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  track: Mathis der Maler Symphony: II. Grablegung
  track: Mathis der Maler Symphony: III. Versuchung des heiligen Antonius
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track: Concerto in C Minor for Piano, Trumpet & Strings, Op. 35: I. Allegro moderato
track: Concerto in C Minor for Piano, Trumpet & Strings, Op. 35: II. Lento

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Malipiero: Orchestral Works
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Mozart / Arr. Grieg for Two Pianos: Piano Sonata No. 16 in C Major, K. 545 "Semplice": I. Allegro (Live)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T16:54:37Z
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Rachmaninov: Suite No. 2 in C Major, Op. 17: III. Romance. Andantino (Live)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T19:53:13Z
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Ravel: La Valse, M. 72 (Version for Two Pianos) [Live]
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:51:48Z
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Bach, JS: Keyboard Partita No. 2 in C Minor, BWV 826: III. Allemande
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T18:39:05Z
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Sergio Tiempo plays Liszt and Tchaikovsky
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track: Franz Liszt : Sonetto 104 del Petrarca (Agitato assai — Adagio)
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Schellengerger, Hansjorg: Lost & Found
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Paganini: Violin Concertos Nos. 1 & 2 & Sonata con variazioni (Live)
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T09:50:37Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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  subject of: OpenTimestamps Proof of Existence
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OTSVerificationAPI
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-30T09:37:10Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T02:19:15Z
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  subject of: OpenTimestamps Proof of Existence
  audio: Symphony No. 5 in E Minor, Op. 64: II. Andante cantabile con alcuna licenza
track: Symphony No. 6 in B Minor, Op. 74 "Pathétique": II. Allegro con grazia
track: Symphony No. 5 in E Minor, Op. 64: III. Valse. Allegro moderato
track: Symphony No. 6 in B Minor, Op. 74 "Pathétique": III. Allegro molto vivace
track: Symphony No. 5 in E Minor, Op. 64: IV. Finale. Andante maestoso - Allegro vivace
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OpenTimestamps Proof of Existence
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date published: 2026-07-30T18:23:33Z

