Barbara Werner
type: MusicGroup
genre: choral
genre: classical
genre: requiem
popularity: 15
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051bfe9afa3f328c7decdb44150f42cb698b29f3a6061bd84c0ac12d3bb2dc73. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adc64e02-d57b-44b0-9179-925685260261.json and https://artists.proofprofile.net/proofs/artist/adc64e02-d57b-44b0-9179-925685260261.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T06:45:19Z
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track: Requiem in D Minor, K. 626: VIII. Lacrimosa
track: Requiem in D Minor, K. 626: III. Dies irae
track: Die Geburt Christi (The Birth of Christ), Op. 90: Ich harre des Herrn, meine Seele harret (Tenor I, Tenor II, Bass I, Bass II, Chorus)

Requiem in D Minor, K. 626: VIII. Lacrimosa
type: MusicRecording
duration: PT3M3S
duration ms: 183680
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Pamela Heuvelmans
by artist: Barbara Werner
by artist: Robert Morvaj
by artist: Thomas Pfeiffer
by artist: Chamber Choir Of Europe
by artist: Südwestdeutsches Kammerorchester Pforzheim
by artist: Nicol Matt
in album: Top 50 Mozart
  type: MusicAlbum
  date published: 2014-06-27
popularity: 2
genre: classical
genre: classical-era
isrc code: NLY331411359
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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 0x143af41e3cdd004c0963a0a0a449ddb41639251291754d5ed4b89b4daca05c8c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331411359.
  date published: 2026-07-08T03:22:41Z
audio: Requiem in D Minor, K. 626: VIII. Lacrimosa
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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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
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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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  additional property: Key Name
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Requiem in D Minor, K. 626: III. Dies irae
type: MusicRecording
duration: PT1M58S
duration ms: 118186
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Pamela Heuvelmans
by artist: Barbara Werner
by artist: Robert Morvaj
by artist: Thomas Pfeiffer
by artist: Chamber Choir Of Europe
by artist: Südwestdeutsches Kammerorchester Pforzheim
by artist: Nicol Matt
in album: Top 50 Mozart
  type: MusicAlbum
  date published: 2014-06-27
popularity: 2
genre: classical
genre: classical-era
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e8dfcabecdc208638bc691deb66e907eef120bcf20335d61064c57c2d5a2cc. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331411354.
  date published: 2026-07-31T12:24:41Z
audio: Requiem in D Minor, K. 626: III. Dies irae
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isrc code: NLY331411354
additional property: CopyrightID
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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

Die Geburt Christi (The Birth of Christ), Op. 90: Ich harre des Herrn, meine Seele harret (Tenor I, Tenor II, Bass I, Bass II, Chorus)
type: MusicRecording
duration: PT3M51S
duration ms: 231920
explicit: false
by artist: Heinrich von Herzogenberg
by artist: Alexandra Steiner
by artist: Barbara Werner
by artist: Tilman Lichdi
by artist: Benedikt Nawrath
by artist: Philipp Gaiser
by artist: Michael Bauer
by artist: Wurzburg Ecumenist Univeristy Choir
by artist: Wurzburg Herzogenberg Orchestra
by artist: Matthias Beckert
in album: Herzogenberg: Die Geburt Christi (The Birth of Christ)
  type: MusicAlbum
  date published: 2006-01-01
genre: late-romantic-era
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f57998577d5ad3243370fc57fffcbba22a38f49748e122139cdc57ac41b008. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEB200521102.
  date published: 2026-07-31T21:25:57Z
audio: Die Geburt Christi (The Birth of Christ), Op. 90: Ich harre des Herrn, meine Seele harret (Tenor I, Tenor II, Bass I, Bass II, Chorus)
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  additional property: Key Name
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    value: E
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    type: PropertyValue
    value: Minor
isrc code: DEB200521102
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