On-chain investigator ZachXBT posted a $10,000 personal bounty on Monday targeting Hong Kong-based market maker Heisenberg Guru, known as HSBG, over allegations of coordinated price manipulation across centralized crypto exchanges including Bitget, Binance, and Gate. ZachXBT named Sion and Chao as core HSBG operators and called out the River token specifically, urging whistleblowers to come forward with chat logs, contracts, or internal communications that demonstrate coordination across those platforms. The bounty was funded from ZachXBT's personal accounts and framed as part of a broader effort to expose Asia-based market makers he described as a cancer to the industry, arguing that major Asian centralized exchanges continue to turn a blind eye to the alleged manipulation happening on their platforms.

The River token has faced sustained scrutiny following a 500% rally earlier in 2026 that raised concerns about supply concentration, with derivatives turnover on the asset at times significantly outpacing spot volume in patterns that traders and analysts flagged as warning signs. The HSBG bounty follows a similar offer ZachXBT posted recently in connection with alleged RAVE token coordination on Bitget, suggesting a pattern of targeted investigations into Asia-based market making operations. Neither HSBG nor its named operators had responded publicly to the bounty post at the time of writing. Whistleblowers are directed to submit evidence through direct messages to ZachXBT rather than through any public form, with credible evidence potentially determining how seriously exchanges treat the latest round of scrutiny.