Headhunter D.C.
type: MusicGroup
genre: black metal
genre: death metal
popularity: 5
followers: 4977
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9c8568267060e1dc937a7a4a5f733f4cb5ce97b2168a65b1c2d775e31f3628f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954004
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954004
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/32f97376-5482-4a07-beed-3cc10445b1ba.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/32f97376-5482-4a07-beed-3cc10445b1ba.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/32f97376-5482-4a07-beed-3cc10445b1ba
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T21:01:04Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc9c8568267060e1dc937a7a4a5f733f4cb5ce97b2168a65b1c2d775e31f3628f","name":"Headhunter D.C.","registered_at":"2026-06-16T07:20:05Z","symbol":"NIM0978488","token_address":"0xe090d46d72af5becb774139cda2e19b15b41461c","type":"artist","uuid":"32f97376-5482-4a07-beed-3cc10445b1ba"}
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 0xc9c8568267060e1dc937a7a4a5f733f4cb5ce97b2168a65b1c2d775e31f3628f. Chain 2 (Bitcoin): anchored in block 954004 (2026-06-16T21:01:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32f97376-5482-4a07-beed-3cc10445b1ba.json and https://artists.proofprofile.net/proofs/artist/32f97376-5482-4a07-beed-3cc10445b1ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T21:01:04Z
  text: {"copyright_id":"0xc9c8568267060e1dc937a7a4a5f733f4cb5ce97b2168a65b1c2d775e31f3628f","name":"Headhunter D.C.","registered_at":"2026-06-16T07:20:05Z","symbol":"NIM0978488","token_address":"0xe090d46d72af5becb774139cda2e19b15b41461c","type":"artist","uuid":"32f97376-5482-4a07-beed-3cc10445b1ba"}
album: Born… Suffer… Die…
  type: MusicAlbum
  date published: 1991
album: God's Spreading Cancer
  type: MusicAlbum
  date published: 2007-06-05
album: God's Spreading Cancer
  type: MusicAlbum
  date published: 2007-06-05
album: God's Spreading Cancer
  type: MusicAlbum
  date published: 2010-02-02
album: God's Spreading Cancer
  type: MusicAlbum
  date published: 2010-02-02
album: Punishment at Dwan
  type: MusicAlbum
  date published: 2011