Certain Death
type: MusicGroup
genre: sludge metal
popularity: 4
followers: 294
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe14e3587259596acb4b62fcb031b34a93415b74504445b2948f955e25c59ab20
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953907
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953907
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/157d8a7e-6b78-435b-a569-ec18b4f8354a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/157d8a7e-6b78-435b-a569-ec18b4f8354a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/157d8a7e-6b78-435b-a569-ec18b4f8354a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:39:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe14e3587259596acb4b62fcb031b34a93415b74504445b2948f955e25c59ab20","name":"Certain Death","registered_at":"2026-06-15T21:06:37Z","symbol":"NIM0831995","token_address":"0x3a6b8bf7c5635bc0f3494c7265db6377b1c3e332","type":"artist","uuid":"157d8a7e-6b78-435b-a569-ec18b4f8354a"}
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 0xe14e3587259596acb4b62fcb031b34a93415b74504445b2948f955e25c59ab20. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/157d8a7e-6b78-435b-a569-ec18b4f8354a.json and https://artists.proofprofile.net/proofs/artist/157d8a7e-6b78-435b-a569-ec18b4f8354a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:39:24Z
  text: {"copyright_id":"0xe14e3587259596acb4b62fcb031b34a93415b74504445b2948f955e25c59ab20","name":"Certain Death","registered_at":"2026-06-15T21:06:37Z","symbol":"NIM0831995","token_address":"0x3a6b8bf7c5635bc0f3494c7265db6377b1c3e332","type":"artist","uuid":"157d8a7e-6b78-435b-a569-ec18b4f8354a"}
album: Certain Death
  type: MusicAlbum
  date published: 2023-06-11
album: When She Ain't Around
  type: MusicAlbum
  date published: 2023-09-02
album: Paranoid
  type: MusicAlbum
  date published: 2024-08-11
album: NHR
  type: MusicAlbum
  date published: 2024-09-13
album: Strange Garden
  type: MusicAlbum
  date published: 2024-10-17
album: To The Sea
  type: MusicAlbum
  date published: 2025-06-01
  track: To The Sea
    type: MusicRecording
    duration: PT6M31S
    duration ms: 391579
    explicit: false
    by artist: Certain Death
    in album: To The Sea
      type: MusicAlbum
      date published: 2025-06-01
    genre: sludge metal
    isrc code: QZNWV2591539
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T10:37:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x087e952bd5b39bb88972beba614ad314467f93d3cc4e8b5868c3a062ee418204
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959123
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959123
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWV2591539
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T11:35:32Z
    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 0x087e952bd5b39bb88972beba614ad314467f93d3cc4e8b5868c3a062ee418204. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZNWV2591539.
      date published: 2026-07-22T11:35:32Z
    audio: To The Sea
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 154.047
      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: 0.361
      additional property: Energy
        type: PropertyValue
        value: 0.647
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.136
      additional property: Liveness
        type: PropertyValue
        value: 0.343
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.507
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.451
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: White Clouds
  type: MusicAlbum
  date published: 2025-07-24