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  track: Piano Concerto No. 4 in G Major, Op. 58: I. Allegro moderato (Cadenza: Kempff)
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  track: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": I. Grave – Allegro di molto e con brio
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  track: Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
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  track: Symphony No. 5 in C Minor, Op. 67: II. Andante con moto
  track: Symphony No. 9 in D Minor, Op. 125 "Choral": I. Allegro ma non troppo, un poco maestoso
  track: Piano Concerto No. 4 in G Major, Op. 58: II. Andante con moto
  track: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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  track: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": I. Allegro
  track: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight Sonata": I. Adagio sostenuto
  track: Symphony No. 7 in A Major, Op. 92: I. Poco sostenuto - Vivace
  track: Symphony No. 9 in D Minor, Op. 125 "Choral": IVa-b. Presto – Allegro assai - Recorded 1962
  track: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto –
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  track: Symphony No. 7 in A Major, Op. 92: II. Allegretto
  track: Symphony No. 9 in D Minor, Op. 125 "Choral": IVc-j. Presto. O Freunde nicht diese Töne – Prestissimo - Recorded 1962
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  track: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight Sonata": III. Presto agitato
  track: Symphony No. 7 in A Major, Op. 92: III. Presto - Assai meno presto
  track: Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": I. Allegro con brio
  track: Symphony No. 7 in A Major, Op. 92: IV. Allegro con brio
  track: Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": II. Introduzione. Adagio molto
  track: Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": III. Rondo. Allegretto moderato – Prestissimo
  track: Piano Sonata No. 23 in F Minor, Op. 57 "Appassionata": I. Allegro assai
  track: Piano Sonata No. 23 in F Minor, Op. 57 "Appassionata": II. Andante con moto
  track: Piano Sonata No. 23 in F Minor, Op. 57 "Appassionata": III. Allegro ma non troppo
album: Borodin: Symphony No. 2 in B Minor — Conducted by Carlos Kleiber (Recordedd in 1972) and Erich Kleiber [Recorded 1947]
album: Strauss: Die Fledermaus
album: Mirella Freni
album: ORFEO 40th Anniversary Edition - Legendary Conductors
album: Verdi: La Traviata
album: Verdi: La Traviata - Highlights
album: Carlos Kleiber - Complete Recordings on Deutsche Grammophon
album: Grosse Opern Vol. 2
album: Weber: Der Freischütz, J. 277
album: Kleiber - Great Recordings
album: Wagner: Tristan und Isolde
album: R. Strauss: Der Rosenkavalier (The Knight of the Rose), Op. 59, TrV 227

Symphony No. 5 in C Minor, Op. 67: II. Andante con moto
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Symphony No. 9 in D Minor, Op. 125 "Choral": I. Allegro ma non troppo, un poco maestoso
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Piano Concerto No. 4 in G Major, Op. 58: II. Andante con moto
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by artist: Wilhelm Kempff
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Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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by artist: Ludwig van Beethoven
by artist: Wilhelm Kempff
in album: Originals Beethoven Box
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Symphony No. 5 in C Minor, Op. 67: III. Allegro
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by artist: Ludwig van Beethoven
by artist: Wiener Philharmoniker
by artist: Carlos Kleiber
in album: Originals Beethoven Box
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additional property: OTSRecordURL
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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Symphony No. 9 in D Minor, Op. 125 "Choral": II. Scherzo. Molto vivace – Presto
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by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edfe64dc4788c583ddc5d437d5058f10b27133fbbce02f35bd080ef2260f349. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6LLMjLVgdEJhi4bku6Xrqv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6LLMjLVgdEJhi4bku6Xrqv.
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Piano Concerto No. 4 in G Major, Op. 58: III. Rondo. Vivace
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duration ms: 629000
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by artist: Ludwig van Beethoven
by artist: Wilhelm Kempff
by artist: Berliner Philharmoniker
by artist: Ferdinand Leitner
in album: Originals Beethoven Box
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  date published: 1995-01-01
isrc code: DEF056101733

Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": III. Rondo. Allegro
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duration: PT4M31S
duration ms: 271000
explicit: false
by artist: Ludwig van Beethoven
by artist: Wilhelm Kempff
in album: Originals Beethoven Box
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  date published: 1995-01-01
isrc code: DEF056500143

Symphony No. 5 in C Minor, Op. 67: IV. Allegro
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duration: PT10M50S
duration ms: 650533
explicit: false
by artist: Ludwig van Beethoven
by artist: Wiener Philharmoniker
by artist: Carlos Kleiber
in album: Originals Beethoven Box
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additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
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Symphony No. 9 in D Minor, Op. 125 "Choral": III. Adagio molto e cantabile
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": I. Allegro
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by artist: Wilhelm Kempff
by artist: Berliner Philharmoniker
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in album: Originals Beethoven Box
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight Sonata": I. Adagio sostenuto
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by artist: Ludwig van Beethoven
by artist: Wilhelm Kempff
in album: Originals Beethoven Box
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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Symphony No. 7 in A Major, Op. 92: I. Poco sostenuto - Vivace
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additional property: OTSVerificationAPI
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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Symphony No. 9 in D Minor, Op. 125 "Choral": IVa-b. Presto – Allegro assai - Recorded 1962
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8392be11448cf54fabeb99cdf19869d99c09642fd1c0643ebc00b6497e8eef89. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7CSov8XnMW7tTUEf7F06hS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7CSov8XnMW7tTUEf7F06hS.
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto –
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by artist: Wilhelm Kempff
by artist: Berliner Philharmoniker
by artist: Ferdinand Leitner
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight Sonata": II. Allegretto
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by artist: Ludwig van Beethoven
by artist: Wilhelm Kempff
in album: Originals Beethoven Box
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Symphony No. 7 in A Major, Op. 92: II. Allegretto
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by artist: Wiener Philharmoniker
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in album: Originals Beethoven Box
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8696a868897006f7eb78aacaa2d04edaad9677b12bda548f67fb46f0197748. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/39xFswYqycHxKHGmSW5hal.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/39xFswYqycHxKHGmSW5hal.
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Symphony No. 9 in D Minor, Op. 125 "Choral": IVc-j. Presto. O Freunde nicht diese Töne – Prestissimo - Recorded 1962
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by artist: Gundula Janowitz
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by artist: Wiener Singverein
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Originals Beethoven Box
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb6c122ecb1d64d4a41136261e99ed7889461d39d078a5694351f853aa8b189. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5FiF5DdTLBp8RwjtdmBOI1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5FiF5DdTLBp8RwjtdmBOI1.
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": III. Rondo. Allegro ma non troppo
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duration ms: 636093
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by artist: Ludwig van Beethoven
by artist: Wilhelm Kempff
by artist: Berliner Philharmoniker
by artist: Ferdinand Leitner
in album: Originals Beethoven Box
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isrc code: DEF056101754

Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight Sonata": III. Presto agitato
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explicit: false
by artist: Ludwig van Beethoven
by artist: Wilhelm Kempff
in album: Originals Beethoven Box
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Symphony No. 7 in A Major, Op. 92: III. Presto - Assai meno presto
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by artist: Wiener Philharmoniker
by artist: Carlos Kleiber
in album: Originals Beethoven Box
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additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776db11e9050fc41fce3314a7f5354c137936c548f001006f4a0bf53de7072c0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0gayr5e8Juiae131eh6QTf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0gayr5e8Juiae131eh6QTf.
  date published: 2026-06-13T15:41:10Z
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Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": I. Allegro con brio
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duration ms: 655000
explicit: false
by artist: Ludwig van Beethoven
by artist: Wilhelm Kempff
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Symphony No. 7 in A Major, Op. 92: IV. Allegro con brio
type: MusicRecording
duration: PT8M36S
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by artist: Wiener Philharmoniker
by artist: Carlos Kleiber
in album: Originals Beethoven Box
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additional property: CopyrightID
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6c58f6f4f9ed2a10fe81b7894e2bd883dc9d08e91fa67a0b88bea0798b2f40. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4GPcWkPqFvh7GiItCWNvv1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4GPcWkPqFvh7GiItCWNvv1.
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Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": II. Introduzione. Adagio molto
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by artist: Ludwig van Beethoven
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Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": III. Rondo. Allegretto moderato – Prestissimo
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by artist: Ludwig van Beethoven
by artist: Wilhelm Kempff
in album: Originals Beethoven Box
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Piano Sonata No. 23 in F Minor, Op. 57 "Appassionata": I. Allegro assai
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by artist: Ludwig van Beethoven
by artist: Wilhelm Kempff
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Piano Sonata No. 23 in F Minor, Op. 57 "Appassionata": II. Andante con moto
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by artist: Ludwig van Beethoven
by artist: Wilhelm Kempff
in album: Originals Beethoven Box
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Piano Sonata No. 23 in F Minor, Op. 57 "Appassionata": III. Allegro ma non troppo
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duration: PT8M46S
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by artist: Ludwig van Beethoven
by artist: Wilhelm Kempff
in album: Originals Beethoven Box
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Borodin: Symphony No. 2 in B Minor — Conducted by Carlos Kleiber (Recordedd in 1972) and Erich Kleiber [Recorded 1947]
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xec2d8374020957e75ef4988516d5a69e407793bcfbe7db4014f84a1b6741fb5c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
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    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/2pA0HYDyH1JeR4rJ97jc1h.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2pA0HYDyH1JeR4rJ97jc1h
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSCanonicalRecord
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2d8374020957e75ef4988516d5a69e407793bcfbe7db4014f84a1b6741fb5c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2pA0HYDyH1JeR4rJ97jc1h.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2pA0HYDyH1JeR4rJ97jc1h.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0xec2d8374020957e75ef4988516d5a69e407793bcfbe7db4014f84a1b6741fb5c","isrc":"DEA557307099","name":"Symphony No. 2 in B Minor: II. Scherzo: Prestissimo. Trio: Allegretto","registered_at":"2026-06-25T23:23:24Z","spotify_id":"2pA0HYDyH1JeR4rJ97jc1h","type":"track"}
track: Symphony No. 2 in B Minor: III. Andante
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    type: MusicAlbum
    date published: 2004-01-01
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
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    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
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    type: PropertyValue
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  additional property: OTSCanonicalRecord
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6908199a10b0ede08fc3e649337d4cbb040dec2bb7b6cfe0920dba55777bf993. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1IXqsAjveWtlyRzFacYxWW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1IXqsAjveWtlyRzFacYxWW.
    date published: 2026-07-02T05:09:12Z
    text: {"copyright_id":"0x6908199a10b0ede08fc3e649337d4cbb040dec2bb7b6cfe0920dba55777bf993","isrc":"DEA557307100","name":"Symphony No. 2 in B Minor: III. Andante","registered_at":"2026-06-25T23:35:10Z","spotify_id":"1IXqsAjveWtlyRzFacYxWW","type":"track"}
track: Symphony No. 2 in B Minor: IV. Finale: allegro
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  by artist: Stuttgart Radio Symphony Orchestra
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    type: MusicAlbum
    date published: 2004-01-01
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  additional property: CopyrightID
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    type: PropertyValue
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    type: PropertyValue
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    type: PropertyValue
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  additional property: OTSRecordURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3IaSPwfOn2UG8AIISX0gKJ
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0x1921de6c1a86c61a0a305357244956ce1ea72ab5c9820a250867aeb352e746dd","isrc":"DEA557307101","name":"Symphony No. 2 in B Minor: IV. Finale: allegro","registered_at":"2026-06-25T23:25:02Z","spotify_id":"3IaSPwfOn2UG8AIISX0gKJ","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1921de6c1a86c61a0a305357244956ce1ea72ab5c9820a250867aeb352e746dd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3IaSPwfOn2UG8AIISX0gKJ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3IaSPwfOn2UG8AIISX0gKJ.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0x1921de6c1a86c61a0a305357244956ce1ea72ab5c9820a250867aeb352e746dd","isrc":"DEA557307101","name":"Symphony No. 2 in B Minor: IV. Finale: allegro","registered_at":"2026-06-25T23:25:02Z","spotify_id":"3IaSPwfOn2UG8AIISX0gKJ","type":"track"}
track: Symphony No. 2 in B Minor: II. Scherzo: Pretissimo. Trio: Allegretto
track: Symphony No. 2 in B Minor: IV. Finale: Allegro

Symphony No. 2 in B Minor: I. Allegro
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duration: PT7M5S
duration ms: 425146
explicit: false
by artist: Alexander Borodin
by artist: NBC Symphony Orchestra
by artist: Erich Kleiber
in album: Borodin: Symphony No. 2 in B Minor — Conducted by Carlos Kleiber (Recordedd in 1972) and Erich Kleiber [Recorded 1947]
  type: MusicAlbum
  date published: 2004-01-01
isrc code: DEA557314879

Symphony No. 2 in B Minor: II. Scherzo: Pretissimo. Trio: Allegretto
type: MusicRecording
duration: PT4M51S
duration ms: 291706
explicit: false
by artist: Alexander Borodin
by artist: NBC Symphony Orchestra
by artist: Erich Kleiber
in album: Borodin: Symphony No. 2 in B Minor — Conducted by Carlos Kleiber (Recordedd in 1972) and Erich Kleiber [Recorded 1947]
  type: MusicAlbum
  date published: 2004-01-01
isrc code: DEA557314880

Symphony No. 2 in B Minor: III. Andante
type: MusicRecording
duration: PT9M9S
duration ms: 549493
explicit: false
by artist: Alexander Borodin
by artist: NBC Symphony Orchestra
by artist: Erich Kleiber
in album: Borodin: Symphony No. 2 in B Minor — Conducted by Carlos Kleiber (Recordedd in 1972) and Erich Kleiber [Recorded 1947]
  type: MusicAlbum
  date published: 2004-01-01

Symphony No. 2 in B Minor: IV. Finale: Allegro
type: MusicRecording
duration: PT6M6S
duration ms: 366893
explicit: false
by artist: Alexander Borodin
by artist: NBC Symphony Orchestra
by artist: Erich Kleiber
in album: Borodin: Symphony No. 2 in B Minor — Conducted by Carlos Kleiber (Recordedd in 1972) and Erich Kleiber [Recorded 1947]
  type: MusicAlbum
  date published: 2004-01-01
isrc code: DEA557314882

Strauss: Die Fledermaus
type: MusicAlbum
date published: 1976-01-01
track: Die Fledermaus, Act II: No. 6, Introduction. Ein Souper heut uns winkt
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  by artist: Johann Strauss II
  by artist: Bavarian State Orchestra
  by artist: Carlos Kleiber
  by artist: Chor der Bayerischen Staatsoper München
  by artist: Wolfgang Baumgart
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    date published: 1976-01-01
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  additional property: CopyrightID
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    type: PropertyValue
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  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xff0e6c9a725b40762a2240310fc6824f2ed18ba4c388b1e0c7028944d39f9de5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956304
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/1sIs8uM4t7Dk2Db3qMZlum.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1sIs8uM4t7Dk2Db3qMZlum
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSCanonicalRecord
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0e6c9a725b40762a2240310fc6824f2ed18ba4c388b1e0c7028944d39f9de5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1sIs8uM4t7Dk2Db3qMZlum.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1sIs8uM4t7Dk2Db3qMZlum.
    date published: 2026-07-02T03:55:08Z
    text: {"copyright_id":"0xff0e6c9a725b40762a2240310fc6824f2ed18ba4c388b1e0c7028944d39f9de5","isrc":"DEF057530606","name":"Die Fledermaus, Act II: No. 6, Introduction. Ein Souper heut uns winkt","registered_at":"2026-06-18T14:03:45Z","spotify_id":"1sIs8uM4t7Dk2Db3qMZlum","type":"track"}
track: Die Fledermaus: Overture
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  by artist: Johann Strauss II
  by artist: Bavarian State Orchestra
  by artist: Carlos Kleiber
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    type: MusicAlbum
    date published: 1976-01-01
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb24865e756c52a61ccb9ecaac92c9023c6093dd2b7db1d0a312c7798ecc5342a
  additional property: OTSHash
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953513
  additional property: OTSRecordURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6FbPeP7zBqDfWUFSotbmUq
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSCanonicalRecord
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24865e756c52a61ccb9ecaac92c9023c6093dd2b7db1d0a312c7798ecc5342a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6FbPeP7zBqDfWUFSotbmUq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6FbPeP7zBqDfWUFSotbmUq.
    date published: 2026-06-13T12:47:07Z
    text: {"copyright_id":"0xb24865e756c52a61ccb9ecaac92c9023c6093dd2b7db1d0a312c7798ecc5342a","isrc":"DEF057530601","name":"Die Fledermaus: Overture","registered_at":"2026-06-04T12:26:05Z","spotify_id":"6FbPeP7zBqDfWUFSotbmUq","type":"track"}
track: Die Fledermaus, Act I: No. 1a, Introduction. Täubchen, das entflattert ist
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    type: MusicAlbum
    date published: 1976-01-01
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSRecordURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Wq1jYxfGy3eWmootgYc3L
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSCanonicalRecord
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25be56ed13747c98df7094f5118949492f8e2d19d46cf6a9d08490f73a9eeb9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5Wq1jYxfGy3eWmootgYc3L.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5Wq1jYxfGy3eWmootgYc3L.
    date published: 2026-06-13T15:41:10Z
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track: Die Fledermaus, Act II: Dialogue. Adele, wer hat denn dich hierher eingeladen?
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSVerificationAPI
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track: Die Fledermaus, Act I: Dialogue. Täubchen, das entflattert ist
track: Die Fledermaus, Act II: No. 7, Couplet. Ich lade gern mir Gäste ein
track: Die Fledermaus, Act I: No. 1b, Duettino. Ach, ich darf nicht hin zu dir!
track: Die Fledermaus, Act II: Dialogue. Durchlaucht, hier ist Ihre Brieftasche wieder
track: Die Fledermaus, Act I: Dialogue. Die arme Tante
track: Die Fledermaus, Act II: No. 8a, Ach, meine Herr'n und Damen
track: Die Fledermaus, Act I: No. 2, Trio. Nein, mit solchen Advokaten
track: Die Fledermaus, Act II: No. 8b, Mein Herr Marquis "Adele's Laughing Song"
track: Die Fledermaus, Act I: Dialogue. Sag mal, also statt fünf musst du acht Tage
track: Die Fledermaus, Act II: Dialogue. Hoheit, ein Chevalier Chagrin ist da
track: Die Fledermaus, Act I: No. 3, Duet. Komm mit mir zum Souper
track: Die Fledermaus, Act II: No. 9, Duet. Dieser Anstand, so manierlich
track: Die Fledermaus, Act I: Dialogue. Seid ihr verrückt geworden?
track: Die Fledermaus, Act II: Dialogue. Ah, da ist ja die schöne Unbekannte
track: Die Fledermaus, Act I: No. 4, Trio. So muss allein ich bleiben
track: Die Fledermaus, Act II: No. 10, Csárdás. Klänge der Heimat
track: Die Fledermaus, Act I: Dialogue. Ach...diese Männer
track: Die Fledermaus, Act II: Dialogue. Bravo! Bravissimo!
track: Die Fledermaus, Act I: No. 5, Finale. Trinke, Liebchen, trinke schnell
track: Die Fledermaus, Act II: No. 11, Finale. Im Feuerstrom der Reben
track: Die Fledermaus, Act II: No. 11a, Finale. Herr, Chevalier, ich grüsse Sie!
track: Die Fledermaus, Act II: Dialogue. Wir werden jetzt sehen das Ballett
track: Die Fledermaus / Act II: Unter Donner und Blitz, Polka, Op. 324
track: Die Fledermaus / Act II: No. 11, Finale. c. Genug damit, genug
track: Die Fledermaus, Act III: No. 12, Entr'acte
track: Die Fledermaus, Act III: Dialogue. Täubchen, das entflattert ist
track: Die Fledermaus, Act III: No. 13, Melodram. So, da wär'n wir ja zu Hause
track: Die Fledermaus, Act III: Dialogue. Ah, der Herr Direktor ist entschlafen
track: Die Fledermaus, Act III: No. 14, Couplet. Spiel' ich die Unschuld vom Lande
track: Die Fledermaus, Act III: Dialogue. Herr Direktor!
track: Die Fledermaus, Act III: No. 15, Trio. Ich stehe voll Zagen
track: Die Fledermaus, Act III: Dialogue. Also, du willst mir Vorwürfe machen?
track: Die Fledermaus, Act III: No. 16, Finale. O Fledermaus, o Fledermaus

