John Heart Jackie
type: MusicGroup
genre: folk pop
popularity: 6
followers: 1339
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7c622954738352be2a59c49d3c3100335675a998fd2ee3950c738e38be71ff6f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953867
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953867
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/05632c33-b9a4-4000-9454-6ba04c11f22a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/05632c33-b9a4-4000-9454-6ba04c11f22a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/05632c33-b9a4-4000-9454-6ba04c11f22a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:09:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7c622954738352be2a59c49d3c3100335675a998fd2ee3950c738e38be71ff6f","name":"John Heart Jackie","registered_at":"2026-06-15T15:37:12Z","symbol":"NIM0753399","token_address":"0x28aeffea37872b31dfd22efbe6dee8a6e8041172","type":"artist","uuid":"05632c33-b9a4-4000-9454-6ba04c11f22a"}
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 0x7c622954738352be2a59c49d3c3100335675a998fd2ee3950c738e38be71ff6f. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05632c33-b9a4-4000-9454-6ba04c11f22a.json and https://artists.proofprofile.net/proofs/artist/05632c33-b9a4-4000-9454-6ba04c11f22a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T01:09:47Z
  text: {"copyright_id":"0x7c622954738352be2a59c49d3c3100335675a998fd2ee3950c738e38be71ff6f","name":"John Heart Jackie","registered_at":"2026-06-15T15:37:12Z","symbol":"NIM0753399","token_address":"0x28aeffea37872b31dfd22efbe6dee8a6e8041172","type":"artist","uuid":"05632c33-b9a4-4000-9454-6ba04c11f22a"}
album: Women & Money - EP
  type: MusicAlbum
  date published: 2009-07-21
album: We Are Gold Mounds
  type: MusicAlbum
  date published: 2010-08-03
album: Siren Song (Single)
  type: MusicAlbum
  date published: 2011-05-10
album: When You Were Mine
  type: MusicAlbum
  date published: 2011-10-01
album: Deep As Whales (Olaf Jerzy Edward Ydstie REMIX)
  type: MusicAlbum
  date published: 2012-02-28
album: Nevada City - Single
  type: MusicAlbum
  date published: 2015-09-23
album: If All I Want Is Love - Single
  type: MusicAlbum
  date published: 2015-11-19
album: Episodes
  type: MusicAlbum
  date published: 2016-01-22
  track: Nevada City
    type: MusicRecording
    duration: PT4M28S
    duration ms: 268626
    explicit: false
    by artist: John Heart Jackie
    in album: Episodes
      type: MusicAlbum
      date published: 2016-01-22
    genre: folk pop
    isrc code: QMBZ91500744
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T16:39:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0ddcddabb96c570fe33a47d4efa5b76641b51aec31aa338e94a8e1a11aefb469
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958601
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958601
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ91500744
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T19:27:02Z
    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 0x0ddcddabb96c570fe33a47d4efa5b76641b51aec31aa338e94a8e1a11aefb469. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QMBZ91500744.
      date published: 2026-07-18T19:27:02Z
    audio: Nevada City
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 108.069
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.504
      additional property: Energy
        type: PropertyValue
        value: 0.596
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.516
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.251
      additional property: Liveness
        type: PropertyValue
        value: 0.115
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.119
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.628
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Wild Heart
  type: MusicAlbum
  date published: 2016-03-18
album: Episodes B-Sides
  type: MusicAlbum
  date published: 2016-06-22
album: Nevada City Remixes
  type: MusicAlbum
  date published: 2017-05-24