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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c620f0a51f648146c88e5b5fa0534ad7e7f470083f2f91d6b362c318a4500a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH1262310502 — a six-check JSON result.
  date published: 2026-07-31T18:48:12Z
audio: Symphony No. 6 in B Minor, Op. 74 "Pathétique": II. Allegro con grazia
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Symphony No. 5 in E Minor, Op. 64: III. Valse. Allegro moderato
type: MusicRecording
duration: PT5M59S
duration ms: 359426
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Markus Poschner
by artist: Orchestra della Svizzera Italiana
in album: Pyotr Ilyich Tchaikovsky, Symphony No. 5 & No. 6
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  date published: 2024-01-12
isrc code: CH1262310403
additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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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
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0a6ee2994782b6ca17c9a62a4cf9486a04baab8f858d8b18de6500df25b2c7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH1262310403 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 5 in E Minor, Op. 64: III. Valse. Allegro moderato
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Symphony No. 6 in B Minor, Op. 74 "Pathétique": III. Allegro molto vivace
type: MusicRecording
duration: PT8M41S
duration ms: 521880
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Markus Poschner
by artist: Orchestra della Svizzera Italiana
in album: Pyotr Ilyich Tchaikovsky, Symphony No. 5 & No. 6
  type: MusicAlbum
  date published: 2024-01-12
isrc code: CH1262310503
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d3e88a209ff9d72f22fd1259b12f89dffbb772f889db63ae951a1866e579451. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH1262310503 — a six-check JSON result.
  date published: 2026-07-31T16:33:26Z
audio: Symphony No. 6 in B Minor, Op. 74 "Pathétique": III. Allegro molto vivace
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Symphony No. 5 in E Minor, Op. 64: IV. Finale. Andante maestoso - Allegro vivace
type: MusicRecording
duration: PT9M32S
duration ms: 572361
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Markus Poschner
by artist: Orchestra della Svizzera Italiana
in album: Pyotr Ilyich Tchaikovsky, Symphony No. 5 & No. 6
  type: MusicAlbum
  date published: 2024-01-12
isrc code: CH1262310404
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
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f6868b07927e2bf6df942148a99fe51bf863dea1bfa04570fcfd2e0cffc9a7. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH1262310404 — a six-check JSON result.
  date published: 2026-07-31T05:23:41Z
audio: Symphony No. 5 in E Minor, Op. 64: IV. Finale. Andante maestoso - Allegro vivace
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Symphony No. 6 in B Minor, Op. 74 "Pathétique": IV. Adagio lamentoso
type: MusicRecording
duration: PT9M41S
duration ms: 581466
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Markus Poschner
by artist: Orchestra della Svizzera Italiana
in album: Pyotr Ilyich Tchaikovsky, Symphony No. 5 & No. 6
  type: MusicAlbum
  date published: 2024-01-12
isrc code: CH1262310504
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412164b9a5b3341606f1b4e6a4605a1cb4f95cd24662c78a75a1e8397a16f12e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH1262310504 — a six-check JSON result.
  date published: 2026-07-31T18:48:12Z
audio: Symphony No. 6 in B Minor, Op. 74 "Pathétique": IV. Adagio lamentoso
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Clarinet Concerto op.35 · Concertino op. 38
type: MusicAlbum
date published: 2023-04-21
track: Concerto No. 1 for 2 Clarinets in E-Flat Major, Op. 35: I. Allegro
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  duration: PT10M46S
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  by artist: Franz Krommer
  by artist: Orchestra della Svizzera Italiana
  by artist: Howard Griffiths
  by artist: Paolo Beltramini
  by artist: Corrado Giuffredi
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    date published: 2023-04-21
  popularity: 2
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c11ec0c5f8f837d36a904b9bbe11bae42c52ebdf12e475e9a41403cebaca38. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB201859701 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Concerto No. 1 for 2 Clarinets in E-Flat Major, Op. 35: I. Allegro
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    additional property: Danceability
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track: Concerto No. 1 for 2 Clarinets in E-Flat Major, Op. 35: III. Rondo
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ad1c17c7739b9f984919a38d8646494754df0fa665b840c6025df868a21cf2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB201859703 — a six-check JSON result.
    date published: 2026-07-08T03:22:41Z
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Early 20th-Century Songs from Rome
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R. Strauss: Violin Concerto, Op. 18 & Aus Italien, Op. 16
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Krommer: Symphonies Nos. 6 & 9
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Boieldieu: Piano Concerto & Six Overtures
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    date published: 2026-07-02T03:55:08Z
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track: Clarinet Concerto: IV. Allegrissimo
track: Clarinet Concerto: I. Allegretto un poco
track: Clarinet Concerto: II. Poco adagio
track: Clarinet Concerto: III. Allegro non troppo
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960185
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331807460
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T01:32:48Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c3881027ffe9d4b019b2898962293bc7d0914ff2dec5476cc3556e5178ec82. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331807460 — a six-check JSON result.
  date published: 2026-07-30T01:32:48Z
audio: Clarinet Concerto: III. Allegro non troppo
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  additional property: Speechiness
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  additional property: Acousticness
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Clarinet Concerto: IV. Allegro vivace
type: MusicRecording
duration: PT5M58S
duration ms: 358160
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by artist: Carl Nielsen
by artist: Orchestra della Svizzera Italiana
by artist: Alain Lombard
by artist: Paolo Beltramini
in album: Francaix, Nielsen: Clarinet Concertos
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  date published: 2018-12-21
genre: orchestra
isrc code: NLY331807461
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/NLY331807461
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352c2d9031ce4daf8d317851dd708d08a9a95913deaade7e95cbe8eeffc24076. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331807461 — a six-check JSON result.
  date published: 2026-07-30T18:46:00Z
audio: Clarinet Concerto: IV. Allegro vivace
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The Rossini Project, Vol. 1: The Young Rossini (Contains First World Recordings)
type: MusicAlbum
date published: 2018-12-14

