Ethos Network Users Slash Kalshi Over Khamenei Market Handling

Background on Ethos Network and Kalshi

Ethos Network is a decentralized reputation system built on Ethereum that enables users to review, vouch for, and slash entities using staked ETH. These actions contribute to a public credibility score designed to improve trust across Web3 applications.

Kalshi is a federally regulated prediction market platform that allows users to trade on real-world events. By early 2026, it had processed over $1 billion in volume across political, economic, and global event markets.

The dispute centers on Kalshi’s “Ali Khamenei out as Supreme Leader?” contract, which saw roughly $54 million in trading volume.

Ethos Network users slash Kalshi over Khamenei market handling

The slash was initiated after Kalshi resolved the Khamenei market following the reported death of Iran’s Supreme Leader in late February.

The contract included a specific rule stating that if Khamenei died, positions would settle at the last traded price before death, rather than at a binary outcome. This design was intended to comply with U.S. regulations that restrict financial gain from violent events.

After the event, Kalshi paused trading, applied the pre-death pricing rule, and refunded trading fees and net losses to users. Despite these actions, critics argued the rule design effectively enabled a death-linked market and created confusion for participants.

Credibility slash mechanics and community voting process

Under Ethos Network rules, slashing requires users to stake ETH to challenge another entity’s credibility score.

If the slash is successful, the target loses credibility points and the slasher receives rewards. If the slash fails, the system returns the penalty and the slasher loses their stake.

In this case, the proposed slash could deduct 208 credibility points from Kalshi if it is upheld. A group of 145 Ethos supporters has backed the challenge, increasing the stake at risk in the outcome.

Kalshi employees respond to Ethos Network slash

Two Kalshi employees responded directly on the Ethos platform, defending the company’s actions and citing CEO Tarek Mansour’s public statements.

Kalshi maintains that it clearly defined its rules in advance and did not modify them after the event occurred. The company also emphasized that it reimbursed users for trading fees and net losses, reportedly exceeding $2.2 million.

Kalshi’s leadership has also indicated that it is implementing user interface improvements to make market rules clearer in future listings.

Market and community reactions to the Kalshi dispute

The credibility dispute has generated mixed reactions across the crypto and prediction market communities.

Some users have supported the Ethos slash, arguing that prediction markets involving death scenarios raise ethical and regulatory concerns. Others have defended Kalshi’s rule-based approach, noting that the company followed its stated framework and reimbursed users.

The case has also sparked broader discussions about how prediction markets should structure event contracts tied to sensitive real-world outcomes.