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subject of: OpenTimestamps Proof of Existence
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-31T00:26:26Z
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-30T03:35:13Z
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  track: Brandenburg Concerto No. 4 in G, BWV 1049: 1. Allegro
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album: Greatest Violin Concertos
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album: Classical Favorites (Composed By: Antonio Vivaldi)
album: Realms of Gold: The Recorded Legacy of American Concert Pianist William Corbet-Jones, Vol. 1 & 2
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subject of: OpenTimestamps Proof of Existence
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T22:27:44Z
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T07:28:30Z
audio: Brandenburg Concerto No. 3 in G, BWV 1048: 1. (without tempo indication)
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Brandenburg Concerto No. 3 in G, BWV 1048: 2.Allegro
type: MusicRecording
duration: PT5M24S
duration ms: 324320
explicit: false
by artist: Johann Sebastian Bach
by artist: Lucerne Festival Strings
by artist: Rudolf Baumgartner
by artist: Christa Zecherle
by artist: Gerhart Hetzel
by artist: Ulrich Koch
by artist: Martin Fischer
by artist: Hansjürgen Schmidt
by artist: Claude Starck
by artist: Konrad Häsler
by artist: Werner Eugster
by artist: Hermann Voerkel
by artist: Eduard Kaufmann
in album: Bach, J.S.: Brandenburg Concertos Nos.2, 3 & 4; Orchestral Suite No.3, BWV 1068
  type: MusicAlbum
  date published: 1989-01-01
popularity: 2
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: DEF055903312
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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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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: 2026-07-30T20:09:33Z
audio: Brandenburg Concerto No. 3 in G, BWV 1048: 2.Allegro
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Brandenburg Concerto No. 4 in G, BWV 1049: 1. Allegro
type: MusicRecording
duration: PT7M36S
duration ms: 456000
explicit: false
by artist: Johann Sebastian Bach
by artist: Lucerne Festival Strings
by artist: Rudolf Baumgartner
by artist: Adolf Scherbaum
by artist: Hans-Martin Linde
by artist: Thea von Sparr
by artist: Helmut Winschermann
in album: Bach, J.S.: Brandenburg Concertos Nos.2, 3 & 4; Orchestral Suite No.3, BWV 1068
  type: MusicAlbum
  date published: 1989-01-01
popularity: 1
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: DEF056000561
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
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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: 2026-07-30T10:42:33Z
audio: Brandenburg Concerto No. 4 in G, BWV 1049: 1. Allegro
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Brandenburg Concerto No. 4 in G, BWV 1049: 2. Andante
type: MusicRecording
duration: PT3M43S
duration ms: 223506
explicit: false
by artist: Johann Sebastian Bach
by artist: Lucerne Festival Strings
by artist: Rudolf Baumgartner
by artist: Adolf Scherbaum
by artist: Hans-Martin Linde
by artist: Thea von Sparr
by artist: Helmut Winschermann
in album: Bach, J.S.: Brandenburg Concertos Nos.2, 3 & 4; Orchestral Suite No.3, BWV 1068
  type: MusicAlbum
  date published: 1989-01-01
popularity: 4
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: DEF056000562
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
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additional property: OTSVerificationAPI
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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 0x3a16b71a97624ea612fbe2e41a7b8baaed78a47b32115da70865a26f565fce24. 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/DEF056000562.
  date published: 2026-07-08T03:20:19Z
audio: Brandenburg Concerto No. 4 in G, BWV 1049: 2. Andante
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Brandenburg Concerto No. 4 in G, BWV 1049: 3. Presto
type: MusicRecording
duration: PT5M13S
duration ms: 313000
explicit: false
by artist: Johann Sebastian Bach
by artist: Lucerne Festival Strings
by artist: Rudolf Baumgartner
by artist: Adolf Scherbaum
by artist: Hans-Martin Linde
by artist: Thea von Sparr
by artist: Helmut Winschermann
in album: Bach, J.S.: Brandenburg Concertos Nos.2, 3 & 4; Orchestral Suite No.3, BWV 1068
  type: MusicAlbum
  date published: 1989-01-01
popularity: 3
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: DEF056000563
additional property: CopyrightID
additional property: CopyrightStatus
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  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
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:53:07Z
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 0x0e04347f1270327a74f59f9b09cd644cff696e1541d7bfd40dc700dfa457bcd3. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/DEF056000563.
  date published: 2026-07-30T14:53:07Z
audio: Brandenburg Concerto No. 4 in G, BWV 1049: 3. Presto
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  additional property: Musical Key
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    value: 7
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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    type: PropertyValue
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  additional property: Acousticness
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    value: 0.704
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Orchestral Suite No. 3 in D Major, BWV 1068: I. Overture
type: MusicRecording
duration: PT9M5S
duration ms: 545986
explicit: false
by artist: Johann Sebastian Bach
by artist: Münchener Bach-Orchester
by artist: Karl Richter
in album: Bach, J.S.: Brandenburg Concertos Nos.2, 3 & 4; Orchestral Suite No.3, BWV 1068
  type: MusicAlbum
  date published: 1989-01-01
popularity: 3
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: DEF056002671
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x117fc718465aef9182c0ae5fd2e4950b1f0a699569cc340791b94c32785510a0
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960327
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056002671
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26Z
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 0x117fc718465aef9182c0ae5fd2e4950b1f0a699569cc340791b94c32785510a0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056002671.
  date published: 2026-07-31T00:26:26Z
audio: Orchestral Suite No. 3 in D Major, BWV 1068: I. Overture
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  additional property: Tempo (BPM)
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  additional property: Time Signature
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    type: PropertyValue
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
type: MusicRecording
duration: PT5M42S
duration ms: 342173
explicit: false
by artist: Johann Sebastian Bach
by artist: Münchener Bach-Orchester
by artist: Karl Richter
in album: Bach, J.S.: Brandenburg Concertos Nos.2, 3 & 4; Orchestral Suite No.3, BWV 1068
  type: MusicAlbum
  date published: 1989-01-01
popularity: 30
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: DEF056002672
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T11:06:12+00:00
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/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056002672
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b662c053e58d348df192e61abfe127f284b1ccfea8c930be6efce41f3e5b68f. 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/DEF056002672.
  date published: 2026-06-13T12:53:06Z
audio: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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Orchestral Suite No. 3 in D Major, BWV 1068: III. Gavotte I-II
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by artist: Münchener Bach-Orchester
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subject of: OpenTimestamps Proof of Existence
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Orchestral Suite No. 3 in D Major, BWV 1068: IV. Bourrée
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subject of: OpenTimestamps Proof of Existence
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Bach, J.S.: Brandenburg Concerto No.1 BWV 1046; No.5 BWV 1050 & No.6 BWV 1051
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Antonio Vivaldi: Cello Works
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  subject of: OpenTimestamps Proof of Existence
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The Four Seasons
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Das italienische Settecento: Serie A. Das Konzert (Mono Version)
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Bach, Vivaldi, Handel, Corelli, Marcello: Concerto Grosso (Famous Baroque Concertos)
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The 1950s Concerto Recordings
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  subject of: OpenTimestamps Proof of Existence
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Irmgard Seefried: Essentials
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  subject of: OpenTimestamps Proof of Existence
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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
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB73Z1101539
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3a6cd8032632eca993b8fbcaa815828ca9b1611ee2c30302e84fa93104d377. 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/GB73Z1101539.
  date published: 2026-07-08T03:20:19Z
audio: Brandenburg Concerto No 4 in G Major, BWV 1049: Presto
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Violin Concerto No. 2 in E Major, BWV 1042: I. Allegro
type: MusicRecording
duration: PT8M30S
duration ms: 510186
explicit: false
by artist: Johann Sebastian Bach
by artist: Camerata Romana
by artist: Josef Brezina
in album: Bach To Work - Classical Music for Concentration and Studying Vol. 1
  type: MusicAlbum
  date published: 2015-06-09
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GB73Z1101540
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
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB73Z1101540
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T15:42:38Z
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 0xed5f7695c01f471d111521d421e155aefcf575c704ca679e096d7e5d2add82e7. 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/GB73Z1101540.
  date published: 2026-07-30T15:42:38Z
audio: Violin Concerto No. 2 in E Major, BWV 1042: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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Violin Concerto No. 2 in E Major, BWV 1042: III. Allegro assai
type: MusicRecording
duration: PT2M49S
duration ms: 169133
explicit: false
by artist: Johann Sebastian Bach
by artist: Camerata Romana
by artist: Josef Brezina
in album: Bach To Work - Classical Music for Concentration and Studying Vol. 1
  type: MusicAlbum
  date published: 2015-06-09
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GB73Z1101541
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
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB73Z1101541
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:44:50Z
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 0xa10c73d447b6dec19840b4f159170057052ce8616c8799df328daff0a224c79b. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GB73Z1101541.
