Lena Gercke
type: MusicGroup
description: Lena Johanna Gercke (born 29 February 1988) is a German fashion model and television host. She won the first season of Germany's Next Topmodel and was the host of Austria's Next Topmodel (seasons 1–4)
popularity: 6
followers: 443
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x28fc609f7fdb3fce6556e1c3ab9a8d1fbd7794d6b7b5b3b323beb2e31ab098d3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9c469ff1-c4eb-4cd5-a214-4a6d9eeac802.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9c469ff1-c4eb-4cd5-a214-4a6d9eeac802.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9c469ff1-c4eb-4cd5-a214-4a6d9eeac802
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x28fc609f7fdb3fce6556e1c3ab9a8d1fbd7794d6b7b5b3b323beb2e31ab098d3","name":"Lena Gercke","registered_at":"2026-06-20T04:24:05Z","symbol":"NIM1510132","token_address":"0x045976053ce4198cf8b50a5115d1f59cec373a70","type":"artist","uuid":"9c469ff1-c4eb-4cd5-a214-4a6d9eeac802"}
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 0x28fc609f7fdb3fce6556e1c3ab9a8d1fbd7794d6b7b5b3b323beb2e31ab098d3. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c469ff1-c4eb-4cd5-a214-4a6d9eeac802.json and https://artists.proofprofile.net/proofs/artist/9c469ff1-c4eb-4cd5-a214-4a6d9eeac802.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0x28fc609f7fdb3fce6556e1c3ab9a8d1fbd7794d6b7b5b3b323beb2e31ab098d3","name":"Lena Gercke","registered_at":"2026-06-20T04:24:05Z","symbol":"NIM1510132","token_address":"0x045976053ce4198cf8b50a5115d1f59cec373a70","type":"artist","uuid":"9c469ff1-c4eb-4cd5-a214-4a6d9eeac802"}
album: I Just Wanna
  type: MusicAlbum
  date published: 2022-03-11
  track: I Just Wanna
    type: MusicRecording
    duration: PT1M49S
    duration ms: 109619
    explicit: true
    by artist: Lena Gercke
    in album: I Just Wanna
      type: MusicAlbum
      date published: 2022-03-11
    isrc code: FR2X42252666
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T21:34:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7f96d9377f2a67334d3e6941c1f1329b0a58b1e9f92830e0e61548641a2a6a92
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956420
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956420
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X42252666
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T00:42:11Z
    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 0x7f96d9377f2a67334d3e6941c1f1329b0a58b1e9f92830e0e61548641a2a6a92. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR2X42252666.
      date published: 2026-07-03T00:42:11Z
    audio: I Just Wanna
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.997
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.825
      additional property: Energy
        type: PropertyValue
        value: 0.596
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.102
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.005
      additional property: Liveness
        type: PropertyValue
        value: 0.093
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.108
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.786
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor