Wilfried Rösch und seine Böhmischen Freunde
type: MusicGroup
genre: polka
popularity: 4
followers: 39
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xef02e728ec87486171734c7758cffe2c3758837169786e703c65165860b5ab4e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad59160d-1cc1-453a-88a0-fd2f40478217.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad59160d-1cc1-453a-88a0-fd2f40478217.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ad59160d-1cc1-453a-88a0-fd2f40478217
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xef02e728ec87486171734c7758cffe2c3758837169786e703c65165860b5ab4e","name":"Wilfried Rösch und seine Böhmischen Freunde","registered_at":"2026-06-20T10:23:14Z","symbol":"NIM1591215","token_address":"0x9223e748231068c8405ba6bb63fd3835924df2cc","type":"artist","uuid":"ad59160d-1cc1-453a-88a0-fd2f40478217"}
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 0xef02e728ec87486171734c7758cffe2c3758837169786e703c65165860b5ab4e. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad59160d-1cc1-453a-88a0-fd2f40478217.json and https://artists.proofprofile.net/proofs/artist/ad59160d-1cc1-453a-88a0-fd2f40478217.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0xef02e728ec87486171734c7758cffe2c3758837169786e703c65165860b5ab4e","name":"Wilfried Rösch und seine Böhmischen Freunde","registered_at":"2026-06-20T10:23:14Z","symbol":"NIM1591215","token_address":"0x9223e748231068c8405ba6bb63fd3835924df2cc","type":"artist","uuid":"ad59160d-1cc1-453a-88a0-fd2f40478217"}
album: Die Welt der Marschmusik
  type: MusicAlbum
  date published: 2010-04-05
album: 25 Jahre - Tolle Zeiten
  type: MusicAlbum
  date published: 2013-02-21
  track: Polka Nr. 37
    type: MusicRecording
    duration: PT5M39S
    duration ms: 339568
    explicit: false
    by artist: Wilfried Rösch und seine Böhmischen Freunde
    in album: 25 Jahre - Tolle Zeiten
      type: MusicAlbum
      date published: 2013-02-21
    genre: polka
    isrc code: DEGK71300190
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
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      value: 2026-07-05T10:50:15+00:00
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      value: https://explorer.copyrightchains.com/tx/0xa78a79bcd6d14b063ee6832bd8162dff6b3eb3adddb7e0577dc5de9f389f2a00
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
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      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEGK71300190
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0xa78a79bcd6d14b063ee6832bd8162dff6b3eb3adddb7e0577dc5de9f389f2a00. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEGK71300190.
      date published: 2026-07-05T18:48:28Z
    audio: Polka Nr. 37
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.744
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.357
      additional property: Energy
        type: PropertyValue
        value: 0.391
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.979
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.808
      additional property: Liveness
        type: PropertyValue
        value: 0.895
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.569
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.861
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major