Kazushi Ono
type: MusicGroup
popularity: 10
followers: 308
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5a432f28ad636e3b4385e2f7e37aa748715dd42c8c5bb5ceb5fa16e9c23662b6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954659
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954659
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dd856a38-f05b-49be-a280-f519f29a3331.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dd856a38-f05b-49be-a280-f519f29a3331.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dd856a38-f05b-49be-a280-f519f29a3331
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T06:14:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5a432f28ad636e3b4385e2f7e37aa748715dd42c8c5bb5ceb5fa16e9c23662b6","name":"Kazushi Ono","registered_at":"2026-06-21T05:11:42Z","symbol":"NIM1830080","token_address":"0xceda72d3a86065a1a7798c4c2c573aedabd90b65","type":"artist","uuid":"dd856a38-f05b-49be-a280-f519f29a3331"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a432f28ad636e3b4385e2f7e37aa748715dd42c8c5bb5ceb5fa16e9c23662b6. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd856a38-f05b-49be-a280-f519f29a3331.json and https://artists.proofprofile.net/proofs/artist/dd856a38-f05b-49be-a280-f519f29a3331.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T06:14:42Z
  text: {"copyright_id":"0x5a432f28ad636e3b4385e2f7e37aa748715dd42c8c5bb5ceb5fa16e9c23662b6","name":"Kazushi Ono","registered_at":"2026-06-21T05:11:42Z","symbol":"NIM1830080","token_address":"0xceda72d3a86065a1a7798c4c2c573aedabd90b65","type":"artist","uuid":"dd856a38-f05b-49be-a280-f519f29a3331"}
album: Gustav Mahler Peta Simfonija U Cis-Molu
  type: MusicAlbum
  date published: 1996-01-01
album: Peter Tschaikowsky, Sofia Ansgatowna Gubaidulina
  type: MusicAlbum
  date published: 2000-06-02
album: Les ballets de Picasso
  type: MusicAlbum
  date published: 2019-10-01
track: Le nozze di Figaro, K.492 / Act 2: "Voi che sapete"

Le nozze di Figaro, K.492 / Act 2: "Voi che sapete"
type: MusicRecording
duration: PT2M51S
duration ms: 171346
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Joyce DiDonato
by artist: Orchestre de l'Opéra de Lyon
by artist: Kazushi Ono
by artist: Orchestre De L'Opéra National De Lyon
in album: Opera 2012
  type: MusicAlbum
  date published: 2012-01-01
popularity: 25
genre: classical
genre: classical-era
isrc code: GBAYC1002811
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-06-11T22:53:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x85da1a23932cc5fb5db5e47cbb6d91c31638af43c468544d81bf7c9f8bc784bb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1002811
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09+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
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85da1a23932cc5fb5db5e47cbb6d91c31638af43c468544d81bf7c9f8bc784bb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBAYC1002811.
  date published: 2026-06-13T17:25:41Z
audio: Le nozze di Figaro, K.492 / Act 2: "Voi che sapete"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.036
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.32
  additional property: Energy
    type: PropertyValue
    value: 0.046
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.011
  additional property: Liveness
    type: PropertyValue
    value: 0.135
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.129
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.671
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor