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genre: choral
genre: opera
genre: requiem
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album: Sibelius: Kullervo, Op. 7
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album: Ries: Der Sieg des Glaubens, Op. 157
  type: MusicAlbum
  date published: 2013-03-22
album: Lehár: Giuditta (Live)
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album: The Essential Warsaw Philharmonic Orchestra
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album: Naumann: Aci e Galatea
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album: Dvořák: Requiem, Op. 89
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      date published: 2026-06-13T15:41:10Z
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      date published: 2026-07-13T07:53:33Z
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  track: Requiem, Op. 89 B. 165: Offertorium: Domine Jesu Christe (Vocal Quartet, Chorus)
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  track: Requiem, Op. 89 B. 165: Sequentia: Lacrimosa (Vocal Quartet, Chorus)
album: Classical Chillout: Choral, Vol. 1
album: Fall: Die Dollarprinzessin (Live)
album: Wagner, R.: Der Fliegende Hollander
album: Czech Classical Masterpieces
album: Kienzl: Lieder, Vol. 1
album: Wagner: Das Liebesverbot
album: The Best of Antoni Wit
album: Schumann: Die Orange und Myrthe hier
album: Brahms: Ein deutsches Requiem
album: Berg: Der Wein
album: Berg: Altenberg Lieder
album: Ring Odyssey
album: Richard Strauss: Complete Works for Voice & Piano
album: Wagner: Rienzi
album: Janacek: Glagolitic Mass - Sinfonietta
album: Schumann: Scenes from Goethe's Faust
album: Sibelius: Luonnotar, Op.70

Requiem, Op. 89 B. 165: Introitus: Requiem aeternam - Kyrie (Vocal Quartet, Chorus)
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Requiem, Op. 89 B. 165: Graduale: Requiem aeternam (Soprano, Chorus)
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  date published: 2026-07-13T07:53:33Z
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Requiem, Op. 89 B. 165: Sanctus (Vocal Quartet, Chorus)
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Requiem, Op. 89 B. 165: Sequentia: Quid sum miser (Vocal Quartet, Chorus)
type: MusicRecording
duration: PT6M20S
duration ms: 380626
explicit: false
by artist: Antonín Dvořák
by artist: Christiane Libor
by artist: Ewa Wolak
by artist: Daniel Kirch
by artist: Janusz Monarcha
by artist: Chór Filharmonii Narodowej w Warszawie
by artist: Orkiestra Filharmonii Narodowej w Warszawie
by artist: Antoni Wit
in album: Dvořák: Requiem, Op. 89
  type: MusicAlbum
  date published: 2014-11-04
genre: classical
genre: late-romantic-era
genre: czech-classical
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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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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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 0x6f94927b8c6fb2c3882421276a6b279d6831ae5bc64990f396e50f64da2adb43. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/HKI191413605.
  date published: 2026-07-07T18:39:05Z
audio: Requiem, Op. 89 B. 165: Sequentia: Quid sum miser (Vocal Quartet, Chorus)
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Requiem, Op. 89 B. 165: Offertorium: Domine Jesu Christe (Vocal Quartet, Chorus)
type: MusicRecording
duration: PT12M10S
duration ms: 730973
explicit: false
by artist: Antonín Dvořák
by artist: Christiane Libor
by artist: Ewa Wolak
by artist: Daniel Kirch
by artist: Janusz Monarcha
by artist: Chór Filharmonii Narodowej w Warszawie
by artist: Orkiestra Filharmonii Narodowej w Warszawie
by artist: Antoni Wit
in album: Dvořák: Requiem, Op. 89
  type: MusicAlbum
  date published: 2014-11-04
genre: classical
genre: late-romantic-era
genre: czech-classical
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b3b73d089ede8faee8ef7f3db99a7d8c49a3cb90aa069c480e28cbe6c51c54. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/HKI191413701.
  date published: 2026-07-30T09:58:01Z
audio: Requiem, Op. 89 B. 165: Offertorium: Domine Jesu Christe (Vocal Quartet, Chorus)
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isrc code: HKI191413701
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: ContentHash
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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

