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followers: 159
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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track: Concerto in C Major, RV 443: I. Allegro
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  by artist: László Kecskeméti
  by artist: Nicolaus Esterhazy Sinfonia
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    date published: 2005-10-18
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  genre: classical
  genre: early-music
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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
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T23:51:35Z
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track: Concerto in C Major, RV 443: II. Largo
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T23:51:35Z
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track: Chamber Concerto in G Minor, RV 103: I. Allegro
track: Chamber Concerto in G Minor, RV 103: II. Largo
track: Chamber Concerto in G Minor, RV 103: III. Allegro
track: Chamber Concerto in D Major, RV 92: I. Allegro
track: Chamber Concerto in D Major, RV 92: II. Larghetto
track: Chamber Concerto in D Major, RV 92: III. Allegro
track: Chamber Concerto in G Minor, RV 105: I. Allegro
track: Chamber Concerto in G Minor, RV 105: II. Largo
track: Chamber Concerto in G Minor, RV 105: III. Allegro molto
track: Concerto in D Major, RV 94: I. Allegro
track: Concerto in D Major, RV 94: II. Largo

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Chamber Concerto in G Minor, RV 103: I. Allegro
type: MusicRecording
duration: PT4M24S
duration ms: 264266
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by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: László Hadady
by artist: Gyorgy Olajos
by artist: Borbála Dobozy
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genre: classical
genre: early-music
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T23:52:38Z
audio: Chamber Concerto in G Minor, RV 103: I. Allegro
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Chamber Concerto in G Minor, RV 103: II. Largo
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by artist: László Kecskeméti
by artist: László Hadady
by artist: Gyorgy Olajos
by artist: Borbála Dobozy
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genre: classical
genre: early-music
genre: baroque
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T09:58:01Z
audio: Chamber Concerto in G Minor, RV 103: II. Largo
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Chamber Concerto in G Minor, RV 103: III. Allegro
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by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: László Hadady
by artist: Gyorgy Olajos
by artist: Borbála Dobozy
in album: Vivaldi: Chamber Concertos
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genre: classical
genre: early-music
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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: Chamber Concerto in G Minor, RV 103: III. Allegro
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Chamber Concerto in D Major, RV 92: I. Allegro
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x943e9dfaf2d89754ab9cf6418c5cb1d2c37e5ba2005a79b38958c3effbd0c0f9. 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/HKI190423304 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Chamber Concerto in D Major, RV 92: I. Allegro
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Chamber Concerto in D Major, RV 92: II. Larghetto
type: MusicRecording
duration: PT3M22S
duration ms: 202906
explicit: false
by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: Attila Falvay
by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
in album: Vivaldi: Chamber Concertos
  type: MusicAlbum
  date published: 2005-12-13
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190423305
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
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190423305
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25ce729d00159d76a06347c55eef4836942d09eb7980f7af46468fc41067ebb. 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/HKI190423305 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Chamber Concerto in D Major, RV 92: II. Larghetto
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Chamber Concerto in D Major, RV 92: III. Allegro
type: MusicRecording
duration: PT3M9S
duration ms: 189466
explicit: false
by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: Attila Falvay
by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
in album: Vivaldi: Chamber Concertos
  type: MusicAlbum
  date published: 2005-12-13
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190423306
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: 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff0d00f32e6b6804c0bf4e5ae7d5dd9c17dc488aeb1f9daf4b9579fd287bfe1. 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/HKI190423306 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Chamber Concerto in D Major, RV 92: III. Allegro
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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Chamber Concerto in G Minor, RV 105: I. Allegro
type: MusicRecording
duration: PT3M14S
duration ms: 194493
explicit: false
by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: László Hadady
by artist: Attila Falvay
by artist: Gyorgy Olajos
by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
in album: Vivaldi: Chamber Concertos
  type: MusicAlbum
  date published: 2005-12-13
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190423307
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
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190423307
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf061516f59b67745950d57c580102b37a26b8bb542cc1d35218e37a9519474de. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/HKI190423307 — a six-check JSON result.
  date published: 2026-07-30T07:28:30Z
audio: Chamber Concerto in G Minor, RV 105: I. Allegro
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  additional property: Valence (Positivity)
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Chamber Concerto in G Minor, RV 105: II. Largo
type: MusicRecording
duration: PT2M8S
duration ms: 128080
explicit: false
by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: László Hadady
by artist: Attila Falvay
by artist: Gyorgy Olajos
by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
in album: Vivaldi: Chamber Concertos
  type: MusicAlbum
  date published: 2005-12-13
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190423308
additional property: CopyrightID
additional property: CopyrightStatus
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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
  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 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 0x7a48ae038e18f3a3528076ab1e445a53acfd3a18707ac1de529df19784fed0eb. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/HKI190423308 — a six-check JSON result.
  date published: 2026-07-31T00:26:26Z
audio: Chamber Concerto in G Minor, RV 105: II. Largo
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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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    value: -27.529
  additional property: Key Name
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Chamber Concerto in G Minor, RV 105: III. Allegro molto
type: MusicRecording
duration: PT3M22S
duration ms: 202960
explicit: false
by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: László Hadady
by artist: Attila Falvay
by artist: Gyorgy Olajos
by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
in album: Vivaldi: Chamber Concertos
  type: MusicAlbum
  date published: 2005-12-13
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190423309
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190423309
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87dfb83f040807465c9c939f7c39c1c1ca99e9ec4796171549bd5359cb7f2ec3. 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/HKI190423309 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Chamber Concerto in G Minor, RV 105: III. Allegro molto
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Concerto in D Major, RV 94: I. Allegro
type: MusicRecording
duration: PT3M35S
duration ms: 215200
explicit: false
by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: László Hadady
by artist: Attila Falvay
by artist: Gyorgy Olajos
by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
in album: Vivaldi: Chamber Concertos
  type: MusicAlbum
  date published: 2005-12-13
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: HKI190423310
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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  value: 2026-07-30T09:17:12+00:00
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/HKI190423310
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T09:57:33Z
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 0x931fe42a01007054f6535a9a54d1b8b80aad45e656b2f03b9b769169a8bae109. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/HKI190423310 — a six-check JSON result.
  date published: 2026-07-30T09:57:33Z
audio: Concerto in D Major, RV 94: I. Allegro
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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Concerto in D Major, RV 94: II. Largo
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by artist: Antonio Vivaldi
by artist: László Kecskeméti
by artist: László Hadady
by artist: Attila Falvay
by artist: Gyorgy Olajos
by artist: Gyorgy Kertesz
by artist: Borbála Dobozy
in album: Vivaldi: Chamber Concertos
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  date published: 2005-12-13
genre: classical
genre: early-music
genre: baroque
genre: concerto
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  date published: 2026-07-31T00:58:21Z
audio: Concerto in D Major, RV 94: II. Largo
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