Face Off
type: MusicGroup
genre: doom metal
genre: post-rock
description: Face Off may refer to: Film and television Face-Off (1971 film), a Canadian hockey romance film Face/Off, a 1997 American action film Invertigo (roller coaster), a ride in Ohio, formerly known
popularity: 2
followers: 554
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe61e361760f9e042af8504b43ba095e2faf47ac7e573687f414546e34b5370ed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5fde6e5f-faa6-4e3b-8cca-583bc65b507b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5fde6e5f-faa6-4e3b-8cca-583bc65b507b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5fde6e5f-faa6-4e3b-8cca-583bc65b507b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe61e361760f9e042af8504b43ba095e2faf47ac7e573687f414546e34b5370ed","name":"Face Off","registered_at":"2026-06-16T22:56:58Z","symbol":"NIM1202031","token_address":"0x719f271cbc28201400bb539f2906cd30952b1159","type":"artist","uuid":"5fde6e5f-faa6-4e3b-8cca-583bc65b507b"}
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 0xe61e361760f9e042af8504b43ba095e2faf47ac7e573687f414546e34b5370ed. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5fde6e5f-faa6-4e3b-8cca-583bc65b507b.json and https://artists.proofprofile.net/proofs/artist/5fde6e5f-faa6-4e3b-8cca-583bc65b507b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xe61e361760f9e042af8504b43ba095e2faf47ac7e573687f414546e34b5370ed","name":"Face Off","registered_at":"2026-06-16T22:56:58Z","symbol":"NIM1202031","token_address":"0x719f271cbc28201400bb539f2906cd30952b1159","type":"artist","uuid":"5fde6e5f-faa6-4e3b-8cca-583bc65b507b"}
album: Massive
  type: MusicAlbum
  date published: 2017-05-31
album: Lush
  type: MusicAlbum
  date published: 2017-10-29
album: Machines
  type: MusicAlbum
  date published: 2020-09-18