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  track: Clarinet Concerto in A major, K. 622: II. Adagio
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album: The Romantic Mozart - A Celebration Of Mozart's Most Romantic Music
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Concerto for Flute and Harp in C Major, K. 299: I. Allegro
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Concerto for Flute and Harp in C Major, K. 299: III. Allegro
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Flute Concerto In F Major, Op. 10, No. 1, RV 433, "La Tempesta Di Mare": I. Allegro
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Flute Concerto In F Major, Op. 10, No. 1, RV 433, "La Tempesta Di Mare": II. Largo
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genre: classical-flute
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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audio: Flute Concerto In F Major, Op. 10, No. 1, RV 433, "La Tempesta Di Mare": II. Largo
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Flute Concerto In F Major, Op. 10, No. 1, Rv 433, "La Tempesta Di Mare": III. Presto
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by artist: Capella Istropolitana
by artist: Antonio Vivaldi
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genre: classical-flute
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  date published: 2026-06-13T13:32:09Z
audio: Flute Concerto In F Major, Op. 10, No. 1, Rv 433, "La Tempesta Di Mare": III. Presto
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Flute Concerto In D Major, Op. 10, No. 3, RV 428, "Il Gardellino": I. Allegro
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duration: PT3M46S
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by artist: Capella Istropolitana
by artist: Antonio Vivaldi
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genre: classical-flute
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Flute Concerto In D Major, Op. 10, No. 3, RV 428, "Il Gardellino": I. Allegro
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Flute Concerto In D Major, Op. 10, No. 3, RV 428, "Il Gardellino": II. Cantabile
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duration: PT3M4S
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by artist: Capella Istropolitana
by artist: Antonio Vivaldi
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genre: classical-flute
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Flute Concerto In D Major, Op. 10, No. 3, RV 428, "Il Gardellino": II. Cantabile
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Flute Concerto In D Major, Op. 10, No. 3, RV 428, "Il Gardellino": III. Allegro
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duration: PT2M56S
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by artist: Jiří Válek
by artist: Capella Istropolitana
by artist: Antonio Vivaldi
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genre: classical-flute
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Flute Concerto In D Major, Op. 10, No. 3, RV 428, "Il Gardellino": III. Allegro
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Flute Concerto In G Minor, Op. 10, No. 2, RV 439, "La Notte": I. Largo-presto-largo
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duration: PT4M8S
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by artist: Capella Istropolitana
by artist: Antonio Vivaldi
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genre: classical-flute
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additional property: CopyrightID
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Flute Concerto In G Minor, Op. 10, No. 2, RV 439, "La Notte": I. Largo-presto-largo
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Flute Concerto In G Minor, Op. 10, No. 2, RV 439, "La Notte": II. Presto
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genre: classical-flute
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additional property: OTSVerificationAPI
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Flute Concerto In G Minor, Op. 10, No. 2, RV 439, "La Notte": III. Largo-il Sonno-allegro
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Symphony No. 40 in G Minor, K. 550: II. Andante
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Horn Concerto No. 2 in E-Flat Major, K. 417: II. Andante
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audio: Horn Concerto No. 2 in E-Flat Major, K. 417: II. Andante
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Piano Concerto No. 6 in B-Flat Major, K. 238: II. Andante un poco adagio
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String Quartet No. 20 in D Major, K. 499, "hoffmeister": Iii. Adagio
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Piano Sonata No. 17 in B-Flat Major, K. 570: II. Adagio
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Symphony No. 39 in E-Flat Major, K. 543: II. Andante con moto
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Così fan tutte, K. 588, Act I Scene 2: Terzet - Soave sia il vento
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Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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Mozart For Relaxation
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track: String Quartet No. 15 in D Minor, K. 421: Ii. Andante
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Serenade No. 13 in G Major, K. 525, "eine kleine Nachtmusik": Ii. Romanze: Andante
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Concerto for Flute and Harp in C Major, K. 299: Ii. Andantino
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Horn Concerto No. 2 in E-flat Major, K. 417: Ii. Andante
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String Quartet No. 12 in B-flat Major, K. 172: Ii. Adagio
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Serenade No. 9 in D Major, K. 320, "posthorn": Andantino
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Symphony No. 40 in G Minor, K. 550: Ii. Andante
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Piano Concerto No. 5 in D Major, K. 175: Ii. Andante ma poco adagio
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Piano Concerto No. 25 in C Major, K. 503: Ii. Andante
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Symphony No. 14 in A Major, K. 114: Ii. Andante
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb74c6e0c0372f9ddddbc44d6a96c8956aa54b3f5aa70c764b619bca7597050. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199495113.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 14 in A Major, K. 114: Ii. Andante
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  additional property: Valence (Positivity)
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String Quartet No. 20 in D Major, K. 499, "hoffmeister": Iii. Adagio
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duration: PT8M11S
duration ms: 491840
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Eder Quartet
in album: Mozart For Relaxation
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  date published: 2022-02-18
genre: classical
genre: classical-era
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additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b7724ab85e0f70841b8b0f0d40d6aa54f28b9b7f40369c8a82db15190d034b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199279003.