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Die Fledermaus, Act I: Dialogue. Täubchen, das entflattert ist
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Die Fledermaus, Act II: No. 7, Couplet. Ich lade gern mir Gäste ein
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subject of: OpenTimestamps Proof of Existence
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Die Fledermaus, Act I: No. 1b, Duettino. Ach, ich darf nicht hin zu dir!
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Die Fledermaus, Act II: Dialogue. Durchlaucht, hier ist Ihre Brieftasche wieder
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Die Fledermaus, Act I: Dialogue. Die arme Tante
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Die Fledermaus, Act II: No. 8a, Ach, meine Herr'n und Damen
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547f21718901eb5d49d29c0446844120a8db3fee4d25b72a339a57573ca43d5f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3z5XI4glTf2LKOEZKKVcTh.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3z5XI4glTf2LKOEZKKVcTh.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x547f21718901eb5d49d29c0446844120a8db3fee4d25b72a339a57573ca43d5f","isrc":"DEF057530628","name":"Die Fledermaus, Act II: No. 8a, Ach, meine Herr'n und Damen","registered_at":"2026-06-19T09:02:22Z","spotify_id":"3z5XI4glTf2LKOEZKKVcTh","type":"track"}

Die Fledermaus, Act I: No. 2, Trio. Nein, mit solchen Advokaten
type: MusicRecording
duration: PT3M47S
duration ms: 227373
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Ferry Gruber
by artist: Hermann Prey
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530622
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T16:01:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x93e9440c181430ee1c2b0901b2adcf55905ca3db66696140718c783a5576f6dd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/76YPjU4QukFQesuXYFqwNf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/76YPjU4QukFQesuXYFqwNf
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e9440c181430ee1c2b0901b2adcf55905ca3db66696140718c783a5576f6dd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/76YPjU4QukFQesuXYFqwNf.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/76YPjU4QukFQesuXYFqwNf.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0x93e9440c181430ee1c2b0901b2adcf55905ca3db66696140718c783a5576f6dd","isrc":"DEF057530622","name":"Die Fledermaus, Act I: No. 2, Trio. Nein, mit solchen Advokaten","registered_at":"2026-06-10T16:01:24Z","spotify_id":"76YPjU4QukFQesuXYFqwNf","type":"track"}

Die Fledermaus, Act II: No. 8b, Mein Herr Marquis "Adele's Laughing Song"
type: MusicRecording
duration: PT3M24S
duration ms: 204160
explicit: false
by artist: Johann Strauss II
by artist: Lucia Popp
by artist: Chor der Bayerischen Staatsoper München
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530629
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T19:09:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x391977503ac24aa9e9bc2dec98b1374223e3110804cf372d3124eab75e03da0e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2ydPbkhHlUQDJStXEGyBZT.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2ydPbkhHlUQDJStXEGyBZT
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
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  value: {"copyright_id":"0x391977503ac24aa9e9bc2dec98b1374223e3110804cf372d3124eab75e03da0e","isrc":"DEF057530629","name":"Die Fledermaus, Act II: No. 8b, Mein Herr Marquis \"Adele's Laughing Song\"","registered_at":"2026-06-08T19:09:15Z","spotify_id":"2ydPbkhHlUQDJStXEGyBZT","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391977503ac24aa9e9bc2dec98b1374223e3110804cf372d3124eab75e03da0e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2ydPbkhHlUQDJStXEGyBZT.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2ydPbkhHlUQDJStXEGyBZT.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x391977503ac24aa9e9bc2dec98b1374223e3110804cf372d3124eab75e03da0e","isrc":"DEF057530629","name":"Die Fledermaus, Act II: No. 8b, Mein Herr Marquis \"Adele's Laughing Song\"","registered_at":"2026-06-08T19:09:15Z","spotify_id":"2ydPbkhHlUQDJStXEGyBZT","type":"track"}

Die Fledermaus, Act I: Dialogue. Sag mal, also statt fünf musst du acht Tage
type: MusicRecording
duration: PT1M50S
duration ms: 110666
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Hermann Prey
by artist: Lucia Popp
by artist: Bernd Weikl
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530623
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T23:57:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa8f3736e13d7272b0656a9a620e3a2813870dfc9f7d99648d333e8a40c1cabf1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2TszCvKXE1AKYcMBdaJBaP.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2TszCvKXE1AKYcMBdaJBaP
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f3736e13d7272b0656a9a620e3a2813870dfc9f7d99648d333e8a40c1cabf1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2TszCvKXE1AKYcMBdaJBaP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2TszCvKXE1AKYcMBdaJBaP.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xa8f3736e13d7272b0656a9a620e3a2813870dfc9f7d99648d333e8a40c1cabf1","isrc":"DEF057530623","name":"Die Fledermaus, Act I: Dialogue. Sag mal, also statt fünf musst du acht Tage","registered_at":"2026-06-19T23:57:36Z","spotify_id":"2TszCvKXE1AKYcMBdaJBaP","type":"track"}

Die Fledermaus, Act II: Dialogue. Hoheit, ein Chevalier Chagrin ist da
type: MusicRecording
duration: PT3M4S
duration ms: 184400
explicit: false
by artist: Johann Strauss II
by artist: Nicolai Lugowoi
by artist: Ivan Rebroff
by artist: Bernd Weikl
by artist: Hermann Prey
by artist: Benno Kusche
by artist: Evi List
by artist: Julia Varady
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530630
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T21:06:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7a50f9fa7ac5215abbd307a6a45c3650d3470b277a8cbabfef00035643307be4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2mcupWToJuoEpG0qY7tqb8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2mcupWToJuoEpG0qY7tqb8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7a50f9fa7ac5215abbd307a6a45c3650d3470b277a8cbabfef00035643307be4","isrc":"DEF057530630","name":"Die Fledermaus, Act II: Dialogue. Hoheit, ein Chevalier Chagrin ist da","registered_at":"2026-06-21T21:06:58Z","spotify_id":"2mcupWToJuoEpG0qY7tqb8","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a50f9fa7ac5215abbd307a6a45c3650d3470b277a8cbabfef00035643307be4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2mcupWToJuoEpG0qY7tqb8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2mcupWToJuoEpG0qY7tqb8.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x7a50f9fa7ac5215abbd307a6a45c3650d3470b277a8cbabfef00035643307be4","isrc":"DEF057530630","name":"Die Fledermaus, Act II: Dialogue. Hoheit, ein Chevalier Chagrin ist da","registered_at":"2026-06-21T21:06:58Z","spotify_id":"2mcupWToJuoEpG0qY7tqb8","type":"track"}

Die Fledermaus, Act I: No. 3, Duet. Komm mit mir zum Souper
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duration: PT3M13S
duration ms: 193800
explicit: false
by artist: Johann Strauss II
by artist: Bernd Weikl
by artist: Hermann Prey
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530603
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T04:10:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1ed649a44cde386dad343c65a6000eb777badf94bea08ae0b326954f924db722
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/43tZTzzQ0f0ZXpy1MD2Upj.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/43tZTzzQ0f0ZXpy1MD2Upj
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1ed649a44cde386dad343c65a6000eb777badf94bea08ae0b326954f924db722","isrc":"DEF057530603","name":"Die Fledermaus, Act I: No. 3, Duet. Komm mit mir zum Souper","registered_at":"2026-06-11T04:10:25Z","spotify_id":"43tZTzzQ0f0ZXpy1MD2Upj","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed649a44cde386dad343c65a6000eb777badf94bea08ae0b326954f924db722. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/43tZTzzQ0f0ZXpy1MD2Upj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/43tZTzzQ0f0ZXpy1MD2Upj.
  date published: 2026-06-13T13:32:09Z
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Die Fledermaus, Act II: No. 9, Duet. Dieser Anstand, so manierlich
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duration: PT4M44S
duration ms: 284106
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Hermann Prey
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530609
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T09:02:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeee8e9264ba636017ab7eb66b707669cdeaf3d393f2a2ef2f003395c31e3e3ff
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2IyGHQWsHa4DbSEi9AHnlm
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee8e9264ba636017ab7eb66b707669cdeaf3d393f2a2ef2f003395c31e3e3ff. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2IyGHQWsHa4DbSEi9AHnlm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2IyGHQWsHa4DbSEi9AHnlm.
  date published: 2026-07-02T03:30:09Z
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Die Fledermaus, Act I: Dialogue. Seid ihr verrückt geworden?
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duration ms: 78760
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Hermann Prey
by artist: Bernd Weikl
by artist: Lucia Popp
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530624
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xecf64fe6f19118fd6e8ed2d52d16883fae7fd25356c4cbec3c1332f771e410f9","isrc":"DEF057530624","name":"Die Fledermaus, Act I: Dialogue. Seid ihr verrückt geworden?","registered_at":"2026-06-20T22:47:25Z","spotify_id":"6eXrGDS8hgWxapHKdZRFIz","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf64fe6f19118fd6e8ed2d52d16883fae7fd25356c4cbec3c1332f771e410f9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6eXrGDS8hgWxapHKdZRFIz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6eXrGDS8hgWxapHKdZRFIz.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xecf64fe6f19118fd6e8ed2d52d16883fae7fd25356c4cbec3c1332f771e410f9","isrc":"DEF057530624","name":"Die Fledermaus, Act I: Dialogue. Seid ihr verrückt geworden?","registered_at":"2026-06-20T22:47:25Z","spotify_id":"6eXrGDS8hgWxapHKdZRFIz","type":"track"}

Die Fledermaus, Act II: Dialogue. Ah, da ist ja die schöne Unbekannte
type: MusicRecording
duration: PT0M36S
duration ms: 36200
explicit: false
by artist: Johann Strauss II
by artist: Benno Kusche
by artist: Lucia Popp
by artist: Ivan Rebroff
by artist: Evi List
by artist: Julia Varady
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530631
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T09:46:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd81f71baaec7f9e73081918a1f90cafbf6afeed5ad6e44ba3912a677679bab9c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2fToakJHcd5quLVoaAuMLZ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2fToakJHcd5quLVoaAuMLZ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd81f71baaec7f9e73081918a1f90cafbf6afeed5ad6e44ba3912a677679bab9c","isrc":"DEF057530631","name":"Die Fledermaus, Act II: Dialogue. Ah, da ist ja die schöne Unbekannte","registered_at":"2026-06-24T09:46:05Z","spotify_id":"2fToakJHcd5quLVoaAuMLZ","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81f71baaec7f9e73081918a1f90cafbf6afeed5ad6e44ba3912a677679bab9c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2fToakJHcd5quLVoaAuMLZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2fToakJHcd5quLVoaAuMLZ.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0xd81f71baaec7f9e73081918a1f90cafbf6afeed5ad6e44ba3912a677679bab9c","isrc":"DEF057530631","name":"Die Fledermaus, Act II: Dialogue. Ah, da ist ja die schöne Unbekannte","registered_at":"2026-06-24T09:46:05Z","spotify_id":"2fToakJHcd5quLVoaAuMLZ","type":"track"}

Die Fledermaus, Act I: No. 4, Trio. So muss allein ich bleiben
type: MusicRecording
duration: PT3M46S
duration ms: 226973
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Lucia Popp
by artist: Hermann Prey
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530604
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T19:14:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa421a198632cbadaab296923c166878a165ece5dc09061733b35cf381461d06f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953515
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2qlWxLS6XWQqVG6BbbnK5n.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2qlWxLS6XWQqVG6BbbnK5n
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa421a198632cbadaab296923c166878a165ece5dc09061733b35cf381461d06f","isrc":"DEF057530604","name":"Die Fledermaus, Act I: No. 4, Trio. So muss allein ich bleiben","registered_at":"2026-06-07T19:14:48Z","spotify_id":"2qlWxLS6XWQqVG6BbbnK5n","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa421a198632cbadaab296923c166878a165ece5dc09061733b35cf381461d06f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2qlWxLS6XWQqVG6BbbnK5n.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2qlWxLS6XWQqVG6BbbnK5n.
  date published: 2026-06-13T12:53:06Z
  text: {"copyright_id":"0xa421a198632cbadaab296923c166878a165ece5dc09061733b35cf381461d06f","isrc":"DEF057530604","name":"Die Fledermaus, Act I: No. 4, Trio. So muss allein ich bleiben","registered_at":"2026-06-07T19:14:48Z","spotify_id":"2qlWxLS6XWQqVG6BbbnK5n","type":"track"}

Die Fledermaus, Act II: No. 10, Csárdás. Klänge der Heimat
type: MusicRecording
duration: PT4M2S
duration ms: 242026
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530610
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T15:59:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xce1b2c1d8ac299217c09c3879cd41062d184fe90f12c44e255d0d16d8571435c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6zwf7IoQHqN8cmmH3qGQcA.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6zwf7IoQHqN8cmmH3qGQcA
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xce1b2c1d8ac299217c09c3879cd41062d184fe90f12c44e255d0d16d8571435c","isrc":"DEF057530610","name":"Die Fledermaus, Act II: No. 10, Csárdás. Klänge der Heimat","registered_at":"2026-06-10T15:59:52Z","spotify_id":"6zwf7IoQHqN8cmmH3qGQcA","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1b2c1d8ac299217c09c3879cd41062d184fe90f12c44e255d0d16d8571435c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6zwf7IoQHqN8cmmH3qGQcA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6zwf7IoQHqN8cmmH3qGQcA.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0xce1b2c1d8ac299217c09c3879cd41062d184fe90f12c44e255d0d16d8571435c","isrc":"DEF057530610","name":"Die Fledermaus, Act II: No. 10, Csárdás. Klänge der Heimat","registered_at":"2026-06-10T15:59:52Z","spotify_id":"6zwf7IoQHqN8cmmH3qGQcA","type":"track"}

Die Fledermaus, Act I: Dialogue. Ach...diese Männer
type: MusicRecording
duration: PT1M0S
duration ms: 60960
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: René Kollo
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530625
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T22:42:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x22845a8460a2351cc6dc33968c6ac3b529e0268ff9d4c532b6293acd362bb012
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5bSQVot9Cz0JjDlfB0JCxv.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5bSQVot9Cz0JjDlfB0JCxv
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x22845a8460a2351cc6dc33968c6ac3b529e0268ff9d4c532b6293acd362bb012","isrc":"DEF057530625","name":"Die Fledermaus, Act I: Dialogue. Ach...diese Männer","registered_at":"2026-06-20T22:42:23Z","spotify_id":"5bSQVot9Cz0JjDlfB0JCxv","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22845a8460a2351cc6dc33968c6ac3b529e0268ff9d4c532b6293acd362bb012. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5bSQVot9Cz0JjDlfB0JCxv.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5bSQVot9Cz0JjDlfB0JCxv.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x22845a8460a2351cc6dc33968c6ac3b529e0268ff9d4c532b6293acd362bb012","isrc":"DEF057530625","name":"Die Fledermaus, Act I: Dialogue. Ach...diese Männer","registered_at":"2026-06-20T22:42:23Z","spotify_id":"5bSQVot9Cz0JjDlfB0JCxv","type":"track"}

Die Fledermaus, Act II: Dialogue. Bravo! Bravissimo!
type: MusicRecording
duration: PT2M12S
duration ms: 132040
explicit: false
by artist: Johann Strauss II
by artist: Evi List
by artist: Julia Varady
by artist: Ivan Rebroff
by artist: Bernd Weikl
by artist: Hermann Prey
by artist: Chor der Bayerischen Staatsoper München
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530632
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T00:41:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa40025a8e5ffd0305653c97826c72b3cc944c504be92d5162cd09d8ef8eb2ef1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4k7VQ2y7KkgLBitPOkKpV8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4k7VQ2y7KkgLBitPOkKpV8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa40025a8e5ffd0305653c97826c72b3cc944c504be92d5162cd09d8ef8eb2ef1","isrc":"DEF057530632","name":"Die Fledermaus, Act II: Dialogue. Bravo! Bravissimo!","registered_at":"2026-06-23T00:41:52Z","spotify_id":"4k7VQ2y7KkgLBitPOkKpV8","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40025a8e5ffd0305653c97826c72b3cc944c504be92d5162cd09d8ef8eb2ef1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4k7VQ2y7KkgLBitPOkKpV8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4k7VQ2y7KkgLBitPOkKpV8.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xa40025a8e5ffd0305653c97826c72b3cc944c504be92d5162cd09d8ef8eb2ef1","isrc":"DEF057530632","name":"Die Fledermaus, Act II: Dialogue. Bravo! Bravissimo!","registered_at":"2026-06-23T00:41:52Z","spotify_id":"4k7VQ2y7KkgLBitPOkKpV8","type":"track"}

Die Fledermaus, Act I: No. 5, Finale. Trinke, Liebchen, trinke schnell
type: MusicRecording
duration: PT10M37S
duration ms: 637666
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: René Kollo
by artist: Benno Kusche
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530605
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T04:09:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x258f2c6cfe641feedc8ecae00d0d7483600a3e1d811d3b1fd51d98a9839321ba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6gd7xJ9q5f7lW6GaxrBNNb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6gd7xJ9q5f7lW6GaxrBNNb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x258f2c6cfe641feedc8ecae00d0d7483600a3e1d811d3b1fd51d98a9839321ba","isrc":"DEF057530605","name":"Die Fledermaus, Act I: No. 5, Finale. Trinke, Liebchen, trinke schnell","registered_at":"2026-06-11T04:09:02Z","spotify_id":"6gd7xJ9q5f7lW6GaxrBNNb","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258f2c6cfe641feedc8ecae00d0d7483600a3e1d811d3b1fd51d98a9839321ba. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6gd7xJ9q5f7lW6GaxrBNNb.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6gd7xJ9q5f7lW6GaxrBNNb.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0x258f2c6cfe641feedc8ecae00d0d7483600a3e1d811d3b1fd51d98a9839321ba","isrc":"DEF057530605","name":"Die Fledermaus, Act I: No. 5, Finale. Trinke, Liebchen, trinke schnell","registered_at":"2026-06-11T04:09:02Z","spotify_id":"6gd7xJ9q5f7lW6GaxrBNNb","type":"track"}

Die Fledermaus, Act II: No. 11, Finale. Im Feuerstrom der Reben
type: MusicRecording
duration: PT2M12S
duration ms: 132800
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Lucia Popp
by artist: Evi List
by artist: Hermann Prey
by artist: Benno Kusche
by artist: Bernd Weikl
by artist: Ivan Rebroff
by artist: Chor der Bayerischen Staatsoper München
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530633
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T15:54:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5d59fdb4f7eb713398ed5bff931a9e6418933581d2bf43d259d1654cef622dd7
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/71Z3AFM1wxe85cORN7tQ54.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/71Z3AFM1wxe85cORN7tQ54
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5d59fdb4f7eb713398ed5bff931a9e6418933581d2bf43d259d1654cef622dd7","isrc":"DEF057530633","name":"Die Fledermaus, Act II: No. 11, Finale. Im Feuerstrom der Reben","registered_at":"2026-06-10T15:54:51Z","spotify_id":"71Z3AFM1wxe85cORN7tQ54","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d59fdb4f7eb713398ed5bff931a9e6418933581d2bf43d259d1654cef622dd7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/71Z3AFM1wxe85cORN7tQ54.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/71Z3AFM1wxe85cORN7tQ54.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0x5d59fdb4f7eb713398ed5bff931a9e6418933581d2bf43d259d1654cef622dd7","isrc":"DEF057530633","name":"Die Fledermaus, Act II: No. 11, Finale. Im Feuerstrom der Reben","registered_at":"2026-06-10T15:54:51Z","spotify_id":"71Z3AFM1wxe85cORN7tQ54","type":"track"}

