Head Control System
type: MusicGroup
genre: alternative metal
genre: avant-garde
genre: progressive metal
description: Head Control System is a cross-national rock/metal band featuring portuguese Daniel Cardoso (ex-Anathema, ex-Sirius and ex-Re:aktor) and Norwegian Kristoffer Rygg (of Ulver and ex-Arcturus and ex-Bork
popularity: 6
followers: 2554
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe024c452ce92a6cfbeac3bcd614c9008e2ea731b97afc95124338602eb1dca6
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/bd294f55-45b7-4608-a75f-100b4ef6609e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bd294f55-45b7-4608-a75f-100b4ef6609e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bd294f55-45b7-4608-a75f-100b4ef6609e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfe024c452ce92a6cfbeac3bcd614c9008e2ea731b97afc95124338602eb1dca6","name":"Head Control System","registered_at":"2026-06-20T17:59:32Z","symbol":"NIM1672976","token_address":"0xcf62d0f03dd09cc8f3f0d4da0f6138e392a0fb4f","type":"artist","uuid":"bd294f55-45b7-4608-a75f-100b4ef6609e"}
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 0xfe024c452ce92a6cfbeac3bcd614c9008e2ea731b97afc95124338602eb1dca6. 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/bd294f55-45b7-4608-a75f-100b4ef6609e.json and https://artists.proofprofile.net/proofs/artist/bd294f55-45b7-4608-a75f-100b4ef6609e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xfe024c452ce92a6cfbeac3bcd614c9008e2ea731b97afc95124338602eb1dca6","name":"Head Control System","registered_at":"2026-06-20T17:59:32Z","symbol":"NIM1672976","token_address":"0xcf62d0f03dd09cc8f3f0d4da0f6138e392a0fb4f","type":"artist","uuid":"bd294f55-45b7-4608-a75f-100b4ef6609e"}
album: Murder Nature
  type: MusicAlbum
  date published: 2002
album: Murder Nature
  type: MusicAlbum
  date published: 2006
album: Murder Nature
  type: MusicAlbum
  date published: 2006
album: Murder Nature
  type: MusicAlbum
  date published: 2014-01-01
album: Murder Nature (2023 Remastered)
  type: MusicAlbum
  date published: 2023-11-27