Mary Kate
type: MusicGroup
popularity: 8
followers: 415
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb98edef02ad78379236b455930e7051fe6dc372a802e335a8cb8a162cfcb5a2c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954017
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954017
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/372752da-1689-45d2-a708-02ee75efc7d5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/372752da-1689-45d2-a708-02ee75efc7d5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/372752da-1689-45d2-a708-02ee75efc7d5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:38:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb98edef02ad78379236b455930e7051fe6dc372a802e335a8cb8a162cfcb5a2c","name":"Mary Kate","registered_at":"2026-06-16T08:45:35Z","symbol":"NIM0998903","token_address":"0x816f5063b1db55ce1eadb29f57a3613d4dbfa229","type":"artist","uuid":"372752da-1689-45d2-a708-02ee75efc7d5"}
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 0xb98edef02ad78379236b455930e7051fe6dc372a802e335a8cb8a162cfcb5a2c. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/372752da-1689-45d2-a708-02ee75efc7d5.json and https://artists.proofprofile.net/proofs/artist/372752da-1689-45d2-a708-02ee75efc7d5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T23:38:33Z
  text: {"copyright_id":"0xb98edef02ad78379236b455930e7051fe6dc372a802e335a8cb8a162cfcb5a2c","name":"Mary Kate","registered_at":"2026-06-16T08:45:35Z","symbol":"NIM0998903","token_address":"0x816f5063b1db55ce1eadb29f57a3613d4dbfa229","type":"artist","uuid":"372752da-1689-45d2-a708-02ee75efc7d5"}
album: The Outcome EP
  type: MusicAlbum
  date published: 2021-08-02
album: tired
  type: MusicAlbum
  date published: 2021-09-16
album: through fire
  type: MusicAlbum
  date published: 2021-10-14
album: All I Ever Wanted
  type: MusicAlbum
  date published: 2022-01-10
album: 2 To Play
  type: MusicAlbum
  date published: 2022-03-14
album: Fucking Hurts
  type: MusicAlbum
  date published: 2022-04-28
album: Fall 4 You ep
  type: MusicAlbum
  date published: 2022-07-28
album: Cinderella's Style
  type: MusicAlbum
  date published: 2022-11-03
album: Like a Prayer
  type: MusicAlbum
  date published: 2023-02-20
album: Love Alone
  type: MusicAlbum
  date published: 2023-06-07
album: Cupid (gon' be fun)
  type: MusicAlbum
  date published: 2023-08-09
album: Cupid (gon' be fun)
  type: MusicAlbum
  date published: 2023-08-09
album: Expert of Desire
  type: MusicAlbum
  date published: 2023-09-28
album: UNHEALTHY HABITS
  type: MusicAlbum
  date published: 2024-03-04
album: Expert of Desire (beta remix)
  type: MusicAlbum
  date published: 2024-04-10
album: UNHEALTHY HABITS - Special Edition
  type: MusicAlbum
  date published: 2024-07-15
album: Capulet EP
  type: MusicAlbum
  date published: 2024-09-27
  track: Capulet - AA Remix
    type: MusicRecording
    duration: PT3M4S
    duration ms: 184143
    explicit: false
    by artist: Mary Kate
    in album: Capulet EP
      type: MusicAlbum
      date published: 2024-09-27
    isrc code: QZWFE2480353
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T20:18:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x346ae90394a5cd4d1a776720d6bc4fe96c6df7593f30398799e010f78c9c09fc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956551
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956551
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFE2480353
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0x346ae90394a5cd4d1a776720d6bc4fe96c6df7593f30398799e010f78c9c09fc. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZWFE2480353 — a six-check JSON result.
      date published: 2026-07-03T21:18:05Z
    audio: Capulet - AA Remix
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 115.949
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.679
      additional property: Energy
        type: PropertyValue
        value: 0.918
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.017
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.445
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.302
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.911
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Could be you EP
  type: MusicAlbum
  date published: 2024-10-11
album: Stay delusional
  type: MusicAlbum
  date published: 2025-02-27
album: Good girl (Remixes)Pt. 1
  type: MusicAlbum
  date published: 2025-05-29
album: Good girl (Remixes)Pt. 2
  type: MusicAlbum
  date published: 2025-06-26