Requiem, Op. 89 B. 165: Offertorium: Hostias (Vocal Quartet, Chorus)
type: MusicRecording
duration: PT11M49S
duration ms: 709026
explicit: false
by artist: Antonín Dvořák
by artist: Christiane Libor
by artist: Ewa Wolak
by artist: Daniel Kirch
by artist: Janusz Monarcha
by artist: Chór Filharmonii Narodowej w Warszawie
by artist: Orkiestra Filharmonii Narodowej w Warszawie
by artist: Antoni Wit
in album: Dvořák: Requiem, Op. 89
  type: MusicAlbum
  date published: 2014-11-04
genre: classical
genre: late-romantic-era
genre: czech-classical
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf560089ea916f96495f1627330ced8b4e59efb6e0369c5106c6b93c4d9722063. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191413702.
  date published: 2026-07-30T03:35:13Z
audio: Requiem, Op. 89 B. 165: Offertorium: Hostias (Vocal Quartet, Chorus)
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isrc code: HKI191413702
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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

Requiem, Op. 89 B. 165: Pie Jesu (Vocal Quartet, Chorus)
type: MusicRecording
duration: PT5M31S
duration ms: 331066
explicit: false
by artist: Antonín Dvořák
by artist: Christiane Libor
by artist: Ewa Wolak
by artist: Daniel Kirch
by artist: Janusz Monarcha
by artist: Chór Filharmonii Narodowej w Warszawie
by artist: Orkiestra Filharmonii Narodowej w Warszawie
by artist: Antoni Wit
in album: Dvořák: Requiem, Op. 89
  type: MusicAlbum
  date published: 2014-11-04
genre: classical
genre: late-romantic-era
genre: czech-classical
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38592101cab8a0d88aa8b832a47ab3e725c79f60d7704069d30eca90bd7f27e. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191413704.
  date published: 2026-07-30T05:43:45Z
audio: Requiem, Op. 89 B. 165: Pie Jesu (Vocal Quartet, Chorus)
  type: AudioObject
  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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isrc code: HKI191413704
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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

Requiem, Op. 89 B. 165: Agnus Dei (Vocal Quartet, Chorus)
type: MusicRecording
duration: PT10M55S
duration ms: 655053
explicit: false
by artist: Antonín Dvořák
by artist: Christiane Libor
by artist: Ewa Wolak
by artist: Daniel Kirch
by artist: Janusz Monarcha
by artist: Chór Filharmonii Narodowej w Warszawie
by artist: Orkiestra Filharmonii Narodowej w Warszawie
by artist: Antoni Wit
in album: Dvořák: Requiem, Op. 89
  type: MusicAlbum
  date published: 2014-11-04
genre: classical
genre: late-romantic-era
genre: czech-classical
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f650a3fb56fe1c688b3ad537322defa48b2986593184540697df5d24adbe18. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/HKI191413705.
  date published: 2026-07-29T21:09:47Z
audio: Requiem, Op. 89 B. 165: Agnus Dei (Vocal Quartet, Chorus)
  type: AudioObject
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  additional property: Acousticness
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isrc code: HKI191413705
additional property: CopyrightID
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additional property: TokenDeploymentConfirmed
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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

Requiem, Op. 89 B. 165: Sequentia: Recordare, Jesu Pie (Vocal Quartet)
type: MusicRecording
duration: PT7M8S
duration ms: 428093
explicit: false
by artist: Antonín Dvořák
by artist: Christiane Libor
by artist: Ewa Wolak
by artist: Daniel Kirch
by artist: Janusz Monarcha
by artist: Orkiestra Filharmonii Narodowej w Warszawie
by artist: Antoni Wit
in album: Dvořák: Requiem, Op. 89
  type: MusicAlbum
  date published: 2014-11-04
genre: classical
genre: late-romantic-era
genre: czech-classical
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71aa7aa0717f37a5c9b09156f9f0044907a1b06d5df513bb3f7aee1e832114d8. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/HKI191413606.
  date published: 2026-07-30T01:32:48Z
audio: Requiem, Op. 89 B. 165: Sequentia: Recordare, Jesu Pie (Vocal Quartet)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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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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  additional property: Liveness
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  additional property: Valence (Positivity)
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isrc code: HKI191413606
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
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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: 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

