Solution Designs

Here, we outline some of the design decisions we made to solve the problems we have identified inthe previous session.

Use Hydra L2 to Remove Order Costs

Enable Zero Order Placing / Cancelling Cost

All trading activities of DeltaDeFi happen within Hydra, where there is exactly 0 cost in performing any on-chain action in the L2 environment.

Offchain Order Book

Enable Instant Order Confirmation

We employ the simplest and most widely used order matching rule, uniformly in DeltaDeFi - price-time priority. We will always provide the best price on the opposite side for the users in the scenario of filling orders (e.g. market order, enhanced limit order, etc). In case there are multiple orders with the same best price, first-in-first-out will be applied.

We Build the Transaction, and Everyone Can Verify

Enable Programmatic Access / API Trading

We build all the Cardano transactions needed to interact with DeltaDeFi through our backend. So, normal users do not have to know anything about Cardano to trade on DeltaDeFi. In case of doubt, users can verify whether the transaction is constructed as expected before submitting.