  date published: 2026-07-30T14:44:50Z
audio: Violin Concerto No. 2 in E Major, BWV 1042: III. Allegro assai
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Valence (Positivity)
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Sonata for Solo Violin No. 3 in C Major, BWV 1005: 2. Fuga
type: MusicRecording
duration: PT10M54S
duration ms: 654000
explicit: false
by artist: Johann Sebastian Bach
by artist: Arthur Grumiaux
in album: Bach To Work - Classical Music for Concentration and Studying Vol. 1
  type: MusicAlbum
  date published: 2015-06-09
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GB73Z1101547
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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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/960240
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB73Z1101547
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 0xb0f4d17af7063877d58419933d68799bcc2338d707b08f1aa25d3e1a4ad8c260. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB73Z1101547.
  date published: 2026-07-30T09:57:33Z
audio: Sonata for Solo Violin No. 3 in C Major, BWV 1005: 2. Fuga
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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    type: PropertyValue
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  additional property: Energy
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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)
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    value: 0.656
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.383
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Goldberg Variations, BWV 988: Variation 1 a 1 Clav.
type: MusicRecording
duration: PT0M51S
duration ms: 51093
explicit: false
by artist: Johann Sebastian Bach
by artist: Glenn Gould
in album: Bach To Work - Classical Music for Concentration and Studying Vol. 1
  type: MusicAlbum
  date published: 2015-06-09
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GB73Z1101563
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T17:46:18+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x68404f0289624e00de9f31e6c977c9d9b31135a4cbc8093e04891c2cb4d5bcf8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960291
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960291
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB73Z1101563
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T18:23:33Z
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 0x68404f0289624e00de9f31e6c977c9d9b31135a4cbc8093e04891c2cb4d5bcf8. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB73Z1101563.
  date published: 2026-07-30T18:23:33Z
audio: Goldberg Variations, BWV 988: Variation 1 a 1 Clav.
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  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.232
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.889
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.55
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.829
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Goldberg Variations, BWV 988: Variation 5 a 1 Ovvero 2 Clav.
type: MusicRecording
duration: PT0M43S
duration ms: 43026
explicit: false
by artist: Johann Sebastian Bach
by artist: Glenn Gould
in album: Bach To Work - Classical Music for Concentration and Studying Vol. 1
  type: MusicAlbum
  date published: 2015-06-09
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GB73Z1101567
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T15:13:25+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960273
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960273
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB73Z1101567
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T15:42:38Z
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 0xa639d4353bcf3c38439e0338b6f1fc66a043d791f0925f6bbaa59ed1aa0c79b1. 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/GB73Z1101567.
  date published: 2026-07-30T15:42:38Z
audio: Goldberg Variations, BWV 988: Variation 5 a 1 Ovvero 2 Clav.
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 162.852
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.278
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  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)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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Partita for Solo Violin No. 2 in D Minor, BWV 1004: 1. Allemande
type: MusicRecording
duration: PT3M15S
duration ms: 195826
explicit: false
by artist: Johann Sebastian Bach
by artist: Arthur Grumiaux
in album: Bach To Work - Classical Music for Concentration and Studying Vol. 1
  type: MusicAlbum
  date published: 2015-06-09
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: GB73Z1101573
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T09:02:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x25b78fe0871a278667aa415c7a794f5231e02989aa271128ee86ce7ec62cda96
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960379
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960379
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB73Z1101573
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:25:34Z
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 0x25b78fe0871a278667aa415c7a794f5231e02989aa271128ee86ce7ec62cda96. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GB73Z1101573.
