Undertxker
type: MusicGroup
genre: darkwave
popularity: 2
followers: 446
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd88b3bf1cf3da80993865810b22f33d5115e347cb316e5bbe1f75e4f460443d7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954097
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954097
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7afa5e95-7cbc-42bf-b707-be34e9822889.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7afa5e95-7cbc-42bf-b707-be34e9822889.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7afa5e95-7cbc-42bf-b707-be34e9822889
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T13:13:51Z
additional property: OTSCanonicalRecord
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 0xd88b3bf1cf3da80993865810b22f33d5115e347cb316e5bbe1f75e4f460443d7. Chain 2 (Bitcoin): anchored in block 954097 (2026-06-17T13:13:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7afa5e95-7cbc-42bf-b707-be34e9822889.json and https://artists.proofprofile.net/proofs/artist/7afa5e95-7cbc-42bf-b707-be34e9822889.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T13:13:51Z
album: NIGHT OF THE LIVING DEAD
  type: MusicAlbum
  date published: 2022-02-23
album: REGRETS
  type: MusicAlbum
  date published: 2022-05-04
album: THEY LIVE
  type: MusicAlbum
  date published: 2022-06-03
album: I DON'T NEED A BRAIN
  type: MusicAlbum
  date published: 2023-03-31
album: IN THE EVENING
  type: MusicAlbum
  date published: 2023-06-30
album: I GIVE UP
  type: MusicAlbum
  date published: 2023-08-11
album: BLOODLUST
  type: MusicAlbum
  date published: 2023-10-13
album: RUNAWAY KILLER
  type: MusicAlbum
  date published: 2024-02-02
album: LEFT 4 DEAD
  type: MusicAlbum
  date published: 2024-03-01
album: LEAVE A MARK
  type: MusicAlbum
  date published: 2024-03-29