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type: MusicGroup
genre: classical piano
popularity: 8
followers: 116
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerificationAPI
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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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  date published: 2026-06-16T20:07:57Z
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album: Eclipse: Piano works by Tchaikovsky, Rimsky-Korsakov, Rachmaninoff and Medtner
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  date published: 2022-10-04
album: Eclipse: Piano Works by Tchaikovsky, Rimsky-Korsakov, Rachmaninoff and Medtner
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  date published: 2022-10-04
  track: 6 Pieces, Op. 51: Valse Sentimentale, Op. 51, No. 6
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    by artist: Juan Francisco Otón
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      type: MusicAlbum
      date published: 2022-10-04
    genre: classical piano
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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
    subject of: OpenTimestamps Proof of Existence
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef87e5a21a66cc8a69bf44e3d254d62995dedee785d5d9e8bfcaac084e40cf0d. 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/CH6542271694.
      date published: 2026-07-08T03:22:41Z
    audio: 6 Pieces, Op. 51: Valse Sentimentale, Op. 51, No. 6
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  track: Preludes, Op. 23: Prelude, Op. 23 in D Major, No. 4, Andante Cantabile
  track: Preludes, Op. 23: Prelude, Op. 23 in C Minor, No. 7, Allegro
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T08:56:20Z
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  track: Forgotten Melodies I, Op. 38: Canzona Serenata, Op. 38, No. 6
  track: 6 Pieces, Op. 19: Nocturno, Op. 19, No. 4
  track: Pesenka, Inr 90: Little Song, in Dorian Mode
  track: 2 Piano Pieces, Op. 38: Prelude-Impromptu, Op. 38, No. 1
  track: 2 Piano Pieces, Op. 38: Mazurka, Op. 38, No. 2
  track: Preludes, Op. 32: Prelude in G-Sharp Minor, Op. 32, No. 12, Allegro
  track: Preludes, Op. 23: Prelude in E-Flat Major, Op. 23, No. 6, Andante

Preludes, Op. 23: Prelude, Op. 23 in D Major, No. 4, Andante Cantabile
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by artist: Juan Francisco Otón
in album: Eclipse: Piano Works by Tchaikovsky, Rimsky-Korsakov, Rachmaninoff and Medtner
  type: MusicAlbum
  date published: 2022-10-04
genre: classical piano
isrc code: CH6542271692
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Preludes, Op. 23: Prelude, Op. 23 in D Major, No. 4, Andante Cantabile
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Forgotten Melodies I, Op. 38: Canzona Serenata, Op. 38, No. 6
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in album: Eclipse: Piano Works by Tchaikovsky, Rimsky-Korsakov, Rachmaninoff and Medtner
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  date published: 2022-10-04
genre: classical piano
isrc code: CH6542271691
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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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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Forgotten Melodies I, Op. 38: Canzona Serenata, Op. 38, No. 6
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6 Pieces, Op. 19: Nocturno, Op. 19, No. 4
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duration ms: 252843
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by artist: Juan Francisco Otón
in album: Eclipse: Piano Works by Tchaikovsky, Rimsky-Korsakov, Rachmaninoff and Medtner
  type: MusicAlbum
  date published: 2022-10-04
genre: classical piano
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314c49c8b3442382bb916dabf2bc82ed528df6e7d2fd6311a5dbb23d038d7f47. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/CH6542271693.
  date published: 2026-07-30T00:53:20Z
audio: 6 Pieces, Op. 19: Nocturno, Op. 19, No. 4
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additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: OTSHash
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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

Pesenka, Inr 90: Little Song, in Dorian Mode
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in album: Eclipse: Piano Works by Tchaikovsky, Rimsky-Korsakov, Rachmaninoff and Medtner
  type: MusicAlbum
  date published: 2022-10-04
genre: classical piano
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T20:22:46Z
audio: Pesenka, Inr 90: Little Song, in Dorian Mode
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2 Piano Pieces, Op. 38: Prelude-Impromptu, Op. 38, No. 1
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genre: classical piano
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  date published: 2026-08-01T02:22:04Z
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additional property: OTSVerifyInstructions
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2 Piano Pieces, Op. 38: Mazurka, Op. 38, No. 2
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genre: classical piano
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  date published: 2026-07-31T21:25:57Z
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Preludes, Op. 32: Prelude in G-Sharp Minor, Op. 32, No. 12, Allegro
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genre: classical piano
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  date published: 2026-07-31T15:27:29Z
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Preludes, Op. 23: Prelude in E-Flat Major, Op. 23, No. 6, Andante
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genre: classical piano
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T04:14:58Z
audio: Preludes, Op. 23: Prelude in E-Flat Major, Op. 23, No. 6, Andante
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