGroup
popularity: 5
followers: 256
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xefbd12500f16ec0658a373e8f05fcc3399a186a443586c4adb064ceba6355044
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954004
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954004
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/32ca4965-72b1-4f96-a568-06f56ebc2502.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/32ca4965-72b1-4f96-a568-06f56ebc2502.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/32ca4965-72b1-4f96-a568-06f56ebc2502
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T21:01:04Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xefbd12500f16ec0658a373e8f05fcc3399a186a443586c4adb064ceba6355044","name":"Clara Krum","registered_at":"2026-06-16T07:13:55Z","symbol":"NIM0977007","token_address":"0x4f704f4cc1f3cd59c0bfdab744fbed7c6de00b82","type":"artist","uuid":"32ca4965-72b1-4f96-a568-06f56ebc2502"}
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 0xefbd12500f16ec0658a373e8f05fcc3399a186a443586c4adb064ceba6355044. Chain 2 (Bitcoin): anchored in block 954004 (2026-06-16T21:01:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32ca4965-72b1-4f96-a568-06f56ebc2502.json and https://artists.proofprofile.net/proofs/artist/32ca4965-72b1-4f96-a568-06f56ebc2502.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T21:01:04Z
  text: {"copyright_id":"0xefbd12500f16ec0658a373e8f05fcc3399a186a443586c4adb064ceba6355044","name":"Clara Krum","registered_at":"2026-06-16T07:13:55Z","symbol":"NIM0977007","token_address":"0x4f704f4cc1f3cd59c0bfdab744fbed7c6de00b82","type":"artist","uuid":"32ca4965-72b1-4f96-a568-06f56ebc2502"}
album: The Way To Find You
  type: MusicAlbum
  date published: 2022-01-21
album: Easier
  type: MusicAlbum
  date published: 2022-04-01
album: Coming Back Home
  type: MusicAlbum
  date published: 2022-05-20
album: Always
  type: MusicAlbum
  date published: 2024-08-16
album: Emergency
  type: MusicAlbum
  date published: 2024-10-11
album: Tomorrow Never Comes
  type: MusicAlbum
  date published: 2024-11-29
album: Four Times
  type: MusicAlbum
  date published: 2025-02-21
  track: Four Times
    type: MusicRecording
    duration: PT3M15S
    duration ms: 195093
    explicit: false
    by artist: Clara Krum
    in album: Four Times
      type: MusicAlbum
      date published: 2025-02-21
    isrc code: DEZC62575437
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T20:05:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdf660e65c422922def2db54068cce0b47a805589215ede5d22497eb66b7b406b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956551
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956551
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62575437
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0xdf660e65c422922def2db54068cce0b47a805589215ede5d22497eb66b7b406b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZC62575437 — a six-check JSON result.
      date published: 2026-07-03T21:18:05Z
    audio: Four Times
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 96.099
      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: 0.598
      additional property: Energy
        type: PropertyValue
        value: 0.886
      additional property: Speechiness
        type: PropertyValue
        value: 0.086
      additional property: Acousticness
        type: PropertyValue
        value: 0.003
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.051
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.581
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.157
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: November
  type: MusicAlbum
  date published: 2025-05-16
album: Fancy Sauce To Good Old French Fries
  type: MusicAlbum
  date published: 2025-10-03