  date published: 2026-07-08T03:20:19Z
audio: String Quartet No. 20 in D Major, K. 499, "hoffmeister": Iii. Adagio
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Horn Concerto No. 4 in E-flat Major, K. 495: Ii. Romance: Andante cantabile
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duration: PT4M29S
duration ms: 269360
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by artist: Wolfgang Amadeus Mozart
by artist: Jacek Muzyk
by artist: Amadeus Chamber Orchestra of Polish Radio
by artist: Agnieszka Duczmal
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genre: classical
genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4460f007003520b88774ae95011085239f3bc0b4709c2bb9536750bff2c28d52. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190712110.
  date published: 2026-07-08T03:53:27Z
audio: Horn Concerto No. 4 in E-flat Major, K. 495: Ii. Romance: Andante cantabile
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Vesperae solennes de Confessore, K. 339: V. Laudate Dominum
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by artist: Greta de Reyghere
by artist: Capella Brugensis
by artist: Collegium Instrumentale Brugense
by artist: Patrick Peire
in album: Mozart For Relaxation
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  date published: 2022-02-18
genre: classical
genre: classical-era
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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
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Vesperae solennes de Confessore, K. 339: V. Laudate Dominum
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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Mozart: Concerto for Flute and Harp / Sinfonia Concertante
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date published: 1989-02-15
track: Concerto for Flute and Harp in C Major, K. 299: I. Allegro
track: Concerto for Flute and Harp in C Major, K. 299: II. Andantino
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  by artist: Wolfgang Amadeus Mozart
  by artist: Jiří Válek
  by artist: Hana Mullerova
  by artist: Capella Istropolitana
  by artist: Richard Edlinger
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    type: MusicAlbum
    date published: 1989-02-15
  genre: classical
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  additional property: CopyrightID
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d353ac06dc2091a504a012d0f66a4967a258c9df92ea4b69ecd8815c066d99. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199274202.
    date published: 2026-06-13T15:41:10Z
  audio: Concerto for Flute and Harp in C Major, K. 299: II. Andantino
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Valence (Positivity)
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track: Concerto for Flute and Harp in C Major, K. 299: III. Allegro
track: Sinfonia concertante in E-Flat Major, K. 297b: I. Allegro
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  duration: PT13M38S
  duration ms: 818000
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  by artist: Wolfgang Amadeus Mozart
  by artist: Jiri Krejci
  by artist: Vaclav Kyzivat
  by artist: Zdeněk Tylšar
  by artist: Jiri Seidl
  by artist: Capella Istropolitana
  by artist: Richard Edlinger
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    date published: 1989-02-15
  genre: classical
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-02T03:55:08Z
  audio: Sinfonia concertante in E-Flat Major, K. 297b: I. Allegro
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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track: Sinfonia concertante in E-Flat Major, K. 297b: II. Adagio
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  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Sinfonia concertante in E-Flat Major, K. 297b: II. Adagio
track: Sinfonia concertante in E-Flat Major, K. 297b: III. Andantino con variazioni

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OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97951ae69bb932917b7ad2631e7f00c68384ef6b8c61d7f9951ae23cb8505dd3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199274205.