Die Fledermaus, Act II: No. 11a, Finale. Herr, Chevalier, ich grüsse Sie!
type: MusicRecording
duration: PT5M21S
duration ms: 321226
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Lucia Popp
by artist: Evi List
by artist: Benno Kusche
by artist: Bernd Weikl
by artist: Hermann Prey
by artist: Ivan Rebroff
by artist: Chor der Bayerischen Staatsoper München
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530634
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T09:02:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x37dd9ee96ac94fd16334896b12b6a3738521af3490359dfd0d07a2b3f75fa512
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2Qk5UMSpI2TvqybwZhcJyd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Qk5UMSpI2TvqybwZhcJyd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x37dd9ee96ac94fd16334896b12b6a3738521af3490359dfd0d07a2b3f75fa512","isrc":"DEF057530634","name":"Die Fledermaus, Act II: No. 11a, Finale. Herr, Chevalier, ich grüsse Sie!","registered_at":"2026-06-19T09:02:00Z","spotify_id":"2Qk5UMSpI2TvqybwZhcJyd","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37dd9ee96ac94fd16334896b12b6a3738521af3490359dfd0d07a2b3f75fa512. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2Qk5UMSpI2TvqybwZhcJyd.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Qk5UMSpI2TvqybwZhcJyd.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x37dd9ee96ac94fd16334896b12b6a3738521af3490359dfd0d07a2b3f75fa512","isrc":"DEF057530634","name":"Die Fledermaus, Act II: No. 11a, Finale. Herr, Chevalier, ich grüsse Sie!","registered_at":"2026-06-19T09:02:00Z","spotify_id":"2Qk5UMSpI2TvqybwZhcJyd","type":"track"}

Die Fledermaus, Act II: Dialogue. Wir werden jetzt sehen das Ballett
type: MusicRecording
duration: PT0M9S
duration ms: 9600
explicit: false
by artist: Johann Strauss II
by artist: Ivan Rebroff
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01

Die Fledermaus / Act II: Unter Donner und Blitz, Polka, Op. 324
type: MusicRecording
duration: PT2M55S
duration ms: 175733
explicit: false
by artist: Johann Strauss II
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530612
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T04:06:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8a160d1dd8c780a2f9c024d0e167519ae8dc74e7d7b0241bb9d8d6ba3ea73b1b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1JiOWYgvfPShBmbc6xRtSI.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1JiOWYgvfPShBmbc6xRtSI
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8a160d1dd8c780a2f9c024d0e167519ae8dc74e7d7b0241bb9d8d6ba3ea73b1b","isrc":"DEF057530612","name":"Die Fledermaus / Act II: Unter Donner und Blitz, Polka, Op. 324","registered_at":"2026-06-11T04:06:18Z","spotify_id":"1JiOWYgvfPShBmbc6xRtSI","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a160d1dd8c780a2f9c024d0e167519ae8dc74e7d7b0241bb9d8d6ba3ea73b1b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1JiOWYgvfPShBmbc6xRtSI.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1JiOWYgvfPShBmbc6xRtSI.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0x8a160d1dd8c780a2f9c024d0e167519ae8dc74e7d7b0241bb9d8d6ba3ea73b1b","isrc":"DEF057530612","name":"Die Fledermaus / Act II: Unter Donner und Blitz, Polka, Op. 324","registered_at":"2026-06-11T04:06:18Z","spotify_id":"1JiOWYgvfPShBmbc6xRtSI","type":"track"}

Die Fledermaus / Act II: No. 11, Finale. c. Genug damit, genug
type: MusicRecording
duration: PT4M7S
duration ms: 247133
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Lucia Popp
by artist: Evi List
by artist: Hermann Prey
by artist: Benno Kusche
by artist: Bernd Weikl
by artist: Ivan Rebroff
by artist: Chor der Bayerischen Staatsoper München
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530613
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T04:06:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfd1521ea3357318362e44e6cbd4f5e5552e3b5c93d54c1380ed0eed90aaf1c85
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4wW5CkDF2vI405uRLmIHzB.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4wW5CkDF2vI405uRLmIHzB
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfd1521ea3357318362e44e6cbd4f5e5552e3b5c93d54c1380ed0eed90aaf1c85","isrc":"DEF057530613","name":"Die Fledermaus / Act II: No. 11, Finale. c. Genug damit, genug","registered_at":"2026-06-11T04:06:00Z","spotify_id":"4wW5CkDF2vI405uRLmIHzB","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1521ea3357318362e44e6cbd4f5e5552e3b5c93d54c1380ed0eed90aaf1c85. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4wW5CkDF2vI405uRLmIHzB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4wW5CkDF2vI405uRLmIHzB.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xfd1521ea3357318362e44e6cbd4f5e5552e3b5c93d54c1380ed0eed90aaf1c85","isrc":"DEF057530613","name":"Die Fledermaus / Act II: No. 11, Finale. c. Genug damit, genug","registered_at":"2026-06-11T04:06:00Z","spotify_id":"4wW5CkDF2vI405uRLmIHzB","type":"track"}

Die Fledermaus, Act III: No. 12, Entr'acte
type: MusicRecording
duration: PT0M57S
duration ms: 57373
explicit: false
by artist: Johann Strauss II
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530614
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T09:02:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1936d8c0b34db284e76ce44c09d24437c98f992669af0a452b8cd712b2e0aee1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3HAZm7Ns3ElKTWSC53IyxQ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3HAZm7Ns3ElKTWSC53IyxQ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1936d8c0b34db284e76ce44c09d24437c98f992669af0a452b8cd712b2e0aee1","isrc":"DEF057530614","name":"Die Fledermaus, Act III: No. 12, Entr'acte","registered_at":"2026-06-19T09:02:28Z","spotify_id":"3HAZm7Ns3ElKTWSC53IyxQ","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1936d8c0b34db284e76ce44c09d24437c98f992669af0a452b8cd712b2e0aee1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3HAZm7Ns3ElKTWSC53IyxQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3HAZm7Ns3ElKTWSC53IyxQ.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x1936d8c0b34db284e76ce44c09d24437c98f992669af0a452b8cd712b2e0aee1","isrc":"DEF057530614","name":"Die Fledermaus, Act III: No. 12, Entr'acte","registered_at":"2026-06-19T09:02:28Z","spotify_id":"3HAZm7Ns3ElKTWSC53IyxQ","type":"track"}

Die Fledermaus, Act III: Dialogue. Täubchen, das entflattert ist
type: MusicRecording
duration: PT1M7S
duration ms: 67626
explicit: false
by artist: Johann Strauss II
by artist: René Kollo
by artist: Franz Muxeneder
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530636
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T09:45:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x901568c605224a3ff11707395f274d6c8f97454ade02dc2c33ba9944a94574d2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5OCnCbOT8A3WBKGf3TWr8W.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5OCnCbOT8A3WBKGf3TWr8W
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x901568c605224a3ff11707395f274d6c8f97454ade02dc2c33ba9944a94574d2","isrc":"DEF057530636","name":"Die Fledermaus, Act III: Dialogue. Täubchen, das entflattert ist","registered_at":"2026-06-24T09:45:15Z","spotify_id":"5OCnCbOT8A3WBKGf3TWr8W","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901568c605224a3ff11707395f274d6c8f97454ade02dc2c33ba9944a94574d2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5OCnCbOT8A3WBKGf3TWr8W.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5OCnCbOT8A3WBKGf3TWr8W.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x901568c605224a3ff11707395f274d6c8f97454ade02dc2c33ba9944a94574d2","isrc":"DEF057530636","name":"Die Fledermaus, Act III: Dialogue. Täubchen, das entflattert ist","registered_at":"2026-06-24T09:45:15Z","spotify_id":"5OCnCbOT8A3WBKGf3TWr8W","type":"track"}

Die Fledermaus, Act III: No. 13, Melodram. So, da wär'n wir ja zu Hause
type: MusicRecording
duration: PT3M46S
duration ms: 226573
explicit: false
by artist: Johann Strauss II
by artist: Benno Kusche
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530637
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T00:41:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d6a3e31ee7d41643d8ace0fcc6ba7ebc4adfca239aa6faa9f22a16bf8291a94
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4qln3iz9zUp6BtyxT9Ijhw.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4qln3iz9zUp6BtyxT9Ijhw
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2d6a3e31ee7d41643d8ace0fcc6ba7ebc4adfca239aa6faa9f22a16bf8291a94","isrc":"DEF057530637","name":"Die Fledermaus, Act III: No. 13, Melodram. So, da wär'n wir ja zu Hause","registered_at":"2026-06-23T00:41:23Z","spotify_id":"4qln3iz9zUp6BtyxT9Ijhw","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6a3e31ee7d41643d8ace0fcc6ba7ebc4adfca239aa6faa9f22a16bf8291a94. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4qln3iz9zUp6BtyxT9Ijhw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4qln3iz9zUp6BtyxT9Ijhw.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x2d6a3e31ee7d41643d8ace0fcc6ba7ebc4adfca239aa6faa9f22a16bf8291a94","isrc":"DEF057530637","name":"Die Fledermaus, Act III: No. 13, Melodram. So, da wär'n wir ja zu Hause","registered_at":"2026-06-23T00:41:23Z","spotify_id":"4qln3iz9zUp6BtyxT9Ijhw","type":"track"}

Die Fledermaus, Act III: Dialogue. Ah, der Herr Direktor ist entschlafen
type: MusicRecording
duration: PT1M33S
duration ms: 93493
explicit: false
by artist: Johann Strauss II
by artist: Franz Muxeneder
by artist: Benno Kusche
by artist: Lucia Popp
by artist: Evi List
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530638
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13affec2b8adb2750e64f95e953d57bec6c59885548a2064cc71ed3219a4cc54. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/48qrkq3YgjiotE2BDXlif3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/48qrkq3YgjiotE2BDXlif3.
  date published: 2026-07-02T05:09:12Z
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Die Fledermaus, Act III: No. 14, Couplet. Spiel' ich die Unschuld vom Lande
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duration: PT4M12S
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by artist: Johann Strauss II
by artist: Lucia Popp
by artist: Evi List
by artist: Benno Kusche
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/track/4Dke5DqIkWr3hvAk9Hm1UB.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b50aa988f20798d57d810403e0244f463ba1356c04ff0b1f57becde72f8857. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4Dke5DqIkWr3hvAk9Hm1UB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4Dke5DqIkWr3hvAk9Hm1UB.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xa3b50aa988f20798d57d810403e0244f463ba1356c04ff0b1f57becde72f8857","isrc":"DEF057530615","name":"Die Fledermaus, Act III: No. 14, Couplet. Spiel' ich die Unschuld vom Lande","registered_at":"2026-06-11T04:04:10Z","spotify_id":"4Dke5DqIkWr3hvAk9Hm1UB","type":"track"}

Die Fledermaus, Act III: Dialogue. Herr Direktor!
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duration: PT3M26S
duration ms: 206360
explicit: false
by artist: Johann Strauss II
by artist: Franz Muxeneder
by artist: Lucia Popp
by artist: Benno Kusche
by artist: Hermann Prey
by artist: Ferry Gruber
by artist: Julia Varady
in album: Strauss: Die Fledermaus
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isrc code: DEF057530639
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f64aac1a717505b54f4cacac7075016c310fc62985019eb7fce28c12b491787. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5CSpZ4y9fayxSD8icq6H3s.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5CSpZ4y9fayxSD8icq6H3s.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x2f64aac1a717505b54f4cacac7075016c310fc62985019eb7fce28c12b491787","isrc":"DEF057530639","name":"Die Fledermaus, Act III: Dialogue. Herr Direktor!","registered_at":"2026-06-24T09:58:52Z","spotify_id":"5CSpZ4y9fayxSD8icq6H3s","type":"track"}

Die Fledermaus, Act III: No. 15, Trio. Ich stehe voll Zagen
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explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: René Kollo
by artist: Hermann Prey
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740bceadedae4ebcd5f53d670e9c2febcc99d650257aef924d64b3fdcf8804e2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6Z8gGO2rpdzaAKDUiwIvzb.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6Z8gGO2rpdzaAKDUiwIvzb.
  date published: 2026-07-02T03:30:09Z
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Die Fledermaus, Act III: Dialogue. Also, du willst mir Vorwürfe machen?
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duration ms: 40506
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Hermann Prey
by artist: Benno Kusche
by artist: René Kollo
by artist: Franz Muxeneder
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530641
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSRecordURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0yWjtmElX5xsHQ7i1ALOCX
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51572055605f8fe803446944451f1efc637c3fa93b28f255d38f7119d9839ec. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0yWjtmElX5xsHQ7i1ALOCX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0yWjtmElX5xsHQ7i1ALOCX.
  date published: 2026-07-02T05:09:12Z
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Die Fledermaus, Act III: No. 16, Finale. O Fledermaus, o Fledermaus
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duration: PT2M39S
duration ms: 159426
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Lucia Popp
by artist: Evi List
by artist: René Kollo
by artist: Hermann Prey
by artist: Benno Kusche
by artist: Bernd Weikl
by artist: Ivan Rebroff
by artist: Chor der Bayerischen Staatsoper München
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530616
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f706da0b9a26b2a5a3ae0fd237c3bca7f32970a22e92017d7ff838ffc2291d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1rPLvazfbCNpRtrzlBxhsq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1rPLvazfbCNpRtrzlBxhsq.
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Mirella Freni
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track: La bohème: Act I: Si Mi chiamano Mimi
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  duration: PT5M19S
  duration ms: 319013
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  by artist: Giacomo Puccini
  by artist: Luciano Pavarotti
  by artist: Vienna State Opera Orchestra
  by artist: Gianni Raimondi
  by artist: Plácido Domingo
  by artist: Orazio Mori
  by artist: Mirella Freni
  by artist: Alberto Rinaldi
  by artist: Margarita Guglielmi
  by artist: Wolfgang Brendel
  by artist: Vienna State Opera Chorus
  by artist: Carlos Kleiber
  by artist: Herbert von Karajan
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  by artist: Seiji Ozawa
  by artist: García Navarro
  in album: Mirella Freni
    type: MusicAlbum
    date published: 2016-07-01
track: Aïda: Act I: Ritorna vincitor!
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    type: MusicAlbum
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track: La bohème: Act III: Mimi! … Speravo di trovarvi qui
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  by artist: Luciano Pavarotti
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  by artist: Orazio Mori
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  by artist: Margarita Guglielmi
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  by artist: Alberto Rinaldi
  by artist: Claudio Abbado
  by artist: García Navarro
  by artist: Herbert von Karajan
  by artist: Seiji Ozawa
  by artist: Carlos Kleiber
  in album: Mirella Freni
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    date published: 2016-07-01
track: Aïda: Act IV: La fatal pietra sovra me si chiuse
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  by artist: Luciano Pavarotti
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  by artist: Roberto Abbado
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    type: MusicAlbum
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track: La bohème: Act III: Marcello, finalmente
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  duration ms: 338720
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  by artist: Giacomo Puccini
  by artist: Orazio Mori
  by artist: Mirella Freni
  by artist: Margarita Guglielmi
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  by artist: Plácido Domingo
  by artist: Vienna State Opera Orchestra
  by artist: Alberto Rinaldi
  by artist: Luciano Pavarotti
  by artist: Herbert von Karajan
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  by artist: Seiji Ozawa
  by artist: Carlos Kleiber
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    date published: 2016-07-01
track: Eugene Onegin, Op. 24, TH 5: Act I: Puskai pogibnu ya, no pryezhde
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  by artist: Pyotr Ilyich Tchaikovsky
  by artist: Wolfgang Brendel
  by artist: Mirella Freni
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  by artist: Seiji Ozawa
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    date published: 2016-07-01
track: La bohème: Act III: D'onde lieta usci
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  by artist: Gianni Raimondi
  by artist: Margarita Guglielmi
  by artist: Plácido Domingo
  by artist: Wolfgang Brendel
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  by artist: Alberto Rinaldi
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  by artist: García Navarro
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    type: MusicAlbum
    date published: 2016-07-01
track: Eugene Onegin, Op. 24, TH 5: Act III: O! Kak mnye tyazhelo! … Onegin! Ya togda molozhe
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track: La bohème: Act IV: Sono andati?
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track: The Queen of Spades, Op. 68: Act III: Uzh polnoch blizitsya - Akh! Istomilas ya gorem
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track: Manon Lescaut: Act IV: Sola, perduta, abbandonata
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track: The Queen of Spades, Op. 68: Act III: A yesli mne v otvet - O da, minovali stradanya
track: Manon Lescaut: Act IV: Fra le tue braccia, amore
track: Fedora: Act II: Loris Ipanoff, oggi Io Czar … Mia madre, la mia
track: Don Carlos: Act I: Io vengo a domandar
track: Fedora: Act II: Vedi io piango ma se piango
track: Don Carlos: Act IV: Tu che la vanita
track: Otello: Otello, Act III: Dio ti giocondi, o sposo
track: Simon Boccanegra, Act I: Come in quest'ora bruna

Mirella Freni
type: MusicAlbum
date published: 2016-07-01

The Queen of Spades, Op. 68: Act III: A yesli mne v otvet - O da, minovali stradanya
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  type: MusicAlbum
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Manon Lescaut: Act IV: Fra le tue braccia, amore
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  type: MusicAlbum
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Fedora: Act II: Loris Ipanoff, oggi Io Czar … Mia madre, la mia
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Don Carlos: Act I: Io vengo a domandar
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Fedora: Act II: Vedi io piango ma se piango
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Don Carlos: Act IV: Tu che la vanita
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Otello: Otello, Act III: Dio ti giocondi, o sposo
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Simon Boccanegra, Act I: Come in quest'ora bruna
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ORFEO 40th Anniversary Edition - Legendary Conductors
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track: Coriolan Overture, Op. 62 (Live)
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track: Symphony No. 3 in F Major, Op. 90: I. Allegro con brio
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track: Symphony No. 6 in B Minor, Op. 74, TH 30 "Pathétique": I. Adagio - Allegro non troppo
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track: Symphony No. 9 in D Minor, Op. 125 "Choral": I. Allegro ma non troppo, un poco maestoso (Live)
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  by artist: Ludwig van Beethoven
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track: Les préludes, S. 97 (Live)
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track: Symphony No. 2 in D Major, Op. 73: I. Allegro non troppo
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track: Symphony No. 2 in B-Flat Major, D. 125: I. Largo - Allegro vivace (Live)
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track: Symphony No. 5 in B-Flat Major, WAB 105: I. Adagio - Allegro
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track: Symphony No. 4 in B-Flat Major, Op. 60: I. Adagio - Allegro vivace (Live)
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track: Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": I. Allegro con brio (Live)
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track: Symphony No. 3 in F Major, Op. 90: II. Andante
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track: Symphony No. 6 in B Minor, Op. 74, TH 30 "Pathétique": II. Allegro con gracia
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track: Symphony No. 9 in D Minor, Op. 125 "Choral": II. Molto vivace (Live)
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track: Symphony No. 1 in C Minor, Op. 68: I. Un poco sostenuto - Allegro (Live)
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track: Symphony No. 2 in D Major, Op. 73: II. Adagio non troppo
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track: Symphony No. 2 in B-Flat Major, D. 125: II. Andante (Live)
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track: Symphony No. 5 in B-Flat Major, WAB 105: II. Adagio
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track: Symphony No. 4 in B-Flat Major, Op. 60: II. Adagio (Live)
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track: Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": II. Marcia funebre. Adagio assai (Live)
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track: Symphony No. 1 in C Minor, Op. 68: II. Andante sostenuto (Live)
track: Symphony No. 2 in B-Flat Major, D. 125: III. Menuetto. Allegro vivace - Trio (Live)
track: Symphony No. 5 in B-Flat Major, WAB 105: III. Scherzo. Molto vivace
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track: Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": III. Scherzo. Allegro vivace (Live)
track: Symphony No. 3 in F Major, Op. 90: IV. Allegro
track: Symphony No. 6 in B Minor, Op. 74, TH 30 "Pathétique": IV. Finale. Adagio lamentoso
track: Symphony No. 9 in D Minor, Op. 125 "Choral": IV. Finale. Presto - Allegro assai (Live)
track: Symphony No. 1 in C Minor, Op. 68: III. Un poco allegretto e grazioso (Live)
track: Symphony No. 2 in B-Flat Major, D. 125: IV. Presto vivace (Live)
track: Symphony No. 5 in B-Flat Major, WAB 105: IV. Finale. Adagio - Allegro moderato
track: Symphony No. 4 in B-Flat Major, Op. 60: IV. Allegro ma non troppo (Live)
track: Symphony No. 5 in B-Flat Major, Op. 100: I. Andante (Live)
track: Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": IV. Finale. Allegro molto (Live)
track: Symphony No. 7 in A Major, Op. 92: I. Poco sostenuto - Vivace
track: Symphony No. 9 in D Minor, Op. 125 "Choral": IV. Presto. O Freunde, nicht diese Tone! Freude schoner Gotterfunken (Live)
track: Symphony No. 1 in C Minor, Op. 68: IV. Adagio - Più andante - Allegro non troppo ma con brio (Live)
track: A Hero's Life, Op. 40: The Hero
track: Symphony No. 5 in B-Flat Major, Op. 100: II. Allegro marcato (Live)
track: Symphony No. 7 in A Major, Op. 92: II. Allegretto
track: A Hero's Life, Op. 40: The Hero's Enemies
track: Symphony No. 5 in B-Flat Major, Op. 100: III. Adagio (Live)
track: Symphony No. 7 in A Major, Op. 92: III. Presto, assai meno presto
track: A Hero's Life, Op. 40: The Hero's Companion, the Hero's Field of Battle
track: Symphony No. 5 in B-Flat Major, Op. 100: IV. Allegro giocoso (Live)
track: Symphony No. 7 in A Major, Op. 92: IV. Allegro con brio
track: A Hero's Life, Op. 40: The Hero's Works of Peace
track: A Hero's Life, Op. 40: The Hero's Withdrawal from the World

