Alfred Eschwe
type: MusicGroup
genre: polka
popularity: 16
followers: 47
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additional property: OTSVerifyInstructions
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  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
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  date published: 2026-06-14T11:41:45Z
  text: {"copyright_id":"0xc817ebac15a7972e9d61280302cf7e0273de225f211274889a212ff7c8adb09c","name":"Alfred Eschwe","registered_at":"2026-06-14T08:09:06Z","symbol":"NIM0391161","token_address":"0x4648aa3572dec7cec5082df59dc3d9f620a6bdf3","type":"artist","uuid":"2411f3ab-5c8b-4617-8160-28f6a01e65fa"}
album: Naxos October 2014 New Release Sampler
  type: MusicAlbum
  date published: 2014-10-01
track: Piano Sonata No. 2, Op. 35: Funeral March (arr. for orchestra)
  type: MusicRecording
  duration: PT8M47S
  duration ms: 527933
  explicit: false
  by artist: Peter Breiner
  by artist: Frédéric Chopin
  by artist: Razumovsky Symphony Orchestra
  by artist: Alfred Eschwe
  in album: Marches (Famous)
    type: MusicAlbum
    date published: 1997-07-22
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f436b370e9c7928eb400d44705b54f6841723f80298c27aba12116cd703ce09. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/HKI199706608 — a six-check JSON result.
    date published: 2026-07-31T02:51:48Z
  audio: Piano Sonata No. 2, Op. 35: Funeral March (arr. for orchestra)
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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