Brave Brothers
type: MusicGroup
description: Kang Dong-chul (, born June 7, 1979), also known by his stage name Brave Brothers, is a South Korean rapper, record producer and songwriter for Brave Entertainment. He was a producer and composer for
popularity: 4
followers: 421
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xff055382b1a033d26565d4ee9e34287bbbed7b8be384fa3c3339290b73d9d284
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aa9d370c-e41f-4d73-8718-e01ddca568fd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aa9d370c-e41f-4d73-8718-e01ddca568fd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/aa9d370c-e41f-4d73-8718-e01ddca568fd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xff055382b1a033d26565d4ee9e34287bbbed7b8be384fa3c3339290b73d9d284","name":"Brave Brothers","registered_at":"2026-06-20T09:27:04Z","symbol":"NIM1578478","token_address":"0x335d4de8d7ea359290ca6519b2f51da7bd3e1d1a","type":"artist","uuid":"aa9d370c-e41f-4d73-8718-e01ddca568fd"}
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 0xff055382b1a033d26565d4ee9e34287bbbed7b8be384fa3c3339290b73d9d284. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa9d370c-e41f-4d73-8718-e01ddca568fd.json and https://artists.proofprofile.net/proofs/artist/aa9d370c-e41f-4d73-8718-e01ddca568fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0xff055382b1a033d26565d4ee9e34287bbbed7b8be384fa3c3339290b73d9d284","name":"Brave Brothers","registered_at":"2026-06-20T09:27:04Z","symbol":"NIM1578478","token_address":"0x335d4de8d7ea359290ca6519b2f51da7bd3e1d1a","type":"artist","uuid":"aa9d370c-e41f-4d73-8718-e01ddca568fd"}
album: Attitude
  type: MusicAlbum
  date published: 2009-08-18
album: Attitude
  type: MusicAlbum
  date published: 2009-08-18
album: Passionate
  type: MusicAlbum
  date published: 2009-12-08
album: Passionate
  type: MusicAlbum
  date published: 2009-12-08
album: 슬픈음악
  type: MusicAlbum
  date published: 2010-04-02
album: Sad Music
  type: MusicAlbum
  date published: 2010-04-02
album: Morning Noon Evening
  type: MusicAlbum
  date published: 2015-03-13
album: 아침 점심 저녁
  type: MusicAlbum
  date published: 2015-03-13
album: Messengers of Erometism
  type: MusicAlbum
  date published: 2024-12-01