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popularity: 21
followers: 77
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819ea0f4cd802b79a7715f50cb449439a437620a8d19334e3c93cd1a9402ce47. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52d03bbb-702c-4bad-91ff-da5ab365013d.json and https://artists.proofprofile.net/proofs/artist/52d03bbb-702c-4bad-91ff-da5ab365013d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
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album: Orchestra Toscana Classica
  type: MusicAlbum
  date published: 2017-12-21
album: Schubert: Symphony No. 2 in B-Flat Major, D. 125 (Live)
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  date published: 2024-03-01
album: Bizet: Symphony in C Major (Live)
  type: MusicAlbum
  date published: 2024-02-23
album: Piano Concerto No. 14 in E-Flat Major, K. 449 (Live)
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  date published: 2022-04-01
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    by artist: Orchestra Toscana Classica
    by artist: Giuseppe Lanzetta
    by artist: Piero Montanari
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      date published: 2022-04-01
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    genre: opera
    genre: chamber-music
    genre: concerto
    isrc code: ITD542200142
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    additional property: OTSVerificationAPI
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      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITD542200142
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T03:30:09Z
    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: 2026-07-02T03:30:09Z
    audio: Piano Concerto No. 14 in E-Flat Major, K. 449: II. Andantino - Live
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album: Mozart: Symphony No. 1 in E-Flat Major, K. 16 (Live)
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  date published: 2022-03-25
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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
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d220372182a5f5e0334c265bc26970d02914676cc93c444c2b60ce1444759eb. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/ITD542200138 — a six-check JSON result.
      date published: 2026-07-30T02:21:55Z
    audio: Symphony No. 1 in E-Flat Major, K. 16: I. Allegro molto - Live
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  track: Symphony No. 1 in E-Flat Major, K. 16: II. Andante - Live
  track: Symphony No. 1 in E-Flat Major, K. 16: III. Presto - Live
album: Symphony No 45 "Farewell" (Live)
album: Mozart: Piano Concertos Nos. 9, 20, 23 & 27 (Live)

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Symphony No. 1 in E-Flat Major, K. 16: II. Andante - Live
type: MusicRecording
duration: PT2M48S
duration ms: 168953
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Orchestra Toscana Classica
by artist: Giuseppe Lanzetta
in album: Mozart: Symphony No. 1 in E-Flat Major, K. 16 (Live)
  type: MusicAlbum
  date published: 2022-03-25
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
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isrc code: ITD542200139
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additional property: CopyrightRegisteredAt
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01107d090cb0a3dabf88d14712f190889b0328e344d576ae01a161e87e6efef. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/ITD542200139 — a six-check JSON result.
  date published: 2026-07-30T19:11:09Z
audio: Symphony No. 1 in E-Flat Major, K. 16: II. Andante - Live
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Symphony No. 1 in E-Flat Major, K. 16: III. Presto - Live
type: MusicRecording
duration: PT2M12S
duration ms: 132051
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Orchestra Toscana Classica
by artist: Giuseppe Lanzetta
in album: Mozart: Symphony No. 1 in E-Flat Major, K. 16 (Live)
  type: MusicAlbum
  date published: 2022-03-25
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: ITD542200140
additional property: CopyrightID
additional property: CopyrightStatus
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf151ba37dabac86a559ed2feb24e64bfd618394da12038cbf50d3e1c91d8af2c. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/ITD542200140 — a six-check JSON result.
  date published: 2026-07-30T19:26:00Z
audio: Symphony No. 1 in E-Flat Major, K. 16: III. Presto - Live
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Symphony No 45 "Farewell" (Live)
type: MusicAlbum
date published: 2022-03-11
track: Symphony No. 45 in F-Sharp Minor "Farewell": IV. Finale. Presto - Live
  type: MusicRecording
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  by artist: Joseph Haydn
  by artist: Orchestra Toscana Classica
  by artist: Giuseppe Lanzetta
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    date published: 2022-03-11
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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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9a1a4fe91fe87469a3a48af7c099b6799116bdd36ac3985d675b7f60aaaccd. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ITD542200099 — a six-check JSON result.
    date published: 2026-07-22T15:38:35Z
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Mozart: Piano Concertos Nos. 9, 20, 23 & 27 (Live)
type: MusicAlbum
date published: 2024-02-16
track: Piano Concerto No. 9 in E-Flat Major, K. 271: I. Allegro - Live
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    date published: 2026-07-02T03:30:09Z
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track: Piano Concerto No. 23 in A Major, K. 488: II. Adagio - Live
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track: Piano Concerto No. 27 in B-Flat Major, K. 595: I. Allegro - Live
track: Piano Concerto No. 27 in B-Flat Major, K. 595: II. Larghetto - Live
track: Piano Concerto No. 27 in B-Flat Major, K. 595: III. Allegro - Live

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date published: 2026-07-02T03:30:09Z

Piano Concerto No. 9 in E-Flat Major, K. 271: III. Rondeau. Presto - Live
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Piano Concerto No. 20 in D Major, K. 466: I. Allegro - Live
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subject of: OpenTimestamps Proof of Existence
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Piano Concerto No. 20 in D Minor, K. 466: II. Andante - Live
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Piano Concerto No. 20 in D Minor, K. 466: III. Allegro assai - Live
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Piano Concerto No. 23 in A Major, K. 488: I. Allegro - Live
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
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by artist: Giuseppe Lanzetta
by artist: Nigel Butterley
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genre: classical
genre: classical-era
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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: 2026-07-02T03:30:09Z
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Piano Concerto No. 23 in A Major, K. 488: III. Allegro assai - Live
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by artist: Wolfgang Amadeus Mozart
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by artist: Giuseppe Lanzetta
by artist: Nigel Butterley
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genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Piano Concerto No. 23 in A Major, K. 488: III. Allegro assai - Live
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Piano Concerto No. 27 in B-Flat Major, K. 595: I. Allegro - Live
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duration ms: 894733
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by artist: Wolfgang Amadeus Mozart
by artist: Orchestra Toscana Classica
by artist: Giuseppe Lanzetta
by artist: Giuseppe Andaloro
in album: Mozart: Piano Concertos Nos. 9, 20, 23 & 27 (Live)
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genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
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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: 2026-07-02T03:30:09Z
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Piano Concerto No. 27 in B-Flat Major, K. 595: II. Larghetto - Live
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by artist: Wolfgang Amadeus Mozart
by artist: Orchestra Toscana Classica
by artist: Giuseppe Lanzetta
by artist: Giuseppe Andaloro
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genre: classical
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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: 2026-07-02T03:30:09Z
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Piano Concerto No. 27 in B-Flat Major, K. 595: III. Allegro - Live
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by artist: Giuseppe Andaloro
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
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