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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: 2026-06-21T11:50:32Z
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album: Bach: Apocryphal Bach Cantatas, Vol. 2
  type: MusicAlbum
  date published: 2004-07-20
album: Schutz: German Requiem
  type: MusicAlbum
  date published: 2004-06-22
album: Porpora: Gedeone (Il)
  type: MusicAlbum
  date published: 2006-01-01
album: Stölzel: Christmas Oratorio & Cantatas Nos. 1-5
  type: MusicAlbum
  date published: 2004-10-28
album: Stölzel: Christmas Oratorio & Cantatas 6-10
  type: MusicAlbum
  date published: 2000-11-20
album: Telemann: The Cornett Cantatas
  type: MusicAlbum
  date published: 1998-09-30
album: Stölzel: Der für die Sünde der Welt gemarterte und sterbende Christus
  type: MusicAlbum
  date published: 1998-05-12
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      date published: 1998-05-12
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    additional property: OTSTimestamp
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-31T02:19:15Z
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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
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      date published: 2026-07-31T20:42:35Z
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  track: Der für die Sünde der Welt gemarterte und sterbende Christus, Pt. 1: Drauf sagten sie dem Höchsten Dank
  track: Der für die Sünde der Welt gemarterte und sterbende Christus, Pt. 2: Ach Gott und Herr
album: Claudio Monteverdi: Vespro della Beata Vergine (Marienvesper)
album: Leopold I: Sacred Works
album: Fux: Il Fonte Della Salute Aperto Dalla Grazia Nel Calvario
album: Discover Choral Music
album: Knabenchor Hannover: Michaelisvesper mit Werken von Michael Praetorius
album: Buxtehude: Jungste Gericht (Das)
album: Hofer, A.: Musikalische Vesper
album: Joseph I / Ferdinand Iii / Leopold I: Sacred Works
album: Schutz: German Requiem / Seven Last Words of Christ
album: Bernhard: Geistlicher Harmonien & Other Sacred Concertos
album: A Guided Tour of the Baroque Era, Vol. 1
album: Music for the Zombie Apocalypse
album: Beyond Bach – other music from his time
album: Musique pour l'apocalypse zombie
album: Georg Gebel d. J.: Johannes Passion

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  date published: 1998-05-12
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additional property: OTSVerificationAPI
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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
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  date published: 2026-08-01T01:44:32Z
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by artist: Michaelstein Telemann Chamber Orchestra
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T23:30:38Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T12:24:41Z
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Fux: Il Fonte Della Salute Aperto Dalla Grazia Nel Calvario
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Discover Choral Music
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Knabenchor Hannover: Michaelisvesper mit Werken von Michael Praetorius
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T12:24:41Z
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Joseph I / Ferdinand Iii / Leopold I: Sacred Works
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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  subject of: OpenTimestamps Proof of Existence
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  subject of: OpenTimestamps Proof of Existence
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track: Die sieben Worte Jesu Christi am Kreuz, SWV 478: Conclusio

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date published: 2026-07-31T15:59:18Z

Die sieben Worte Jesu Christi am Kreuz, SWV 478: Und es war um die dritte Stunde
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