Sierra Demulder
type: MusicGroup
genre: spoken word
popularity: 4
followers: 489
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xae4c22ca328de30bbd03e6f5d707f210a06c7ad9dab8070b4d878605fac5f799
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/84fc1071-3ebf-4d15-9575-ad2189db6c66.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/84fc1071-3ebf-4d15-9575-ad2189db6c66.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/84fc1071-3ebf-4d15-9575-ad2189db6c66
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xae4c22ca328de30bbd03e6f5d707f210a06c7ad9dab8070b4d878605fac5f799","name":"Sierra Demulder","registered_at":"2026-06-17T12:23:19Z","symbol":"NIM1394358","token_address":"0x38a3d20ddaa048433ca72aef4f6b2c2b4d66db87","type":"artist","uuid":"84fc1071-3ebf-4d15-9575-ad2189db6c66"}
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 0xae4c22ca328de30bbd03e6f5d707f210a06c7ad9dab8070b4d878605fac5f799. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84fc1071-3ebf-4d15-9575-ad2189db6c66.json and https://artists.proofprofile.net/proofs/artist/84fc1071-3ebf-4d15-9575-ad2189db6c66.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xae4c22ca328de30bbd03e6f5d707f210a06c7ad9dab8070b4d878605fac5f799","name":"Sierra Demulder","registered_at":"2026-06-17T12:23:19Z","symbol":"NIM1394358","token_address":"0x38a3d20ddaa048433ca72aef4f6b2c2b4d66db87","type":"artist","uuid":"84fc1071-3ebf-4d15-9575-ad2189db6c66"}
album: Fall
  type: MusicAlbum
  date published: 2019-10-17
  track: Self Care
    type: MusicRecording
    duration: PT5M8S
    duration ms: 308481
    explicit: true
    by artist: Sierra Demulder
    in album: Fall
      type: MusicAlbum
      date published: 2019-10-17
    genre: spoken word
    isrc code: USHM91984914
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T08:30:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe8ecdb069323092af6e03fadcb02d9921d9de0b8bf41964f87435170d6160339
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958705
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958705
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM91984914
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T08:43:25Z
    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 0xe8ecdb069323092af6e03fadcb02d9921d9de0b8bf41964f87435170d6160339. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/USHM91984914.
      date published: 2026-07-19T08:43:25Z
    audio: Self Care
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.075
      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: 0.678
      additional property: Energy
        type: PropertyValue
        value: 0.25
      additional property: Speechiness
        type: PropertyValue
        value: 0.446
      additional property: Acousticness
        type: PropertyValue
        value: 0.591
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.17
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.605
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.281
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major