Ludwig van Beethoven
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Bavarian State Orchestra
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Carlos Kleiber
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ORFEO 40th Anniversary Edition - Legendary Conductors
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date published: 2020-06-19

Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": II. Marcia funebre. Adagio assai (Live)
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Symphony No. 3 in F Major, Op. 90: III. Poco allegretto
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Symphony No. 6 in B Minor, Op. 74, TH 30 "Pathétique": III. Allegro molto vivace
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Symphony No. 9 in D Minor, Op. 125 "Choral": III. Adagio molto e cantabile - Andante moderato (Live)
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Symphony No. 1 in C Minor, Op. 68: II. Andante sostenuto (Live)
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Symphony No. 2 in B-Flat Major, D. 125: III. Menuetto. Allegro vivace - Trio (Live)
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Symphony No. 5 in B-Flat Major, WAB 105: III. Scherzo. Molto vivace
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Symphony No. 4 in B-Flat Major, Op. 60: III. Menuetto. Allegro vivace (Live)
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Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": III. Scherzo. Allegro vivace (Live)
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Symphony No. 3 in F Major, Op. 90: IV. Allegro
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Symphony No. 6 in B Minor, Op. 74, TH 30 "Pathétique": IV. Finale. Adagio lamentoso
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Symphony No. 9 in D Minor, Op. 125 "Choral": IV. Finale. Presto - Allegro assai (Live)
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Symphony No. 1 in C Minor, Op. 68: III. Un poco allegretto e grazioso (Live)
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Symphony No. 2 in B-Flat Major, D. 125: IV. Presto vivace (Live)
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Symphony No. 5 in B-Flat Major, WAB 105: IV. Finale. Adagio - Allegro moderato
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Symphony No. 4 in B-Flat Major, Op. 60: IV. Allegro ma non troppo (Live)
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Symphony No. 5 in B-Flat Major, Op. 100: I. Andante (Live)
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Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": IV. Finale. Allegro molto (Live)
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Symphony No. 9 in D Minor, Op. 125 "Choral": IV. Presto. O Freunde, nicht diese Tone! Freude schoner Gotterfunken (Live)
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A Hero's Life, Op. 40: The Hero
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Symphony No. 5 in B-Flat Major, Op. 100: II. Allegro marcato (Live)
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A Hero's Life, Op. 40: The Hero's Enemies
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Symphony No. 7 in A Major, Op. 92: III. Presto, assai meno presto
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A Hero's Life, Op. 40: The Hero's Companion, the Hero's Field of Battle
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Symphony No. 7 in A Major, Op. 92: IV. Allegro con brio
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A Hero's Life, Op. 40: The Hero's Works of Peace
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A Hero's Life, Op. 40: The Hero's Withdrawal from the World
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Verdi: La Traviata
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track: La traviata, Act I: Dell'invito trascorsa è già l'ora
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track: La traviata, Act II: Di Madride noi siam mattadori
track: La traviata, Act I: Libiamo ne' lieti calici "Brindisi"
track: La traviata, Act II: Alfredo! Voi!
track: La traviata, Act I: Che è ciò?
track: La traviata, Act II: Invitato a qui seguirmi
track: La traviata, Act I: Un dì felice, eterea
track: La traviata, Act II: Ogni suo aver tal femmina
track: La traviata, Act I: Ebben? che diavol fate?
track: La traviata, Act II: Di sprezzo degno se stesso rende
track: La traviata, Act I: Si ridesta in ciel l'aurora
track: La traviata, Act II: Alfredo, Alfredo, di questo core
track: La traviata, Act I: E strano! - Ah, fors'è lui
track: La traviata, Act III: Prelude
track: La traviata, Act I: Follie! Follie! – Sempre libera "Cabaletta"
track: La traviata, Act III: Annina? - Comandate?
track: La traviata, Act II: Lunge da lei - De' miei bollenti spiriti
track: La traviata, Act III: Tenesta la promessa – Addio del passato "Letter Scene"
track: La traviata, Act II: Annina, donde vieni? - O mio rimorso!
track: La traviata, Act III: Largo a quadrupede
track: La traviata, Act II: Alfredo? - Per Parigi or or partiva
track: La traviata, Act III: Signora – Che t'accadde – Parigi, o cara
track: La traviata, Act II: Pura siccome un angelo
track: La traviata, Act III: Ah, non più! – Ah! Gran Dio! Morir sì giovine
track: La traviata, Act II: Non sapete quale affetto
track: La traviata, Act III: Ah, Violetta! - Voi? Signor?
track: La traviata, Act II: Un dì, quando le veneri
track: La traviata, Act III: Prendi, quest'è l'immagine
track: La traviata, Act II: Ah! Dite alla giovine
track: La traviata, Act II: Imponete - Non amarlo ditegli
track: La traviata, Act II: Dammi tu forza, o cielo!
track: La traviata, Act II: Che fai? - Nulla
track: La traviata, Act II: Ah, vive sol quel core
track: La traviata, Act II: Aria. Di Provenza il mar
track: La traviata, Act II: Né rispondi d'un padre – No, non udrai rimproveri

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OpenTimestamps Proof of Existence
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5367dc485c0640077e9abd7a110d86693bb220bb4099834f9ced09a1087b65. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4FYSLgCGNDPxcFXJjeBBcq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4FYSLgCGNDPxcFXJjeBBcq.
  date published: 2026-06-13T15:41:10Z
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La traviata, Act I: Libiamo ne' lieti calici "Brindisi"
type: MusicRecording
duration: PT2M55S
duration ms: 175506
explicit: false
by artist: Giuseppe Verdi
by artist: Ileana Cotrubas
by artist: Plácido Domingo
by artist: Chor der Bayerischen Staatsoper München
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
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isrc code: DEF057730030
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/41ujv4mhxlqR8nlnieDpDp.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9f3a43e734ab199706bedfde51dc64279056bb39f4b3b035fd808dc347370a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/41ujv4mhxlqR8nlnieDpDp.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/41ujv4mhxlqR8nlnieDpDp.
  date published: 2026-06-13T12:47:07Z
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La traviata, Act II: Alfredo! Voi!
type: MusicRecording
duration: PT3M55S
duration ms: 235040
explicit: false
by artist: Giuseppe Verdi
by artist: Stefania Malagu
by artist: Ileana Cotrubas
by artist: Plácido Domingo
by artist: Walter Gullino
by artist: Bruno Grella
by artist: Paul Friess
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/1Tn7qquF644DuwEBMx6jyh.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d690e8d41a61ba9fcb81a144932d0bbd6e0c506bb9aabb26384402f3d9cbc7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Tn7qquF644DuwEBMx6jyh.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1Tn7qquF644DuwEBMx6jyh.
  date published: 2026-06-13T13:32:09Z
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La traviata, Act I: Che è ciò?
type: MusicRecording
duration: PT2M18S
duration ms: 138400
explicit: false
by artist: Giuseppe Verdi
by artist: Stefania Malagu
by artist: Ileana Cotrubas
by artist: Walter Gullino
by artist: Plácido Domingo
by artist: Bruno Grella
by artist: Alfredo Giacomotti
by artist: Giovanni Foiani
by artist: Bavarian State Opera Chorus
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057730039
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x14eb2e848263b46b75e1f3c24dee52f27e7376132bc6caf58cdaea0135c9c550
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/60YpUlz7sjGMbhrIEHfrJW.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/60YpUlz7sjGMbhrIEHfrJW
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14eb2e848263b46b75e1f3c24dee52f27e7376132bc6caf58cdaea0135c9c550. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/60YpUlz7sjGMbhrIEHfrJW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/60YpUlz7sjGMbhrIEHfrJW.
  date published: 2026-06-13T17:25:41Z
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La traviata, Act II: Invitato a qui seguirmi
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duration: PT2M27S
duration ms: 147960
explicit: false
by artist: Giuseppe Verdi
by artist: Stefania Malagu
by artist: Ileana Cotrubas
by artist: Plácido Domingo
by artist: Walter Gullino
by artist: Bruno Grella
by artist: Giovanni Foiani
by artist: Alfredo Giacomotti
by artist: Chor der Bayerischen Staatsoper München
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057730015
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/27tOu8qEEPl8M6KtrRHE0k.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0321d461280c2f4f739eaba20bab060cd62e136a00c5908e05f20831c3edce9d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/27tOu8qEEPl8M6KtrRHE0k.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/27tOu8qEEPl8M6KtrRHE0k.
  date published: 2026-06-13T15:41:10Z
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La traviata, Act I: Un dì felice, eterea
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duration: PT3M5S
duration ms: 185933
explicit: false
by artist: Giuseppe Verdi
by artist: Ileana Cotrubas
by artist: Plácido Domingo
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057730003
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3vlzWNb7EKwIn3chmVDCl9.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68896a46acc9a447aeaf36ebab4b98728566de0d0ce127301e1e8ee778f02aa2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3vlzWNb7EKwIn3chmVDCl9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3vlzWNb7EKwIn3chmVDCl9.
  date published: 2026-06-13T12:47:07Z
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La traviata, Act II: Ogni suo aver tal femmina
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duration: PT1M30S
duration ms: 90400
explicit: false
by artist: Giuseppe Verdi
by artist: Plácido Domingo
by artist: Walter Gullino
by artist: Bruno Grella
by artist: Giovanni Foiani
by artist: Alfredo Giacomotti
by artist: Chor der Bayerischen Staatsoper München
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057730016
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec74701aed5ba49108f05eb1846621901ad936d9a35e89cdacb92680ce7de1b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6Kg8tNizI7tUG6OwSiAKon.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6Kg8tNizI7tUG6OwSiAKon.
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La traviata, Act I: Ebben? che diavol fate?
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duration: PT1M12S
duration ms: 72693
explicit: false
by artist: Giuseppe Verdi
by artist: Ileana Cotrubas
by artist: Walter Gullino
by artist: Plácido Domingo
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057730033
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/47C322slNIg3MySUwXZS0r
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25bbb31189321faed7224997ff4587999d0b725d9a4bce250f726678dc5eeec. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/47C322slNIg3MySUwXZS0r.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/47C322slNIg3MySUwXZS0r.
  date published: 2026-06-13T15:41:10Z
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La traviata, Act II: Di sprezzo degno se stesso rende
type: MusicRecording
duration: PT1M48S
duration ms: 108266
explicit: false
by artist: Giuseppe Verdi
by artist: Stefania Malagu
by artist: Plácido Domingo
by artist: Walter Gullino
by artist: Sherrill Milnes
by artist: Bruno Grella
by artist: Giovanni Foiani
by artist: Alfredo Giacomotti
by artist: Chor der Bayerischen Staatsoper München
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
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isrc code: DEF057730017
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6fa16ea4ce9c8de9e3803b6cac16670736257d6fdcdf63849b6df7c7b15d9f9f
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3BbR48jYSEKudePYPmeJp7
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa16ea4ce9c8de9e3803b6cac16670736257d6fdcdf63849b6df7c7b15d9f9f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3BbR48jYSEKudePYPmeJp7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3BbR48jYSEKudePYPmeJp7.
  date published: 2026-06-13T15:41:10Z
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La traviata, Act I: Si ridesta in ciel l'aurora
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duration: PT1M37S
duration ms: 97933
explicit: false
by artist: Giuseppe Verdi
by artist: Stefania Malagu
by artist: Walter Gullino
by artist: Bruno Grella
by artist: Giovanni Foiani
by artist: Alfredo Giacomotti
by artist: Chor der Bayerischen Staatsoper München
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4kTBeUJTsFULZX6m4n7Hwn.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4kTBeUJTsFULZX6m4n7Hwn
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2dc1aea2cc4eff3ff008e0af67e4ae7c0a488ffcedd6394e5991fc8e83dff48. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4kTBeUJTsFULZX6m4n7Hwn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4kTBeUJTsFULZX6m4n7Hwn.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0xc2dc1aea2cc4eff3ff008e0af67e4ae7c0a488ffcedd6394e5991fc8e83dff48","isrc":"DEF057730034","name":"La traviata, Act I: Si ridesta in ciel l'aurora","registered_at":"2026-06-06T10:07:34Z","spotify_id":"4kTBeUJTsFULZX6m4n7Hwn","type":"track"}

La traviata, Act II: Alfredo, Alfredo, di questo core
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duration: PT4M3S
duration ms: 243933
explicit: false
by artist: Giuseppe Verdi
by artist: Ileana Cotrubas
by artist: Stefania Malagu
by artist: Sherrill Milnes
by artist: Plácido Domingo
by artist: Walter Gullino
by artist: Bruno Grella
by artist: Giovanni Foiani
by artist: Alfredo Giacomotti
by artist: Chor der Bayerischen Staatsoper München
by artist: Carlos Kleiber
by artist: Bavarian State Orchestra
in album: Verdi: La Traviata
  type: MusicAlbum
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isrc code: DEF057730042
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3971d206d60117af31d21bda7c93cbbf4fca9dafa68919c3c5c3cba4a94e64b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4U8Vd5xvucRo5ghFHwVEpe.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4U8Vd5xvucRo5ghFHwVEpe.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0xe3971d206d60117af31d21bda7c93cbbf4fca9dafa68919c3c5c3cba4a94e64b","isrc":"DEF057730042","name":"La traviata, Act II: Alfredo, Alfredo, di questo core","registered_at":"2026-06-08T02:40:39Z","spotify_id":"4U8Vd5xvucRo5ghFHwVEpe","type":"track"}

La traviata, Act I: E strano! - Ah, fors'è lui
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duration: PT3M36S
duration ms: 216706
explicit: false
by artist: Giuseppe Verdi
by artist: Ileana Cotrubas
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
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isrc code: DEF057730004
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3O5ALEXsR3Us1ys00AD7c2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3O5ALEXsR3Us1ys00AD7c2
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c1b25e303eb09fb035847ce108b8b0d2f5dad80af4329c1d5837feb01ef3db. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3O5ALEXsR3Us1ys00AD7c2.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3O5ALEXsR3Us1ys00AD7c2.
  date published: 2026-06-13T12:47:07Z
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La traviata, Act III: Prelude
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duration: PT3M36S
duration ms: 216000
explicit: false
by artist: Giuseppe Verdi
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
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isrc code: DEF057730009
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6zwiLrcBfKzIC5yE7W9Qai.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6zwiLrcBfKzIC5yE7W9Qai
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d2841acd337cc62fc4d32823526610cb01d63251616162ba7e5ee49f0c3614. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6zwiLrcBfKzIC5yE7W9Qai.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6zwiLrcBfKzIC5yE7W9Qai.
  date published: 2026-06-13T17:25:41Z
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La traviata, Act I: Follie! Follie! – Sempre libera "Cabaletta"
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duration: PT4M23S
duration ms: 263333
explicit: false
by artist: Giuseppe Verdi
by artist: Ileana Cotrubas
by artist: Plácido Domingo
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057730041
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3C6UvWBUrA2cyHlvB6dGCP.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3C6UvWBUrA2cyHlvB6dGCP
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17fa02d5e660b8403f00b8fb416c512533a9026264898f204bba6377df9251ae. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3C6UvWBUrA2cyHlvB6dGCP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3C6UvWBUrA2cyHlvB6dGCP.
  date published: 2026-06-13T12:47:07Z
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La traviata, Act III: Annina? - Comandate?
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duration ms: 233800
explicit: false
by artist: Giuseppe Verdi
by artist: Ileana Cotrubas
by artist: Helena Jungwirth
by artist: Giovanni Foiani
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057730022
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4p2OhRGkevAXgTmupaPWGO
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa6b4e3c0483655ae9f6c8be53544e3713167cc82620a7d279bc2cf1d03dd45. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4p2OhRGkevAXgTmupaPWGO.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4p2OhRGkevAXgTmupaPWGO.
  date published: 2026-06-13T17:25:41Z
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La traviata, Act II: Lunge da lei - De' miei bollenti spiriti
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duration: PT3M33S
duration ms: 213133
explicit: false
by artist: Giuseppe Verdi
by artist: Plácido Domingo
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
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isrc code: DEF057730005
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dc7222cde717ae57d168ef661d7cfbbf3e9542f6e7b6a9325b87a15452d84d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2wcaQSBshsekwpHINTWHkG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2wcaQSBshsekwpHINTWHkG.
  date published: 2026-06-13T15:41:10Z
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La traviata, Act III: Tenesta la promessa – Addio del passato "Letter Scene"
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duration: PT3M58S
duration ms: 238640
explicit: false
by artist: Giuseppe Verdi
by artist: Ileana Cotrubas
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8014a528d0d1a1b9c72656bbdde8acda96c7808f3cb6a52e4f83feffddec57. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2KjilYzrXrNhcEl5cA1HDZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2KjilYzrXrNhcEl5cA1HDZ.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x6c8014a528d0d1a1b9c72656bbdde8acda96c7808f3cb6a52e4f83feffddec57","isrc":"DEF057730010","name":"La traviata, Act III: Tenesta la promessa – Addio del passato \"Letter Scene\"","registered_at":"2026-06-08T19:35:54Z","spotify_id":"2KjilYzrXrNhcEl5cA1HDZ","type":"track"}

