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subject of: OpenTimestamps Proof of Existence
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Sonata No. 4 for Violin and Harpsichord in C Minor, Bwv 1017: I. Siciliano: Largo
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Keyboard Concerto in F Minor, Bwv 1056: Ii. Largo
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duration: PT2M57S
duration ms: 177840
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by artist: Johann Sebastian Bach
by artist: Harald Hoeren
by artist: Cologne Chamber Orchestra
by artist: Helmut Müller-Brühl
in album: Bach For Study
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  date published: 2021-12-17
popularity: 1
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
audio: Keyboard Concerto in F Minor, Bwv 1056: Ii. Largo
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Flute Sonata in A Major, Bwv 1032: Ii. Largo e dolce
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duration: PT3M23S
duration ms: 203000
explicit: false
by artist: Johann Sebastian Bach
by artist: Petri Alanko
by artist: Anssi Mattila
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  type: MusicAlbum
  date published: 2021-12-17
popularity: 1
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
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additional property: CopyrightID
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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: 2026-07-31T08:38:45Z
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Violin Sonata No. 3 in C Major, Bwv 1005: Iii. Largo
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duration: PT3M49S
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explicit: false
by artist: Johann Sebastian Bach
by artist: Ilya Kaler
in album: Bach For Study
  type: MusicAlbum
  date published: 2021-12-17
popularity: 1
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Violin Sonata No. 3 in C Major, Bwv 1005: Iii. Largo
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Brandenburg Concerto No. 1 in F Major, Bwv 1046 (arr. E. Bindman for piano 4 hands): Ii. Adagio
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duration: PT3M30S
duration ms: 210986
explicit: false
by artist: Johann Sebastian Bach
by artist: Eleonor Bindman
by artist: Jenny Lin
in album: Bach For Study
  type: MusicAlbum
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popularity: 1
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: 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: 2026-07-08T03:20:19Z
audio: Brandenburg Concerto No. 1 in F Major, Bwv 1046 (arr. E. Bindman for piano 4 hands): Ii. Adagio
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Concerto for 2 Violins in D Minor, Bwv 1043: Ii. Largo ma non tanto
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duration: PT6M51S
duration ms: 411266
explicit: false
by artist: Johann Sebastian Bach
by artist: Takako Nishizaki
by artist: Alexander Jablokov
by artist: Capella Istropolitana
by artist: Oliver von Dohnanyi
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  date published: 2021-12-17
popularity: 1
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
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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: 2026-07-08T03:20:19Z
audio: Concerto for 2 Violins in D Minor, Bwv 1043: Ii. Largo ma non tanto
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Cello Suite No. 1 in G Major, Bwv 1007: I. Prelude
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popularity: 1
genre: classical
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genre: early-music
genre: baroque
genre: chamber-music
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-08T03:20:19Z
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Partita No. 2 in C Minor, Bwv 826: Iv. Sarabande
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popularity: 1
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genre: early-music
genre: baroque
genre: chamber-music
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cabc799c2b6233182bf4481c2a8ed919304d71fef7a4f6268d15356da0ab10. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199279110 — a six-check JSON result.
  date published: 2026-07-31T13:04:34Z
audio: Partita No. 2 in C Minor, Bwv 826: Iv. Sarabande
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W.A. Mozart: Complete Masses, Vol. 1
type: MusicAlbum
date published: 2021-09-24
track: Mass No. 13 in C Major, K. 262 "Missa longa": I. Kyrie
  type: MusicRecording
  duration: PT3M12S
  duration ms: 192533
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Carolina Ullrich
  by artist: Marie Henriette Reinhold
  by artist: Angelo Pollak
  by artist: Konstantin Krimmel
  by artist: WDR Rundfunkchor Köln
  by artist: Cologne Chamber Orchestra
  by artist: Christoph Poppen
  in album: W.A. Mozart: Complete Masses, Vol. 1
    type: MusicAlbum
    date published: 2021-09-24
  popularity: 1
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
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    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI192045701
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  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 0xb1b3eb982c9fa8e7fe00718cf6b51b79cbf2b91d5891a7f10b2227a9859f401e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI192045701 — a six-check JSON result.
    date published: 2026-07-08T03:22:41Z
  audio: Mass No. 13 in C Major, K. 262 "Missa longa": I. Kyrie
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track: Mass No. 13 in C Major, K. 262 "Missa longa": II. Gloria
  type: MusicRecording
  duration: PT5M50S
  duration ms: 350093
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Carolina Ullrich
  by artist: Marie Henriette Reinhold
  by artist: Angelo Pollak
  by artist: Konstantin Krimmel
  by artist: WDR Rundfunkchor Köln
  by artist: Cologne Chamber Orchestra
  by artist: Christoph Poppen
  in album: W.A. Mozart: Complete Masses, Vol. 1
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    date published: 2021-09-24
  popularity: 1
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
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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/HKI192045702
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10cf87460261e2a1879b865f8956700aa3d18a79876885c7dcc858fff40e5004. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI192045702 — a six-check JSON result.
    date published: 2026-07-31T23:30:38Z
  audio: Mass No. 13 in C Major, K. 262 "Missa longa": II. Gloria
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track: Mass No. 13 in C Major, K. 262 "Missa longa": III. Credo
track: Mass No. 16 in C Major, K. 317 "Coronation": I. Kyrie
track: Mass No. 16 in C Major, K. 317 "Coronation": II. Gloria

