Fourth Face
type: MusicGroup
genre: alternative metal
genre: nu metal
genre: rap metal
popularity: 2
followers: 258
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe5301488a9b42b7ee6833bbe93d32ed73160eea5190df815321730f8ad1ca392
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954593
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954593
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bdf49843-2006-4e6a-b0d5-1f243b9c6076.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bdf49843-2006-4e6a-b0d5-1f243b9c6076.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bdf49843-2006-4e6a-b0d5-1f243b9c6076
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:46:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe5301488a9b42b7ee6833bbe93d32ed73160eea5190df815321730f8ad1ca392","name":"Fourth Face","registered_at":"2026-06-20T18:12:25Z","symbol":"NIM1673492","token_address":"0x136ccd9172ef0132319a2fd192a208944a871e0d","type":"artist","uuid":"bdf49843-2006-4e6a-b0d5-1f243b9c6076"}
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 0xe5301488a9b42b7ee6833bbe93d32ed73160eea5190df815321730f8ad1ca392. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bdf49843-2006-4e6a-b0d5-1f243b9c6076.json and https://artists.proofprofile.net/proofs/artist/bdf49843-2006-4e6a-b0d5-1f243b9c6076.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:46:01Z
  text: {"copyright_id":"0xe5301488a9b42b7ee6833bbe93d32ed73160eea5190df815321730f8ad1ca392","name":"Fourth Face","registered_at":"2026-06-20T18:12:25Z","symbol":"NIM1673492","token_address":"0x136ccd9172ef0132319a2fd192a208944a871e0d","type":"artist","uuid":"bdf49843-2006-4e6a-b0d5-1f243b9c6076"}
album: Sonido Triste
  type: MusicAlbum
  date published: 2007-10-01