date published: 2026-07-02T03:30:09Z

Sinfonia concertante in E-Flat Major, K. 297b: II. Adagio
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additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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Sinfonia concertante in E-Flat Major, K. 297b: III. Andantino con variazioni
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by artist: Zdeněk Tylšar
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by artist: Capella Istropolitana
by artist: Richard Edlinger
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Sinfonia concertante in E-Flat Major, K. 297b: III. Andantino con variazioni
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Mozart For Study
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track: Clarinet Concerto in A Major, K. 622: Ii. Adagio
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
  audio: Clarinet Concerto in A Major, K. 622: Ii. Adagio
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track: Serenade No. 13 in G Major, K. 525, "eine kleine Nachtmusik": Ii. Romanze: Andante
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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track: Piano Concerto No. 23 in A Major, K. 488: Ii. Adagio
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  by artist: Concentus Hungaricus
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  subject of: OpenTimestamps Proof of Existence
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track: Symphony No. 40 in G Minor, K. 550: Ii. Andante
track: Piano Sonata No. 12 in F Major, K. 332: Ii. Adagio
track: Concerto for Flute and Harp in C Major, K. 299: Ii. Andantino
track: Violin Sonata No. 17 in C Major, K. 296: Ii. Andante sostenuto
track: Horn Concerto No. 3 in E-flat Major, K. 447: Ii. Romance: Larghetto

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x543cf7c80e36778f3c88fde8c5e4392179515504c2e8ae098bf5b1991abc3d46. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199276902.
date published: 2026-07-08T08:56:20Z

Piano Concerto No. 23 in A Major, K. 488: Ii. Adagio
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Symphony No. 40 in G Minor, K. 550: Ii. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Symphony No. 40 in G Minor, K. 550: Ii. Andante
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Piano Sonata No. 12 in F Major, K. 332: Ii. Adagio
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Piano Sonata No. 12 in F Major, K. 332: Ii. Adagio
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Concerto for Flute and Harp in C Major, K. 299: Ii. Andantino
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by artist: Capella Istropolitana
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subject of: OpenTimestamps Proof of Existence
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subject of: OpenTimestamps Proof of Existence
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    value: 0.447
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.954
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.185
  additional property: Liveness
    type: PropertyValue
    value: 0.175
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.749
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.147
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Recorder Sonata in C Major, Op. 1 No. 7, HWV 365: I. Larghetto
type: MusicRecording
duration: PT2M51S
duration ms: 171760
explicit: false
by artist: George Frideric Handel
by artist: Jiří Válek
by artist: Josef Hala
by artist: František Sláma
in album: Handel: Flute Sonatas
  type: MusicAlbum
  date published: 2018-01-02
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CZA160506525
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:00:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x208c90d15f4ffd22e103400c274efc69fef1a9db7f1b78c8e8b541befc09652e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506525
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208c90d15f4ffd22e103400c274efc69fef1a9db7f1b78c8e8b541befc09652e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506525.
  date published: 2026-07-08T03:53:27Z
audio: Recorder Sonata in C Major, Op. 1 No. 7, HWV 365: I. Larghetto
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 147.647
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
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    value: 0.823
  additional property: Liveness
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  additional property: Valence (Positivity)
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    value: 0.373
  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Recorder Sonata in C Major, Op. 1 No. 7, HWV 365: IV. A tempo di gavotti
type: MusicRecording
duration: PT2M0S
duration ms: 120017
explicit: false
by artist: George Frideric Handel
by artist: Jiří Válek
by artist: Josef Hala
by artist: František Sláma
in album: Handel: Flute Sonatas
  type: MusicAlbum
  date published: 2018-01-02
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CZA160506528
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:20:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1199034110ae258c648735897c50a38524549acf78d35332e690b3a1480e943b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506528
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1199034110ae258c648735897c50a38524549acf78d35332e690b3a1480e943b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506528.
  date published: 2026-07-08T03:20:19Z
audio: Recorder Sonata in C Major, Op. 1 No. 7, HWV 365: IV. A tempo di gavotti
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.784
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.737
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.945
  additional property: Liveness
    type: PropertyValue
    value: 0.085
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.973
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.675
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Flute Sonata in B Minor, Op. 1 No. 9, HWV 367b: I. Largo
type: MusicRecording
duration: PT2M35S
duration ms: 155285
explicit: false
by artist: George Frideric Handel
by artist: Jiří Válek
by artist: Josef Hala
by artist: František Sláma
in album: Handel: Flute Sonatas
  type: MusicAlbum
  date published: 2018-01-02
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CZA160506532
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:31:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6832a8ae0dd24831c1891fb43ff1639d966cb2a371d99597d9a3d569352f84ec
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506532
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6832a8ae0dd24831c1891fb43ff1639d966cb2a371d99597d9a3d569352f84ec. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506532.