La traviata, Act II: Annina, donde vieni? - O mio rimorso!
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duration: PT2M18S
duration ms: 138733
explicit: false
by artist: Giuseppe Verdi
by artist: Helena Jungwirth
by artist: Plácido Domingo
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953515
additional property: OTSRecordURL
  type: PropertyValue
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a76c0d8032351b66008aa683748fdc123f6a4c8379bf0c49a4e28453d6dd338. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2zO8BmI0QlaDVspujrZ1Vn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2zO8BmI0QlaDVspujrZ1Vn.
  date published: 2026-06-13T12:53:06Z
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La traviata, Act III: Largo a quadrupede
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duration: PT0M44S
duration ms: 44826
explicit: false
by artist: Giuseppe Verdi
by artist: Chor der Bayerischen Staatsoper München
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
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isrc code: DEF057730011
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3iLP4FF0h7IEAvpjDc3dQt
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d5101c307c5b31fa7037b88f1dadc756c97c6d049d585d79c9a077005e9358. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3iLP4FF0h7IEAvpjDc3dQt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3iLP4FF0h7IEAvpjDc3dQt.
  date published: 2026-06-13T13:32:09Z
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La traviata, Act II: Alfredo? - Per Parigi or or partiva
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duration ms: 198226
explicit: false
by artist: Giuseppe Verdi
by artist: Ileana Cotrubas
by artist: Helena Jungwirth
by artist: Walter Gullino
by artist: Sherrill Milnes
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057730006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5gHYcWB1EEgoVI0F51MQRE
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76451088e815db060e2bc0d7366bbe034eaca71b9ad868f81824f5af4ba082c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5gHYcWB1EEgoVI0F51MQRE.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5gHYcWB1EEgoVI0F51MQRE.
  date published: 2026-06-13T15:41:10Z
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La traviata, Act III: Signora – Che t'accadde – Parigi, o cara
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by artist: Giuseppe Verdi
by artist: Ileana Cotrubas
by artist: Helena Jungwirth
by artist: Plácido Domingo
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057730012
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
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  date published: 2026-06-13T17:25:41Z
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La traviata, Act II: Pura siccome un angelo
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by artist: Carlos Kleiber
in album: Verdi: La Traviata
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additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1PndSFABwwDXSfzhq7DL0B
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cdac5a441a5e4c5fd77cc23c6d23d4e7d32b60df94688b063ebf2cc5561fa1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1PndSFABwwDXSfzhq7DL0B.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1PndSFABwwDXSfzhq7DL0B.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xc0cdac5a441a5e4c5fd77cc23c6d23d4e7d32b60df94688b063ebf2cc5561fa1","isrc":"DEF057730025","name":"La traviata, Act II: Pura siccome un angelo","registered_at":"2026-06-07T19:35:57Z","spotify_id":"1PndSFABwwDXSfzhq7DL0B","type":"track"}

La traviata, Act III: Ah, non più! – Ah! Gran Dio! Morir sì giovine
type: MusicRecording
duration: PT3M0S
duration ms: 180200
explicit: false
by artist: Giuseppe Verdi
by artist: Ileana Cotrubas
by artist: Plácido Domingo
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057730023
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T14:50:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd61194f598c35feb05592551acaf978e4c02c26ac1658e8050dc54c8fb2ff371
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2HWq7WjfWWaZnOIxujYPT5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2HWq7WjfWWaZnOIxujYPT5
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd61194f598c35feb05592551acaf978e4c02c26ac1658e8050dc54c8fb2ff371","isrc":"DEF057730023","name":"La traviata, Act III: Ah, non più! – Ah! Gran Dio! Morir sì giovine","registered_at":"2026-06-09T14:50:31Z","spotify_id":"2HWq7WjfWWaZnOIxujYPT5","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61194f598c35feb05592551acaf978e4c02c26ac1658e8050dc54c8fb2ff371. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2HWq7WjfWWaZnOIxujYPT5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2HWq7WjfWWaZnOIxujYPT5.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0xd61194f598c35feb05592551acaf978e4c02c26ac1658e8050dc54c8fb2ff371","isrc":"DEF057730023","name":"La traviata, Act III: Ah, non più! – Ah! Gran Dio! Morir sì giovine","registered_at":"2026-06-09T14:50:31Z","spotify_id":"2HWq7WjfWWaZnOIxujYPT5","type":"track"}

La traviata, Act II: Non sapete quale affetto
type: MusicRecording
duration: PT1M58S
duration ms: 118973
explicit: false
by artist: Giuseppe Verdi
by artist: Ileana Cotrubas
by artist: Sherrill Milnes
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057730026
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T19:33:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6ef293d2bb6f61c7334f53b7495d7bd21dde4a6ff2798401d519214a5fd84e16
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2kAGZYhdvdLx8wyAucH9D9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2kAGZYhdvdLx8wyAucH9D9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6ef293d2bb6f61c7334f53b7495d7bd21dde4a6ff2798401d519214a5fd84e16","isrc":"DEF057730026","name":"La traviata, Act II: Non sapete quale affetto","registered_at":"2026-06-07T19:33:50Z","spotify_id":"2kAGZYhdvdLx8wyAucH9D9","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef293d2bb6f61c7334f53b7495d7bd21dde4a6ff2798401d519214a5fd84e16. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2kAGZYhdvdLx8wyAucH9D9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2kAGZYhdvdLx8wyAucH9D9.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x6ef293d2bb6f61c7334f53b7495d7bd21dde4a6ff2798401d519214a5fd84e16","isrc":"DEF057730026","name":"La traviata, Act II: Non sapete quale affetto","registered_at":"2026-06-07T19:33:50Z","spotify_id":"2kAGZYhdvdLx8wyAucH9D9","type":"track"}

La traviata, Act III: Ah, Violetta! - Voi? Signor?
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duration: PT1M43S
duration ms: 103293
explicit: false
by artist: Giuseppe Verdi
by artist: Ileana Cotrubas
by artist: Plácido Domingo
by artist: Sherrill Milnes
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057730013
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T16:58:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe34de1e5e8b63adaa19412cea5ef02ae51b0840f922b090537f07b66ad3f2966
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/55iHWJ6m2Q7gwXBLEnMo1A.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/55iHWJ6m2Q7gwXBLEnMo1A
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34de1e5e8b63adaa19412cea5ef02ae51b0840f922b090537f07b66ad3f2966. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/55iHWJ6m2Q7gwXBLEnMo1A.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/55iHWJ6m2Q7gwXBLEnMo1A.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0xe34de1e5e8b63adaa19412cea5ef02ae51b0840f922b090537f07b66ad3f2966","isrc":"DEF057730013","name":"La traviata, Act III: Ah, Violetta! - Voi? Signor?","registered_at":"2026-06-09T16:58:10Z","spotify_id":"55iHWJ6m2Q7gwXBLEnMo1A","type":"track"}

La traviata, Act II: Un dì, quando le veneri
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duration: PT2M34S
duration ms: 154666
explicit: false
by artist: Giuseppe Verdi
by artist: Ileana Cotrubas
by artist: Sherrill Milnes
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057730027
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T13:13:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1f95cdb1dd94335de79d6e73d3747dc88bdc22c15526d5723b8f448e6872d116
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953515
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/42ds7a08Lhb5Dq5bCOZGSa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/42ds7a08Lhb5Dq5bCOZGSa
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f95cdb1dd94335de79d6e73d3747dc88bdc22c15526d5723b8f448e6872d116. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/42ds7a08Lhb5Dq5bCOZGSa.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/42ds7a08Lhb5Dq5bCOZGSa.
  date published: 2026-06-13T12:53:06Z
  text: {"copyright_id":"0x1f95cdb1dd94335de79d6e73d3747dc88bdc22c15526d5723b8f448e6872d116","isrc":"DEF057730027","name":"La traviata, Act II: Un dì, quando le veneri","registered_at":"2026-06-07T13:13:12Z","spotify_id":"42ds7a08Lhb5Dq5bCOZGSa","type":"track"}

La traviata, Act III: Prendi, quest'è l'immagine
type: MusicRecording
duration: PT3M51S
duration ms: 231933
explicit: false
by artist: Giuseppe Verdi
by artist: Ileana Cotrubas
by artist: Helena Jungwirth
by artist: Plácido Domingo
by artist: Sherrill Milnes
by artist: Giovanni Foiani
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057730038
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T02:38:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x042572c4ea0e4d29e11af7b79fbcd5ecbed6f319f396d141094c977e5adb974d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3JW2whdDnskxodYab2jZak.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3JW2whdDnskxodYab2jZak
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042572c4ea0e4d29e11af7b79fbcd5ecbed6f319f396d141094c977e5adb974d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3JW2whdDnskxodYab2jZak.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3JW2whdDnskxodYab2jZak.
  date published: 2026-06-13T17:25:41Z
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La traviata, Act II: Ah! Dite alla giovine
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duration: PT4M6S
duration ms: 246000
explicit: false
by artist: Giuseppe Verdi
by artist: Ileana Cotrubas
by artist: Sherrill Milnes
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057730028
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T07:12:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd04b12634588fc26d1bbcb97aa901a05d8977a904a042256dd15fd68b3ec088d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953515
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5OSgPA2rW3ambu0LaWlIJs.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5OSgPA2rW3ambu0LaWlIJs
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04b12634588fc26d1bbcb97aa901a05d8977a904a042256dd15fd68b3ec088d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5OSgPA2rW3ambu0LaWlIJs.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5OSgPA2rW3ambu0LaWlIJs.
  date published: 2026-06-13T12:53:06Z
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La traviata, Act II: Imponete - Non amarlo ditegli
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duration: PT4M17S
duration ms: 257826
explicit: false
by artist: Giuseppe Verdi
by artist: Ileana Cotrubas
by artist: Sherrill Milnes
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
  type: MusicAlbum
  date published: 1977-01-01
isrc code: DEF057730029
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T11:51:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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La traviata, Act II: Dammi tu forza, o cielo!
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by artist: Giuseppe Verdi
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by artist: Helena Jungwirth
by artist: Bavarian State Orchestra
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in album: Verdi: La Traviata
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additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698316f893faf7162490cc24712348e3a78b23273182ffa7d5b3e7adfb2f0f5b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4YVGubFRscrfeepEGAGyvz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4YVGubFRscrfeepEGAGyvz.
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La traviata, Act II: Che fai? - Nulla
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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La traviata, Act II: Ah, vive sol quel core
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by artist: Giuseppe Verdi
by artist: Plácido Domingo
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by artist: Paul Winter
by artist: Sherrill Milnes
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
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additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSRecordURL
  type: PropertyValue
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additional property: OTSVerificationAPI
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf92f3b556f09fa06117dbf9bdfae8c1eec7b85fff16cdb653f2323cc9e89a5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5OyUw0mfkdcyuaZsGtt0kw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5OyUw0mfkdcyuaZsGtt0kw.
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La traviata, Act II: Aria. Di Provenza il mar
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by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
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additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccd4547e22f325dd419b398faa41880dc62630ea9388912479f0afbd9a4a55a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7CpyxLr9PS452sWNWR1p1f.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7CpyxLr9PS452sWNWR1p1f.
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La traviata, Act II: Né rispondi d'un padre – No, non udrai rimproveri
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by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Verdi: La Traviata
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5a8bd0bfa5f3d4e205907d06a613fd28cbfbcf9aa2921eb2bc0bec8bed0ac1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5jEBffSE4zn3adIyq10vGx.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5jEBffSE4zn3adIyq10vGx.
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Verdi: La Traviata - Highlights
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track: La traviata, Act I: Prelude
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track: La traviata, Act I: Libiamo ne' lieti calici "Brindisi"
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  by artist: Chor der Bayerischen Staatsoper München
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
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track: La traviata, Act I: Che è ciò?
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  by artist: Stefania Malagu
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track: La traviata, Act I: Un dì felice, eterea
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track: La traviata, Act II: Lunge da lei - De' miei bollenti spiriti
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track: La traviata, Act II: Annina, donde vieni? - O mio rimorso!
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  by artist: Helena Jungwirth
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track: La traviata, Act II: Un dì, quando le veneri
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track: La traviata, Act II: Ah! Dite alla giovine
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track: La traviata, Act II: Imponete - Non amarlo ditegli
track: La traviata / Act 2: "Dammi tu forza, o cielo!"
track: La traviata, Act II: Aria. Di Provenza il mar
track: La traviata, Act II: Di Madride noi siam mattadori
track: La traviata, Act II: Invitato a qui seguirmi
track: La traviata, Act II: Ogni suo aver tal femmina
track: La traviata / Act 2: "Di sprezzo degno...Alfredo, Alfredo, di questo core"
track: La traviata, Act III: Tenesta la promessa – Addio del passato "Letter Scene"
track: La traviata / Act 3: "Signora..." "Che t'accade?"
track: La traviata / Act 3: "Parigi, o cara, noi lasceremo"
track: La traviata, Act III: Ah, Violetta! - Voi? Signor?
track: La traviata, Act III: Prendi, quest'è l'immagine

La traviata, Act II: Imponete - Non amarlo ditegli
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La traviata / Act 2: "Dammi tu forza, o cielo!"
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La traviata, Act II: Aria. Di Provenza il mar
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La traviata, Act II: Di Madride noi siam mattadori
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by artist: Stefania Malagu
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by artist: Alfredo Giacomotti
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by artist: Carlos Kleiber
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La traviata, Act II: Invitato a qui seguirmi
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by artist: Stefania Malagu
by artist: Ileana Cotrubas
by artist: Plácido Domingo
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by artist: Alfredo Giacomotti
by artist: Chor der Bayerischen Staatsoper München
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by artist: Carlos Kleiber
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La traviata, Act II: Ogni suo aver tal femmina
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by artist: Plácido Domingo
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by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
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La traviata / Act 2: "Di sprezzo degno...Alfredo, Alfredo, di questo core"
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duration ms: 350933
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by artist: Stefania Malagu
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by artist: Plácido Domingo
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by artist: Giovanni Foiani
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La traviata, Act III: Tenesta la promessa – Addio del passato "Letter Scene"
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by artist: Carlos Kleiber
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La traviata / Act 3: "Signora..." "Che t'accade?"
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by artist: Helena Jungwirth
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by artist: Plácido Domingo
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La traviata / Act 3: "Parigi, o cara, noi lasceremo"
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La traviata, Act III: Ah, Violetta! - Voi? Signor?
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La traviata, Act III: Prendi, quest'è l'immagine
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by artist: Ileana Cotrubas
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by artist: Giovanni Foiani
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
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  type: MusicAlbum
  date published: 1977-01-01

Carlos Kleiber - Complete Recordings on Deutsche Grammophon
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track: Die Fledermaus, Act II: No. 6, Introduction. Ein Souper heut uns winkt
track: Symphony No. 5 in C Minor, Op. 67: II. Andante con moto
track: Symphony No. 4 in E Minor, Op. 98: II. Andante moderato
track: Symphony No. 3 in D Major, D. 200: II. Allegretto
track: Die Fledermaus, Act I: No. 1a, Introduction. Täubchen, das entflattert ist
track: Die Fledermaus, Act II: Dialogue. Adele, wer hat denn dich hierher eingeladen?
track: Symphony No. 5 in C Minor, Op. 67: III. Allegro
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track: Symphony No. 8 in B Minor, D. 759 "Unfinished": I. Allegro moderato
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track: Die Fledermaus, Act I: No. 2, Trio. Nein, mit solchen Advokaten
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track: Die Fledermaus, Act I: No. 4, Trio. So muss allein ich bleiben
track: Die Fledermaus, Act II: No. 10, Csárdás. Klänge der Heimat
track: Die Fledermaus, Act I: Dialogue. Ach...diese Männer
track: Die Fledermaus, Act II: Dialogue. Bravo! Bravissimo!
track: Die Fledermaus, Act I: No. 5, Finale. Trinke, Liebchen, trinke schnell
track: Die Fledermaus, Act II: No. 11, Finale. Im Feuerstrom der Reben
track: Die Fledermaus, Act II: No. 11a, Finale. Herr, Chevalier, ich grüsse Sie!
track: Die Fledermaus, Act II: Dialogue. Wir werden jetzt sehen das Ballett
track: Die Fledermaus / Act II: Unter Donner und Blitz, Polka, Op. 324
track: Die Fledermaus / Act II: No. 11, Finale. c. Genug damit, genug
track: Die Fledermaus, Act III: No. 12, Entr'acte
track: Die Fledermaus, Act III: Dialogue. Täubchen, das entflattert ist
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track: Die Fledermaus, Act III: Dialogue. Ah, der Herr Direktor ist entschlafen

Die Fledermaus, Act II: No. 6, Introduction. Ein Souper heut uns winkt
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Symphony No. 4 in E Minor, Op. 98: II. Andante moderato
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Symphony No. 3 in D Major, D. 200: II. Allegretto
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Die Fledermaus, Act I: No. 1a, Introduction. Täubchen, das entflattert ist
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Die Fledermaus, Act II: Dialogue. Adele, wer hat denn dich hierher eingeladen?
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Symphony No. 5 in C Minor, Op. 67: III. Allegro
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Symphony No. 4 in E Minor, Op. 98: III. Allegro giocoso
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Die Fledermaus, Act I: Dialogue. Täubchen, das entflattert ist
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Die Fledermaus, Act II: No. 7, Couplet. Ich lade gern mir Gäste ein
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Symphony No. 5 in C Minor, Op. 67: IV. Allegro
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Die Fledermaus, Act II: Dialogue. Durchlaucht, hier ist Ihre Brieftasche wieder
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Symphony No. 8 in B Minor, D. 759 "Unfinished": I. Allegro moderato
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Die Fledermaus, Act I: Dialogue. Die arme Tante
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Die Fledermaus, Act II: No. 8a, Ach, meine Herr'n und Damen
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Symphony No. 7 in A Major, Op. 92: II. Allegretto
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Symphony No. 8 in B Minor, D. 759 "Unfinished": II. Andante con moto
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Die Fledermaus, Act I: No. 2, Trio. Nein, mit solchen Advokaten
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Die Fledermaus, Act II: No. 8b, Mein Herr Marquis "Adele's Laughing Song"
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Symphony No. 7 in A Major, Op. 92: III. Presto - Assai meno presto
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Die Fledermaus, Act I: Dialogue. Sag mal, also statt fünf musst du acht Tage
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Die Fledermaus, Act II: Dialogue. Hoheit, ein Chevalier Chagrin ist da
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Symphony No. 7 in A Major, Op. 92: IV. Allegro con brio
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Die Fledermaus, Act I: No. 3, Duet. Komm mit mir zum Souper
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Die Fledermaus, Act II: No. 9, Duet. Dieser Anstand, so manierlich
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Die Fledermaus, Act I: Dialogue. Seid ihr verrückt geworden?
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Die Fledermaus, Act II: Dialogue. Ah, da ist ja die schöne Unbekannte
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Die Fledermaus, Act I: No. 4, Trio. So muss allein ich bleiben
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Die Fledermaus, Act II: No. 10, Csárdás. Klänge der Heimat
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Die Fledermaus, Act I: Dialogue. Ach...diese Männer
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Die Fledermaus, Act II: Dialogue. Bravo! Bravissimo!
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Die Fledermaus, Act I: No. 5, Finale. Trinke, Liebchen, trinke schnell
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Die Fledermaus, Act II: No. 11, Finale. Im Feuerstrom der Reben
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Die Fledermaus, Act II: No. 11a, Finale. Herr, Chevalier, ich grüsse Sie!
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Die Fledermaus, Act II: Dialogue. Wir werden jetzt sehen das Ballett
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Die Fledermaus / Act II: Unter Donner und Blitz, Polka, Op. 324
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Die Fledermaus / Act II: No. 11, Finale. c. Genug damit, genug
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Die Fledermaus, Act III: No. 12, Entr'acte
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Die Fledermaus, Act III: Dialogue. Täubchen, das entflattert ist
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Die Fledermaus, Act III: No. 13, Melodram. So, da wär'n wir ja zu Hause
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Die Fledermaus, Act III: Dialogue. Ah, der Herr Direktor ist entschlafen
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Grosse Opern Vol. 2
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track: La traviata, Act II: Di Madride noi siam mattadori
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La traviata, Act III: Tenesta la promessa – Addio del passato "Letter Scene"
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La traviata, Act III: Ah, Violetta! - Voi? Signor?
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La traviata, Act III: Prendi, quest'è l'immagine
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Weber: Der Freischütz, J. 277
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track: Der Freischütz, J. 277, Act I: Viktoria! Viktoria! - Bauern-Marsch - Schau der Herr mich an als König!
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  subject of: OpenTimestamps Proof of Existence
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track: Der Freischütz, J. 277, Act I: Ein braver Mann
track: Der Freischütz, J. 277, Act I: Walzer
track: Der Freischütz, J. 277, Act I: Nein, länger trag' ich nicht die Qualen - Durch die Wälder, durch die Auen
track: Der Freischütz, J. 277, Act I: Kamerad!
track: Der Freischütz, J. 277, Act I: Hier im irdschen Jammertal
track: Der Freischütz, J. 277, Act I: Bruderherz!
track: Der Freischütz, J. 277, Act I: Schweig, damit dich niemand warnt!
track: Der Freischütz, J. 277, Act II: Schelm! Halt fest!
track: Der Freischütz, J. 277, Act II: So! Da oben mag ich den Herrn Urältervater
track: Der Freischütz, J. 277, Act II: Kommt ein schlanker Bursch gegangen
track: Der Freischütz, J. 277, Act II: Und der Bursch nicht minder schön
track: Der Freischütz, J. 277, Act II: Wie nahte mir der Schlummer - Leise, leise, fromme Weise!
track: Der Freischütz, J. 277, Act II: Meine Agathe!
track: Der Freischütz, J. 277, Act II: Wie? Was? Entsetzen!
track: Der Freischütz, J. 277, Act II: Milch des Mondes fiel aufs Kraut - Samiel! Samiel! Erschein! - Ha! Furchtbar gähnt der düstre Abgrund
track: Der Freischütz, J. 277, Act III: Entr'acte
track: Der Freischütz, J. 277, Act III: Ein herrliches Jagdwetter!
track: Der Freischütz, J. 277, Act III: Und ob die Wolke sie verhülle
track: Der Freischütz, J. 277, Act III: Du hast dich dazugehalten!
track: Der Freischütz, J. 277, Act III: Einst träumte meiner sel'gen Base - Trübe Augen, Liebchen, taugen
track: Der Freischütz, J. 277, Act III: Nun muß ich aber den Kranz holen
track: Der Freischütz, J. 277, Act III: Wir winden dir den Jungfernkranz
track: Der Freischütz, J. 277, Act III: Was gleicht wohl auf Erden dem Jägervergnügen?
track: Der Freischütz, J. 277, Act III: Genug der Freuden des Mahls
track: Der Freischütz, J. 277, Act III: Schaut, o schaut! Er traf die eigne Braut!
track: Der Freischütz, J. 277, Act III: Wer legt auf ihn so strengen Bann?

