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followers: 8
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subject of: OpenTimestamps Proof of Existence
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track: Cello Sonata in E Minor, RV 40: II. Allegro
track: Tamburetta, concerto a tre voci
track: Cello Sonata in E Minor, RV 40: I. Largo

Cello Sonata in E Minor, RV 40: II. Allegro
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by artist: Antonio Vivaldi
by artist: Roel Dieltiens
by artist: Anthony Woodrow
by artist: Robert Kohnen
in album: The Cello in Baroque Italy
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f241c3ceb5141f7a03e56dc6f785b60821592d4579940770cfda674287cdf71. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DECP69111002.
  date published: 2026-07-08T03:53:27Z
audio: Cello Sonata in E Minor, RV 40: II. Allegro
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Tamburetta, concerto a tre voci
type: MusicRecording
duration: PT2M38S
duration ms: 158000
explicit: false
by artist: Adam Jarzębski
by artist: Lucy van Dael
by artist: Richte Van Der Meer
by artist: Titia de Zwart
by artist: Anthony Woodrow
by artist: Jacques Ogg
by artist: Michael Fentross
in album: Adam Jarzębski: Canzoni e concerti
  type: MusicAlbum
  date published: 2021-09-29
popularity: 0
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43265bb00266b6ca46263dc137a25adb41f61bb571a6429591a37c0bfa9bde0f. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/PLC702112008.
  date published: 2026-07-31T20:22:46Z
audio: Tamburetta, concerto a tre voci
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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

Cello Sonata in E Minor, RV 40: I. Largo
type: MusicRecording
duration: PT4M40S
duration ms: 280000
explicit: false
by artist: Antonio Vivaldi
by artist: Roel Dieltiens
by artist: Anthony Woodrow
by artist: Robert Kohnen
in album: The Cello in Baroque Italy
  type: MusicAlbum
  date published: 2015-05-26
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab96657468c918fa35e31c1b3e879153ea5e76140aaa564be31954a7a44ad092. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DECP69111001.
  date published: 2026-07-31T05:17:02Z
audio: Cello Sonata in E Minor, RV 40: I. Largo
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    value: Eb
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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