Real Face
type: MusicGroup
description: "Real Face" is a song written by Shikao Suga, Joker, Tak Matsumoto and Chokkaku for the debut single and debut album of the Japanese boy band, KAT-TUN. It was released on March 22, 2006, and debuted o
popularity: 5
followers: 1044
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdaf580ae4144bc2e18b174e1e54d62af2c4c0fc42e52d5fd52ed457ef6f9797d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/48a32800-1711-4e4d-8d77-13ba68a50b70.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/48a32800-1711-4e4d-8d77-13ba68a50b70.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/48a32800-1711-4e4d-8d77-13ba68a50b70
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdaf580ae4144bc2e18b174e1e54d62af2c4c0fc42e52d5fd52ed457ef6f9797d","name":"Real Face","registered_at":"2026-06-16T15:14:14Z","symbol":"NIM1091622","token_address":"0xe73e981dc3104d62c5ed032971d2e6019bcd2045","type":"artist","uuid":"48a32800-1711-4e4d-8d77-13ba68a50b70"}
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 0xdaf580ae4144bc2e18b174e1e54d62af2c4c0fc42e52d5fd52ed457ef6f9797d. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48a32800-1711-4e4d-8d77-13ba68a50b70.json and https://artists.proofprofile.net/proofs/artist/48a32800-1711-4e4d-8d77-13ba68a50b70.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xdaf580ae4144bc2e18b174e1e54d62af2c4c0fc42e52d5fd52ed457ef6f9797d","name":"Real Face","registered_at":"2026-06-16T15:14:14Z","symbol":"NIM1091622","token_address":"0xe73e981dc3104d62c5ed032971d2e6019bcd2045","type":"artist","uuid":"48a32800-1711-4e4d-8d77-13ba68a50b70"}
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  type: MusicAlbum
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