Cordell Matthias
type: MusicGroup
popularity: 2
followers: 50
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xad5a17936ab6942b8a97eaa05ceaa26c6460198edb8de22dc4202b18e5a410fb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e0993be1-6867-4026-868e-b57e42fc7b32.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e0993be1-6867-4026-868e-b57e42fc7b32.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e0993be1-6867-4026-868e-b57e42fc7b32
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xad5a17936ab6942b8a97eaa05ceaa26c6460198edb8de22dc4202b18e5a410fb","name":"Cordell Matthias","registered_at":"2026-06-21T06:29:52Z","symbol":"NIM1848849","token_address":"0x4fcb17fb0bbce2db33d89a32362138bd95ce194f","type":"artist","uuid":"e0993be1-6867-4026-868e-b57e42fc7b32"}
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 0xad5a17936ab6942b8a97eaa05ceaa26c6460198edb8de22dc4202b18e5a410fb. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e0993be1-6867-4026-868e-b57e42fc7b32.json and https://artists.proofprofile.net/proofs/artist/e0993be1-6867-4026-868e-b57e42fc7b32.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xad5a17936ab6942b8a97eaa05ceaa26c6460198edb8de22dc4202b18e5a410fb","name":"Cordell Matthias","registered_at":"2026-06-21T06:29:52Z","symbol":"NIM1848849","token_address":"0x4fcb17fb0bbce2db33d89a32362138bd95ce194f","type":"artist","uuid":"e0993be1-6867-4026-868e-b57e42fc7b32"}
album: Stranger to Your Love
  type: MusicAlbum
  date published: 2025-03-28
  track: Stranger to Your Love
    type: MusicRecording
    duration: PT4M46S
    duration ms: 286553
    explicit: false
    by artist: Cordell Matthias
    in album: Stranger to Your Love
      type: MusicAlbum
      date published: 2025-03-28
    isrc code: QZK6N2570399
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T10:47:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa638ce7b98be4eb944c22257b8f8f7d8c9d2cb0d412fadd8f841bfd82ea5db4e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958544
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958544
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6N2570399
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T12:14:37Z
    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 0xa638ce7b98be4eb944c22257b8f8f7d8c9d2cb0d412fadd8f841bfd82ea5db4e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZK6N2570399.
      date published: 2026-07-18T12:14:37Z
    audio: Stranger to Your Love
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.035
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.651
      additional property: Energy
        type: PropertyValue
        value: 0.347
      additional property: Speechiness
        type: PropertyValue
        value: 0.132
      additional property: Acousticness
        type: PropertyValue
        value: 0.468
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.114
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.383
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.964
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor