Filippo Quarti
type: MusicGroup
genre: chamber music
popularity: 4
followers: 33
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x6c29d32ae5a8762210c245174b60a51d50df56f898883cb42de0c90069b5f298
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5e948598-3315-416c-b8be-ff86311f7849.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5e948598-3315-416c-b8be-ff86311f7849.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5e948598-3315-416c-b8be-ff86311f7849
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6c29d32ae5a8762210c245174b60a51d50df56f898883cb42de0c90069b5f298","name":"Filippo Quarti","registered_at":"2026-06-16T22:35:12Z","symbol":"NIM1196835","token_address":"0x70f143f31d75687435cb5c4e82d1165909b2e198","type":"artist","uuid":"5e948598-3315-416c-b8be-ff86311f7849"}
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c29d32ae5a8762210c245174b60a51d50df56f898883cb42de0c90069b5f298. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e948598-3315-416c-b8be-ff86311f7849.json and https://artists.proofprofile.net/proofs/artist/5e948598-3315-416c-b8be-ff86311f7849.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x6c29d32ae5a8762210c245174b60a51d50df56f898883cb42de0c90069b5f298","name":"Filippo Quarti","registered_at":"2026-06-16T22:35:12Z","symbol":"NIM1196835","token_address":"0x70f143f31d75687435cb5c4e82d1165909b2e198","type":"artist","uuid":"5e948598-3315-416c-b8be-ff86311f7849"}
album: Joaquin Turina: Piano Works
  type: MusicAlbum
  date published: 2010-07-28
album: The Realm of Night: Pages for Piano
  type: MusicAlbum
  date published: 2010-07-28
  track: Fryderyk Chopin : Notturno in Do minore, No. 21
    type: MusicRecording
    duration: PT2M55S
    duration ms: 175106
    explicit: false
    by artist: Filippo Quarti
    in album: The Realm of Night: Pages for Piano
      type: MusicAlbum
      date published: 2010-07-28
    genre: chamber music
    isrc code: DEBL61091845
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T06:33:31+00:00
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      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9e295356295e36497ee0369abc8d429d992cfc025a202a800fe9229f4889c8ec
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      value: 958377
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958377
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBL61091845
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T06:48:00Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e295356295e36497ee0369abc8d429d992cfc025a202a800fe9229f4889c8ec. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/DEBL61091845.
      date published: 2026-07-17T06:48:00Z
    audio: Fryderyk Chopin : Notturno in Do minore, No. 21
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 76.488
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.338
      additional property: Energy
        type: PropertyValue
        value: 0.009
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.992
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.913
      additional property: Liveness
        type: PropertyValue
        value: 0.163
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.162
      additional property: Loudness (dB)
        type: PropertyValue
        value: -32.271
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Albert Bonera: Presagi
  type: MusicAlbum
  date published: 2010-07-28
album: Giuseppe Martucci, Mario Castelnuovo-Tedesco : L'opera per duo pianistico
  type: MusicAlbum
  date published: 2011-01-27