Duo Reine Elisabeth
type: MusicGroup
genre: classical-piano-duo
popularity: 7
followers: 47
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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 0xc84f812ebefc5ee716e10ad7c34dea8bcce707c42ea9caf2044be1bb70fca71a. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0cf6b5f2-a152-440e-a01a-660468bbc8b6.json and https://artists.proofprofile.net/proofs/artist/0cf6b5f2-a152-440e-a01a-660468bbc8b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
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album: Romantic Piano, Vol. 2 (Live)
  type: MusicAlbum
  date published: 2021-06-25
album: Brahms: Variations on a Theme by Haydn, Op. 56b (Version for 2 Pianos)
  type: MusicAlbum
  date published: 2015-03-03
album: Ysaÿe: Variations for 2 Pianos, Op. 10
  type: MusicAlbum
  date published: 2015-03-03
album: Rachmaninoff: Russian Rhapsody for 2 Pianos
  type: MusicAlbum
  date published: 2015-03-03
album: Mozart, Schubert, Liszt
  type: MusicAlbum
  date published: 1996-01-01
  track: Sonate D-Dur KV 448: I. Allegro con spirito
  track: Sonate D-Dur KV 448: II. Andante
  track: Sonate D-Dur KV 448: III. Allegro molto
album: Debussy, Rachmaninov, Ravel
  type: MusicAlbum
  date published: 1996-01-01

Sonate D-Dur KV 448: I. Allegro con spirito
type: MusicRecording
duration: PT7M51S
duration ms: 471893
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Duo Reine Elisabeth
in album: Mozart, Schubert, Liszt
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: classical-era
isrc code: DEC299629801
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-07-02T03:55:08+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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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37aad7132027ac9c9210bda5e866e42189f3a7c7606426c4c28a5540f33bf7ba. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEC299629801.
  date published: 2026-07-02T05:09:12Z
audio: Sonate D-Dur KV 448: I. Allegro con spirito
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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: Loudness (dB)
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  additional property: Key Name
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Sonate D-Dur KV 448: II. Andante
type: MusicRecording
duration: PT8M55S
duration ms: 535813
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Duo Reine Elisabeth
in album: Mozart, Schubert, Liszt
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: classical-era
isrc code: DEC299629802
additional property: CopyrightID
additional property: CopyrightStatus
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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: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d1dce850da5deba8bc0bdeca6656012b5df272fb486bd25b1875aabde982b5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC299629802.
  date published: 2026-07-02T03:55:08Z
audio: Sonate D-Dur KV 448: II. Andante
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Sonate D-Dur KV 448: III. Allegro molto
type: MusicRecording
duration: PT6M1S
duration ms: 361360
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Duo Reine Elisabeth
in album: Mozart, Schubert, Liszt
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: classical-era
isrc code: DEC299629803
additional property: CopyrightID
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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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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e148c106a7484e6f3c6d82e59862ba9c82df0b264fde0c7acea7866a74db6ea. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC299629803.
  date published: 2026-07-06T07:16:32Z
audio: Sonate D-Dur KV 448: III. Allegro molto
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