Order books by their nature facilitate price discovery through bid and ask orders and the exchange uses order matching technology to consummate trades. In the case of our Spot-Priced Liquidity queues, they behave more like a decentralized OTC desk. The Spot-Priced queues do not do price discovery and rely on a secure adaptor mechanism that uses either oracle provided spot prices or market-maker-defined offers to enable trades. In the case of pegged queues and group queues, it can be said that they can be considered a ‘flat priced’ order book. In the case of Offer-Priced queues, the ‘offers’ have a resemblance to order books, but the matching mechanism more resembles an OTC RFQ process.