Grauschumacher Piano Duo
type: MusicGroup
genre: choral
popularity: 11
followers: 165
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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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  date published: 2026-06-14T07:39:50Z
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album: Schrift-Um-Schrift : Rihm Bartok
  type: MusicAlbum
  date published: 2011-01-12
album: Debussy & Stravinsky: Le Sacre
  type: MusicAlbum
  date published: 2013-08-01
album: Debussy & Stravinsky: Le Sacre
  type: MusicAlbum
  date published: 2013-08-01
album: Grand Duo
  type: MusicAlbum
  date published: 2013-08-01
album: Schrift-Um-Schrift
  type: MusicAlbum
  date published: 2013-08-01
album: Grand Duo
  type: MusicAlbum
  date published: 2013-08-01
album: Kosmos
  type: MusicAlbum
  date published: 2013-08-01
album: Concerti I
  type: MusicAlbum
  date published: 2013-08-01
album: Transcriptions
  type: MusicAlbum
  date published: 2013-08-01
album: Transcriptions
  type: MusicAlbum
  date published: 2013-08-01
album: Kosmos
  type: MusicAlbum
  date published: 2013-08-01
album: Concerti I
  type: MusicAlbum
  date published: 2013-08-01
album: Concerti II
  type: MusicAlbum
  date published: 2014-01-07
album: Concerti II
  type: MusicAlbum
  date published: 2014-01-07
album: Concerti III: Poulenc, McPhee & Adams
  type: MusicAlbum
  date published: 2017-03-17
album: Concerti III: Poulenc, McPhee & Adams
  type: MusicAlbum
  date published: 2017-03-17
album: Fantasias
  type: MusicAlbum
  date published: 2017-06-02
album: Fantasias
  type: MusicAlbum
  date published: 2017-06-02
album: Remixed
  type: MusicAlbum
  date published: 2021-03-19
album: Remixed
  type: MusicAlbum
  date published: 2021-03-19
track: 18 Liebeslieder Waltzes, Op. 52: No. 9. Am Donaustrande
track: 18 Liebeslieder Waltzes, Op. 52: No. 1. Rede, Madchen, allzu liebes
track: 18 Liebeslieder Waltzes, Op. 52: No. 2. Am Gesteine rauscht die Flut
track: 18 Liebeslieder Waltzes, Op. 52: No. 6. Ein kleiner, hubscher Vogel
track: 18 Liebeslieder Waltzes, Op. 52: No. 8. Wenn so lind dein Auge mir

18 Liebeslieder Waltzes, Op. 52: No. 9. Am Donaustrande
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duration: PT1M55S
duration ms: 115373
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by artist: Cologne West German Radio Chorus
by artist: Grauschumacher Piano Duo
by artist: Rupert Huber
in album: Brahms: Liebeslieder & Walzer
  type: MusicAlbum
  date published: 2013-08-01
genre: classical
genre: german-romanticism
genre: late-romantic-era
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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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56552027663cdcd799cb75de4d78ff2762e0e931d1875701609b93f969dd41bc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEGF70830409.
  date published: 2026-07-08T08:56:20Z
audio: 18 Liebeslieder Waltzes, Op. 52: No. 9. Am Donaustrande
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18 Liebeslieder Waltzes, Op. 52: No. 1. Rede, Madchen, allzu liebes
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duration ms: 78106
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by artist: Johannes Brahms
by artist: Cologne West German Radio Chorus
by artist: Grauschumacher Piano Duo
by artist: Rupert Huber
in album: Brahms: Liebeslieder & Walzer
  type: MusicAlbum
  date published: 2013-08-01
genre: classical
genre: german-romanticism
genre: late-romantic-era
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T19:53:13Z
audio: 18 Liebeslieder Waltzes, Op. 52: No. 1. Rede, Madchen, allzu liebes
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additional property: OTSBitcoinBlock
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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

18 Liebeslieder Waltzes, Op. 52: No. 2. Am Gesteine rauscht die Flut
type: MusicRecording
duration: PT0M56S
duration ms: 56186
explicit: false
by artist: Johannes Brahms
by artist: Cologne West German Radio Chorus
by artist: Grauschumacher Piano Duo
by artist: Rupert Huber
in album: Brahms: Liebeslieder & Walzer
  type: MusicAlbum
  date published: 2013-08-01
genre: classical
genre: german-romanticism
genre: late-romantic-era
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T19:53:13Z
audio: 18 Liebeslieder Waltzes, Op. 52: No. 2. Am Gesteine rauscht die Flut
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additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: ContentHash
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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

18 Liebeslieder Waltzes, Op. 52: No. 6. Ein kleiner, hubscher Vogel
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duration: PT2M30S
duration ms: 150053
explicit: false
by artist: Johannes Brahms
by artist: Cologne West German Radio Chorus
by artist: Grauschumacher Piano Duo
by artist: Rupert Huber
in album: Brahms: Liebeslieder & Walzer
  type: MusicAlbum
  date published: 2013-08-01
genre: classical
genre: german-romanticism
genre: late-romantic-era
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
audio: 18 Liebeslieder Waltzes, Op. 52: No. 6. Ein kleiner, hubscher Vogel
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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

18 Liebeslieder Waltzes, Op. 52: No. 8. Wenn so lind dein Auge mir
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by artist: Johannes Brahms
by artist: Cologne West German Radio Chorus
by artist: Grauschumacher Piano Duo
by artist: Rupert Huber
in album: Brahms: Liebeslieder & Walzer
  type: MusicAlbum
  date published: 2013-08-01
genre: classical
genre: german-romanticism
genre: late-romantic-era
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T23:30:38Z
audio: 18 Liebeslieder Waltzes, Op. 52: No. 8. Wenn so lind dein Auge mir
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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