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type: MusicGroup
genre: classical
popularity: 4
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://artists.proofprofile.net/proofs/artist/14670aa2-ad49-4e26-b615-cfe173b339cf.ots
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5279fd7ca8e37893b6e03a0bdd1a03fa5af42bef4d918de058ff4b80fd8e3fff. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/14670aa2-ad49-4e26-b615-cfe173b339cf.json and https://artists.proofprofile.net/proofs/artist/14670aa2-ad49-4e26-b615-cfe173b339cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:05:05Z
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track: Concerto in A minor for 2 Violins and Orchestra, Op. 3 No. 8, RV 522: I. Allegro
  type: MusicRecording
  duration: PT4M19S
  duration ms: 259333
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  by artist: Antonio Vivaldi
  by artist: Alexander Titov
  by artist: Igor Romanyuk
  by artist: Vladislov Gluz
  in album: Vivaldi: The Four Seasons; Violin Concertos RV. 522, 565, 516
    type: MusicAlbum
    date published: 1994-02-08
  genre: classical
  genre: early-music
  genre: baroque
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  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19915302
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xcd9e458bb7931d07b8ee2d7c815319784667c78c72af0a7816dba9f77d2b1722. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19915302.
    date published: 2026-07-08T03:20:19Z
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track: Concerto in A minor for 2 Violins and Orchestra, Op. 3 No. 8, RV 522: II. Larghetto e spiritoso
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  by artist: Vladislov Gluz
  in album: Vivaldi: The Four Seasons; Violin Concertos RV. 522, 565, 516
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    date published: 1994-02-08
  genre: classical
  genre: early-music
  genre: baroque
  genre: concerto
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19915303
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T03:35:13Z
  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: 2026-07-30T03:35:13Z
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track: Concerto in A minor for 2 Violins and Orchestra, Op. 3 No. 8, RV 522: III. Allegro
track: Concerto in D minor for 2 Violins, Cello and Orchestra, Op. 3, No. 11, RV 565: I. Allegro II. Adagio e Spiccato - Allegro
track: Concerto in D minor for 2 Violins, Cello and Orchestra, Op. 3, No. 11, RV 565: III. Largo e spiccato
track: Concerto in D minor for 2 Violins, Cello and Orchestra, Op. 3, No. 11, RV 565: VI. Allegro
track: Concerto in G Major for 2 Violins and Orchestra, Op. 21, No. 1, RV 516 (G-Dur/en sol majeur/in sol maggiore): I. Allegro molto
track: Concerto in G Major for 2 Violins and Orchestra, Op. 21, No. 1, RV 516 (G-Dur/en sol majeur/in sol maggiore): II. Andante
track: Concerto in G Major for 2 Violins and Orchestra, Op. 21, No. 1, RV 516 (G-Dur/en sol majeur/in sol maggiore): III. Allegro

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Liveness
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Valence (Positivity)
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Loudness (dB)
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Concerto in A minor for 2 Violins and Orchestra, Op. 3 No. 8, RV 522: III. Allegro
type: MusicRecording
duration: PT3M58S
duration ms: 238693
explicit: false
by artist: Antonio Vivaldi
by artist: Alexander Titov
by artist: Igor Romanyuk
by artist: Vladislov Gluz
in album: Vivaldi: The Four Seasons; Violin Concertos RV. 522, 565, 516
  type: MusicAlbum
  date published: 1994-02-08
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: USSM19915304
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-30T07:31:43+00:00
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
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T07:48:45Z
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 0x99686afb81327d88cd2460a42adc4eca821b05d67f64dfcd0598dae3dd830360. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USSM19915304.
  date published: 2026-07-30T07:48:45Z
audio: Concerto in A minor for 2 Violins and Orchestra, Op. 3 No. 8, RV 522: III. Allegro
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Concerto in D minor for 2 Violins, Cello and Orchestra, Op. 3, No. 11, RV 565: I. Allegro II. Adagio e Spiccato - Allegro
type: MusicRecording
duration: PT4M18S
duration ms: 258093
explicit: false
by artist: Antonio Vivaldi
by artist: Alexander Titov
by artist: Igor Romanyuk
by artist: Vladislav Gluz
by artist: Sergei Roldugin
in album: Vivaldi: The Four Seasons; Violin Concertos RV. 522, 565, 516
  type: MusicAlbum
  date published: 1994-02-08
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: USSM19915306
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
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
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19915306
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x39d50bb04d5f9fc6f74ce43ef4a6a3b78031e4449b5b7ce224a9c51d454ccd1d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19915306.
