Alexey Naumenko
type: MusicGroup
popularity: 8
followers: 28
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additional property: OTSBitcoinBlock
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d5ee1882e87843dbf0e2e28214ff8e5f8114847efc32b46bc8e13c09b7aa40. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1763da7-b89f-421d-a209-96bf7137c7de.json and https://artists.proofprofile.net/proofs/artist/d1763da7-b89f-421d-a209-96bf7137c7de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
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album: Album I
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  date published: 2017-07-12
track: Sonatina for Violin and Piano in D Major, D. 484: I. Allegro molto
track: Sonatina for Violin and Piano in D Major, D. 484: II. Andante
track: Sonatina for Violin and Piano in D Major, D. 484: III. Allegro vivace

Sonatina for Violin and Piano in D Major, D. 484: I. Allegro molto
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duration: PT4M11S
duration ms: 251573
explicit: false
by artist: Franz Schubert
by artist: Alexey Naumenko
by artist: Misha Fomin
in album: Schubert: Sonatinas and Sonata for Violin and Piano
  type: MusicAlbum
  date published: 2015-06-23
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: NLHK11500001
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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
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: 2026-07-02T03:30:09Z
audio: Sonatina for Violin and Piano in D Major, D. 484: I. Allegro molto
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  additional property: Valence (Positivity)
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Sonatina for Violin and Piano in D Major, D. 484: II. Andante
type: MusicRecording
duration: PT4M25S
duration ms: 265520
explicit: false
by artist: Franz Schubert
by artist: Alexey Naumenko
by artist: Misha Fomin
in album: Schubert: Sonatinas and Sonata for Violin and Piano
  type: MusicAlbum
  date published: 2015-06-23
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: NLHK11500002
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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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 0xc3c6e8e1d991e288b7f16ae25010e68ea3ff0568b74f95c428213b021dcfb3f6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLHK11500002.
  date published: 2026-07-02T03:30:09Z
audio: Sonatina for Violin and Piano in D Major, D. 484: II. Andante
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  additional property: Tempo (BPM)
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    type: PropertyValue
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Sonatina for Violin and Piano in D Major, D. 484: III. Allegro vivace
type: MusicRecording
duration: PT4M8S
duration ms: 248146
explicit: false
by artist: Franz Schubert
by artist: Alexey Naumenko
by artist: Misha Fomin
in album: Schubert: Sonatinas and Sonata for Violin and Piano
  type: MusicAlbum
  date published: 2015-06-23
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: NLHK11500003
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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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  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eaeb525fc3062d11aab2bf91d20f1c7cd942d3f969948e94e9edbbffe4cc373. 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/NLHK11500003.
  date published: 2026-07-02T03:55:08Z
audio: Sonatina for Violin and Piano in D Major, D. 484: III. Allegro vivace
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