Katherine Nagy
type: MusicGroup
genre: vocal jazz
popularity: 16
followers: 597
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 953750
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953750
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8bdd0e3-7a11-4611-8d9f-c3c33768a5e5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8bdd0e3-7a11-4611-8d9f-c3c33768a5e5.json
additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cebb13a546ba7af80cd778a296368ed65580a1520c1d82c028e2b578a0575b0. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8bdd0e3-7a11-4611-8d9f-c3c33768a5e5.json and https://artists.proofprofile.net/proofs/artist/a8bdd0e3-7a11-4611-8d9f-c3c33768a5e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T06:12:23Z
  text: {"copyright_id":"0x1cebb13a546ba7af80cd778a296368ed65580a1520c1d82c028e2b578a0575b0","name":"Katherine Nagy","registered_at":"2026-06-14T22:09:01Z","symbol":"NIM0591487","token_address":"0x694457393d4e8c9715e1a266f5764fbf6ee213c4","type":"artist","uuid":"a8bdd0e3-7a11-4611-8d9f-c3c33768a5e5"}
album: Gypsy Lady
  type: MusicAlbum
  date published: 2017-03-06
album: Dark Night
  type: MusicAlbum
  date published: 2017-05-16
album: Fly High - EP
  type: MusicAlbum
  date published: 2017-10-09
album: Landslide
  type: MusicAlbum
  date published: 2017-11-20
album: Heartsongs
  type: MusicAlbum
  date published: 2018-11-15
album: I Can't Make You Love Me
  type: MusicAlbum
  date published: 2019-09-12
album: Hold on to Love
  type: MusicAlbum
  date published: 2019-11-15
album: Beautiful
  type: MusicAlbum
  date published: 2020-10-08
album: Blossom Time
  type: MusicAlbum
  date published: 2020-11-06
album: Christmas Memories
  type: MusicAlbum
  date published: 2020-12-18
album: Magnolia Tree
  type: MusicAlbum
  date published: 2021-09-24
album: Snow Day
  type: MusicAlbum
  date published: 2021-12-03
album: Come Back Home
  type: MusicAlbum
  date published: 2022-11-18
album: My Baby Blue Eyes
  type: MusicAlbum
  date published: 2023-02-02
album: Roll With It
  type: MusicAlbum
  date published: 2023-03-31
album: Hold Me This Christmas
  type: MusicAlbum
  date published: 2023-12-01
album: Jimmy's Dance
  type: MusicAlbum
  date published: 2024-03-01
album: Work is My Prayer
  type: MusicAlbum
  date published: 2024-07-26
album: Sweetlove
  type: MusicAlbum
  date published: 2024-08-23
  track: Sweetlove
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206306
    explicit: false
    by artist: Katherine Nagy
    in album: Sweetlove
      type: MusicAlbum
      date published: 2024-08-23
    genre: vocal jazz
    isrc code: QZTB22490711
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
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    additional property: CopyrightRegisteredAt
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22490711
    additional property: OTSTimestamp
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      value: 2026-07-17T10:29:45Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50363babae05706f048572ca922bf971a276be101292ae48acfcf7f2c4a31dea. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZTB22490711.
      date published: 2026-07-17T10:29:45Z
    audio: Sweetlove
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 77.973
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.688
      additional property: Energy
        type: PropertyValue
        value: 0.701
      additional property: Speechiness
        type: PropertyValue
        value: 0.115
      additional property: Acousticness
        type: PropertyValue
        value: 0.517
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.131
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.675
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.103
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major