Bolshoi Symphony Orchestra
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subject of: OpenTimestamps Proof of Existence
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album: Violin Masterpieces: David Oistrakh Plays Beethoven & Sibelius
  type: MusicAlbum
  date published: 2014-08-05
track: Säbeltanz
track: Khachaturian : Gayaneh Suite No.3 : V Sabre Dance
track: Prince Igor, Act II: Polovtsian Dances, General Dance (Allegro)

Säbeltanz
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by artist: Aram Khachaturian
by artist: Alexander Lazarev
by artist: Bolshoi Symphony Orchestra
in album: Klassik 100 Meisterwerke: Klassik die man gehört haben muss
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  date published: 2021-09-25
popularity: 12
genre: classical
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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: 2026-07-02T03:30:09Z
audio: Säbeltanz
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Khachaturian : Gayaneh Suite No.3 : V Sabre Dance
type: MusicRecording
duration: PT2M20S
duration ms: 140560
explicit: false
by artist: Aram Khachaturian
by artist: Alexander Lazarev
by artist: Bolshoi Symphony Orchestra
in album: 40 Most Beautiful Classical Anthems
  type: MusicAlbum
  date published: 2008-12-09
popularity: 8
genre: classical
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  date published: 2026-07-29T19:35:34Z
audio: Khachaturian : Gayaneh Suite No.3 : V Sabre Dance
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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

Prince Igor, Act II: Polovtsian Dances, General Dance (Allegro)
type: MusicRecording
duration: PT7M37S
duration ms: 457400
explicit: false
by artist: Alexander Borodin
by artist: Alexander Lazarev
by artist: Bolshoi Symphony Orchestra
in album: Russian Classics
  type: MusicAlbum
  date published: 2017-02-23
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T18:23:33Z
audio: Prince Igor, Act II: Polovtsian Dances, General Dance (Allegro)
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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