Requiem, Op. 89 B. 165: Sequentia: Lacrimosa (Vocal Quartet, Chorus)
type: MusicRecording
duration: PT6M33S
duration ms: 393946
explicit: false
by artist: Antonín Dvořák
by artist: Christiane Libor
by artist: Ewa Wolak
by artist: Daniel Kirch
by artist: Janusz Monarcha
by artist: Chór Filharmonii Narodowej w Warszawie
by artist: Orkiestra Filharmonii Narodowej w Warszawie
by artist: Antoni Wit
in album: Dvořák: Requiem, Op. 89
  type: MusicAlbum
  date published: 2014-11-04
genre: classical
genre: late-romantic-era
genre: czech-classical
subject of: OpenTimestamps Proof of Existence
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Die Walküre, WWV 86B, Act I: Spring Follows the Winter Storm - Siegmund Acquires His Name and Sword (Reworked by Joseph Swensen)
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  date published: 2026-07-07T14:50:41Z
audio: Die Walküre, WWV 86B, Act I: Spring Follows the Winter Storm - Siegmund Acquires His Name and Sword (Reworked by Joseph Swensen)
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Siegfried, WWV 86C, Act III: "Ewig war ich" - Brünnhilde Accepts Siegfried’s Love and Renounces the Glory of the Gods (Reworked by Joseph Swensen)
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  date published: 2026-07-31T00:26:26Z
audio: Siegfried, WWV 86C, Act III: "Ewig war ich" - Brünnhilde Accepts Siegfried’s Love and Renounces the Glory of the Gods (Reworked by Joseph Swensen)
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Götterdämmerung, WWV 86D, Prologue: Love Duet No. 2 - Siegfried’s Flight into the Wilderness (Reworked by Joseph Swensen)
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  date published: 2026-07-31T00:26:26Z
audio: Götterdämmerung, WWV 86D, Prologue: Love Duet No. 2 - Siegfried’s Flight into the Wilderness (Reworked by Joseph Swensen)
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Die Walküre, WWV 86B, Act I: Love Duet No. 1 - The Incestuous Tryst of Sieglinde and Siegmund (Reworked by Joseph Swensen)
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  date published: 2026-07-29T13:38:16Z
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Götterdämmerung, WWV 86D, Act III: Brunnhilde takes the Ring from Siegfried's Hand and Lights Her Funeral Pyre (Reworked by Joseph Swensen)
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  date published: 2026-07-31T02:19:15Z
audio: Götterdämmerung, WWV 86D, Act III: Brunnhilde takes the Ring from Siegfried's Hand and Lights Her Funeral Pyre (Reworked by Joseph Swensen)
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Götterdämmerung, WWV 86D, Act III: Brunnhilde's Immolation and the World is Consumed in Flood and Fire (Reworked by Joseph Swensen)
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  date published: 2026-07-31T05:17:02Z
audio: Götterdämmerung, WWV 86D, Act III: Brunnhilde's Immolation and the World is Consumed in Flood and Fire (Reworked by Joseph Swensen)
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Fall: Die Dollarprinzessin (Live)
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Wagner, R.: Der Fliegende Hollander
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Czech Classical Masterpieces
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Kienzl: Lieder, Vol. 1
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Wagner: Das Liebesverbot
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The Best of Antoni Wit
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Kienzl: Lieder, Vol. 1
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Schumann: Die Orange und Myrthe hier
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Brahms: Ein deutsches Requiem
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Berg: Altenberg Lieder
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audio: Götterdämmerung, WWV 86D, Act II: Hagen Summons the Gibichung Vassals to War (Reworked by Joseph Swensen)
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Die Walküre, WWV 86B, Act II: Prelude - Wotan and Frika Argue over Siegmund’s Immorality (Reworked by Joseph Swensen)
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  date published: 2026-07-02T11:34:59Z
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Götterdämmerung, WWV 86D, Act III: Prelude - The Rhine Maidens Urge Siegfried to Return the Ring to the Rhine (Reworked by Joseph Swensen)
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  date published: 2026-07-08T03:53:27Z
audio: Götterdämmerung, WWV 86D, Act III: Prelude - The Rhine Maidens Urge Siegfried to Return the Ring to the Rhine (Reworked by Joseph Swensen)
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Götterdämmerung, WWV 86D, Act III: Siegfried is Murdered by Hagen (Reworked by Joseph Swensen)
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  date published: 2026-07-08T03:53:27Z
audio: Götterdämmerung, WWV 86D, Act III: Siegfried is Murdered by Hagen (Reworked by Joseph Swensen)
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Die Walküre, WWV 86B, Act III: "He who Fears My Spear, May not Pass this Fire" - Only the Bravest Hero Will Free Brünnhilde (Reworked by Joseph Swensen)
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  date published: 2026-07-08T08:56:20Z
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Richard Strauss: Complete Works for Voice & Piano
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Wagner: Rienzi
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Janacek: Glagolitic Mass - Sinfonietta
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Schumann: Scenes from Goethe's Faust
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Sibelius: Luonnotar, Op.70
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