Under the hood and the pool

Each promise is an option you sell to the pool, and why the pool buys them as a hedge.

How it works under the hood

The LP buys your spread through PromiseBook. Our quote signer and your wallet or session key both sign the full terms, and the contract checks configuration, freshness, replay protection, margin, capacity and premium budget. No cancel, buyback or touch settlement.

How it works for the pool

The pool pays the premium for a capped payoff backed by locked margin. Model marks on open spreads aren't spendable cash and don't raise the premium budget or withdrawal capacity.