  date published: 2026-07-31T09:25:34Z
audio: Partita for Solo Violin No. 2 in D Minor, BWV 1004: 1. Allemande
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.51
  additional property: Musical Key
    type: PropertyValue
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Classical Music for Concentration and Studying
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BD Music Presents Vivaldi
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French Concertos: Devienne / Saint-Saëns / Ibert
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Classical Favorites (Composed By: Antonio Vivaldi)
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Realms of Gold: The Recorded Legacy of American Concert Pianist William Corbet-Jones, Vol. 1 & 2
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The Art Of Irmgard Seefried - Volume 11: Cantatas & Oratorios
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Klaviertrios
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track: Oboe Concerto No. 1 in B-Flat Major, HWV 301: II. Allegro
track: Oboe Concerto No. 1 in B-Flat Major, HWV 301: III. Siciliana. Largo
track: Oboe Concerto No. 1 in B-Flat Major, HWV 301: IV. Vivace
track: L'estro armonico, Concerto for 2 Violins in A Minor, RV 522, Op. 3 No. 8: I. Allegro
track: L'estro armonico, Concerto for 2 Violins in A Minor, RV 522, Op. 3 No. 8: II. Larghetto e spiritoso
track: L'estro armonico, Concerto for 2 Violins in A Minor, RV 522, Op. 3 No. 8: III. Allegro
track: Cello Concerto in C Major, RV 398: I. Allegro
track: Cello Concerto in C Major, RV 398: II. Largo
track: Cello Concerto in C Major, RV 398: III. Allegro
track: Concerto for Solo Keyboard No. 1 in D Major, BWV 972 (After Vivaldi, RV 230): I. [Allegro]
track: Concerto for Solo Keyboard No. 1 in D Major, BWV 972 (After Vivaldi, RV 230): II. Larghetto
track: Flute Concerto in F Major, RV 434, Op. 10 No. 5: I. Allegro
track: Flute Concerto in F Major, RV 434, Op. 10 No. 5: II. Largo e cantabile
track: Flute Concerto in F Major, RV 434, Op. 10 No. 5: III. Allegro
track: Flute Concerto in G Major, RV 435, Op. 10 No. 4: I. Allegro
track: Flute Concerto in G Major, RV 435, Op. 10 No. 4: III. Allegro
track: Flute Concerto in G Major, RV 436: I. Allegro
track: Concerto a due cori No. 2, HWV 333: 1. Pomposo
track: Brandenburg Concerto No. 1 in F Major, BWV 1046a: 1. (Allegro)

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L'estro armonico, Concerto for 2 Violins in A Minor, RV 522, Op. 3 No. 8: II. Larghetto e spiritoso
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L'estro armonico, Concerto for 2 Violins in A Minor, RV 522, Op. 3 No. 8: III. Allegro
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subject of: OpenTimestamps Proof of Existence
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Cello Concerto in C Major, RV 398: I. Allegro
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subject of: OpenTimestamps Proof of Existence
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Cello Concerto in C Major, RV 398: II. Largo
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subject of: OpenTimestamps Proof of Existence
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Cello Concerto in C Major, RV 398: III. Allegro
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Concerto for Solo Keyboard No. 1 in D Major, BWV 972 (After Vivaldi, RV 230): I. [Allegro]
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subject of: OpenTimestamps Proof of Existence
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Concerto for Solo Keyboard No. 1 in D Major, BWV 972 (After Vivaldi, RV 230): II. Larghetto
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subject of: OpenTimestamps Proof of Existence
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Flute Concerto in F Major, RV 434, Op. 10 No. 5: I. Allegro
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subject of: OpenTimestamps Proof of Existence
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Flute Concerto in F Major, RV 434, Op. 10 No. 5: II. Largo e cantabile
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Flute Concerto in F Major, RV 434, Op. 10 No. 5: III. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Flute Concerto in G Major, RV 435, Op. 10 No. 4: I. Allegro
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Flute Concerto in G Major, RV 435, Op. 10 No. 4: III. Allegro
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Flute Concerto in G Major, RV 436: I. Allegro
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Concerto a due cori No. 2, HWV 333: 1. Pomposo
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track: Cello Sonata in A Minor, Op. 14 No. 3, RV 43: I. Largo
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track: Pièces de Clavecin en Concert / Troisième Concert: 1. La La Poplinière - Rondement
track: Pièces de Clavecin en Concert / Troisième Concert: 2. La Timide (Rondeau 1 et 2) - Gracieux
track: Pièces de Clavecin en Concert / Troisième Concert: 3. 1er Et 2ème Tambourins - Vif
track: Don Quichotte - Suite: 1. Ouverture
track: Don Quichotte - Suite: 2. Le Reveil de Quixotte
track: Don Quichotte - Suite: 3. Son Attaque des Moulins à vent
track: Don Quichotte - Suite: 4. Les Soupirs amoureux après la Princess Dulcinée
track: Don Quichotte - Suite: 5. Sanche Panche berné
track: Don Quichotte - Suite: 6. Le Galope de Rosinante...VII Celui d'Ane de Sanche
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track: Brandenburg Concerto No. 2 in F, BWV 1047: 1. (Allegro)

