Two Line Filler
type: MusicGroup
genre: hardcore punk
genre: melodic hardcore
popularity: 2
followers: 286
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x57f63af1947f6ead53098d216214da0bd9f01f3053314c20c2d94354ffdd869c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953867
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953867
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/059e30cb-3231-441c-9f53-719efdbbc405.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/059e30cb-3231-441c-9f53-719efdbbc405.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/059e30cb-3231-441c-9f53-719efdbbc405
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:09:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x57f63af1947f6ead53098d216214da0bd9f01f3053314c20c2d94354ffdd869c","name":"Two Line Filler","registered_at":"2026-06-15T15:29:07Z","symbol":"NIM0751471","token_address":"0x3998546ed3cbdc61f30770103b7f78d3a36645f7","type":"artist","uuid":"059e30cb-3231-441c-9f53-719efdbbc405"}
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 0x57f63af1947f6ead53098d216214da0bd9f01f3053314c20c2d94354ffdd869c. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/059e30cb-3231-441c-9f53-719efdbbc405.json and https://artists.proofprofile.net/proofs/artist/059e30cb-3231-441c-9f53-719efdbbc405.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T01:09:47Z
  text: {"copyright_id":"0x57f63af1947f6ead53098d216214da0bd9f01f3053314c20c2d94354ffdd869c","name":"Two Line Filler","registered_at":"2026-06-15T15:29:07Z","symbol":"NIM0751471","token_address":"0x3998546ed3cbdc61f30770103b7f78d3a36645f7","type":"artist","uuid":"059e30cb-3231-441c-9f53-719efdbbc405"}
album: Listener
  type: MusicAlbum
  date published: 1990
album: Listener
  type: MusicAlbum
  date published: 2001-09-01
album: Hades
  type: MusicAlbum
  date published: 2018-01-20