# ③ Core Smart Contracts

This chapter corresponds to the white paper `3.x`, describing the core contract and value return system of the protocol.

## Contents of this chapter

* `3.1 Cross-chain contract`
* `3.2 LP Pot Contract`
* `3.3 Pledge Contract`
* `3.4 Trading Turbo Contracts`
* `3.5 EM Smart Coin Issuance Contract`
* `3.6 Triple Return Contract`

It is recommended to read it in conjunction with the subsequent token chapters to build a complete view of "Mechanism -> Assets -> Incentives".