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type: MusicGroup
popularity: 3
followers: 136
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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album: Dolce Pupillo
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  date published: 2024-02-16
album: Albicastro, H.: Concerti A 4, Op. 7, Nos. 1-12
  type: MusicAlbum
  date published: 2000-01-01
  track: Concerto a 4 in F Major, Op. 7, No. 1: II. Allegro
  track: Concerto a 4 in D Minor, Op. 7, No. 2: I. Grave
  track: Concerto a 4 in C Major, Op. 7, No. 3: III. Tremolo, Spiccato: Adagio
  track: Concerto a 4 in C Minor, Op. 7, No. 4: III. Adagio
  track: Concerto a 4 in B-Flat Major, Op. 7, No. 6: III. Grave e spirituoso
  track: Concerto a 4 in F Major, Op. 7, No. 1: III. Grave
  track: Concerto a 4 in C Minor, Op. 7, No. 4: I. Grave
album: Neville Marriner - The Early Recordings
  type: MusicAlbum
  date published: 2014-01-01
album: The Di Martinelli Manuscript: Violin Sonatas of the Late 17th Century
  type: MusicAlbum
  date published: 2021-06-18
album: Treasures: Chamber Music from the Collection of Earl Rudolf Franz Erwein von Schonborn zu Wiesentheid
  type: MusicAlbum
  date published: 2008-04-01
album: Cabinet of Wonders, Vol. 2
  type: MusicAlbum
  date published: 2022-01-14
album: Recital of Swiss Composers for Violin & Harpsichord
  type: MusicAlbum
  date published: 1990

Concerto a 4 in F Major, Op. 7, No. 1: II. Allegro
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by artist: Collegium Marianum
by artist: Collegium 1704
by artist: Vaclav Luks
in album: Albicastro, H.: Concerti A 4, Op. 7, Nos. 1-12
  type: MusicAlbum
  date published: 2000-01-01
popularity: 3
isrc code: CH1490012402
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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
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: 2026-07-08T03:20:19Z
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Concerto a 4 in D Minor, Op. 7, No. 2: I. Grave
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by artist: Collegium Marianum
by artist: Collegium 1704
by artist: Vaclav Luks
in album: Albicastro, H.: Concerti A 4, Op. 7, Nos. 1-12
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  date published: 2000-01-01
popularity: 2
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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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Concerto a 4 in D Minor, Op. 7, No. 2: I. Grave
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Concerto a 4 in C Major, Op. 7, No. 3: III. Tremolo, Spiccato: Adagio
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duration: PT3M46S
duration ms: 226266
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by artist: Henricus Albicastro
by artist: Collegium Marianum
by artist: Collegium 1704
by artist: Vaclav Luks
in album: Albicastro, H.: Concerti A 4, Op. 7, Nos. 1-12
  type: MusicAlbum
  date published: 2000-01-01
popularity: 3
isrc code: CH1490012411
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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: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Concerto a 4 in C Major, Op. 7, No. 3: III. Tremolo, Spiccato: Adagio
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Concerto a 4 in C Minor, Op. 7, No. 4: III. Adagio
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duration: PT4M54S
duration ms: 294280
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by artist: Collegium Marianum
by artist: Collegium 1704
by artist: Vaclav Luks
in album: Albicastro, H.: Concerti A 4, Op. 7, Nos. 1-12
  type: MusicAlbum
  date published: 2000-01-01
popularity: 8
isrc code: CH1490012415
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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: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Concerto a 4 in C Minor, Op. 7, No. 4: III. Adagio
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Concerto a 4 in B-Flat Major, Op. 7, No. 6: III. Grave e spirituoso
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duration: PT1M22S
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by artist: Vaclav Luks
in album: Albicastro, H.: Concerti A 4, Op. 7, Nos. 1-12
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  date published: 2000-01-01
popularity: 1
isrc code: CH1490012424
additional property: CopyrightID
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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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:39:04Z
audio: Concerto a 4 in B-Flat Major, Op. 7, No. 6: III. Grave e spirituoso
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Concerto a 4 in F Major, Op. 7, No. 1: III. Grave
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