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OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5edfd07a1489ee18a3bfa3f27fb30f55c49aaa222f122afb243e5e08f98e1002. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/73Sa3lFZg4xEZXEHDsCRNo.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/73Sa3lFZg4xEZXEHDsCRNo.
date published: 2026-06-13T15:41:10Z
text: {"copyright_id":"0x5edfd07a1489ee18a3bfa3f27fb30f55c49aaa222f122afb243e5e08f98e1002","isrc":"DEF057330220","name":"Der Freischütz, J. 277, Act I: O diese Sonne - Das Wild in Fluren und Triften","registered_at":"2026-06-09T18:11:54Z","spotify_id":"73Sa3lFZg4xEZXEHDsCRNo","type":"track"}

Der Freischütz, J. 277, Act I: Ein braver Mann
type: MusicRecording
duration: PT0M21S
duration ms: 21626
explicit: false
by artist: Carl Maria von Weber
by artist: Peter Hölzel
by artist: Hans Jörn Weber
by artist: Alfred Woronetzki
by artist: Monika Hildebrand
by artist: Gerlind Schulze
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01

Der Freischütz, J. 277, Act I: Walzer
type: MusicRecording
duration: PT1M13S
duration ms: 73333
explicit: false
by artist: Carl Maria von Weber
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330218
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T21:03:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x97738055bf8ba6f91278020d2140966997ec3d6629b72a362e584459483c6137
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5SVS0H679l0a8o0o90L5ZZ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5SVS0H679l0a8o0o90L5ZZ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x97738055bf8ba6f91278020d2140966997ec3d6629b72a362e584459483c6137","isrc":"DEF057330218","name":"Der Freischütz, J. 277, Act I: Walzer","registered_at":"2026-06-08T21:03:07Z","spotify_id":"5SVS0H679l0a8o0o90L5ZZ","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97738055bf8ba6f91278020d2140966997ec3d6629b72a362e584459483c6137. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5SVS0H679l0a8o0o90L5ZZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5SVS0H679l0a8o0o90L5ZZ.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0x97738055bf8ba6f91278020d2140966997ec3d6629b72a362e584459483c6137","isrc":"DEF057330218","name":"Der Freischütz, J. 277, Act I: Walzer","registered_at":"2026-06-08T21:03:07Z","spotify_id":"5SVS0H679l0a8o0o90L5ZZ","type":"track"}

Der Freischütz, J. 277, Act I: Nein, länger trag' ich nicht die Qualen - Durch die Wälder, durch die Auen
type: MusicRecording
duration: PT6M37S
duration ms: 397773
explicit: false
by artist: Carl Maria von Weber
by artist: Peter Schreier
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330204
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T04:10:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xabb52ca68c3ee85f98bcd815e21215d0e687f6d08bfdb5b3be0456a294fb8f9b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3SjQOFUTCnyGndmCUgb3wt.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3SjQOFUTCnyGndmCUgb3wt
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xabb52ca68c3ee85f98bcd815e21215d0e687f6d08bfdb5b3be0456a294fb8f9b","isrc":"DEF057330204","name":"Der Freischütz, J. 277, Act I: Nein, länger trag' ich nicht die Qualen - Durch die Wälder, durch die Auen","registered_at":"2026-06-22T04:10:31Z","spotify_id":"3SjQOFUTCnyGndmCUgb3wt","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb52ca68c3ee85f98bcd815e21215d0e687f6d08bfdb5b3be0456a294fb8f9b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3SjQOFUTCnyGndmCUgb3wt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3SjQOFUTCnyGndmCUgb3wt.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0xabb52ca68c3ee85f98bcd815e21215d0e687f6d08bfdb5b3be0456a294fb8f9b","isrc":"DEF057330204","name":"Der Freischütz, J. 277, Act I: Nein, länger trag' ich nicht die Qualen - Durch die Wälder, durch die Auen","registered_at":"2026-06-22T04:10:31Z","spotify_id":"3SjQOFUTCnyGndmCUgb3wt","type":"track"}

Der Freischütz, J. 277, Act I: Kamerad!
type: MusicRecording
duration: PT0M51S
duration ms: 51826
explicit: false
by artist: Carl Maria von Weber
by artist: Gerhard Paul
by artist: Hans Jörn Weber
by artist: Gerlind Schulze
by artist: Alfred Woronetzki
by artist: Kurt W. Franke
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330222

Der Freischütz, J. 277, Act I: Hier im irdschen Jammertal
type: MusicRecording
duration: PT1M59S
duration ms: 119973
explicit: false
by artist: Carl Maria von Weber
by artist: Theo Adam
by artist: Gerhard Paul
by artist: Hans Jörn Weber
by artist: Gerlind Schulze
by artist: Alfred Woronetzki
by artist: Kurt W. Franke
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330205
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T07:59:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa46161afaa2c9e8e16c076c75c7ec84f248ee9eddfda00aa90635da4d5002bf2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0HMd3zmwVQbUkHlm44PA1D.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0HMd3zmwVQbUkHlm44PA1D
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa46161afaa2c9e8e16c076c75c7ec84f248ee9eddfda00aa90635da4d5002bf2","isrc":"DEF057330205","name":"Der Freischütz, J. 277, Act I: Hier im irdschen Jammertal","registered_at":"2026-06-20T07:59:08Z","spotify_id":"0HMd3zmwVQbUkHlm44PA1D","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46161afaa2c9e8e16c076c75c7ec84f248ee9eddfda00aa90635da4d5002bf2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0HMd3zmwVQbUkHlm44PA1D.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0HMd3zmwVQbUkHlm44PA1D.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0xa46161afaa2c9e8e16c076c75c7ec84f248ee9eddfda00aa90635da4d5002bf2","isrc":"DEF057330205","name":"Der Freischütz, J. 277, Act I: Hier im irdschen Jammertal","registered_at":"2026-06-20T07:59:08Z","spotify_id":"0HMd3zmwVQbUkHlm44PA1D","type":"track"}

Der Freischütz, J. 277, Act I: Bruderherz!
type: MusicRecording
duration: PT2M6S
duration ms: 126866
explicit: false
by artist: Carl Maria von Weber
by artist: Gerhard Paul
by artist: Hans Jörn Weber
by artist: Gerlind Schulze
by artist: Alfred Woronetzki
by artist: Kurt W. Franke
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330223
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T03:58:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x321746d081e2218fe1aaffb337db993bfbe41b7da62dcdb1cf9938b7ab988deb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6tkwjWbeuqCwFeQDQAUUh9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6tkwjWbeuqCwFeQDQAUUh9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x321746d081e2218fe1aaffb337db993bfbe41b7da62dcdb1cf9938b7ab988deb","isrc":"DEF057330223","name":"Der Freischütz, J. 277, Act I: Bruderherz!","registered_at":"2026-06-26T03:58:14Z","spotify_id":"6tkwjWbeuqCwFeQDQAUUh9","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321746d081e2218fe1aaffb337db993bfbe41b7da62dcdb1cf9938b7ab988deb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6tkwjWbeuqCwFeQDQAUUh9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6tkwjWbeuqCwFeQDQAUUh9.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x321746d081e2218fe1aaffb337db993bfbe41b7da62dcdb1cf9938b7ab988deb","isrc":"DEF057330223","name":"Der Freischütz, J. 277, Act I: Bruderherz!","registered_at":"2026-06-26T03:58:14Z","spotify_id":"6tkwjWbeuqCwFeQDQAUUh9","type":"track"}

Der Freischütz, J. 277, Act I: Schweig, damit dich niemand warnt!
type: MusicRecording
duration: PT3M16S
duration ms: 196600
explicit: false
by artist: Carl Maria von Weber
by artist: Theo Adam
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330206
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T23:24:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4d682784aa1a79a7990dc4471f04fd037580d6e402db575b6d10cbf0fb8a015a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0Ylk6l3duDW1wFsJRKipmj.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0Ylk6l3duDW1wFsJRKipmj
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4d682784aa1a79a7990dc4471f04fd037580d6e402db575b6d10cbf0fb8a015a","isrc":"DEF057330206","name":"Der Freischütz, J. 277, Act I: Schweig, damit dich niemand warnt!","registered_at":"2026-06-25T23:24:05Z","spotify_id":"0Ylk6l3duDW1wFsJRKipmj","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d682784aa1a79a7990dc4471f04fd037580d6e402db575b6d10cbf0fb8a015a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Ylk6l3duDW1wFsJRKipmj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0Ylk6l3duDW1wFsJRKipmj.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x4d682784aa1a79a7990dc4471f04fd037580d6e402db575b6d10cbf0fb8a015a","isrc":"DEF057330206","name":"Der Freischütz, J. 277, Act I: Schweig, damit dich niemand warnt!","registered_at":"2026-06-25T23:24:05Z","spotify_id":"0Ylk6l3duDW1wFsJRKipmj","type":"track"}

Der Freischütz, J. 277, Act II: Schelm! Halt fest!
type: MusicRecording
duration: PT4M48S
duration ms: 288733
explicit: false
by artist: Carl Maria von Weber
by artist: Edith Mathis
by artist: Gundula Janowitz
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330207
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T04:08:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x70dddf5153c8205d16acb12ab7096c712b10e6502c66c9ace422f0f1d5b31b33
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3yaC6uqg4f6CYuFwB8qrkP.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3yaC6uqg4f6CYuFwB8qrkP
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x70dddf5153c8205d16acb12ab7096c712b10e6502c66c9ace422f0f1d5b31b33","isrc":"DEF057330207","name":"Der Freischütz, J. 277, Act II: Schelm! Halt fest!","registered_at":"2026-06-22T04:08:33Z","spotify_id":"3yaC6uqg4f6CYuFwB8qrkP","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70dddf5153c8205d16acb12ab7096c712b10e6502c66c9ace422f0f1d5b31b33. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3yaC6uqg4f6CYuFwB8qrkP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3yaC6uqg4f6CYuFwB8qrkP.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x70dddf5153c8205d16acb12ab7096c712b10e6502c66c9ace422f0f1d5b31b33","isrc":"DEF057330207","name":"Der Freischütz, J. 277, Act II: Schelm! Halt fest!","registered_at":"2026-06-22T04:08:33Z","spotify_id":"3yaC6uqg4f6CYuFwB8qrkP","type":"track"}

Der Freischütz, J. 277, Act II: So! Da oben mag ich den Herrn Urältervater
type: MusicRecording
duration: PT0M30S
duration ms: 30000
explicit: false
by artist: Carl Maria von Weber
by artist: Ingrid Hille
by artist: Regina Jeske
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330224

Der Freischütz, J. 277, Act II: Kommt ein schlanker Bursch gegangen
type: MusicRecording
duration: PT3M45S
duration ms: 225266
explicit: false
by artist: Carl Maria von Weber
by artist: Edith Mathis
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330208
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T08:01:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x66aec29ca5f6c9300ad1814bc924ba30d227ff9b239639ce9e06b330555922b6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4gp21jIH4hgyvkRHzyQRKP.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4gp21jIH4hgyvkRHzyQRKP
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x66aec29ca5f6c9300ad1814bc924ba30d227ff9b239639ce9e06b330555922b6","isrc":"DEF057330208","name":"Der Freischütz, J. 277, Act II: Kommt ein schlanker Bursch gegangen","registered_at":"2026-06-20T08:01:47Z","spotify_id":"4gp21jIH4hgyvkRHzyQRKP","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66aec29ca5f6c9300ad1814bc924ba30d227ff9b239639ce9e06b330555922b6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4gp21jIH4hgyvkRHzyQRKP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4gp21jIH4hgyvkRHzyQRKP.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x66aec29ca5f6c9300ad1814bc924ba30d227ff9b239639ce9e06b330555922b6","isrc":"DEF057330208","name":"Der Freischütz, J. 277, Act II: Kommt ein schlanker Bursch gegangen","registered_at":"2026-06-20T08:01:47Z","spotify_id":"4gp21jIH4hgyvkRHzyQRKP","type":"track"}

Der Freischütz, J. 277, Act II: Und der Bursch nicht minder schön
type: MusicRecording
duration: PT0M50S
duration ms: 50000
explicit: false
by artist: Carl Maria von Weber
by artist: Ingrid Hille
by artist: Regina Jeske
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330225

Der Freischütz, J. 277, Act II: Wie nahte mir der Schlummer - Leise, leise, fromme Weise!
type: MusicRecording
duration: PT8M19S
duration ms: 499733
explicit: false
by artist: Carl Maria von Weber
by artist: Gundula Janowitz
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330209
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T05:06:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2f15ef1e490e781689e8ca0c77d81dc685358b9e29d4fdd8fbda049837f584c2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7ForvoM2tuLVCDN1b6sdh0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7ForvoM2tuLVCDN1b6sdh0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2f15ef1e490e781689e8ca0c77d81dc685358b9e29d4fdd8fbda049837f584c2","isrc":"DEF057330209","name":"Der Freischütz, J. 277, Act II: Wie nahte mir der Schlummer - Leise, leise, fromme Weise!","registered_at":"2026-06-21T05:06:25Z","spotify_id":"7ForvoM2tuLVCDN1b6sdh0","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f15ef1e490e781689e8ca0c77d81dc685358b9e29d4fdd8fbda049837f584c2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7ForvoM2tuLVCDN1b6sdh0.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7ForvoM2tuLVCDN1b6sdh0.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x2f15ef1e490e781689e8ca0c77d81dc685358b9e29d4fdd8fbda049837f584c2","isrc":"DEF057330209","name":"Der Freischütz, J. 277, Act II: Wie nahte mir der Schlummer - Leise, leise, fromme Weise!","registered_at":"2026-06-21T05:06:25Z","spotify_id":"7ForvoM2tuLVCDN1b6sdh0","type":"track"}

Der Freischütz, J. 277, Act II: Meine Agathe!
type: MusicRecording
duration: PT1M23S
duration ms: 83133
explicit: false
by artist: Carl Maria von Weber
by artist: Regina Jeske
by artist: Hans Jörn Weber
by artist: Ingrid Hille
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330226

Der Freischütz, J. 277, Act II: Wie? Was? Entsetzen!
type: MusicRecording
duration: PT6M44S
duration ms: 404266
explicit: false
by artist: Carl Maria von Weber
by artist: Gundula Janowitz
by artist: Edith Mathis
by artist: Peter Schreier
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330210
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T20:10:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7f97843ff7ab843b2b571742748a746ad565d97ecf8ed57f0044c2b163d6070d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5qBHPquTQyzhl0IzVTmoV4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5qBHPquTQyzhl0IzVTmoV4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7f97843ff7ab843b2b571742748a746ad565d97ecf8ed57f0044c2b163d6070d","isrc":"DEF057330210","name":"Der Freischütz, J. 277, Act II: Wie? Was? Entsetzen!","registered_at":"2026-06-22T20:10:20Z","spotify_id":"5qBHPquTQyzhl0IzVTmoV4","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f97843ff7ab843b2b571742748a746ad565d97ecf8ed57f0044c2b163d6070d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5qBHPquTQyzhl0IzVTmoV4.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5qBHPquTQyzhl0IzVTmoV4.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x7f97843ff7ab843b2b571742748a746ad565d97ecf8ed57f0044c2b163d6070d","isrc":"DEF057330210","name":"Der Freischütz, J. 277, Act II: Wie? Was? Entsetzen!","registered_at":"2026-06-22T20:10:20Z","spotify_id":"5qBHPquTQyzhl0IzVTmoV4","type":"track"}

Der Freischütz, J. 277, Act II: Milch des Mondes fiel aufs Kraut - Samiel! Samiel! Erschein! - Ha! Furchtbar gähnt der düstre Abgrund
type: MusicRecording
duration: PT16M34S
duration ms: 994986
explicit: false
by artist: Carl Maria von Weber
by artist: Gerhard Paul
by artist: Hans Jörn Weber
by artist: Peter Schreier
by artist: Theo Adam
by artist: MDR Leipzig Radio Chorus
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330211
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T05:01:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7f0bc602e3a5a0236a090f8598f195b13c9b15ad9fb7e508fe967eed2f40e350
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/54RwDlVOAbnM653gQHpaSN.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/54RwDlVOAbnM653gQHpaSN
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7f0bc602e3a5a0236a090f8598f195b13c9b15ad9fb7e508fe967eed2f40e350","isrc":"DEF057330211","name":"Der Freischütz, J. 277, Act II: Milch des Mondes fiel aufs Kraut - Samiel! Samiel! Erschein! - Ha! Furchtbar gähnt der düstre Abgrund","registered_at":"2026-06-21T05:01:41Z","spotify_id":"54RwDlVOAbnM653gQHpaSN","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0bc602e3a5a0236a090f8598f195b13c9b15ad9fb7e508fe967eed2f40e350. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/54RwDlVOAbnM653gQHpaSN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/54RwDlVOAbnM653gQHpaSN.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x7f0bc602e3a5a0236a090f8598f195b13c9b15ad9fb7e508fe967eed2f40e350","isrc":"DEF057330211","name":"Der Freischütz, J. 277, Act II: Milch des Mondes fiel aufs Kraut - Samiel! Samiel! Erschein! - Ha! Furchtbar gähnt der düstre Abgrund","registered_at":"2026-06-21T05:01:41Z","spotify_id":"54RwDlVOAbnM653gQHpaSN","type":"track"}

Der Freischütz, J. 277, Act III: Entr'acte
type: MusicRecording
duration: PT1M45S
duration ms: 105560
explicit: false
by artist: Carl Maria von Weber
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330212
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T09:33:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd96e65753cc7d82ab9de29b7a2ca29a2816ad7c8232500b071da02a226de9ea7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0wo7XMRTarR2KB0x4m1nYL.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0wo7XMRTarR2KB0x4m1nYL
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd96e65753cc7d82ab9de29b7a2ca29a2816ad7c8232500b071da02a226de9ea7","isrc":"DEF057330212","name":"Der Freischütz, J. 277, Act III: Entr'acte","registered_at":"2026-06-23T09:33:56Z","spotify_id":"0wo7XMRTarR2KB0x4m1nYL","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96e65753cc7d82ab9de29b7a2ca29a2816ad7c8232500b071da02a226de9ea7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0wo7XMRTarR2KB0x4m1nYL.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0wo7XMRTarR2KB0x4m1nYL.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xd96e65753cc7d82ab9de29b7a2ca29a2816ad7c8232500b071da02a226de9ea7","isrc":"DEF057330212","name":"Der Freischütz, J. 277, Act III: Entr'acte","registered_at":"2026-06-23T09:33:56Z","spotify_id":"0wo7XMRTarR2KB0x4m1nYL","type":"track"}

