Zircon Gamma
Summary
Zircon Gamma was a Moonriver-deployed automated market maker (AMM) built by Zircon Labs that pioneered single-sided liquidity provision via its Pylon risk-tranching mechanism. On March 18, 2023, an attacker exploited a vulnerability in the protocol's modified Uniswap V2 core across both its Moonriver and BNB Chain deployments, draining approximately $350,000 in user funds. Following the exploit, the ZRG token lost essentially all market value, development activity ceased by mid-2023, and the promised relaunch and debt-repayment plan have not been publicly demonstrated as fulfilled.
Connected Entities
1 entities · 10 linked investigationsTimeline(10 events)
2022-02-01
burnOneSide function first committed to Zircon protocol codebase, introducing the vulnerability later exploited in March 2023.
Zircon Hack Post-Mortem2022-09-01
Zircon Gamma (canary deployment) launched on Moonriver mainnet with the ZRG token and the Pylon single-sided liquidity system.
Zircon Gamma Is Live on Moonriver Mainnet — Zircon Finance Blog2022-09-10
CoinTelegraph reported on Zircon Finance mainnet launch as a novel impermanent loss mitigation DEX on Moonriver.
CoinTelegraph2022-10-01
Moonbeam Foundation awarded Zircon Finance a Moonriver ecosystem grant of 15,000 MOVR to support liquidity bootstrapping.
Past Grant Recipients — Moonbeam Foundation2023-03-18
Attacker (0xfe7a244CF06e9296c3233f47b315A720bad542f7) exploited the burnOneSide vulnerability on Moonriver and BNB Chain, draining approximately $350,000 in user funds across all pools. The team paused Pylon contracts but the attack bypassed the Pylon entirely.
Zircon Hack Post-Mortem — Zircon Finance Blog2023-03-18
Zircon Finance announced the hack on X/Twitter, stating the team was in preliminary stages of analyzing the attack.
Zircon Finance on X/Twitter2023-03-20
Community thread opened on the Moonbeam Forum challenging the Foundation's due diligence in granting ecosystem funds and social promotions to Zircon Finance.
Zircon Finance Hack — Moonbeam Community Forum2023-04-03
Last recorded substantive commit to the zircon-protocol-2 GitHub repository, indicating development on the core protocol ceased.
Zircon Finance GitHub Organization2023-07-28
Last recorded commit to the zircon-interface GitHub repository, after which all public development activity went silent.
Zircon Finance GitHub Organization2023-07-01
Zircon Finance submitted a post-hack ecosystem grant draft proposal to Moonbeam Foundation requesting 1 million GLMR, committing to prioritize security spending over liquidity mining if funded.
Zircon Finance Ecosystem Grant Draft Proposal — Moonbeam ForumDecision Log
- hash: HcPfrHfQvNsjjDRaNnzRvy2DDEJGsR9fXhMfBCcJYdfg
This investigation is cryptographically anchored to the Solana blockchain (1 event). 5 of 18 cited source URLs have an Internet Archive snapshot.
model: claude-sonnet-4-5
generated: 5/4/2026, 2:54:43 AM
last updated: 7/24/2026, 5:45:17 PM
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