  date published: 2026-07-08T03:53:27Z
audio: Flute Sonata in B Minor, Op. 1 No. 9, HWV 367b: I. Largo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 90.228
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.379
  additional property: Energy
    type: PropertyValue
    value: 0.148
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.93
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.598
  additional property: Liveness
    type: PropertyValue
    value: 0.112
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.188
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.03
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Flute Sonata in B Minor, Op. 1 No. 9, HWV 367b: V. Alla breve
type: MusicRecording
duration: PT1M52S
duration ms: 112444
explicit: false
by artist: George Frideric Handel
by artist: Jiří Válek
by artist: Josef Hala
by artist: František Sláma
in album: Handel: Flute Sonatas
  type: MusicAlbum
  date published: 2018-01-02
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CZA160506536
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:33:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x56ebad46a33f1d7c2b58f74d10a491dbd44be124685e3ba6beeaf48c600bf9d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506536
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ebad46a33f1d7c2b58f74d10a491dbd44be124685e3ba6beeaf48c600bf9d1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506536.
  date published: 2026-07-08T03:22:41Z
audio: Flute Sonata in B Minor, Op. 1 No. 9, HWV 367b: V. Alla breve
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.764
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.601
  additional property: Energy
    type: PropertyValue
    value: 0.2
  additional property: Speechiness
    type: PropertyValue
    value: 0.096
  additional property: Acousticness
    type: PropertyValue
    value: 0.918
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.272
  additional property: Liveness
    type: PropertyValue
    value: 0.061
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.772
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.753
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Flute Sonata in B Minor, Op. 1 No. 9, HWV 367b: VI. Andante
type: MusicRecording
duration: PT3M53S
duration ms: 233094
explicit: false
by artist: George Frideric Handel
by artist: Jiří Válek
by artist: Josef Hala
by artist: František Sláma
in album: Handel: Flute Sonatas
  type: MusicAlbum
  date published: 2018-01-02
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CZA160506537
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:43:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0101413d6692eb2cb6e922cced81d63acef91ed65805e9163bf85b53b2814c3a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506537
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0101413d6692eb2cb6e922cced81d63acef91ed65805e9163bf85b53b2814c3a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506537.
  date published: 2026-07-08T08:56:20Z
audio: Flute Sonata in B Minor, Op. 1 No. 9, HWV 367b: VI. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.97
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.363
  additional property: Energy
    type: PropertyValue
    value: 0.122
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.903
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.522
  additional property: Liveness
    type: PropertyValue
    value: 0.255
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.321
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.892
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Recorder Sonata in F Major, Op. 1 No. 11, HWV 369: II. Allegro
type: MusicRecording
duration: PT2M16S
duration ms: 136884
explicit: false
by artist: George Frideric Handel
by artist: Jiří Válek
by artist: Josef Hala
by artist: František Sláma
in album: Handel: Flute Sonatas
  type: MusicAlbum
  date published: 2018-01-02
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CZA160506549
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:18:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x295f0874a22afcaf300c3884ed22cda94ad39658732217e58e06315cdab2fcc6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506549
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295f0874a22afcaf300c3884ed22cda94ad39658732217e58e06315cdab2fcc6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506549.
  date published: 2026-07-08T08:56:20Z
audio: Recorder Sonata in F Major, Op. 1 No. 11, HWV 369: II. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.54
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.792
  additional property: Energy
    type: PropertyValue
    value: 0.22
  additional property: Speechiness
    type: PropertyValue
    value: 0.062
  additional property: Acousticness
    type: PropertyValue
    value: 0.835
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.085
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.939
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.342
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Recorder Sonata in F Major, Op. 1 No. 11, HWV 369: III. Siciliana
type: MusicRecording
duration: PT1M31S
duration ms: 91724
explicit: false
by artist: George Frideric Handel
by artist: Jiří Válek
by artist: Josef Hala
by artist: František Sláma
in album: Handel: Flute Sonatas
  type: MusicAlbum
  date published: 2018-01-02
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CZA160506550
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:00:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc8680ea08db0b7725d9c38d684b6b1c638a7eb9c750f691a37d7cd6a7c560b0b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506550
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8680ea08db0b7725d9c38d684b6b1c638a7eb9c750f691a37d7cd6a7c560b0b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506550.
  date published: 2026-07-08T03:53:27Z
audio: Recorder Sonata in F Major, Op. 1 No. 11, HWV 369: III. Siciliana
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Recorder Sonata in F Major, Op. 1 No. 11, HWV 369: IV. Allegro
type: MusicRecording
duration: PT1M58S
duration ms: 118441
explicit: false
by artist: George Frideric Handel
by artist: Jiří Válek
by artist: Josef Hala
by artist: František Sláma
in album: Handel: Flute Sonatas
  type: MusicAlbum
  date published: 2018-01-02
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CZA160506551
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506551
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8ff4acb2d281e64d6967b6e22209c5b8fa328be4eeffc70ae03b1c9915901a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506551.
