Elmer Schoebel and His Orchestra
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genre: ragtime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-16T16:01:49Z
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track: Copenhagen

Copenhagen
type: MusicRecording
duration: PT2M31S
duration ms: 151413
explicit: false
by artist: Elmer Schoebel and His Orchestra
in album: Roaring 20's Revue Vol. 1
  type: MusicAlbum
  date published: 2009-06-02
isrc code: USCXG0900318
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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
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Copenhagen
  type: AudioObject
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