Ludovit Kanta
type: MusicGroup
genre: classical
popularity: 47
followers: 1279
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3c12656c1dc66a93634ee6122a8234a8a826d7078a77264a1ec20f13f8e083a6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5484ae98-d303-4e8f-b181-24032502d6de.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5484ae98-d303-4e8f-b181-24032502d6de.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5484ae98-d303-4e8f-b181-24032502d6de
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3c12656c1dc66a93634ee6122a8234a8a826d7078a77264a1ec20f13f8e083a6","name":"Ludovit Kanta","registered_at":"2026-06-11T21:04:17Z","symbol":"NIM0111163","token_address":"0x0c362331a019fb5e4bee3942be4648b31a902c1f","type":"artist","uuid":"5484ae98-d303-4e8f-b181-24032502d6de"}
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 0x3c12656c1dc66a93634ee6122a8234a8a826d7078a77264a1ec20f13f8e083a6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5484ae98-d303-4e8f-b181-24032502d6de.json and https://artists.proofprofile.net/proofs/artist/5484ae98-d303-4e8f-b181-24032502d6de.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x3c12656c1dc66a93634ee6122a8234a8a826d7078a77264a1ec20f13f8e083a6","name":"Ludovit Kanta","registered_at":"2026-06-11T21:04:17Z","symbol":"NIM0111163","token_address":"0x0c362331a019fb5e4bee3942be4648b31a902c1f","type":"artist","uuid":"5484ae98-d303-4e8f-b181-24032502d6de"}
album: Haydn: Cello Concertos Nos. 1 and 2 / Boccherini: Cello Concerto in B-Flat Major
  type: MusicAlbum
  date published: 1989-03-15
album: Franz Schubert Sonata Arpeggione
  type: MusicAlbum
  date published: 1997-12-01
track: Cello Concerto No. 1 in C Major, Hob.VIIb:1: II. Adagio
  type: MusicRecording
  duration: PT8M41S
  duration ms: 521000
  explicit: false
  by artist: Joseph Haydn
  by artist: Ludovit Kanta
  by artist: Capella Istropolitana
  by artist: Peter Breiner
  in album: Classic Swoon
    type: MusicAlbum
    date published: 2009-01-01
  popularity: 2
  isrc code: HKI199306505
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x4d8df6363c69ab38bd783d3621c1a08a5b9b9d6f0a52dd3f916e59ebc96f8436
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 960459
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960459
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199306505
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T20:22:46Z
  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 0x4d8df6363c69ab38bd783d3621c1a08a5b9b9d6f0a52dd3f916e59ebc96f8436. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199306505 — a six-check JSON result.
    date published: 2026-07-31T20:22:46Z
  audio: Cello Concerto No. 1 in C Major, Hob.VIIb:1: II. Adagio
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 112.511
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.157
    additional property: Energy
      type: PropertyValue
      value: 0.037
    additional property: Speechiness
      type: PropertyValue
      value: 0.05
    additional property: Acousticness
      type: PropertyValue
      value: 0.969
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.631
    additional property: Liveness
      type: PropertyValue
      value: 0.195
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.107
    additional property: Loudness (dB)
      type: PropertyValue
      value: -27.683
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major