Der Freischütz, J. 277, Act III: Ein herrliches Jagdwetter!
type: MusicRecording
duration: PT2M9S
duration ms: 129440
explicit: false
by artist: Carl Maria von Weber
by artist: Friedrich Wilhelm Junge
by artist: August Hütten
by artist: Achim Schmidtchen
by artist: Hans Jörn Weber
by artist: Gerhard Paul
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330227

Der Freischütz, J. 277, Act III: Und ob die Wolke sie verhülle
type: MusicRecording
duration: PT5M57S
duration ms: 357466
explicit: false
by artist: Carl Maria von Weber
by artist: Gundula Janowitz
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330213
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T12:58:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x32b18ad1ef8e2078c1fcb8cad1454bd98f5efb673e316a9df00a0e6c7dd4fa87
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953520
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4M5iw5VRNTpoC9p6KLb8xN.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4M5iw5VRNTpoC9p6KLb8xN
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x32b18ad1ef8e2078c1fcb8cad1454bd98f5efb673e316a9df00a0e6c7dd4fa87","isrc":"DEF057330213","name":"Der Freischütz, J. 277, Act III: Und ob die Wolke sie verhülle","registered_at":"2026-06-08T12:58:47Z","spotify_id":"4M5iw5VRNTpoC9p6KLb8xN","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b18ad1ef8e2078c1fcb8cad1454bd98f5efb673e316a9df00a0e6c7dd4fa87. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4M5iw5VRNTpoC9p6KLb8xN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4M5iw5VRNTpoC9p6KLb8xN.
  date published: 2026-06-13T13:32:09Z
  text: {"copyright_id":"0x32b18ad1ef8e2078c1fcb8cad1454bd98f5efb673e316a9df00a0e6c7dd4fa87","isrc":"DEF057330213","name":"Der Freischütz, J. 277, Act III: Und ob die Wolke sie verhülle","registered_at":"2026-06-08T12:58:47Z","spotify_id":"4M5iw5VRNTpoC9p6KLb8xN","type":"track"}

Der Freischütz, J. 277, Act III: Du hast dich dazugehalten!
type: MusicRecording
duration: PT1M19S
duration ms: 79293
explicit: false
by artist: Carl Maria von Weber
by artist: Ingrid Hille
by artist: Regina Jeske
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330228

Der Freischütz, J. 277, Act III: Einst träumte meiner sel'gen Base - Trübe Augen, Liebchen, taugen
type: MusicRecording
duration: PT6M10S
duration ms: 370000
explicit: false
by artist: Carl Maria von Weber
by artist: Edith Mathis
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Weber: Der Freischütz, J. 277
  type: MusicAlbum
  date published: 1973-01-01
isrc code: DEF057330214
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T06:30:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x38d1bd3cdc0941d63297553f5305200d9e93b53b5a4a011d310fae7aa2cf183a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0UviAbP0RWlVuX4d4obQRi.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0UviAbP0RWlVuX4d4obQRi
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x38d1bd3cdc0941d63297553f5305200d9e93b53b5a4a011d310fae7aa2cf183a","isrc":"DEF057330214","name":"Der Freischütz, J. 277, Act III: Einst träumte meiner sel'gen Base - Trübe Augen, Liebchen, taugen","registered_at":"2026-06-27T06:30:14Z","spotify_id":"0UviAbP0RWlVuX4d4obQRi","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
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Der Freischütz, J. 277, Act III: Nun muß ich aber den Kranz holen
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Der Freischütz, J. 277, Act III: Wir winden dir den Jungfernkranz
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subject of: OpenTimestamps Proof of Existence
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Der Freischütz, J. 277, Act III: Was gleicht wohl auf Erden dem Jägervergnügen?
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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Der Freischütz, J. 277, Act III: Genug der Freuden des Mahls
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Der Freischütz, J. 277, Act III: Schaut, o schaut! Er traf die eigne Braut!
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subject of: OpenTimestamps Proof of Existence
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Der Freischütz, J. 277, Act III: Wer legt auf ihn so strengen Bann?
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subject of: OpenTimestamps Proof of Existence
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Kleiber - Great Recordings
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track: La traviata, Act I: Dell'invito trascorsa è già l'ora
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  subject of: OpenTimestamps Proof of Existence
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track: La traviata, Act I: Un dì felice, eterea
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track: La traviata, Act I: E strano! - Ah, fors'è lui
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track: Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
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track: Symphony No. 5 in C Minor, Op. 67: II. Andante con moto
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    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cf03a03e4e50b7240c71b7ead1fe9fbee262d66fda01d535643c9806298387. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2LaK0ieZp21u2oQts3t9An.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2LaK0ieZp21u2oQts3t9An.
    date published: 2026-06-13T15:41:10Z
    text: {"copyright_id":"0x41cf03a03e4e50b7240c71b7ead1fe9fbee262d66fda01d535643c9806298387","isrc":"DEF058134908","name":"Tristan und Isolde, Act I: Westwärts schweift der Blick","registered_at":"2026-06-09T06:51:48Z","spotify_id":"2LaK0ieZp21u2oQts3t9An","type":"track"}
track: Tristan und Isolde, Act I: Frisch weht der Wind der Heimat zu
  type: MusicRecording
  duration: PT9M24S
  duration ms: 564800
  explicit: false
  by artist: Richard Wagner
  by artist: Margaret Price
  by artist: Brigitte Fassbaender
  by artist: Eberhard Büchner
  by artist: René Kollo
  by artist: Dietrich Fischer-Dieskau
  by artist: Staatskapelle Dresden
  by artist: Carlos Kleiber
  in album: Wagner: Tristan und Isolde
    type: MusicAlbum
    date published: 1982-01-01
  isrc code: DEF058134909
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-11T04:11:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd1eae3b52baac2e36964fcac9984a84392d8a9cfbd9ee354fab004e6478f7eaa
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/953520
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/0qfgRX6Q2FXo3kgUiiOgO0.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0qfgRX6Q2FXo3kgUiiOgO0
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xd1eae3b52baac2e36964fcac9984a84392d8a9cfbd9ee354fab004e6478f7eaa","isrc":"DEF058134909","name":"Tristan und Isolde, Act I: Frisch weht der Wind der Heimat zu","registered_at":"2026-06-11T04:11:20Z","spotify_id":"0qfgRX6Q2FXo3kgUiiOgO0","type":"track"}
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1eae3b52baac2e36964fcac9984a84392d8a9cfbd9ee354fab004e6478f7eaa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0qfgRX6Q2FXo3kgUiiOgO0.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0qfgRX6Q2FXo3kgUiiOgO0.
    date published: 2026-06-13T13:32:09Z
    text: {"copyright_id":"0xd1eae3b52baac2e36964fcac9984a84392d8a9cfbd9ee354fab004e6478f7eaa","isrc":"DEF058134909","name":"Tristan und Isolde, Act I: Frisch weht der Wind der Heimat zu","registered_at":"2026-06-11T04:11:20Z","spotify_id":"0qfgRX6Q2FXo3kgUiiOgO0","type":"track"}
track: Tristan und Isolde, Act I: Weh, ach wehe! Dies zu dulden
  type: MusicRecording
  duration: PT17M51S
  duration ms: 1071506
  explicit: false
  by artist: Richard Wagner
  by artist: Margaret Price
  by artist: Brigitte Fassbaender
  by artist: Staatskapelle Dresden
  by artist: Carlos Kleiber
  in album: Wagner: Tristan und Isolde
    type: MusicAlbum
    date published: 1982-01-01
  isrc code: DEF058134910
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-17T22:19:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc5dcbb348bbdf99464fb6456ad736a8f78178de06e0d216541337e8d588f34f4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956302
  additional property: OTSRecordURL
    type: PropertyValue
    value: https://artists.proofprofile.net/proofs/track/5dNYY6PZ7xrA5vnt7etLcL.json
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5dNYY6PZ7xrA5vnt7etLcL
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSCanonicalRecord
    type: PropertyValue
    value: {"copyright_id":"0xc5dcbb348bbdf99464fb6456ad736a8f78178de06e0d216541337e8d588f34f4","isrc":"DEF058134910","name":"Tristan und Isolde, Act I: Weh, ach wehe! Dies zu dulden","registered_at":"2026-06-17T22:19:37Z","spotify_id":"5dNYY6PZ7xrA5vnt7etLcL","type":"track"}
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: Tristan und Isolde, Act I: Auf! Auf! Ihr Frauen!
track: Tristan und Isolde, Act I: Herr Tristan trete nah! - Begehrt, Herrin, was Ihr wünscht
track: Tristan und Isolde, Act I: Tristan! - Isolde! Treuloser Holder!
track: Tristan und Isolde, Act II: Prelude
track: Tristan und Isolde, Act II: Hörst du Sie noch?
track: Tristan und Isolde, Act II: Isolde! Geliebte! - Tristan! Geliebter!
track: Tristan und Isolde, Act II: O sink hernieder, Nacht der Liebe
track: Tristan und Isolde, Act II: Einsam wachend in der Nacht
track: Tristan und Isolde, Act II: Lausch, Geliebter!
track: Tristan und Isolde, Act II: Doch unsre Liebe, heißt sie nicht Tristan und Isolde?
track: Tristan und Isolde, Act II: So starben wir
track: Tristan und Isolde, Act II: Rette dich, Tristan!
track: Tristan und Isolde, Act II: Tatest du's wirklich?
track: Tristan und Isolde, Act II: O König, das kann ich dir nicht sagen
track: Tristan und Isolde, Act III: Prelude
track: Tristan und Isolde, Act III: Man hört einen Hirtenreigen
track: Tristan und Isolde, Act III: Kurwenal! He!
track: Tristan und Isolde, Act III: Hei nun! Wie du kamst?
track: Tristan und Isolde, Act III: Noch losch das Licht nicht aus
track: Tristan und Isolde, Act III: Noch ist kein Schiff zu sehn!
track: Tristan und Isolde, Act III: Bist du nun tot? O Wonne! Freude!
track: Tristan und Isolde, Act III: O diese Sonne!
track: Tristan und Isolde, Act III: Ich bin's, ich bin's
track: Tristan und Isolde, Act III: Kurwenal! Hör!
track: Tristan und Isolde, Act III: Mild und leise wie er lächelt

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5dcbb348bbdf99464fb6456ad736a8f78178de06e0d216541337e8d588f34f4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5dNYY6PZ7xrA5vnt7etLcL.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5dNYY6PZ7xrA5vnt7etLcL.
date published: 2026-07-02T03:30:09Z
text: {"copyright_id":"0xc5dcbb348bbdf99464fb6456ad736a8f78178de06e0d216541337e8d588f34f4","isrc":"DEF058134910","name":"Tristan und Isolde, Act I: Weh, ach wehe! Dies zu dulden","registered_at":"2026-06-17T22:19:37Z","spotify_id":"5dNYY6PZ7xrA5vnt7etLcL","type":"track"}

Tristan und Isolde, Act I: Auf! Auf! Ihr Frauen!
type: MusicRecording
duration: PT7M23S
duration ms: 443786
explicit: false
by artist: Richard Wagner
by artist: Margaret Price
by artist: Brigitte Fassbaender
by artist: Dietrich Fischer-Dieskau
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134911
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T09:01:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x54b8b095795b3809681ff4efe246053fa628b6dff820d47f3f90d9d0aac400e8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6TRE0dHY6lRqIiq3r2lpM7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6TRE0dHY6lRqIiq3r2lpM7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x54b8b095795b3809681ff4efe246053fa628b6dff820d47f3f90d9d0aac400e8","isrc":"DEF058134911","name":"Tristan und Isolde, Act I: Auf! Auf! Ihr Frauen!","registered_at":"2026-06-19T09:01:45Z","spotify_id":"6TRE0dHY6lRqIiq3r2lpM7","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b8b095795b3809681ff4efe246053fa628b6dff820d47f3f90d9d0aac400e8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6TRE0dHY6lRqIiq3r2lpM7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6TRE0dHY6lRqIiq3r2lpM7.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x54b8b095795b3809681ff4efe246053fa628b6dff820d47f3f90d9d0aac400e8","isrc":"DEF058134911","name":"Tristan und Isolde, Act I: Auf! Auf! Ihr Frauen!","registered_at":"2026-06-19T09:01:45Z","spotify_id":"6TRE0dHY6lRqIiq3r2lpM7","type":"track"}

Tristan und Isolde, Act I: Herr Tristan trete nah! - Begehrt, Herrin, was Ihr wünscht
type: MusicRecording
duration: PT20M2S
duration ms: 1202573
explicit: false
by artist: Richard Wagner
by artist: Margaret Price
by artist: René Kollo
by artist: Dietrich Fischer-Dieskau
by artist: MDR Leipzig Radio Chorus
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134903
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T03:55:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x856d6d2b48329b095c1ae80a7c10d167c101bf449528cbacb661e5f44cc07c33
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3IUNQxgE4aUmEEbVEJw3jj.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3IUNQxgE4aUmEEbVEJw3jj
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x856d6d2b48329b095c1ae80a7c10d167c101bf449528cbacb661e5f44cc07c33","isrc":"DEF058134903","name":"Tristan und Isolde, Act I: Herr Tristan trete nah! - Begehrt, Herrin, was Ihr wünscht","registered_at":"2026-06-20T03:55:08Z","spotify_id":"3IUNQxgE4aUmEEbVEJw3jj","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856d6d2b48329b095c1ae80a7c10d167c101bf449528cbacb661e5f44cc07c33. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3IUNQxgE4aUmEEbVEJw3jj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3IUNQxgE4aUmEEbVEJw3jj.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x856d6d2b48329b095c1ae80a7c10d167c101bf449528cbacb661e5f44cc07c33","isrc":"DEF058134903","name":"Tristan und Isolde, Act I: Herr Tristan trete nah! - Begehrt, Herrin, was Ihr wünscht","registered_at":"2026-06-20T03:55:08Z","spotify_id":"3IUNQxgE4aUmEEbVEJw3jj","type":"track"}

Tristan und Isolde, Act I: Tristan! - Isolde! Treuloser Holder!
type: MusicRecording
duration: PT6M54S
duration ms: 414266
explicit: false
by artist: Richard Wagner
by artist: Margaret Price
by artist: Brigitte Fassbaender
by artist: René Kollo
by artist: Dietrich Fischer-Dieskau
by artist: MDR Leipzig Radio Chorus
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134912
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T14:05:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd85c140dafcc8e87699f3f98fffb83f62c3061290285306f557ea625141e2b94
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7odGf3N1o5L4GJ3QCH9gAk.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7odGf3N1o5L4GJ3QCH9gAk
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd85c140dafcc8e87699f3f98fffb83f62c3061290285306f557ea625141e2b94","isrc":"DEF058134912","name":"Tristan und Isolde, Act I: Tristan! - Isolde! Treuloser Holder!","registered_at":"2026-06-18T14:05:46Z","spotify_id":"7odGf3N1o5L4GJ3QCH9gAk","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85c140dafcc8e87699f3f98fffb83f62c3061290285306f557ea625141e2b94. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7odGf3N1o5L4GJ3QCH9gAk.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7odGf3N1o5L4GJ3QCH9gAk.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xd85c140dafcc8e87699f3f98fffb83f62c3061290285306f557ea625141e2b94","isrc":"DEF058134912","name":"Tristan und Isolde, Act I: Tristan! - Isolde! Treuloser Holder!","registered_at":"2026-06-18T14:05:46Z","spotify_id":"7odGf3N1o5L4GJ3QCH9gAk","type":"track"}

Tristan und Isolde, Act II: Prelude
type: MusicRecording
duration: PT2M1S
duration ms: 121440
explicit: false
by artist: Richard Wagner
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134913
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T03:54:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd64347b39e489e054532efb77bb80dddc339a6603eb8ce5cc6d61eb52debae38
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2zYLZdlUoo2K3xQuILlJqw.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2zYLZdlUoo2K3xQuILlJqw
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd64347b39e489e054532efb77bb80dddc339a6603eb8ce5cc6d61eb52debae38","isrc":"DEF058134913","name":"Tristan und Isolde, Act II: Prelude","registered_at":"2026-06-20T03:54:50Z","spotify_id":"2zYLZdlUoo2K3xQuILlJqw","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64347b39e489e054532efb77bb80dddc339a6603eb8ce5cc6d61eb52debae38. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2zYLZdlUoo2K3xQuILlJqw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2zYLZdlUoo2K3xQuILlJqw.
  date published: 2026-07-02T03:30:09Z
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Tristan und Isolde, Act II: Hörst du Sie noch?
type: MusicRecording
duration: PT14M18S
duration ms: 858666
explicit: false
by artist: Richard Wagner
by artist: Margaret Price
by artist: Brigitte Fassbaender
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134914
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T04:00:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf03dc44e95babb579fc840b368ab722144efe8f3c05b7a6af615d1217f8b741b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4OQO4IX8SdSHGaNZeZewBB.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4OQO4IX8SdSHGaNZeZewBB
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf03dc44e95babb579fc840b368ab722144efe8f3c05b7a6af615d1217f8b741b","isrc":"DEF058134914","name":"Tristan und Isolde, Act II: Hörst du Sie noch?","registered_at":"2026-06-20T04:00:12Z","spotify_id":"4OQO4IX8SdSHGaNZeZewBB","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03dc44e95babb579fc840b368ab722144efe8f3c05b7a6af615d1217f8b741b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4OQO4IX8SdSHGaNZeZewBB.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4OQO4IX8SdSHGaNZeZewBB.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0xf03dc44e95babb579fc840b368ab722144efe8f3c05b7a6af615d1217f8b741b","isrc":"DEF058134914","name":"Tristan und Isolde, Act II: Hörst du Sie noch?","registered_at":"2026-06-20T04:00:12Z","spotify_id":"4OQO4IX8SdSHGaNZeZewBB","type":"track"}

Tristan und Isolde, Act II: Isolde! Geliebte! - Tristan! Geliebter!
type: MusicRecording
duration: PT17M30S
duration ms: 1050333
explicit: false
by artist: Richard Wagner
by artist: Margaret Price
by artist: René Kollo
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134915
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T21:28:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2e0277069833db489b81dd0453b87e60e207f8809eaec77f2f36703cbdd9d031
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3Uum9JOAxOfENJrZzj3fSE.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3Uum9JOAxOfENJrZzj3fSE
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2e0277069833db489b81dd0453b87e60e207f8809eaec77f2f36703cbdd9d031","isrc":"DEF058134915","name":"Tristan und Isolde, Act II: Isolde! Geliebte! - Tristan! Geliebter!","registered_at":"2026-06-21T21:28:06Z","spotify_id":"3Uum9JOAxOfENJrZzj3fSE","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0277069833db489b81dd0453b87e60e207f8809eaec77f2f36703cbdd9d031. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3Uum9JOAxOfENJrZzj3fSE.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3Uum9JOAxOfENJrZzj3fSE.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x2e0277069833db489b81dd0453b87e60e207f8809eaec77f2f36703cbdd9d031","isrc":"DEF058134915","name":"Tristan und Isolde, Act II: Isolde! Geliebte! - Tristan! Geliebter!","registered_at":"2026-06-21T21:28:06Z","spotify_id":"3Uum9JOAxOfENJrZzj3fSE","type":"track"}

