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type: MusicGroup
genre: classical
popularity: 41
followers: 478
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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  date published: 2026-06-12T21:20:00Z
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album: Maliszewski: Symphonic Works
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    by artist: Opole Philharmonic Orchestra
    by artist: Przemyslaw Neumann
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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
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70f75a4cc3d53762867af8a5eb13f9c030898b59fb386141b8d9dfb283ea969. 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/PLA162171708.
      date published: 2026-07-08T08:56:20Z
    audio: Symphony No. 3 in C Minor, Op. 14: IIIb. Var. 1, Allegro passionato
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    by artist: Przemyslaw Neumann
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:22:41Z
    audio: Symphony No. 3 in C Minor, Op. 14: IV. Finale. Allegro giocoso
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album: Mozart: Ouvertures
album: Best Classical Music for Babies
album: Mozart: Eine kleine Nachtmusik
track: Eine kleine Nachtmusik in G Major, K. 525: II. Romanza. Andante

Die Zauberflöte, K. 620: Ouverture
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duration ms: 433935
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by artist: Opole Philharmonic Orchestra
by artist: Alexandr Tracz
in album: Mozart: Ouvertures
  type: MusicAlbum
  date published: 2014-05-29
genre: classical
genre: classical-era
isrc code: ITD541400325
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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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: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Die Zauberflöte, K. 620: Ouverture
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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Ascanio in Alba, K. 111: Ouverture
type: MusicRecording
duration: PT3M36S
duration ms: 216506
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Opole Philharmonic Orchestra
by artist: Werner Stiefel
in album: Mozart: Ouvertures
  type: MusicAlbum
  date published: 2014-05-29
genre: classical
genre: classical-era
isrc code: ITD541400335
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
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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
  type: PropertyValue
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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: 2026-06-13T12:47:07Z
audio: Ascanio in Alba, K. 111: Ouverture
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  additional property: Valence (Positivity)
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Eine kleine Nachtmusik in G Major, K. 525: I. Allegro
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duration: PT6M2S
duration ms: 362906
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Opole Philharmonic Orchestra
by artist: Werner Stiefel
in album: Mozart: Eine kleine Nachtmusik
  type: MusicAlbum
  date published: 2014-05-29
popularity: 41
genre: classical
genre: classical-era
isrc code: ITD541400329
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerificationAPI
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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: 2026-06-13T15:41:10Z
audio: Eine kleine Nachtmusik in G Major, K. 525: I. Allegro
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  additional property: Danceability
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  additional property: Acousticness
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Eine kleine Nachtmusik in G Major, K. 525: III. Minuetto. Allegretto
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duration: PT2M25S
duration ms: 145840
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Opole Philharmonic Orchestra
by artist: Werner Stiefel
in album: Mozart: Eine kleine Nachtmusik
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popularity: 24
genre: classical
genre: classical-era
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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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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Eine kleine Nachtmusik in G Major, K. 525: IV. Rondò. Allegro
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Eine kleine Nachtmusik in G Major, K. 525: II. Romanza. Andante
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Mozart: Ouvertures
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Best Classical Music for Babies
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Mozart: Eine kleine Nachtmusik
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track: Eine kleine Nachtmusik in G Major, K. 525: I. Allegro
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track: Eine kleine Nachtmusik in G Major, K. 525: IV. Rondò. Allegro