  date published: 2026-07-08T03:20:19Z
audio: Concerto in D minor for 2 Violins, Cello and Orchestra, Op. 3, No. 11, RV 565: I. Allegro II. Adagio e Spiccato - Allegro
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Concerto in D minor for 2 Violins, Cello and Orchestra, Op. 3, No. 11, RV 565: III. Largo e spiccato
type: MusicRecording
duration: PT3M18S
duration ms: 198560
explicit: false
by artist: Antonio Vivaldi
by artist: Alexander Titov
by artist: Igor Romanyuk
by artist: Vladislav Gluz
by artist: Sergei Roldugin
by artist: St. Petersburg Classic Music Studio Orchestra
in album: Vivaldi: The Four Seasons; Violin Concertos RV. 522, 565, 516
  type: MusicAlbum
  date published: 1994-02-08
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: USSM19915307
additional property: CopyrightID
additional property: CopyrightStatus
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  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-30T13:22:17+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19915307
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:36:16Z
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 0xd90de5eb0ceefa04aea8b6526cfe687c9a715fc037c77e7d6588574322731093. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USSM19915307.
  date published: 2026-07-30T14:36:16Z
audio: Concerto in D minor for 2 Violins, Cello and Orchestra, Op. 3, No. 11, RV 565: III. Largo e spiccato
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Concerto in D minor for 2 Violins, Cello and Orchestra, Op. 3, No. 11, RV 565: VI. Allegro
type: MusicRecording
duration: PT2M54S
duration ms: 174866
explicit: false
by artist: Antonio Vivaldi
by artist: Alexander Titov
by artist: Igor Romanyuk
by artist: Vladislav Gluz
by artist: Sergei Roldugin
by artist: St. Petersburg Classic Music Studio Orchestra
in album: Vivaldi: The Four Seasons; Violin Concertos RV. 522, 565, 516
  type: MusicAlbum
  date published: 1994-02-08
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: CopyrightRegisteredAt
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Concerto in D minor for 2 Violins, Cello and Orchestra, Op. 3, No. 11, RV 565: VI. Allegro
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Concerto in G Major for 2 Violins and Orchestra, Op. 21, No. 1, RV 516 (G-Dur/en sol majeur/in sol maggiore): I. Allegro molto
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duration: PT5M23S
duration ms: 323133
explicit: false
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by artist: Igor Romanyuk
by artist: Vladislav Gluz
by artist: St. Petersburg Classic Music Studio Orchestra
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genre: classical
genre: early-music
genre: baroque
genre: concerto
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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 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: 2026-07-30T14:53:07Z
audio: Concerto in G Major for 2 Violins and Orchestra, Op. 21, No. 1, RV 516 (G-Dur/en sol majeur/in sol maggiore): I. Allegro molto
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    type: PropertyValue
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Concerto in G Major for 2 Violins and Orchestra, Op. 21, No. 1, RV 516 (G-Dur/en sol majeur/in sol maggiore): II. Andante
type: MusicRecording
duration: PT2M15S
duration ms: 135226
explicit: false
by artist: Antonio Vivaldi
by artist: Alexander Titov
by artist: Igor Romanyuk
by artist: Vladislav Gluz
by artist: St. Petersburg Classic Music Studio Orchestra
in album: Vivaldi: The Four Seasons; Violin Concertos RV. 522, 565, 516
  type: MusicAlbum
  date published: 1994-02-08
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: USSM19915311
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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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 0x40db16558f76ccfb4c7a1868421e27655edc289351f9d82165b33c2e861be4d6. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USSM19915311.
  date published: 2026-07-30T15:42:38Z
audio: Concerto in G Major for 2 Violins and Orchestra, Op. 21, No. 1, RV 516 (G-Dur/en sol majeur/in sol maggiore): II. Andante
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Concerto in G Major for 2 Violins and Orchestra, Op. 21, No. 1, RV 516 (G-Dur/en sol majeur/in sol maggiore): III. Allegro
type: MusicRecording
duration: PT4M8S
duration ms: 248306
explicit: false
by artist: Antonio Vivaldi
by artist: Alexander Titov
by artist: Igor Romanyuk
by artist: Vladislav Gluz
by artist: St. Petersburg Classic Music Studio Orchestra
in album: Vivaldi: The Four Seasons; Violin Concertos RV. 522, 565, 516
  type: MusicAlbum
  date published: 1994-02-08
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: USSM19915312
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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  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x70ffc85173b05c009047e9cc9d001515c1f84a59278db35db84f929f3751e1ea. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19915312.
  date published: 2026-07-08T03:20:19Z
audio: Concerto in G Major for 2 Violins and Orchestra, Op. 21, No. 1, RV 516 (G-Dur/en sol majeur/in sol maggiore): III. Allegro
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