Tristan und Isolde, Act II: O sink hernieder, Nacht der Liebe
type: MusicRecording
duration: PT5M18S
duration ms: 318360
explicit: false
by artist: Richard Wagner
by artist: Margaret Price
by artist: René Kollo
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134904
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T19:19:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x20cb3cd270cf596073af1e7cd59fa58baeab9fd5b97955f10c21428188f9955e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2akXtNqIG4VyvCIBdtUqQ6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2akXtNqIG4VyvCIBdtUqQ6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x20cb3cd270cf596073af1e7cd59fa58baeab9fd5b97955f10c21428188f9955e","isrc":"DEF058134904","name":"Tristan und Isolde, Act II: O sink hernieder, Nacht der Liebe","registered_at":"2026-06-20T19:19:17Z","spotify_id":"2akXtNqIG4VyvCIBdtUqQ6","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20cb3cd270cf596073af1e7cd59fa58baeab9fd5b97955f10c21428188f9955e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2akXtNqIG4VyvCIBdtUqQ6.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2akXtNqIG4VyvCIBdtUqQ6.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x20cb3cd270cf596073af1e7cd59fa58baeab9fd5b97955f10c21428188f9955e","isrc":"DEF058134904","name":"Tristan und Isolde, Act II: O sink hernieder, Nacht der Liebe","registered_at":"2026-06-20T19:19:17Z","spotify_id":"2akXtNqIG4VyvCIBdtUqQ6","type":"track"}

Tristan und Isolde, Act II: Einsam wachend in der Nacht
type: MusicRecording
duration: PT2M46S
duration ms: 166933
explicit: false
by artist: Richard Wagner
by artist: Brigitte Fassbaender
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134916
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-17T22:19:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x840af68bbfdf3209578983bc4b83b17cadce692676a42841569a1fdac92c6819
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/67Hxp4rRKTLvRN8MEY1ICa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/67Hxp4rRKTLvRN8MEY1ICa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x840af68bbfdf3209578983bc4b83b17cadce692676a42841569a1fdac92c6819","isrc":"DEF058134916","name":"Tristan und Isolde, Act II: Einsam wachend in der Nacht","registered_at":"2026-06-17T22:19:44Z","spotify_id":"67Hxp4rRKTLvRN8MEY1ICa","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840af68bbfdf3209578983bc4b83b17cadce692676a42841569a1fdac92c6819. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/67Hxp4rRKTLvRN8MEY1ICa.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/67Hxp4rRKTLvRN8MEY1ICa.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x840af68bbfdf3209578983bc4b83b17cadce692676a42841569a1fdac92c6819","isrc":"DEF058134916","name":"Tristan und Isolde, Act II: Einsam wachend in der Nacht","registered_at":"2026-06-17T22:19:44Z","spotify_id":"67Hxp4rRKTLvRN8MEY1ICa","type":"track"}

Tristan und Isolde, Act II: Lausch, Geliebter!
type: MusicRecording
duration: PT4M49S
duration ms: 289026
explicit: false
by artist: Richard Wagner
by artist: Margaret Price
by artist: René Kollo
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134917
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T00:38:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x91a8fe169d3058799ebd540a45f578f4b22982a09c4f94ce8e0570624dccbcb0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2mYhsFdFnYn1QTaTdvGADM.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2mYhsFdFnYn1QTaTdvGADM
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
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  value: {"copyright_id":"0x91a8fe169d3058799ebd540a45f578f4b22982a09c4f94ce8e0570624dccbcb0","isrc":"DEF058134917","name":"Tristan und Isolde, Act II: Lausch, Geliebter!","registered_at":"2026-06-23T00:38:46Z","spotify_id":"2mYhsFdFnYn1QTaTdvGADM","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a8fe169d3058799ebd540a45f578f4b22982a09c4f94ce8e0570624dccbcb0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2mYhsFdFnYn1QTaTdvGADM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2mYhsFdFnYn1QTaTdvGADM.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x91a8fe169d3058799ebd540a45f578f4b22982a09c4f94ce8e0570624dccbcb0","isrc":"DEF058134917","name":"Tristan und Isolde, Act II: Lausch, Geliebter!","registered_at":"2026-06-23T00:38:46Z","spotify_id":"2mYhsFdFnYn1QTaTdvGADM","type":"track"}

Tristan und Isolde, Act II: Doch unsre Liebe, heißt sie nicht Tristan und Isolde?
type: MusicRecording
duration: PT2M32S
duration ms: 152613
explicit: false
by artist: Richard Wagner
by artist: Margaret Price
by artist: René Kollo
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134918
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T10:07:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x404c5c406cf105ed553fad53980f534e335ca537365d35ba62fbb122ce51f901
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2ZOkBPE7k802BNOLa26gwc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2ZOkBPE7k802BNOLa26gwc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404c5c406cf105ed553fad53980f534e335ca537365d35ba62fbb122ce51f901. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2ZOkBPE7k802BNOLa26gwc.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2ZOkBPE7k802BNOLa26gwc.
  date published: 2026-07-02T05:09:12Z
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Tristan und Isolde, Act II: So starben wir
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duration: PT8M6S
duration ms: 486173
explicit: false
by artist: Richard Wagner
by artist: Margaret Price
by artist: Brigitte Fassbaender
by artist: René Kollo
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134919
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T03:56:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa8eb5bd5a592a603955bc01cfd393817e90f36aa799b42723e4b50298369f2f6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2TjXdvPgohTSY7dugDhGBx.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2TjXdvPgohTSY7dugDhGBx
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
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Tristan und Isolde, Act II: Rette dich, Tristan!
type: MusicRecording
duration: PT1M26S
duration ms: 86173
explicit: false
by artist: Richard Wagner
by artist: Werner Götz
by artist: René Kollo
by artist: Dietrich Fischer-Dieskau
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134920
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T17:23:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfaccbe6e8cb4d73a696b18063ca477ba7af7217c67737efe3f83ac36b964e486
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0cEjU9ADo7eSZizScvFzu5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0cEjU9ADo7eSZizScvFzu5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfaccbe6e8cb4d73a696b18063ca477ba7af7217c67737efe3f83ac36b964e486","isrc":"DEF058134920","name":"Tristan und Isolde, Act II: Rette dich, Tristan!","registered_at":"2026-06-25T17:23:34Z","spotify_id":"0cEjU9ADo7eSZizScvFzu5","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaccbe6e8cb4d73a696b18063ca477ba7af7217c67737efe3f83ac36b964e486. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0cEjU9ADo7eSZizScvFzu5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0cEjU9ADo7eSZizScvFzu5.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0xfaccbe6e8cb4d73a696b18063ca477ba7af7217c67737efe3f83ac36b964e486","isrc":"DEF058134920","name":"Tristan und Isolde, Act II: Rette dich, Tristan!","registered_at":"2026-06-25T17:23:34Z","spotify_id":"0cEjU9ADo7eSZizScvFzu5","type":"track"}

Tristan und Isolde, Act II: Tatest du's wirklich?
type: MusicRecording
duration: PT12M14S
duration ms: 734826
explicit: false
by artist: Richard Wagner
by artist: René Kollo
by artist: Kurt Moll
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134921
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T10:08:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe55c2bf0f43a62440156db1a021ca15ed8ad7fb7dedc098b2954cc38adfb422d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5VdCX9LdESn45eJ821gkEQ.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5VdCX9LdESn45eJ821gkEQ
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe55c2bf0f43a62440156db1a021ca15ed8ad7fb7dedc098b2954cc38adfb422d","isrc":"DEF058134921","name":"Tristan und Isolde, Act II: Tatest du's wirklich?","registered_at":"2026-06-24T10:08:33Z","spotify_id":"5VdCX9LdESn45eJ821gkEQ","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55c2bf0f43a62440156db1a021ca15ed8ad7fb7dedc098b2954cc38adfb422d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5VdCX9LdESn45eJ821gkEQ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5VdCX9LdESn45eJ821gkEQ.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0xe55c2bf0f43a62440156db1a021ca15ed8ad7fb7dedc098b2954cc38adfb422d","isrc":"DEF058134921","name":"Tristan und Isolde, Act II: Tatest du's wirklich?","registered_at":"2026-06-24T10:08:33Z","spotify_id":"5VdCX9LdESn45eJ821gkEQ","type":"track"}

Tristan und Isolde, Act II: O König, das kann ich dir nicht sagen
type: MusicRecording
duration: PT8M55S
duration ms: 535773
explicit: false
by artist: Richard Wagner
by artist: Margaret Price
by artist: Werner Götz
by artist: René Kollo
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134922
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T10:08:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9c4a4deabe7f89ba4df4c2930763f545d5e5ed6936ca7bb4ad8c37198d49bc78
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/68kfF7i1WXZMsKkYa5m9in.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/68kfF7i1WXZMsKkYa5m9in
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4a4deabe7f89ba4df4c2930763f545d5e5ed6936ca7bb4ad8c37198d49bc78. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/68kfF7i1WXZMsKkYa5m9in.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/68kfF7i1WXZMsKkYa5m9in.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x9c4a4deabe7f89ba4df4c2930763f545d5e5ed6936ca7bb4ad8c37198d49bc78","isrc":"DEF058134922","name":"Tristan und Isolde, Act II: O König, das kann ich dir nicht sagen","registered_at":"2026-06-24T10:08:25Z","spotify_id":"68kfF7i1WXZMsKkYa5m9in","type":"track"}

Tristan und Isolde, Act III: Prelude
type: MusicRecording
duration: PT4M32S
duration ms: 272320
explicit: false
by artist: Richard Wagner
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134905
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-17T22:19:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x496e2ffd023a72814401622641bddbb51322bb9de5061f1fee489b59058aab2f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956302
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/69LdfByY8mDADEl4qqcz8V.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/69LdfByY8mDADEl4qqcz8V
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496e2ffd023a72814401622641bddbb51322bb9de5061f1fee489b59058aab2f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/69LdfByY8mDADEl4qqcz8V.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/69LdfByY8mDADEl4qqcz8V.
  date published: 2026-07-02T03:30:09Z
  text: {"copyright_id":"0x496e2ffd023a72814401622641bddbb51322bb9de5061f1fee489b59058aab2f","isrc":"DEF058134905","name":"Tristan und Isolde, Act III: Prelude","registered_at":"2026-06-17T22:19:37Z","spotify_id":"69LdfByY8mDADEl4qqcz8V","type":"track"}

Tristan und Isolde, Act III: Man hört einen Hirtenreigen
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duration: PT2M58S
duration ms: 178560
explicit: false
by artist: Richard Wagner
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134923
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T21:29:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf24f46784fbbf59a6b698968d5e82509aa31292b648a4f70a020c4315b643a37
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5P67cOt71xOP8GH5LWcgkS.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5P67cOt71xOP8GH5LWcgkS
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf24f46784fbbf59a6b698968d5e82509aa31292b648a4f70a020c4315b643a37","isrc":"DEF058134923","name":"Tristan und Isolde, Act III: Man hört einen Hirtenreigen","registered_at":"2026-06-21T21:29:30Z","spotify_id":"5P67cOt71xOP8GH5LWcgkS","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24f46784fbbf59a6b698968d5e82509aa31292b648a4f70a020c4315b643a37. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5P67cOt71xOP8GH5LWcgkS.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5P67cOt71xOP8GH5LWcgkS.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0xf24f46784fbbf59a6b698968d5e82509aa31292b648a4f70a020c4315b643a37","isrc":"DEF058134923","name":"Tristan und Isolde, Act III: Man hört einen Hirtenreigen","registered_at":"2026-06-21T21:29:30Z","spotify_id":"5P67cOt71xOP8GH5LWcgkS","type":"track"}

Tristan und Isolde, Act III: Kurwenal! He!
type: MusicRecording
duration: PT8M34S
duration ms: 514413
explicit: false
by artist: Richard Wagner
by artist: Anton Dermota
by artist: René Kollo
by artist: Dietrich Fischer-Dieskau
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134924
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T17:24:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x464089df5743ea0b2f5dfa692e82ece7f1fc46465d6014325ccfc06c7e07ebf5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/0S3CUBjJcMmtVY40TDzovH.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0S3CUBjJcMmtVY40TDzovH
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x464089df5743ea0b2f5dfa692e82ece7f1fc46465d6014325ccfc06c7e07ebf5","isrc":"DEF058134924","name":"Tristan und Isolde, Act III: Kurwenal! He!","registered_at":"2026-06-25T17:24:59Z","spotify_id":"0S3CUBjJcMmtVY40TDzovH","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464089df5743ea0b2f5dfa692e82ece7f1fc46465d6014325ccfc06c7e07ebf5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0S3CUBjJcMmtVY40TDzovH.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0S3CUBjJcMmtVY40TDzovH.
  date published: 2026-07-02T05:09:12Z
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Tristan und Isolde, Act III: Hei nun! Wie du kamst?
type: MusicRecording
duration: PT9M28S
duration ms: 568506
explicit: false
by artist: Richard Wagner
by artist: Dietrich Fischer-Dieskau
by artist: René Kollo
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134925
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T17:23:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcda08540247f6e1a5ff93ff47441ec4bd4e6d1c7c4ed52e4cf292ee2264e3c17
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2dB7I77qn6X66ZGFdWY0e7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2dB7I77qn6X66ZGFdWY0e7
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
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Tristan und Isolde, Act III: Noch losch das Licht nicht aus
type: MusicRecording
duration: PT5M10S
duration ms: 310320
explicit: false
by artist: Richard Wagner
by artist: René Kollo
by artist: Dietrich Fischer-Dieskau
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134926
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T19:26:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1bf38985865611dc46df60270123f9feae5433f0c3f17e5aa40647ba3e418c1e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3ZFYnx4fHRuaGrynP83o9k.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3ZFYnx4fHRuaGrynP83o9k
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf38985865611dc46df60270123f9feae5433f0c3f17e5aa40647ba3e418c1e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3ZFYnx4fHRuaGrynP83o9k.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3ZFYnx4fHRuaGrynP83o9k.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x1bf38985865611dc46df60270123f9feae5433f0c3f17e5aa40647ba3e418c1e","isrc":"DEF058134926","name":"Tristan und Isolde, Act III: Noch losch das Licht nicht aus","registered_at":"2026-06-26T19:26:56Z","spotify_id":"3ZFYnx4fHRuaGrynP83o9k","type":"track"}

Tristan und Isolde, Act III: Noch ist kein Schiff zu sehn!
type: MusicRecording
duration: PT11M50S
duration ms: 710786
explicit: false
by artist: Richard Wagner
by artist: Dietrich Fischer-Dieskau
by artist: René Kollo
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134927
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4fW9icEYEy5pmt160fql4g.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4fW9icEYEy5pmt160fql4g
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff6df5c717bbe34cf448f15533174c64abca269bea0f0f1fdd489673f830841. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4fW9icEYEy5pmt160fql4g.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4fW9icEYEy5pmt160fql4g.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x6ff6df5c717bbe34cf448f15533174c64abca269bea0f0f1fdd489673f830841","isrc":"DEF058134927","name":"Tristan und Isolde, Act III: Noch ist kein Schiff zu sehn!","registered_at":"2026-06-26T19:25:05Z","spotify_id":"4fW9icEYEy5pmt160fql4g","type":"track"}

Tristan und Isolde, Act III: Bist du nun tot? O Wonne! Freude!
type: MusicRecording
duration: PT9M3S
duration ms: 543866
explicit: false
by artist: Richard Wagner
by artist: René Kollo
by artist: Dietrich Fischer-Dieskau
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134906
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T22:51:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4892cf12aea33b0d71a00ccca73a13be221403c143c1f430f89fb0b49e9c9135
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956349
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956349
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4aMKoNx0VXJblBmmJcdg5s.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4aMKoNx0VXJblBmmJcdg5s
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4892cf12aea33b0d71a00ccca73a13be221403c143c1f430f89fb0b49e9c9135. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4aMKoNx0VXJblBmmJcdg5s.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4aMKoNx0VXJblBmmJcdg5s.
  date published: 2026-07-02T11:34:59Z
  text: {"copyright_id":"0x4892cf12aea33b0d71a00ccca73a13be221403c143c1f430f89fb0b49e9c9135","isrc":"DEF058134906","name":"Tristan und Isolde, Act III: Bist du nun tot? O Wonne! Freude!","registered_at":"2026-06-26T22:51:36Z","spotify_id":"4aMKoNx0VXJblBmmJcdg5s","type":"track"}

Tristan und Isolde, Act III: O diese Sonne!
type: MusicRecording
duration: PT3M25S
duration ms: 205053
explicit: false
by artist: Richard Wagner
by artist: Margaret Price
by artist: René Kollo
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134928
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T17:33:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9724031cfe105c6ba95a1e4dcc0934fee5bd900ce9bbb16763d7c5ca4d009309
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4lsyQeQz6HMsW7c9WQmakI.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4lsyQeQz6HMsW7c9WQmakI
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9724031cfe105c6ba95a1e4dcc0934fee5bd900ce9bbb16763d7c5ca4d009309. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4lsyQeQz6HMsW7c9WQmakI.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4lsyQeQz6HMsW7c9WQmakI.
  date published: 2026-07-02T03:55:08Z
  text: {"copyright_id":"0x9724031cfe105c6ba95a1e4dcc0934fee5bd900ce9bbb16763d7c5ca4d009309","isrc":"DEF058134928","name":"Tristan und Isolde, Act III: O diese Sonne!","registered_at":"2026-06-25T17:33:49Z","spotify_id":"4lsyQeQz6HMsW7c9WQmakI","type":"track"}

Tristan und Isolde, Act III: Ich bin's, ich bin's
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duration: PT5M56S
duration ms: 356600
explicit: false
by artist: Richard Wagner
by artist: Margaret Price
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134929
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T19:23:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7f574acf9bbe7c93e037784d7539cfc937c42ab7a21837f748c2247c159668c9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956312
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5hAfg1l0yqxhWFX1qKh6gE.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5hAfg1l0yqxhWFX1qKh6gE
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f574acf9bbe7c93e037784d7539cfc937c42ab7a21837f748c2247c159668c9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5hAfg1l0yqxhWFX1qKh6gE.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5hAfg1l0yqxhWFX1qKh6gE.
  date published: 2026-07-02T05:09:12Z
  text: {"copyright_id":"0x7f574acf9bbe7c93e037784d7539cfc937c42ab7a21837f748c2247c159668c9","isrc":"DEF058134929","name":"Tristan und Isolde, Act III: Ich bin's, ich bin's","registered_at":"2026-06-26T19:23:36Z","spotify_id":"5hAfg1l0yqxhWFX1qKh6gE","type":"track"}

Tristan und Isolde, Act III: Kurwenal! Hör!
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duration: PT7M47S
duration ms: 467186
explicit: false
by artist: Richard Wagner
by artist: Brigitte Fassbaender
by artist: Werner Götz
by artist: Dietrich Fischer-Dieskau
by artist: Wolfgang Hellmich
by artist: Kurt Moll
by artist: MDR Leipzig Radio Chorus
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134907
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T19:22:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe3114c6ee3d7ce6fb8bfbb7bdba10cfc33f16cacde691a89a21d65e1c19a6300
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956351
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2ON5zVi8WKWRW9JwcjDDL3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2ON5zVi8WKWRW9JwcjDDL3
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3114c6ee3d7ce6fb8bfbb7bdba10cfc33f16cacde691a89a21d65e1c19a6300. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2ON5zVi8WKWRW9JwcjDDL3.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2ON5zVi8WKWRW9JwcjDDL3.
  date published: 2026-07-02T11:38:34Z
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Tristan und Isolde, Act III: Mild und leise wie er lächelt
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duration: PT7M26S
duration ms: 446413
explicit: false
by artist: Richard Wagner
by artist: Margaret Price
by artist: Staatskapelle Dresden
by artist: Carlos Kleiber
in album: Wagner: Tristan und Isolde
  type: MusicAlbum
  date published: 1982-01-01
isrc code: DEF058134902
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T19:21:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x08827a03d2930ca3374feeb08940945a3373a5fa3fc15c4fb3600c29b0f40d82
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4OMrKU6tZJip64RAbt3XS9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4OMrKU6tZJip64RAbt3XS9
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
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Margarethe Bence
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Franz Klarwein
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Hans Wilbrink
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Carlos Kleiber
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R. Strauss: Der Rosenkavalier (The Knight of the Rose), Op. 59, TrV 227
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date published: 2016-01-01

Der Rosenkavalier, Op. 59, TrV 227, Act III: Act III: Nein, nein, nein, nein! I trink' kein Wein (Octavian, Baron)
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