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Concerto grosso in D, Op. 6, No. 5: 5. Allegro
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Concerto grosso in D, Op. 6, No. 5: 6. Menuet (un poco larghetto)
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Concerto grosso in D, Op. 3/1, RV 549: 1. Allegro
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Concerto grosso in D, Op. 3/1, RV 549: 2. Largo e spiccato
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Concerto grosso in D, Op. 3/1, RV 549: 3. Allegro
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Concerto in A Major for Solo Violin, Violin "per eco in lontano", Strings And Continuo, RV 552: I. Allegro
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Concerto in A Major For Solo Violin, Violin "per eco in lontano", Strings And Continuo, RV 552: II. Larghetto
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T05:43:45Z
audio: Concerto in A Major For Solo Violin, Violin "per eco in lontano", Strings And Continuo, RV 552: II. Larghetto
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Concerto in A Major For Solo Violin, Violin "per eco in lontano", Strings And Continuo, RV 552: III. Allegro
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by artist: Rudolf Baumgartner
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Concerto in A Major For Solo Violin, Violin "per eco in lontano", Strings And Continuo, RV 552: III. Allegro
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Sonata For Cello And Continuo In E Minor, R.40 - Arr. by Paul Bazelaire: 1. Large
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Sonata For Cello And Continuo In E Minor, R.40 - Arr. by Paul Bazelaire: 1. Large
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Sonata For Cello And Continuo In E Minor, R.40 - Arr. by Paul Bazelaire: 3. Lent et expressif (alla siciliana)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
audio: Sonata For Cello And Continuo In E Minor, R.40 - Arr. by Paul Bazelaire: 3. Lent et expressif (alla siciliana)
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Sonata For Cello And Continuo In E Minor, R.40 - Arr. by Paul Bazelaire: 4. Vif
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T03:35:13Z
audio: Sonata For Cello And Continuo In E Minor, R.40 - Arr. by Paul Bazelaire: 4. Vif
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Sonata For Cello And Continuo In E Minor, R.40 - Arr. by Vincent d'Indy: 2. Allègre
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Sonata For Cello And Continuo In E Minor, R.40 - Arr. by Vincent d'Indy: 2. Allègre
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Brandenburg Concerto No. 1 in F, BWV 1046: 1. (Allegro)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Brandenburg Concerto No. 1 in F, BWV 1046: 1. (Allegro)
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Brandenburg Concerto No. 1 in F, BWV 1046: 2. Adagio
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by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
by artist: Wolfgang Schneiderhan
by artist: Helmut Winschermann
by artist: Egon Parolari
by artist: W. Huniler
by artist: Cesare Esposito
by artist: Günther Schlund
by artist: H. Bouchet
in album: "Baroque Festival" - Festival Strings Lucerne
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  date published: 2025-03-13
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: DEF055903302
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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: Brandenburg Concerto No. 1 in F, BWV 1046: 2. Adagio
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Brandenburg Concerto No. 1 in F, BWV 1046: 3. Allegro
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duration: PT4M59S
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by artist: Johann Sebastian Bach
by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
by artist: Wolfgang Schneiderhan
by artist: Helmut Winschermann
by artist: Egon Parolari
by artist: W. Huniler
by artist: Cesare Esposito
by artist: Günther Schlund
by artist: H. Bouchet
in album: "Baroque Festival" - Festival Strings Lucerne
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  date published: 2025-03-13
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
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: 2026-07-08T03:20:19Z
audio: Brandenburg Concerto No. 1 in F, BWV 1046: 3. Allegro
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Brandenburg Concerto No. 1 in F, BWV 1046: 4. Menuetto mit Polacca
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duration ms: 491733
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by artist: Johann Sebastian Bach
by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
by artist: Wolfgang Schneiderhan
by artist: Helmut Winschermann
by artist: Egon Parolari
by artist: W. Huniler
by artist: Cesare Esposito
by artist: Günther Schlund
by artist: H. Bouchet
in album: "Baroque Festival" - Festival Strings Lucerne
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  date published: 2025-03-13
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
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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: 2026-07-30T12:51:24Z
audio: Brandenburg Concerto No. 1 in F, BWV 1046: 4. Menuetto mit Polacca
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Symphony No. XX in E minor: 1. Allegro staccato attacca
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duration: PT2M17S
duration ms: 137426
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by artist: Johan Helmich Roman
