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followers: 64
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additional property: OTSVerifyInstructions
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  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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  by artist: Henk Rubingh
  by artist: Julian Rachlin
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  by artist: Liz Kenny
  by artist: Jan Jansen
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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: 2026-07-08T03:22:41Z
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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: 2026-07-02T03:55:08Z
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track: Violin Concerto No. 1 in E Major, RV 269 "La primavera": I. Allegro
track: Violin Concerto No. 1 in E Major, RV 269 "La primavera": II. Largo
track: Violin Concerto No. 1 in E Major, RV 269 "La primavera": III. Allegro
track: Violin Concerto No. 2 in G Minor, RV 315 "L'estate": I. Allegro non molto
track: Violin Concerto No. 2 in G Minor, RV 315 "L'estate": II. Adagio - Presto
track: Violin Concerto No. 2 in G Minor, RV 315 "L'estate": III. Presto
track: Violin Concerto No. 3 in F Major, RV 293 "L'autunno": I. Allegro
track: Violin Concerto No. 3 in F Major, RV 293 "L'autunno": II. Adagio molto
track: Violin Concerto No. 3 in F Major, RV 293 "L'autunno": III. Allegro
track: Violin Concerto No. 4 in F Minor, RV 297 "L'inverno": I. Allegro non molto
track: Violin Concerto No. 4 in F Minor, RV 297 "L'inverno": II. Largo
track: Violin Concerto No. 4 in F Minor, RV 297 "L'inverno": III. Allegro
track: The Four Seasons, Spring, Violin Concerto in E Major, RV 269, Op. 8 No. 1: I. Allegro
track: The Four Seasons, Summer, Violin Concerto in G Minor, RV 315, Op. 8 No. 2: III. Presto
track: The Four Seasons, Winter, Violin Concerto in F Minor, RV 297, Op. 8 No. 4: II. Largo

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Violin Concerto No. 1 in E Major, RV 269 "La primavera": I. Allegro
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explicit: false
by artist: Antonio Vivaldi
by artist: Janine Jansen
by artist: Candida Thompson
by artist: Henk Rubingh
by artist: Julian Rachlin
by artist: Stacey Watton
by artist: Maarten Jansen
by artist: Liz Kenny
by artist: Jan Jansen
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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: 2026-06-13T12:47:07Z
audio: Violin Concerto No. 1 in E Major, RV 269 "La primavera": I. Allegro
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by artist: Henk Rubingh
by artist: Julian Rachlin
by artist: Maarten Jansen
by artist: Stacey Watton
by artist: Liz Kenny
by artist: Jan Jansen
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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: 2026-06-13T12:47:07Z
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by artist: Henk Rubingh
by artist: Julian Rachlin
by artist: Maarten Jansen
by artist: Stacey Watton
by artist: Liz Kenny
by artist: Jan Jansen
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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: 2026-06-13T12:47:07Z
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Violin Concerto No. 2 in G Minor, RV 315 "L'estate": I. Allegro non molto
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by artist: Julian Rachlin
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by artist: Liz Kenny
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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
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0441740
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
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 0x9141cc64d56b70899fad92459d6926bb0729b55a09ae70a0b5bae754f459613e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBBBA0441740.
  date published: 2026-06-13T12:53:06Z
audio: Violin Concerto No. 2 in G Minor, RV 315 "L'estate": I. Allegro non molto
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Violin Concerto No. 2 in G Minor, RV 315 "L'estate": II. Adagio - Presto
type: MusicRecording
duration: PT2M12S
duration ms: 132173
explicit: false
by artist: Antonio Vivaldi
by artist: Janine Jansen
by artist: Candida Thompson
by artist: Henk Rubingh
by artist: Julian Rachlin
by artist: Maarten Jansen
by artist: Stacey Watton
by artist: Liz Kenny
by artist: Jan Jansen
in album: Vivaldi: The Four Seasons
  type: MusicAlbum
  date published: 2004-08-01
isrc code: GBBBA0441750
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0441750
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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  date published: 2026-06-13T13:32:09Z
audio: Violin Concerto No. 2 in G Minor, RV 315 "L'estate": II. Adagio - Presto
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Violin Concerto No. 2 in G Minor, RV 315 "L'estate": III. Presto
type: MusicRecording
duration: PT2M42S
duration ms: 162040
explicit: false
by artist: Antonio Vivaldi
by artist: Janine Jansen
by artist: Candida Thompson
by artist: Henk Rubingh
by artist: Julian Rachlin
by artist: Maarten Jansen
by artist: Stacey Watton
by artist: Liz Kenny
by artist: Jan Jansen
in album: Vivaldi: The Four Seasons
  type: MusicAlbum
  date published: 2004-08-01
isrc code: GBBBA0441760
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0441760
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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  date published: 2026-06-13T12:47:07Z
audio: Violin Concerto No. 2 in G Minor, RV 315 "L'estate": III. Presto
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  additional property: Valence (Positivity)
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Violin Concerto No. 3 in F Major, RV 293 "L'autunno": I. Allegro
type: MusicRecording
duration: PT5M1S
duration ms: 301720
explicit: false
by artist: Antonio Vivaldi
by artist: Janine Jansen
by artist: Candida Thompson
by artist: Henk Rubingh
by artist: Julian Rachlin
by artist: Maarten Jansen
by artist: Stacey Watton
by artist: Liz Kenny
by artist: Jan Jansen
in album: Vivaldi: The Four Seasons
  type: MusicAlbum
  date published: 2004-08-01
isrc code: GBBBA0441770
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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  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0441770
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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 0x93113edf3f21fa61ff9f5a0e9d7179d05b85c444a0cbe47d67cf0a539e93763a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBBBA0441770.