  date published: 2026-07-08T03:20:19Z
audio: Recorder Sonata in F Major, Op. 1 No. 11, HWV 369: IV. Allegro
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Flute Sonata in A Minor, Op. 1 No. 16, HWV 374: III. Adagio
type: MusicRecording
duration: PT2M36S
duration ms: 156447
explicit: false
by artist: George Frideric Handel
by artist: Jiří Válek
by artist: Josef Hala
by artist: František Sláma
in album: Handel: Flute Sonatas
  type: MusicAlbum
  date published: 2018-01-02
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CZA160506556
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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506556
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8db089c08a64cba08abe15fef8dee48f4b831ced6b1c6b377f8cb318009585. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506556.
  date published: 2026-07-08T03:53:27Z
audio: Flute Sonata in A Minor, Op. 1 No. 16, HWV 374: III. Adagio
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Flute Sonata in A Minor, Op. 1 No. 16, HWV 374: IV. Allegro
type: MusicRecording
duration: PT1M47S
duration ms: 107130
explicit: false
by artist: George Frideric Handel
by artist: Jiří Válek
by artist: Josef Hala
by artist: František Sláma
in album: Handel: Flute Sonatas
  type: MusicAlbum
  date published: 2018-01-02
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CZA160506557
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: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506557
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b09ba4cabd62f1faa5d4f91221d468a1b3e4123f310688c0208eca7128a140. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506557.
  date published: 2026-07-08T08:56:20Z
audio: Flute Sonata in A Minor, Op. 1 No. 16, HWV 374: IV. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Flute Sonata in E Minor, Op. 1 No. 17, HWV 375: IV. Minuet
type: MusicRecording
duration: PT2M2S
duration ms: 122222
explicit: false
by artist: George Frideric Handel
by artist: Jiří Válek
by artist: Josef Hala
by artist: František Sláma
in album: Handel: Flute Sonatas
  type: MusicAlbum
  date published: 2018-01-02
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CZA160506563
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
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57737248a2b8a6de1204866caf9f028ef73f86f340762e4203bf7fe5e1651a4e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506563.
  date published: 2026-07-08T08:56:20Z
audio: Flute Sonata in E Minor, Op. 1 No. 17, HWV 375: IV. Minuet
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Flute Sonata in B Minor, Op. 1 No. 18, HWV 376: I. Adagio
type: MusicRecording
duration: PT2M37S
duration ms: 157927
explicit: false
by artist: George Frideric Handel
by artist: Jiří Válek
by artist: Josef Hala
by artist: František Sláma
in album: Handel: Flute Sonatas
  type: MusicAlbum
  date published: 2018-01-02
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CZA160506566
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: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e817fcc98eb5108bad19c8ca50b9354fe7e7dc68ccb07f63f0c9f5a7549fb18. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506566.
  date published: 2026-07-08T08:56:20Z
audio: Flute Sonata in B Minor, Op. 1 No. 18, HWV 376: I. Adagio
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  additional property: Mode (Major/Minor)
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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Flute Sonata in B Minor, Op. 1 No. 18, HWV 376: III. Largo
type: MusicRecording
duration: PT1M15S
duration ms: 75549
explicit: false
by artist: George Frideric Handel
by artist: Jiří Válek
by artist: Josef Hala
by artist: František Sláma
in album: Handel: Flute Sonatas
  type: MusicAlbum
  date published: 2018-01-02
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CZA160506568
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
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579846384fa8738d6c022a5742e74149ffc8ac2edbd964ac4e0c55ec164bccba. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160506568.
