Seller sale · SUPRA -> wCOSMO · Mainnet (chain 8)
Buy wCOSMO from the project treasury
A capped, floor-protected seller sale: you pay SUPRA, the on-chain contract pays out wCOSMO from a pre-funded inventory. Every trade needs a signed server quote AND passes the on-chain floor, limit and signature checks.
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Read this before buying anything
- This is a seller sale. You are buying wCOSMO from the project treasury, not on an order book. The seller sets a protected minimum price (on-chain floor) below which no trade can settle.
- The price terms are shown individually — Atmos TWAP, maker spread, floor and effective ask — plus which term won. The Atmos pool is a small market reference (~$9.4k TVL at design time; moving its spot ~1% costs roughly $23), NOT an oracle. The floor and the hard caps are the actual protection.
- Hard on-chain caps: 250,000 wCOSMO per trade, 1,000,000 per rolling 24h, 2,000,000 lifetime — then the contract closes itself permanently. No admin can raise these without a package upgrade.
- What the server signs vs. what the chain enforces: the quote server only signs offers. The chain independently re-checks buyer, chain id, module address, floor, all caps, quote expiry and the signature — a quote that violates any of them cannot settle.
- Residual risk, stated plainly: if the quote server key were compromised, an attacker could sell the remaining capped inventory AT the floor price (never below). Worst case equals the remaining cap times the gap between market price and floor — bounded, and bounded only because floor and caps are on-chain.
- Exit path: wCOSMO can be unwrapped 1:1 to $COSMO at any time (see the wCOSMO guide); selling is only possible on Atmos at whatever liquidity exists there. There is NO buy-back commitment.