Liz Mathiesen
type: MusicGroup
popularity: 5
followers: 58
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5b0f5c3569068b9b9364b646c7260adac18703dc2745e829b781ce7017eb56ab
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f0654018-c8ca-41ba-b768-abfa8d76e20f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f0654018-c8ca-41ba-b768-abfa8d76e20f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f0654018-c8ca-41ba-b768-abfa8d76e20f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5b0f5c3569068b9b9364b646c7260adac18703dc2745e829b781ce7017eb56ab","name":"Liz Mathiesen","registered_at":"2026-06-21T13:03:36Z","symbol":"NIM1926491","token_address":"0x35935a34c4e9f7296ca8b8468e80ce550e6cc240","type":"artist","uuid":"f0654018-c8ca-41ba-b768-abfa8d76e20f"}
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 0x5b0f5c3569068b9b9364b646c7260adac18703dc2745e829b781ce7017eb56ab. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0654018-c8ca-41ba-b768-abfa8d76e20f.json and https://artists.proofprofile.net/proofs/artist/f0654018-c8ca-41ba-b768-abfa8d76e20f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x5b0f5c3569068b9b9364b646c7260adac18703dc2745e829b781ce7017eb56ab","name":"Liz Mathiesen","registered_at":"2026-06-21T13:03:36Z","symbol":"NIM1926491","token_address":"0x35935a34c4e9f7296ca8b8468e80ce550e6cc240","type":"artist","uuid":"f0654018-c8ca-41ba-b768-abfa8d76e20f"}
album: You
  type: MusicAlbum
  date published: 2021-03-10
album: April Showers
  type: MusicAlbum
  date published: 2021-04-03
album: April Showers
  type: MusicAlbum
  date published: 2021-04-03
album: Dandelion Wine
  type: MusicAlbum
  date published: 2021-04-17
album: Dandelion Wine
  type: MusicAlbum
  date published: 2021-04-17
album: honeycomb
  type: MusicAlbum
  date published: 2021-06-03
  track: honeycomb
    type: MusicRecording
    duration: PT2M22S
    duration ms: 142500
    explicit: false
    by artist: Liz Mathiesen
    in album: honeycomb
      type: MusicAlbum
      date published: 2021-06-03
    isrc code: SE6I32164804
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T11:54:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5c006310ce3f058607204229d8d5f4eacbd98495e7a69a3b3762c47fa03b24f8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32164804
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0x5c006310ce3f058607204229d8d5f4eacbd98495e7a69a3b3762c47fa03b24f8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SE6I32164804 — a six-check JSON result.
      date published: 2026-07-03T19:59:51Z
    audio: honeycomb
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.021
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.751
      additional property: Energy
        type: PropertyValue
        value: 0.027
      additional property: Speechiness
        type: PropertyValue
        value: 0.053
      additional property: Acousticness
        type: PropertyValue
        value: 0.994
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.897
      additional property: Liveness
        type: PropertyValue
        value: 0.093
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.364
      additional property: Loudness (dB)
        type: PropertyValue
        value: -26.352
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Little Soul (Instrumental Version)
  type: MusicAlbum
  date published: 2021-09-26
album: Gourd Song
  type: MusicAlbum
  date published: 2023-07-16