  date published: 2026-07-08T03:22:41Z
audio: Flute Sonata in B Minor, Op. 1 No. 18, HWV 376: III. Largo
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Flute Sonata in B Minor, Op. 1 No. 18, HWV 376: IV. Allegro
type: MusicRecording
duration: PT1M58S
duration ms: 118190
explicit: false
by artist: George Frideric Handel
by artist: Jiří Válek
by artist: Josef Hala
by artist: František Sláma
in album: Handel: Flute Sonatas
  type: MusicAlbum
  date published: 2018-01-02
genre: classical
genre: early-music
genre: baroque
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フルート作品集
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Antonín & Pavel Vranický: Sextets for Flute, Oboe and String Quartet
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Schulhoff: Concertante and Ballet Music
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Rejcha: Tre quartetti, Op. 98
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Vivaldi: Wind And Brass Concertos
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track: Oboe Concerto In D Minor, Op. 8, No. 9, RV 454: I. Allegro - Moderato
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  audio: Trumpet Concerto In G Minor (Arr. J. Thilde): II. Lento
track: Flute Concerto In D Major, Op. 10, No. 3, RV 428, "Il Gardellino": I. Allegro
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track: Trumpet Concerto In B Flat Minor (Arr. J. Thilde): III. Allegro
track: Bassoon Concerto In E Minor, RV 484: I. Allegro Poco
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Bassoon Concerto In E Minor, RV 484: I. Allegro Poco
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Vivaldi: Flute Concertos (Famous)
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French Flute Works (Fauré, Ibert, Bozza, Debussy, Roussel, Milhaud, Honegger, Messiaen, Dutilleux)
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Flétnový Koktejl
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track: 12 German Dances, K. 586: No. 7 In G Major
track: Piano Concerto No. 27 In B Flat Major, Op. 17, K. 595: II. Larghetto
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Piano Concerto No. 27 In B Flat Major, Op. 17, K. 595: II. Larghetto
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Válek: Symphony No. 8 "Hic sunt homines" and No. 9 "Rinascimente"
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track: The 4 Seasons: Violin Concerto In G Minor, Op. 8, No. 2, RV 315, "L'estate" (Summer): I. Allegro Non Molto
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track: Concerto In C Major, RV 443: I. Allegro
track: Flute Concerto In D Major, Op. 10, No. 3, RV 428, "Il Gardellino": II. Cantabile
track: Oboe Concerto In C Major, RV 450: II. Larghetto

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The 4 Seasons: Violin Concerto In G Minor, Op. 8, No. 2, RV 315, "L'estate" (Summer): II. Adagio - Presto
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
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The 4 Seasons: Violin Concerto In G Minor, Op. 8, No. 2, RV 315, "L'estate" (Summer): III. Presto
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: The 4 Seasons: Violin Concerto In G Minor, Op. 8, No. 2, RV 315, "L'estate" (Summer): III. Presto
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The 4 Seasons: Violin Concerto In F Major, Op. 8, No. 3, RV 293, "L'autunno" (Autumn): I. Allegro
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: The 4 Seasons: Violin Concerto In F Major, Op. 8, No. 3, RV 293, "L'autunno" (Autumn): I. Allegro
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The 4 Seasons: Violin Concerto In F Major, Op. 8, No. 3, RV 293, "L'autunno" (Autumn): II. Adagio Molto
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: The 4 Seasons: Violin Concerto In F Major, Op. 8, No. 3, RV 293, "L'autunno" (Autumn): II. Adagio Molto
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The 4 Seasons: Violin Concerto In F Major, Op. 8, No. 3, RV 293, "L'autunno" (Autumn): III. Allegro
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: The 4 Seasons: Violin Concerto In F Major, Op. 8, No. 3, RV 293, "L'autunno" (Autumn): III. Allegro
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The 4 Seasons: Violin Concerto In F Minor, Op. 8, No. 4, RV 297, "L'inverno" (Winter): I. Allegro Non Molto
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: The 4 Seasons: Violin Concerto In F Minor, Op. 8, No. 4, RV 297, "L'inverno" (Winter): I. Allegro Non Molto
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The 4 Seasons: Violin Concerto In F Minor, Op. 8, No. 4, RV 297, "L'inverno" (Winter): II. Largo
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
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The 4 Seasons: Violin Concerto In F Minor, Op. 8, No. 4, RV 297, "L'inverno" (Winter): III. Allegro
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Concerto In C Major, RV 443: I. Allegro
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Flute Concerto In D Major, Op. 10, No. 3, RV 428, "Il Gardellino": II. Cantabile
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Oboe Concerto In C Major, RV 450: II. Larghetto
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The Essential Capella Istropolitana
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track: Concerto Grosso in F Major, Op. 3, No. 1: I. Allegro assai: Adagio
track: Messiah, HWV 56: Hallelujah
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track: Canon & Gigue in D Major, P. 37: Canon
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track: Concerto Grosso in D Major, Op. 1, No. 9: V. Allegro
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track: Serenade in E Minor, Op. 20: II. Larghetto
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track: Xerxes, HWV 40: Larghetto "Ombra mai fu" (Arr. for Oboe & Orchestra)
