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popularity: 6
followers: 5
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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: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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track: Hoffmeister: Viola Concerto in D Major: I. Allegro (Cadenza by Beyer)
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  by artist: Franz Anton Hoffmeister
  by artist: Gérard Caussé
  by artist: Solistes de Montpellier-Moscou
  in album: Viola Legend - The Erato Years
    type: MusicAlbum
    date published: 2018-03-16
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T19:35:34Z
  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 0x9f4f64d97a528a5e47e42ea6f7f74b6a8ae7c3727db6d63ea9cf8b91dfb6937e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRZ110601738.
    date published: 2026-07-29T19:35:34Z
  audio: Hoffmeister: Viola Concerto in D Major: I. Allegro (Cadenza by Beyer)
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track: Hoffmeister: Viola Concerto in D Major: II. Adagio
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  by artist: Gérard Caussé
  by artist: Solistes de Montpellier-Moscou
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    type: MusicAlbum
    date published: 2018-03-16
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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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    date published: 2026-07-30T21:35:24Z
  audio: Hoffmeister: Viola Concerto in D Major: II. Adagio
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track: Hoffmeister: Viola Concerto in D Major: III. Rondo
track: Hummel: Fantasy for viola and orchestra (reconstruction Fernand Oubradous)
track: Schubert, J / Rev. Schultz-Hauser: Viola Concerto in C Major: I. Allegro
track: Schubert, J / Rev. Schultz-Hauser: Viola Concerto in C Major: II Romanze. Adagio
track: Schubert, J / Rev. Schultz-Hauser: Viola Concerto in C Major: III. Rondo. Allegretto
track: Weber: Andante e rondo ongarese, Op. 35: I. Andante (revised Georg Schünemann)
track: Weber: Andante e rondo ongarese, Op. 35: II. Rondo ungarese (revised Georg Schünemann)

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value: -27.427

Key Name
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Hoffmeister: Viola Concerto in D Major: III. Rondo
type: MusicRecording
duration: PT4M30S
duration ms: 270240
explicit: false
by artist: Franz Anton Hoffmeister
by artist: Gérard Caussé
by artist: Solistes de Montpellier-Moscou
in album: Viola Legend - The Erato Years
  type: MusicAlbum
  date published: 2018-03-16
isrc code: FRZ110601740
additional property: CopyrightID
additional property: CopyrightStatus
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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 0x709b12ad861d09473a2793fa9f243145d7a36983ad5460d82ca395c2d50138c3. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRZ110601740.
  date published: 2026-07-31T12:24:41Z
audio: Hoffmeister: Viola Concerto in D Major: III. Rondo
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Hummel: Fantasy for viola and orchestra (reconstruction Fernand Oubradous)
type: MusicRecording
duration: PT7M30S
duration ms: 450680
explicit: false
by artist: Johann Nepomuk Hummel
by artist: Gérard Caussé
by artist: Solistes de Montpellier-Moscou
in album: Viola Legend - The Erato Years
  type: MusicAlbum
  date published: 2018-03-16
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSHash
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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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  date published: 2026-07-22T12:33:25Z
audio: Hummel: Fantasy for viola and orchestra (reconstruction Fernand Oubradous)
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Schubert, J / Rev. Schultz-Hauser: Viola Concerto in C Major: I. Allegro
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by artist: Gérard Caussé
by artist: Solistes de Montpellier-Moscou
in album: Viola Legend - The Erato Years
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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 0xd2e22e5c77b295ec089e86cb00b86d43adf4dcad8e287bcd7c7ba97a84846e9e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRZ110601742.
  date published: 2026-07-29T19:35:34Z
audio: Schubert, J / Rev. Schultz-Hauser: Viola Concerto in C Major: I. Allegro
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Schubert, J / Rev. Schultz-Hauser: Viola Concerto in C Major: II Romanze. Adagio
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by artist: Gérard Caussé
by artist: Solistes de Montpellier-Moscou
in album: Viola Legend - The Erato Years
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genre: classical
genre: classical-piano
genre: chamber-music
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additional property: CopyrightID
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
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