József Gregor
type: MusicGroup
genre: opera
genre: requiem
description: József Gregor (born 30 November 1963) is a retired Hungarian football striker. He became Nemzeti Bajnokság I top goalscorer in 1990–91 and was capped for Hungary. References Category:1963 births Cat
popularity: 21
followers: 206
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8621704b4608179720407d5d1c56886ae660a070079404f11d3eb4a9d68da74
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/3ffb6aa3-e188-4f6c-8397-ce4aff391d96.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3ffb6aa3-e188-4f6c-8397-ce4aff391d96.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3ffb6aa3-e188-4f6c-8397-ce4aff391d96
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb8621704b4608179720407d5d1c56886ae660a070079404f11d3eb4a9d68da74","name":"József Gregor","registered_at":"2026-06-11T17:30:33Z","symbol":"NIM0082869","token_address":"0xc401f3f5f1e006865b497c8abf4970193010c5ef","type":"artist","uuid":"3ffb6aa3-e188-4f6c-8397-ce4aff391d96"}
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 0xb8621704b4608179720407d5d1c56886ae660a070079404f11d3eb4a9d68da74. 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/3ffb6aa3-e188-4f6c-8397-ce4aff391d96.json and https://artists.proofprofile.net/proofs/artist/3ffb6aa3-e188-4f6c-8397-ce4aff391d96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xb8621704b4608179720407d5d1c56886ae660a070079404f11d3eb4a9d68da74","name":"József Gregor","registered_at":"2026-06-11T17:30:33Z","symbol":"NIM0082869","token_address":"0xc401f3f5f1e006865b497c8abf4970193010c5ef","type":"artist","uuid":"3ffb6aa3-e188-4f6c-8397-ce4aff391d96"}
album: Gregor, Jozsef: Bass Opera Arias
  type: MusicAlbum
  date published: 2014-07-15
  track: Don Pasquale, Act III: Duet: Cheti, cheti immantinente (Don Pasquale, Malatesta)
    type: MusicRecording
    duration: PT6M33S
    duration ms: 393413
    explicit: false
    by artist: József Gregor
    in album: Gregor, Jozsef: Bass Opera Arias
      type: MusicAlbum
      date published: 2014-07-15
    genre: opera
    genre: requiem
    isrc code: HUA253173715
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-31T17:08:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd5e248540b827b33ed85bdb972bd57ba6bd3cd191ab5644021e2819b351d60df
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960441
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960441
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA253173715
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T17:29:52Z
    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 0xd5e248540b827b33ed85bdb972bd57ba6bd3cd191ab5644021e2819b351d60df. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/HUA253173715.
      date published: 2026-07-31T17:29:52Z
    audio: Don Pasquale, Act III: Duet: Cheti, cheti immantinente (Don Pasquale, Malatesta)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.359
      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: 0.543
      additional property: Energy
        type: PropertyValue
        value: 0.342
      additional property: Speechiness
        type: PropertyValue
        value: 0.127
      additional property: Acousticness
        type: PropertyValue
        value: 0.981
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.025
      additional property: Liveness
        type: PropertyValue
        value: 0.152
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.438
      additional property: Loudness (dB)
        type: PropertyValue
        value: -18.442
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Gregor, Jozsef: Bass Opera Arias
  type: MusicAlbum
  date published: 2014-07-15
track: Don Pasquale: Act I Scene 2: Cavatina: Quel guardo il cavaliere (Norina)
  type: MusicRecording
  duration: PT6M17S
  duration ms: 377160
  explicit: false
  by artist: Gaetano Donizetti
  by artist: József Gregor
  by artist: Istvan Gati
  by artist: Janos Bandi
  by artist: Magda Kalmár
  by artist: Tamas Szule
  by artist: Hungarian Radio and Television Chorus
  by artist: Hungarian State Orchestra
  by artist: Iván Fischer
  in album: Donizetti: Don Pasquale
    type: MusicAlbum
    date published: 2014-07-15
  popularity: 2
  genre: opera
  isrc code: HUA251241607
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T19:19:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x90ca3145e58533814bdbe2d5514bf52d5397167f63989ba4b8d44cbd844c6202
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HUA251241607
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  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 0x90ca3145e58533814bdbe2d5514bf52d5397167f63989ba4b8d44cbd844c6202. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HUA251241607.
    date published: 2026-07-08T03:22:41Z
  audio: Don Pasquale: Act I Scene 2: Cavatina: Quel guardo il cavaliere (Norina)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 111.597
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.395
    additional property: Energy
    additional property: Speechiness
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Energy
type: PropertyValue
value: 0.098

Speechiness
type: PropertyValue
value: 0.058

Acousticness
type: PropertyValue
value: 0.954

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.152

Valence (Positivity)
type: PropertyValue
value: 0.107

Loudness (dB)
type: PropertyValue
value: -21.897

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Major