track: Concerto Grosso in E Minor, Op. 3, No. 3: IV. Allegro
track: Symphony No. 104 in D Major, Hob. I:104 "London": III. Menuet - Trio
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Messiah, HWV 56: Hallelujah
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Concerto Grosso No. 3 in F Major: IV. Largo
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genre: italian-opera
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Concerto Grosso No. 3 in F Major: IV. Largo
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Canon & Gigue in D Major, P. 37: Canon
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Canon & Gigue in D Major, P. 37: Canon
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Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:53:57Z
audio: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
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Concerto Grosso in D Major, Op. 1, No. 9: V. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Concerto Grosso in D Major, Op. 1, No. 9: V. Allegro
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Music for the Royal Fireworks, HWV 351: IV. La réjouissance (Featured in "Greenfingers")
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Music for the Royal Fireworks, HWV 351: IV. La réjouissance (Featured in "Greenfingers")
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Viola Concerto in G Major, TWV 51:G9: I. Largo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Viola Concerto in G Major, TWV 51:G9: I. Largo
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Sonata (Sinfonia) a 5 in G Minor, Op. 2, No. 6: I. Adagio
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subject of: OpenTimestamps Proof of Existence
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Symphony No. 94 in G Major, Hob. I:94 "Surprise": II. Andante
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The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": II. Largo
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Serenade in E Minor, Op. 20: II. Larghetto
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Symphony in C Major, Ben. 128: I. Allegro molto spiritoso
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Xerxes, HWV 40: Larghetto "Ombra mai fu" (Arr. for Oboe & Orchestra)
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Concerto Grosso in E Minor, Op. 3, No. 3: IV. Allegro
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Symphony No. 104 in D Major, Hob. I:104 "London": III. Menuet - Trio
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50 Best Smooth Classics
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Lakmé: Blumenduett (Lara Croft Tomb Raider): Lakme: Dome epais, le jasmin (Flower Duet)
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Rhapsody on a Theme of Paganini, Op. 43: Variation 18: Andante cantabile
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by artist: Bernd Glemser
by artist: Polish National Radio Symphony Orchestra
by artist: György Lehel
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:16:32Z
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Symphony No. 5 in C-Sharp Minor: IV. Adagietto: Sehr langsam
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by artist: London Symphony Orchestra
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subject of: OpenTimestamps Proof of Existence
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5 Lieder, Op. 49: No. 4. Wiegenlied (arr. P. Nagy for piano)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: 5 Lieder, Op. 49: No. 4. Wiegenlied (arr. P. Nagy for piano)
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Recuerdos de la Alhambra
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Recuerdos de la Alhambra
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Adagio in G Minor (attrib. to Albinoni)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Adagio in G Minor (attrib. to Albinoni)
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Pavane, Op. 50
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  date published: 2026-07-08T08:56:20Z
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Ein Sommernachtstraum, Op. 61, MWV M13: A Midsummer Night's Dream, Op. 61, Act III: Nocturne
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Madama Butterfly, Act II: Madame Butterfly, Act II: Humming Chorus
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duration: PT2M50S
duration ms: 170160
explicit: false
by artist: Giacomo Puccini
by artist: Slovak Philharmonic Chorus
by artist: Slovak Radio Symphony Orchestra
by artist: Alexander Rahbari
in album: 50 Best Smooth Classics
  type: MusicAlbum
  date published: 2012-10-01
isrc code: HKI199700205
additional property: CopyrightID
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ee418822de9bbf8f90f109ac21cf401d574569443f0fdd7b04ca3b3d4adbc4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199700205.
  date published: 2026-07-08T03:22:41Z
audio: Madama Butterfly, Act II: Madame Butterfly, Act II: Humming Chorus
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Prélude à l'après-midi d'un faune, L. 86: Prelude a l'apres-midi d'un faune
type: MusicRecording
duration: PT10M12S
duration ms: 612280
explicit: false
by artist: Claude Debussy
by artist: Orchestre National De Lyon
by artist: Jun Markl
in album: 50 Best Smooth Classics
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  date published: 2012-10-01
genre: classical
genre: impressionism
genre: post-romantic-era
isrc code: HKI190830901
additional property: CopyrightID
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190830901
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ae2d930d499d54be28f09bcbbccd13e7f62919bd8791a73828aa560227651a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190830901.
  date published: 2026-07-08T08:56:20Z
audio: Prélude à l'après-midi d'un faune, L. 86: Prelude a l'apres-midi d'un faune
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Adagio for Strings, Op. 11
type: MusicRecording
duration: PT7M46S
duration ms: 466973
explicit: false
by artist: Samuel Barber
by artist: Royal Scottish National Orchestra
by artist: Marin Alsop
in album: 50 Best Smooth Classics
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  date published: 2012-10-01
isrc code: HKI190049611
additional property: CopyrightID
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190049611
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d8c9e3881cc5d0f8ab6b1f98b22deb57435f8e77b6b5adbccf5cc88f6bd0115. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190049611.
  date published: 2026-07-08T03:22:41Z
audio: Adagio for Strings, Op. 11
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O Magnum Mysterium: O magnum mysterium
type: MusicRecording
duration: PT5M47S
duration ms: 347746
explicit: false
by artist: Morten Lauridsen
by artist: Elora Festival Singers
by artist: Noel Edison
in album: 50 Best Smooth Classics
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  date published: 2012-10-01
isrc code: HKI190627717
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: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190627717
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b378c9c4c37e2abeb79d1fff32c93360eee403365f6fd0bec1936bd50c51e99. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190627717.
  date published: 2026-07-08T03:20:19Z
audio: O Magnum Mysterium: O magnum mysterium
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Acousticness
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The Lark Ascending
type: MusicRecording
duration: PT15M3S
duration ms: 903400
explicit: false
by artist: Ralph Vaughan Williams
by artist: David Greed
by artist: English Northern Philharmonia
by artist: David Lloyd-Jones
in album: 50 Best Smooth Classics
  type: MusicAlbum
  date published: 2012-10-01
isrc code: HKI199633410
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: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199633410
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4e0e210a809267ee22ad2e223fe037853ec352a54e8948f90b1c91058a7321. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199633410.
  date published: 2026-07-08T03:20:19Z
audio: The Lark Ascending
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The Gadfly Suite, Op. 97a: VIII. Romance
type: MusicRecording
duration: PT5M53S
duration ms: 353346
explicit: false
by artist: Dmitri Shostakovich
by artist: Ukraine National Symphony Orchestra
by artist: Theodore Kuchar
in album: 50 Best Smooth Classics
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  date published: 2012-10-01
isrc code: HKI199617108
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
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199617108
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd83c99159a1a60fdc45ffe84e87f35f8856de780ab5cfc823e47219fd168f2b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199617108.
  date published: 2026-07-08T03:20:19Z
audio: The Gadfly Suite, Op. 97a: VIII. Romance
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Variations on an Original Theme, Op. 36, "Enigma": Variation 9: Nimrod
type: MusicRecording
duration: PT3M42S
duration ms: 222066
explicit: false
by artist: Edward Elgar
by artist: Slovak Radio Symphony Orchestra
by artist: Adrian Leaper
in album: 50 Best Smooth Classics
  type: MusicAlbum
  date published: 2012-10-01
genre: classical
genre: late-romantic-era
genre: british-modern-classical
genre: victorian-britain
isrc code: HKI199708109
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: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Variations on an Original Theme, Op. 36, "Enigma": Variation 9: Nimrod
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Concerto for Flute and Harp in C Major, K. 299: II. Andantino
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subject of: OpenTimestamps Proof of Existence
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2, "Moonlight": I. Adagio sostenuto
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subject of: OpenTimestamps Proof of Existence
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Cavalleria Rusticana: Intermezzo
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subject of: OpenTimestamps Proof of Existence
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Piano Concerto No. 2 in F Major, Op. 102: II. Andante
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subject of: OpenTimestamps Proof of Existence
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audio: Piano Concerto No. 2 in F Major, Op. 102: II. Andante
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Overture (Suite) No. 3 in D Major, BWV 1068: II. Air, "Air on a G String"
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audio: Overture (Suite) No. 3 in D Major, BWV 1068: II. Air, "Air on a G String"
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Ave verum corpus, K. 618: Ave Verum Corpus, K. 618
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Serse (Xerxes), HWV 40: Ombra mai fu: Larghetto (arr. for oboe and orchestra)
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Carnival of the Animals: XIII. The Swan
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subject of: OpenTimestamps Proof of Existence
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audio: Carnival of the Animals: XIII. The Swan
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track: Piano Sonata No. 12 in F Major, K. 332: II. Adagio
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    date published: 2026-07-06T07:53:57Z
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track: Symphony No. 40 in G Minor, K. 550: II. Andante
track: Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": II. Romance

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OpenTimestamps Proof of Existence
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date published: 2026-07-06T07:53:57Z

Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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Symphony No. 40 in G Minor, K. 550: II. Andante
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  date published: 2026-07-08T03:22:41Z
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Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": II. Romance
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