Krommer: Symphonies Nos. 4, 5, & 7
type: MusicAlbum
date published: 2018-03-23
track: Symphony No. 7 in G Minor, P I:7: IV. Finale. Adagio - Allegro
  type: MusicRecording
  duration: PT5M32S
  duration ms: 332800
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  by artist: Franz Krommer
  by artist: Orchestra della Svizzera Italiana
  by artist: Howard Griffiths
  in album: Krommer: Symphonies Nos. 4, 5, & 7
    type: MusicAlbum
    date published: 2018-03-23
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  additional property: CopyrightStatus
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  additional property: OTSHash
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    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB201712512
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc449de8fa9283485505052c8228cc88ce38f1b8c1788837e8d94eec01673ae. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB201712512 — a six-check JSON result.
    date published: 2026-07-02T03:55:08Z
  audio: Symphony No. 7 in G Minor, P I:7: IV. Finale. Adagio - Allegro
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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: 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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Maderna & Berio: Now, And Then
type: MusicAlbum
date published: 2017-10-27
track: Tre Pezzi: I. Recercar super LA-FA-SOL-LA-RE
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  duration: PT4M33S
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  by artist: Girolamo Frescobaldi
  by artist: Orchestra della Svizzera Italiana
  by artist: Dennis Russell Davies
  in album: Maderna & Berio: Now, And Then
    type: MusicAlbum
    date published: 2017-10-27
  popularity: 2
  genre: classical
  genre: early-music
  genre: baroque
  genre: italian-baroque
  genre: renaissance
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  additional property: CopyrightChainExplorerURL
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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/DEB331548501
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa58afab85b1a99731d0c237d7f413117890629758fa330ac540400e00489d0. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB331548501 — a six-check JSON result.
    date published: 2026-07-30T21:35:24Z
  audio: Tre Pezzi: I. Recercar super LA-FA-SOL-LA-RE
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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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    additional property: Key Name
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track: Tre Pezzi: IIa. Christe
  type: MusicRecording
  duration: PT0M52S
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  by artist: Girolamo Frescobaldi
  by artist: Orchestra della Svizzera Italiana
  by artist: Dennis Russell Davies
  in album: Maderna & Berio: Now, And Then
    type: MusicAlbum
    date published: 2017-10-27
  popularity: 1
  genre: classical
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  genre: baroque
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB331548502
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58342ae0f8e887baa389bec026f5a8614782cd18f99cbb9c0b9e7622a91a56ce. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB331548502 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
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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: Instrumentalness
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    additional property: Valence (Positivity)
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track: Tre Pezzi: IIb. Kyrie
  type: MusicRecording
  duration: PT0M44S
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  by artist: Girolamo Frescobaldi
  by artist: Orchestra della Svizzera Italiana
  by artist: Dennis Russell Davies
  in album: Maderna & Berio: Now, And Then
    type: MusicAlbum
    date published: 2017-10-27
  popularity: 1
  genre: classical
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  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Tre Pezzi: IIb. Kyrie
track: Tre Pezzi: III. Bergamasca
track: Concerto armonici No. 3 in A Major "Palestrina-Konzert" (Rev. Maderna): II. Andante (Arr. Maderna)

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CopyrightStatus
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CopyrightRegisteredAt
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CopyrightChainExplorerURL
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OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960368

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB331548503

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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899fe18dc9c81058e317809aa872a0a34140c7b4f2085ec456f3a85a870ab37a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB331548503 — a six-check JSON result.
date published: 2026-07-31T08:26:41Z

Tre Pezzi: IIb. Kyrie
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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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additional property: Acousticness
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additional property: Instrumentalness
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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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additional property: Mode Name
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Tre Pezzi: III. Bergamasca
type: MusicRecording
duration: PT4M43S
duration ms: 283120
explicit: false
by artist: Girolamo Frescobaldi
by artist: Orchestra della Svizzera Italiana
by artist: Dennis Russell Davies
in album: Maderna & Berio: Now, And Then
  type: MusicAlbum
  date published: 2017-10-27
popularity: 1
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: renaissance
isrc code: DEB331548504
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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Concerto armonici No. 3 in A Major "Palestrina-Konzert" (Rev. Maderna): II. Andante (Arr. Maderna)
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Saint-Saëns: Mélodies avec orchestre
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Krommer: Symphonies Nos. 1-3
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Casella: Divertimento per Fulvia, Op. 64
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Strauss: Der Bürger als Edelmann Suite, Op. 60b, TrV 228c & Duett-Concertino, TrV 293
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Van Cliburn Plays Tchaikovsky
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Hoffmeister: Symphonies
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Richard Flury: Suite für Streichorchester - Streichquartett No. 6 - Streichquartett No. 7
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Soliva: La testa di bronzo
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Gounod: Complete Works for Pedal Piano & Orchestra (Hyperion Romantic Piano Concerto 62)
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Devia, Mariella: Arie da Opere
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Glazunov & Schoeck: Works for Violin and Orchestra (Hyperion Romantic Violin Concerto 14)
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Spohr: Symphonies Nos. 7 & 9
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Bottesini: Duets
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Mozart : Cosí fan tutte
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Danzi: Complete Symphonies
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Spohr: Symphonies Nos. 3 & 6
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