Keira Barton
type: MusicGroup
popularity: 30
followers: 472
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf5f62255823a0e7050d1b42d46a6647bb7805eb04d4a22dbb094683d75e6ae5
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/293f6ff7-bd2e-4c8f-9853-bc1707ff907a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/293f6ff7-bd2e-4c8f-9853-bc1707ff907a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/293f6ff7-bd2e-4c8f-9853-bc1707ff907a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xaf5f62255823a0e7050d1b42d46a6647bb7805eb04d4a22dbb094683d75e6ae5","name":"Keira Barton","registered_at":"2026-06-11T14:50:44Z","symbol":"NIM0054458","token_address":"0x97f538497e81ac206a9c2a45a4ece698f4e54657","type":"artist","uuid":"293f6ff7-bd2e-4c8f-9853-bc1707ff907a"}
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 0xaf5f62255823a0e7050d1b42d46a6647bb7805eb04d4a22dbb094683d75e6ae5. 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/293f6ff7-bd2e-4c8f-9853-bc1707ff907a.json and https://artists.proofprofile.net/proofs/artist/293f6ff7-bd2e-4c8f-9853-bc1707ff907a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xaf5f62255823a0e7050d1b42d46a6647bb7805eb04d4a22dbb094683d75e6ae5","name":"Keira Barton","registered_at":"2026-06-11T14:50:44Z","symbol":"NIM0054458","token_address":"0x97f538497e81ac206a9c2a45a4ece698f4e54657","type":"artist","uuid":"293f6ff7-bd2e-4c8f-9853-bc1707ff907a"}
album: Insouciant
  type: MusicAlbum
  date published: 2019-08-24
album: Buoyant
  type: MusicAlbum
  date published: 2020-01-24
album: Caligo
  type: MusicAlbum
  date published: 2020-07-10
  track: Caligo
    type: MusicRecording
    duration: PT2M48S
    duration ms: 168000
    explicit: false
    by artist: Keira Barton
    in album: Caligo
      type: MusicAlbum
      date published: 2020-07-10
    isrc code: SE5W32024702
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T14:12:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfe58fff1d251f57694154257103b6a7ec654e6aaf5abc6df2f93a646abd12ddf
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957863
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957863
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5W32024702
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T14:41:15Z
    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 0xfe58fff1d251f57694154257103b6a7ec654e6aaf5abc6df2f93a646abd12ddf. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/SE5W32024702.
      date published: 2026-07-13T14:41:15Z
    audio: Caligo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 84.647
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.162
      additional property: Energy
        type: PropertyValue
        value: 0.048
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.989
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.767
      additional property: Liveness
        type: PropertyValue
        value: 0.102
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.066
      additional property: Loudness (dB)
        type: PropertyValue
        value: -28.425
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Eudaemonia
  type: MusicAlbum
  date published: 2021-07-30
album: Ciùineas
  type: MusicAlbum
  date published: 2022-05-06
album: Lygophilia
  type: MusicAlbum
  date published: 2023-03-10