  date published: 2026-06-13T12:47:07Z
audio: Violin Concerto No. 3 in F Major, RV 293 "L'autunno": I. Allegro
  type: AudioObject
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.462
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.222
  additional property: Loudness (dB)
    type: PropertyValue
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Violin Concerto No. 3 in F Major, RV 293 "L'autunno": II. Adagio molto
type: MusicRecording
duration: PT2M44S
duration ms: 164506
explicit: false
by artist: Antonio Vivaldi
by artist: Janine Jansen
by artist: Candida Thompson
by artist: Henk Rubingh
by artist: Julian Rachlin
by artist: Maarten Jansen
by artist: Stacey Watton
by artist: Liz Kenny
by artist: Jan Jansen
in album: Vivaldi: The Four Seasons
  type: MusicAlbum
  date published: 2004-08-01
isrc code: GBBBA0441780
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
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0441780
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0x48720c5844c06428991d7d313942fe44e9340e6b24aa13149ad41f331354925d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBBBA0441780.
  date published: 2026-06-13T15:41:10Z
audio: Violin Concerto No. 3 in F Major, RV 293 "L'autunno": II. Adagio molto
  type: AudioObject
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.033
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.958
  additional property: Key Name
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  additional property: Mode Name
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Violin Concerto No. 3 in F Major, RV 293 "L'autunno": III. Allegro
type: MusicRecording
duration: PT3M11S
duration ms: 191933
explicit: false
by artist: Antonio Vivaldi
by artist: Janine Jansen
by artist: Candida Thompson
by artist: Henk Rubingh
by artist: Julian Rachlin
by artist: Maarten Jansen
by artist: Stacey Watton
by artist: Liz Kenny
by artist: Jan Jansen
in album: Vivaldi: The Four Seasons
  type: MusicAlbum
  date published: 2004-08-01
isrc code: GBBBA0441790
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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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
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0441790
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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 0xafa03ac9a189e1a9b9c98723d35fd89dbbc1980cf94b84d420fbc4d3884b8538. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBBBA0441790.
  date published: 2026-06-13T12:47:07Z
audio: Violin Concerto No. 3 in F Major, RV 293 "L'autunno": III. Allegro
  type: AudioObject
  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
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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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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Violin Concerto No. 4 in F Minor, RV 297 "L'inverno": I. Allegro non molto
type: MusicRecording
duration: PT3M0S
duration ms: 180466
explicit: false
by artist: Antonio Vivaldi
by artist: Janine Jansen
by artist: Candida Thompson
by artist: Henk Rubingh
by artist: Julian Rachlin
by artist: Maarten Jansen
by artist: Stacey Watton
by artist: Liz Kenny
by artist: Jan Jansen
in album: Vivaldi: The Four Seasons
  type: MusicAlbum
  date published: 2004-08-01
isrc code: GBBBA0441800
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x96d1220eda5d3ac17b4dbf7fb75faa5e98603ef53d80843dbf7a65018edf3969
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0441800
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
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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Violin Concerto No. 4 in F Minor, RV 297 "L'inverno": II. Largo
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Violin Concerto No. 4 in F Minor, RV 297 "L'inverno": III. Allegro
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Violin Concerto No. 1 in E Major, RV 269 "La primavera": I. Allegro
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The Four Seasons, Spring, Violin Concerto in E Major, RV 269, Op. 8 No. 1: I. Allegro
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The Four Seasons, Summer, Violin Concerto in G Minor, RV 315, Op. 8 No. 2: III. Presto
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The Four Seasons, Winter, Violin Concerto in F Minor, RV 297, Op. 8 No. 4: II. Largo
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