Blockchain investigator ZachXBT said he is offering up to $10,000 for insider information related to Heisenberg Guru, a Hong Kong market maker also referred to as HSBG. He alleged that the firm manipulated centralized exchange markets, including trades around RIVER. ZachXBT said credible evidence from whistleblowers could qualify for rewards. The claims remain allegations and the provided content does not include supporting evidence or a response from Heisenberg Guru.