by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
in album: "Baroque Festival" - Festival Strings Lucerne
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genre: galante-era
genre: swedish-classical
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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
  type: DigitalDocument
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  date published: 2026-07-30T08:04:30Z
audio: Symphony No. XX in E minor: 1. Allegro staccato attacca
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Symphony No. XX in E minor: 2. Larghetto
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by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
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genre: galante-era
genre: swedish-classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-30T20:09:33Z
audio: Symphony No. XX in E minor: 2. Larghetto
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Symphony No. XX in E minor: 3. Allegro assai
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genre: galante-era
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7c662aab656194854c97b4124c0c3b6f0873091a2ecc485b71cfdf357bf735. 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/DEF056402403.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. XX in E minor: 3. Allegro assai
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Symphony No. XX in E minor: 4. Allegro
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Violin Concerto in E Major, Op. 8, No. 1, RV 269 "La primavera": I. Allegro
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Violin Concerto in E Major, Op. 8, No. 1, RV 269 "La primavera": II. Largo
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subject of: OpenTimestamps Proof of Existence
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Violin Concerto in E Major, Op. 8, No. 1, RV 269 "La primavera": III. Allegro. Danza pastorale
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Violin Concerto in G Minor, Op. 8, No. 2, RV 315 "L'estate": I. Allegro non molto - Allegro
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Violin Concerto in G Minor, Op. 8, No. 2, RV 315 "L'estate": II. Adagio - Presto - Adagio
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Violin Concerto in G Minor, Op. 8, No. 2, RV 315 "L'estate": III. Presto. Tempo impetuoso d'estate
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Violin Concerto in F Major, Op. 8, No. 3, RV 293 "L'autunno": I. Allegro. Ballo, e canto de' villanelli
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Violin Concerto in F Major, Op. 8, No. 3, RV 293 "L'autunno": II. Adagio molto. Ubriachi dormienti
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Violin Concerto in F Major, Op. 8, No. 3, RV 293 "L'autunno": III. Allegro. La caccia
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Violin Concerto in F Minor, Op. 8, No. 4, RV 297 "L'inverno": I. Allegro non molto
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Violin Concerto in F Minor, Op. 8, No. 4, RV 297 "L'inverno": II. Largo
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Violin Concerto in F Minor, Op. 8, No. 4, RV 297 "L'inverno": III. Allegro
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Pièces de Clavecin en Concert / Troisième Concert: 1. La La Poplinière - Rondement
type: MusicRecording
duration: PT3M8S
duration ms: 188000
explicit: false
by artist: Jean-Philippe Rameau
by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
in album: "Baroque Festival" - Festival Strings Lucerne
  type: MusicAlbum
  date published: 2025-03-13
isrc code: DEF055803701
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T10:32:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1364443098de3d579032f9bc67c3a93f66257a802631e65f2f75cee39875fe56
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
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/DEF055803701
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1364443098de3d579032f9bc67c3a93f66257a802631e65f2f75cee39875fe56. 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/DEF055803701.
  date published: 2026-07-08T03:20:19Z
audio: Pièces de Clavecin en Concert / Troisième Concert: 1. La La Poplinière - Rondement
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.467
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.331
  additional property: Energy
    type: PropertyValue
    value: 0.079
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.755
  additional property: Liveness
    type: PropertyValue
    value: 0.077
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.397
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.552
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Pièces de Clavecin en Concert / Troisième Concert: 2. La Timide (Rondeau 1 et 2) - Gracieux
type: MusicRecording
duration: PT5M24S
duration ms: 324000
explicit: false
by artist: Jean-Philippe Rameau
by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
in album: "Baroque Festival" - Festival Strings Lucerne
  type: MusicAlbum
  date published: 2025-03-13
isrc code: DEF055803702
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:04:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1cb86442e0cece481132777dea626ffe67b4f0d1ca628ef6507c453afd0fdc12
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
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/DEF055803702
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb86442e0cece481132777dea626ffe67b4f0d1ca628ef6507c453afd0fdc12. 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/DEF055803702.