Mass No. 13 in C Major, K. 262 "Missa longa": III. Credo
type: MusicRecording
duration: PT11M34S
duration ms: 694186
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Carolina Ullrich
by artist: Marie Henriette Reinhold
by artist: Angelo Pollak
by artist: Konstantin Krimmel
by artist: WDR Rundfunkchor Köln
by artist: Cologne Chamber Orchestra
by artist: Christoph Poppen
in album: W.A. Mozart: Complete Masses, Vol. 1
  type: MusicAlbum
  date published: 2021-09-24
popularity: 0
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: HKI192045703
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/HKI192045703
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd005ba6929126cb08e6368462d2b2d6cf0fedbe813986643999e17ab250ca9fe. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI192045703 — a six-check JSON result.
  date published: 2026-08-01T01:44:32Z
audio: Mass No. 13 in C Major, K. 262 "Missa longa": III. Credo
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Mass No. 16 in C Major, K. 317 "Coronation": I. Kyrie
type: MusicRecording
duration: PT2M44S
duration ms: 164373
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Carolina Ullrich
by artist: Angelo Pollak
by artist: WDR Rundfunkchor Köln
by artist: Cologne Chamber Orchestra
by artist: Christoph Poppen
in album: W.A. Mozart: Complete Masses, Vol. 1
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  date published: 2021-09-24
popularity: 0
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: HKI192045707
additional property: CopyrightID
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additional property: CopyrightChainExplorerURL
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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: 2026-07-31T21:25:57Z
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Mass No. 16 in C Major, K. 317 "Coronation": II. Gloria
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duration: PT4M43S
duration ms: 283200
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Carolina Ullrich
by artist: Marie Henriette Reinhold
by artist: Angelo Pollak
by artist: Konstantin Krimmel
by artist: WDR Rundfunkchor Köln
by artist: Cologne Chamber Orchestra
by artist: Christoph Poppen
in album: W.A. Mozart: Complete Masses, Vol. 1
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popularity: 0
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
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additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-08-01T00:40:43Z
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Bach For Meditation
type: MusicAlbum
date published: 2022-07-22

Bach For Relaxation
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Bach For Study
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date published: 2021-12-17

Bach For Meditation
type: MusicAlbum
date published: 2021-11-26

Peaceful Bach
type: MusicAlbum
date published: 2021-10-22

Relaxing Bach
type: MusicAlbum
date published: 2021-10-15

Overture (Suite) No. 3 in D Major, BWV 1068: Suite No. 3 in D Major, BWV 1068: Air, "Air on a G String"
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by artist: Cologne Chamber Orchestra
by artist: Helmut Müller-Brühl
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  date published: 2003-09-01
popularity: 9
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0382242ac8182259c2398d357dab3278520f46cf8576c8bc4bda5aefa7c5f8dd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199911316 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Overture (Suite) No. 3 in D Major, BWV 1068: Suite No. 3 in D Major, BWV 1068: Air, "Air on a G String"
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  additional property: Tempo (BPM)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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    value: 0.709
  additional property: Liveness
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  additional property: Valence (Positivity)
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    value: 0.068
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.439
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  additional property: Mode Name
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    value: Minor

Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
type: MusicRecording
duration: PT1M25S
duration ms: 85040
explicit: false
by artist: Johann Sebastian Bach
by artist: Cologne Chamber Orchestra
by artist: Helmut Müller-Brühl
in album: Classical Music - 50 of the Best
  type: MusicAlbum
  date published: 2011-09-20
popularity: 7
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: HKI199911314
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T09:30:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbff6a67be4582ac7c93f9ba9b6ad7d1351706e8c945dd95aa67a75894177a868
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 957032
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957032
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199911314
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T11:43:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff6a67be4582ac7c93f9ba9b6ad7d1351706e8c945dd95aa67a75894177a868. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199911314 — a six-check JSON result.
  date published: 2026-07-07T11:43:09Z
audio: Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.005
  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.464
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.323
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
type: MusicRecording
duration: PT3M20S
duration ms: 200520
explicit: false
by artist: Johann Sebastian Bach
by artist: Cologne Chamber Orchestra
by artist: Helmut Müller-Brühl
in album: Chill With Bach
  type: MusicAlbum
  date published: 2003-09-01
popularity: 7
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: HKI199911106
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T04:39:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa5d4e6ccb8ba4fc44cc73fc1967a26c1223a73a3b3f8353d9986bea23e60f75e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956891
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956891
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199911106
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:16:32Z
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 0xa5d4e6ccb8ba4fc44cc73fc1967a26c1223a73a3b3f8353d9986bea23e60f75e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199911106 — a six-check JSON result.
  date published: 2026-07-06T07:16:32Z
audio: Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 93.704
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.265
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.145
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.019
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Overture (Suite) No. 2 in B Minor, BWV 1067: III. Sarabande
type: MusicRecording
duration: PT3M0S
duration ms: 180000
explicit: false
by artist: Johann Sebastian Bach
by artist: Cologne Chamber Orchestra
by artist: Helmut Müller-Brühl
in album: Chill With Bach
  type: MusicAlbum
  date published: 2003-09-01
popularity: 7
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: HKI199911310
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb46cb83a1cf956d60914596b638416ac1e8c6f2a0e1a552d38aaf1fd4abc8b36
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959128
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959128
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199911310
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T12:33:25Z
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 0xb46cb83a1cf956d60914596b638416ac1e8c6f2a0e1a552d38aaf1fd4abc8b36. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199911310 — a six-check JSON result.
  date published: 2026-07-22T12:33:25Z
audio: Overture (Suite) No. 2 in B Minor, BWV 1067: III. Sarabande
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.225
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.174
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.922
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
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Piano Concerto No. 21 in C Major, K. 467 "Elvira Madigan": II. Andante
type: MusicRecording
duration: PT6M7S
duration ms: 367600
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Helmut Müller-Brühl
by artist: Evgeni Koroliov
by artist: Cologne Chamber Orchestra
in album: Relaxing Classical Music for Work
  type: MusicAlbum
  date published: 2021-08-28
popularity: 7
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: SEWDL0731005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T18:24:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x10af01334a77e5ec7c5ba560eaef111dbba78b6a61dcb85281c1657ad6390803
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957011
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957011
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0731005
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T08:25:35Z
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 0x10af01334a77e5ec7c5ba560eaef111dbba78b6a61dcb85281c1657ad6390803. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0731005 — a six-check JSON result.
  date published: 2026-07-07T08:25:35Z
audio: Piano Concerto No. 21 in C Major, K. 467 "Elvira Madigan": II. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 190.068
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.167
  additional property: Energy
    type: PropertyValue
    value: 0.029
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.89
  additional property: Liveness
    type: PropertyValue
    value: 0.096
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.094
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.076
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Overture (Suite) No. 3 in D Major, BWV 1068: II. Air, "Air on a G String"
type: MusicRecording
duration: PT4M58S
duration ms: 298946
explicit: false
by artist: Johann Sebastian Bach
by artist: Cologne Chamber Orchestra
