Trigger

A policy pays when someone calls settle and the contract still sees the drop. There is no crash-speed window. A slow fall to the line pays the same as a fast one. A wick that recovers does not.

DefinitionsCopy Anchor Link

• s is the drop, as a fraction. 80 percent means s = 0.80.
• L is 5 minutes.
• P(t) is the time-weighted average price over the L minutes ending at t, in the pool's quote asset.
• activeFrom is purchase time plus 30 minutes.
• The entry is P(activeFrom). A pump after that does not move the line.

The four checksCopy Anchor Link

settle succeeds only when:

1. activeFrom <= now <= expiry
2. P(now) <= (1 - s) × P(entry)
3. The buyer's balance is still at least the amount stored at purchase.
4. Persistence. The same comparison holds at each of the last K observations (default 3). Each observation is in a different block, and each is at or after activeFrom. Each one is judged on its own 5-minute average, not on a single print.

The caller passes only the policy id. The vault reads the averages itself.

Worked exampleCopy Anchor Link

A 90 percent policy, 7 days. Entry average is 1.0. On day 6 the 5-minute average is 0.09, and the last three recordings are still there. The policy can pay. A print at 0.09 that recovers to 0.5 before those three recordings cannot.

An 80 percent policy pays only if price is at or below 20 percent of the entry. The average fully reflects a dump only after several minutes at the new price, and then the last three samples have to agree.

What the line is notCopy Anchor Link

• Not the spot price at the moment you click buy.
• Not the high after you buy.
• Not a 5-minute crash window.
• Not an off-chain chart.

If you dump before activeFrom, the entry average is the crashed price and settle has no drop left to see.