  date published: 2026-07-08T03:20:19Z
audio: Pièces de Clavecin en Concert / Troisième Concert: 2. La Timide (Rondeau 1 et 2) - Gracieux
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.358
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.271
  additional property: Energy
    type: PropertyValue
    value: 0.093
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.954
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.878
  additional property: Liveness
    type: PropertyValue
    value: 0.168
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.263
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.63
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Pièces de Clavecin en Concert / Troisième Concert: 3. 1er Et 2ème Tambourins - Vif
type: MusicRecording
duration: PT2M19S
duration ms: 139000
explicit: false
by artist: Jean-Philippe Rameau
by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
in album: "Baroque Festival" - Festival Strings Lucerne
  type: MusicAlbum
  date published: 2025-03-13
isrc code: DEF055803703
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T10:35:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3677370bdb69fe0af218d3125f1b2fa8d13f924a51731aaa4a91203690220111
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
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/DEF055803703
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3677370bdb69fe0af218d3125f1b2fa8d13f924a51731aaa4a91203690220111. 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/DEF055803703.
  date published: 2026-07-08T03:20:19Z
audio: Pièces de Clavecin en Concert / Troisième Concert: 3. 1er Et 2ème Tambourins - Vif
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 158.002
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.495
  additional property: Energy
    type: PropertyValue
    value: 0.294
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.934
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.937
  additional property: Liveness
    type: PropertyValue
    value: 0.068
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.687
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.989
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Don Quichotte - Suite: 1. Ouverture
type: MusicRecording
duration: PT3M46S
duration ms: 226000
explicit: false
by artist: Georg Philipp Telemann
by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
in album: "Baroque Festival" - Festival Strings Lucerne
  type: MusicAlbum
  date published: 2025-03-13
isrc code: DEF055803691
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T00:32:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x457e378f01daf3ac396ffcfe418c030aa30463535b70ce7779388882f775302f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960334
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960334
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055803691
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15Z
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 0x457e378f01daf3ac396ffcfe418c030aa30463535b70ce7779388882f775302f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEF055803691.
  date published: 2026-07-31T02:19:15Z
audio: Don Quichotte - Suite: 1. Ouverture
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.229
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.499
  additional property: Energy
    type: PropertyValue
    value: 0.197
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.905
  additional property: Liveness
    type: PropertyValue
    value: 0.159
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.464
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.431
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Don Quichotte - Suite: 2. Le Reveil de Quixotte
type: MusicRecording
duration: PT1M30S
duration ms: 90000
explicit: false
by artist: Georg Philipp Telemann
by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
in album: "Baroque Festival" - Festival Strings Lucerne
  type: MusicAlbum
  date published: 2025-03-13
isrc code: DEF055803692
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:35:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ab6292400bb2cc27efd30884ea2999d89fb6850f8583455b14d6b6d1e893e98
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
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/DEF055803692
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab6292400bb2cc27efd30884ea2999d89fb6850f8583455b14d6b6d1e893e98. 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/DEF055803692.
  date published: 2026-07-08T03:20:19Z
audio: Don Quichotte - Suite: 2. Le Reveil de Quixotte
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.981
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.71
  additional property: Energy
    type: PropertyValue
    value: 0.011
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.005
  additional property: Liveness
    type: PropertyValue
    value: 0.073
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.478
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.511
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Don Quichotte - Suite: 3. Son Attaque des Moulins à vent
type: MusicRecording
duration: PT1M24S
duration ms: 84000
explicit: false
by artist: Georg Philipp Telemann
by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
in album: "Baroque Festival" - Festival Strings Lucerne
  type: MusicAlbum
  date published: 2025-03-13
isrc code: DEF055803693
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa1de6e3641870e007d6e548a932c4486addf583315102783a6b70dc74367cce6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960362
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960362
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055803693
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T06:58:00Z
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 0xa1de6e3641870e007d6e548a932c4486addf583315102783a6b70dc74367cce6. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055803693.
