Black Line
type: MusicGroup
genre: ebm
genre: industrial
popularity: 2
followers: 1601
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd0f99e0ee3815e51b06b0caa553a17d0f9eeb335ec4a0f03b3a353994af717c5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953949
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953949
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/23a900a7-7bc4-446d-b9fc-06a2b0fb3745.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/23a900a7-7bc4-446d-b9fc-06a2b0fb3745.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/23a900a7-7bc4-446d-b9fc-06a2b0fb3745
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:28:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd0f99e0ee3815e51b06b0caa553a17d0f9eeb335ec4a0f03b3a353994af717c5","name":"Black Line","registered_at":"2026-06-16T01:59:34Z","symbol":"NIM0901935","token_address":"0x57bdc5285c020f28fa17231728ad0b00d14c5782","type":"artist","uuid":"23a900a7-7bc4-446d-b9fc-06a2b0fb3745"}
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 0xd0f99e0ee3815e51b06b0caa553a17d0f9eeb335ec4a0f03b3a353994af717c5. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23a900a7-7bc4-446d-b9fc-06a2b0fb3745.json and https://artists.proofprofile.net/proofs/artist/23a900a7-7bc4-446d-b9fc-06a2b0fb3745.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0xd0f99e0ee3815e51b06b0caa553a17d0f9eeb335ec4a0f03b3a353994af717c5","name":"Black Line","registered_at":"2026-06-16T01:59:34Z","symbol":"NIM0901935","token_address":"0x57bdc5285c020f28fa17231728ad0b00d14c5782","type":"artist","uuid":"23a900a7-7bc4-446d-b9fc-06a2b0fb3745"}
album: Treason, Sedition, And Subversive Activities
  type: MusicAlbum
  date published: 2017-05-26
album: Sedition
  type: MusicAlbum
  date published: 2019-04-12
album: Sedition
  type: MusicAlbum
  date published: 2019-04-12
album: Layers
  type: MusicAlbum
  date published: 2019-11-15
album: Layers
  type: MusicAlbum
  date published: 2019-11-15
album: Keep It Real
  type: MusicAlbum
  date published: 2021-08-27