by artist: Helmut Müller-Brühl
in album: Bach For Meditation (Swedish Edition)
  type: MusicAlbum
  date published: 2004-01-01
popularity: 6
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: HKI190911316
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T03:06:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x617f299753dda36b52e6d632feb00a5328fd70cb1a72b3626c1e8dfe71afaffd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960203
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960203
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190911316
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T03:35:13Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617f299753dda36b52e6d632feb00a5328fd70cb1a72b3626c1e8dfe71afaffd. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190911316 — a six-check JSON result.
  date published: 2026-07-30T03:35:13Z
audio: Overture (Suite) No. 3 in D Major, BWV 1068: II. Air, "Air on a G String"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.831
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.174
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.065
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.962
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Overture (Suite) No. 2 in B Minor, BWV 1067: III. Sarabande
type: MusicRecording
duration: PT2M56S
duration ms: 176946
explicit: false
by artist: Johann Sebastian Bach
by artist: Cologne Chamber Orchestra
by artist: Helmut Müller-Brühl
in album: Bach for Meditation
  type: MusicAlbum
  date published: 2005-01-01
popularity: 6
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: HKI199911310
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb46cb83a1cf956d60914596b638416ac1e8c6f2a0e1a552d38aaf1fd4abc8b36
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960199
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960199
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199911310
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T02:30:29Z
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 0xb46cb83a1cf956d60914596b638416ac1e8c6f2a0e1a552d38aaf1fd4abc8b36. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199911310 — a six-check JSON result.
  date published: 2026-07-30T02:30:29Z
audio: Overture (Suite) No. 2 in B Minor, BWV 1067: III. Sarabande
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.58
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
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  additional property: Instrumentalness
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Overture (Suite) No. 3 in D Major, BWV 1068: Suite No. 3 in D Major, BWV 1068: Air, "Air on a G String"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
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Violin Concerto in E Major, BWV 1042: II. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
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Brandenburg Concerto No. 3 in G Major, BWV 1048: 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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Piano Concerto No. 21 in C Major, K. 467 "Elvira Madigan": II. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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Concerto for Oboe and Violin in C Minor, BWV 1060: II. Adagio
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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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Brandenburg Concerto No. 4 in G Major, BWV 1049: II. Andante
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subject of: OpenTimestamps Proof of Existence
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Keyboard Concerto in F Minor, BWV 1056: Harpsichord Concerto in F Minor, BWV 1056: II. Largo
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1922d6288abbd844bcbe58e2ed08393e75764e9f54a7cf1673d6925a76eeb5c2. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190910811 — a six-check JSON result.
  date published: 2026-07-31T08:38:45Z
audio: Keyboard Concerto in F Minor, BWV 1056: Harpsichord Concerto in F Minor, BWV 1056: II. Largo
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Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
type: MusicRecording
duration: PT4M46S
duration ms: 286346
explicit: false
by artist: Johann Sebastian Bach
by artist: Cologne Chamber Orchestra
by artist: Helmut Müller-Brühl
in album: Bach For Meditation (Swedish Edition)
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  date published: 2004-01-01
popularity: 2
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46ad32d02c7da769f4c62b1f148a2f183888b03ffd0f208867b11507d3491b5. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199911112 — a six-check JSON result.
  date published: 2026-07-30T19:42:40Z
audio: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
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Concerto for 2 Violins in D Minor, BWV 1043: II. Largo ma non tanto
type: MusicRecording
duration: PT6M28S
duration ms: 388706
explicit: false
by artist: Johann Sebastian Bach
by artist: Christine Pichlmeier
by artist: Lisa Stewart
by artist: Cologne Chamber Orchestra
by artist: Helmut Müller-Brühl
in album: Bach For Meditation (Swedish Edition)
  type: MusicAlbum
  date published: 2004-01-01
popularity: 2
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: HKI199910711
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549fe9b8fe3b2c09b7714b458419f3fc2587981208d0911c8c870913fde63ca2. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199910711 — a six-check JSON result.
  date published: 2026-07-30T21:35:24Z
audio: Concerto for 2 Violins in D Minor, BWV 1043: II. Largo ma non tanto
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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