  date published: 2026-07-31T06:58:00Z
audio: Don Quichotte - Suite: 3. Son Attaque des Moulins à vent
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.106
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.487
  additional property: Energy
    type: PropertyValue
    value: 0.429
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.941
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.967
  additional property: Liveness
    type: PropertyValue
    value: 0.401
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.97
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.913
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Don Quichotte - Suite: 4. Les Soupirs amoureux après la Princess Dulcinée
type: MusicRecording
duration: PT2M19S
duration ms: 139000
explicit: false
by artist: Georg Philipp Telemann
by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
in album: "Baroque Festival" - Festival Strings Lucerne
  type: MusicAlbum
  date published: 2025-03-13
isrc code: DEF055803694
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T13:36:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x26d22ca565290b4f96103002ab4d9bff16b383eb4156a6114498918678794d49
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960410
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960410
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055803694
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:50:38Z
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 0x26d22ca565290b4f96103002ab4d9bff16b383eb4156a6114498918678794d49. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/DEF055803694.
  date published: 2026-07-31T13:50:38Z
audio: Don Quichotte - Suite: 4. Les Soupirs amoureux après la Princess Dulcinée
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.806
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.392
  additional property: Energy
    type: PropertyValue
    value: 0.042
  additional property: Speechiness
    type: PropertyValue
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Don Quichotte - Suite: 5. Sanche Panche berné
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duration ms: 82000
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by artist: Georg Philipp Telemann
by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
in album: "Baroque Festival" - Festival Strings Lucerne
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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: 2026-07-30T22:27:30Z
audio: Don Quichotte - Suite: 5. Sanche Panche berné
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Don Quichotte - Suite: 6. Le Galope de Rosinante...VII Celui d'Ane de Sanche
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duration: PT2M19S
duration ms: 139000
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by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
in album: "Baroque Festival" - Festival Strings Lucerne
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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: 2026-07-31T06:42:11Z
audio: Don Quichotte - Suite: 6. Le Galope de Rosinante...VII Celui d'Ane de Sanche
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Don Quichotte - Suite: 8. Le couche de Quixotte
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by artist: Georg Philipp Telemann
by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
in album: "Baroque Festival" - Festival Strings Lucerne
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  date published: 2025-03-13
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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: 2026-07-31T06:42:11Z
audio: Don Quichotte - Suite: 8. Le couche de Quixotte
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Violin Concerto No. 2 in E, BWV 1042: 1. Allegro
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duration: PT8M37S
duration ms: 517653
explicit: false
by artist: Johann Sebastian Bach
by artist: Wolfgang Schneiderhan
by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
in album: "Baroque Festival" - Festival Strings Lucerne
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  date published: 2025-03-13
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
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: 2026-07-30T17:23:26Z
audio: Violin Concerto No. 2 in E, BWV 1042: 1. Allegro
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Violin Concerto No. 2 in E, BWV 1042: 2. Adagio
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duration: PT6M58S
duration ms: 418600
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by artist: Johann Sebastian Bach
by artist: Wolfgang Schneiderhan
by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
in album: "Baroque Festival" - Festival Strings Lucerne
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  date published: 2025-03-13
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
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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: 2026-07-31T00:26:26Z
audio: Violin Concerto No. 2 in E, BWV 1042: 2. Adagio
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Violin Concerto No. 2 in E, BWV 1042: 3. Allegro assai
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duration ms: 178226
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by artist: Johann Sebastian Bach
by artist: Wolfgang Schneiderhan
by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
in album: "Baroque Festival" - Festival Strings Lucerne
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  date published: 2025-03-13
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
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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: 2026-07-31T12:24:41Z
audio: Violin Concerto No. 2 in E, BWV 1042: 3. Allegro assai
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Brandenburg Concerto No. 2 in F, BWV 1047: 1. (Allegro)
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duration: PT5M19S
duration ms: 319000
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by artist: Johann Sebastian Bach
by artist: Festival Strings Lucerne
by artist: Rudolf Baumgartner
by artist: Adolf Scherbaum
by artist: Hans-Martin Linde
by artist: Thea von Sparr
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  date published: 2025-03-13
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
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additional property: OTSVerificationAPI
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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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa542abdc5a3653b57fd9a7a9036f57e96ab37b256b30583e5374110b83ea8fa3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056000541.
  date published: 2026-07-31T00:26:26Z
audio: Brandenburg Concerto No. 2 in F, BWV 1047: 1. (Allegro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 174.015
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.464
  additional property: Energy
    type: PropertyValue
    value: 0.408
  additional property: Speechiness
    type: PropertyValue
    value: 0.061
  additional property: Acousticness
    type: PropertyValue
    value: 0.842
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.403
  additional property: Liveness
    type: PropertyValue
    value: 0.15
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.843
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.591
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major