Axel Scheffler
type: MusicGroup
description: Axel Scheffler (born ) is a German illustrator and animator based in London. He is best known for his cartoon-like pictures for children's books, in particular The Gruffalo and The Gruffalo's Child, w
popularity: 30
followers: 200
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
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additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/4f42b417-11ce-46af-ad6f-9e6bff9d735a.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
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  value: {"copyright_id":"0x77afae9e86c4c3caf1ed631999d5b05dca46358b297cc347c63a541b4f8c8749","name":"Axel Scheffler","registered_at":"2026-06-11T19:34:31Z","symbol":"NIM0101740","token_address":"0x5f5fcfca0b84daef1f0e59d55fd92adb9fb08716","type":"artist","uuid":"4f42b417-11ce-46af-ad6f-9e6bff9d735a"}
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 0x77afae9e86c4c3caf1ed631999d5b05dca46358b297cc347c63a541b4f8c8749. 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/4f42b417-11ce-46af-ad6f-9e6bff9d735a.json and https://artists.proofprofile.net/proofs/artist/4f42b417-11ce-46af-ad6f-9e6bff9d735a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x77afae9e86c4c3caf1ed631999d5b05dca46358b297cc347c63a541b4f8c8749","name":"Axel Scheffler","registered_at":"2026-06-11T19:34:31Z","symbol":"NIM0101740","token_address":"0x5f5fcfca0b84daef1f0e59d55fd92adb9fb08716","type":"artist","uuid":"4f42b417-11ce-46af-ad6f-9e6bff9d735a"}
album: Die Perlendiebin (ungekürzt)
  type: MusicAlbum
  date published: 1998
  track: Kapitel 1 - Die Perlendiebin
    type: MusicRecording
    duration: PT3M25S
    duration ms: 205350
    explicit: false
    by artist: Axel Scheffler
    in album: Die Perlendiebin (ungekürzt)
      type: MusicAlbum
      date published: 1998
    isrc code: DEXO12492521
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T21:33:18Z
    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 0x82f751d5d7243a4cacad1080596ec10e88a8eb8034d653432d569b9721552427. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:33:18Z), 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/DEXO12492521.
      date published: 2026-07-19T21:33:18Z
    audio: Kapitel 1 - Die Perlendiebin
      type: AudioObject
      additional property: Tempo (BPM)
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        value: 85.618
      additional property: Musical Key
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        value: 0
      additional property: Mode (Major/Minor)
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      additional property: Time Signature
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        value: 4
      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Instrumentalness
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      additional property: Liveness
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      additional property: Valence (Positivity)
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        value: 0.221
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.256
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major