Katharina Becquer
type: MusicGroup
popularity: 23
followers: 107
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x81e6b743280757fd0a441088a51cf75d566ad191ee81135bd34c412a83cff710
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/e10f9df2-d83c-4633-b1b2-a6bdb2b8368e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e10f9df2-d83c-4633-b1b2-a6bdb2b8368e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e10f9df2-d83c-4633-b1b2-a6bdb2b8368e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x81e6b743280757fd0a441088a51cf75d566ad191ee81135bd34c412a83cff710","name":"Katharina Becquer","registered_at":"2026-06-12T11:53:52Z","symbol":"NIM0289918","token_address":"0x518ab2d553ac376f506c7c23deddf404b1910ee7","type":"artist","uuid":"e10f9df2-d83c-4633-b1b2-a6bdb2b8368e"}
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 0x81e6b743280757fd0a441088a51cf75d566ad191ee81135bd34c412a83cff710. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e10f9df2-d83c-4633-b1b2-a6bdb2b8368e.json and https://artists.proofprofile.net/proofs/artist/e10f9df2-d83c-4633-b1b2-a6bdb2b8368e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x81e6b743280757fd0a441088a51cf75d566ad191ee81135bd34c412a83cff710","name":"Katharina Becquer","registered_at":"2026-06-12T11:53:52Z","symbol":"NIM0289918","token_address":"0x518ab2d553ac376f506c7c23deddf404b1910ee7","type":"artist","uuid":"e10f9df2-d83c-4633-b1b2-a6bdb2b8368e"}
album: Ode Au Chagrin
  type: MusicAlbum
  date published: 2021-04-16
album: Le minuit glacé
  type: MusicAlbum
  date published: 2021-07-02
album: Une Autre Fois
  type: MusicAlbum
  date published: 2021-10-01
album: Rêvant de qui nous étions
  type: MusicAlbum
  date published: 2022-04-08
album: Speak Once More
  type: MusicAlbum
  date published: 2022-06-24
  track: Speak Once More
    type: MusicRecording
    duration: PT1M51S
    duration ms: 111229
    explicit: false
    by artist: Katharina Becquer
    in album: Speak Once More
      type: MusicAlbum
      date published: 2022-06-24
    isrc code: SE5IB2264561
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T18:25:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x404c482faeac1637229581e919c36c6c5264510e327041fa3fc60d256e1aeb8d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957899
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957899
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5IB2264561
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T19:36:39Z
    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 0x404c482faeac1637229581e919c36c6c5264510e327041fa3fc60d256e1aeb8d. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/SE5IB2264561.
      date published: 2026-07-13T19:36:39Z
    audio: Speak Once More
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 74.065
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.468
      additional property: Energy
        type: PropertyValue
        value: 0.037
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.969
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.668
      additional property: Liveness
        type: PropertyValue
        value: 0.11
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.396
      additional property: Loudness (dB)
        type: PropertyValue
        value: -18.556
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Full of faith
  type: MusicAlbum
  date published: 2023-03-10