Contraction Vault

The vault that defends the price.

Contraction Vault: in and out

Contraction VaultHolds ETH. Never sells.

Range-bound defence: buys UNITED on a sharp price drop. Bought UNITED is burned.
By hand: the team may buy UNITED and add liquidity to the pool.

It stacks ETH in every regime. It buys only when the price triggers the defence, or when the team uses it by hand.

Range-bound defence

Range-bound defence over one rescueIllustrative

1 Trigger: the 30-minute TWAP is 10% below the TWAP of 24 hours earlier. A 24-hour rescue opens (shaded).
Injections, one every 4 hours, each a sixth of the day's budget. Bought UNITED is burned.
2 Stop: the price has recovered 5%. The remaining injections are cancelled (outlined).

Illustrative price path. The trigger, the timing of the injections and the stop follow the rules below.

Rule	Value
Watches	Price, not flow
Trigger	30-minute TWAP at least 10% below the TWAP of 24 hours earlier
Rescue	24 hours, with a budget that would lift the protocol's own position by half the drop
Execution	6 injections, one every 4 hours, each a sixth of the day's budget
Stop	Remaining injections are cancelled once the price has recovered 5%
Daily cap	At most 10% of the vault in any 24 hours: 39.2 ETH of the 392 ETH at launch after a full genesis sale, about 6.53 ETH per injection
Weekly cap	At most 25% of the vault in any 7 days
Last line	20% of the vault's high-water mark is kept, and used only if the drop reaches 30%
Bought UNITED	Burned; the defence never sells

The team may use the vault by hand to buy UNITED and add liquidity to the pool when it judges it needed.
It cannot sell UNITED or remove liquidity.
Every action is posted with a reason.

A buyer, not a floor

Nothing is redeemable against the Contraction Vault, and it cannot promise a price.

The team Safe runs buybacks and the range-bound defence until they are opened to anyone.
A one-way switch makes their execution permissionless; once on, it stays on. See How a change happens.