Developer Guide

This guide is for developers who want to build, integrate, and interact with PrivateERC20 tokens on COTI.

Whether you're:

• deploying a new private token

• integrating privacy into an existing smart contract

• writing tests

• connecting a frontend application

this guide walks you through the full development process.

What you'll learn

By the end of this guide, you will be able to:

• understand what PrivateERC20 is and how it differs from a standard ERC20

• create your own private token by extending the base contract

• mint and burn tokens using both public and encrypted amounts

• work with encrypted balances

• send encrypted transactions from a React app using ethers.js and the COTI SDK

What this guide covers

This guide follows the full lifecycle of a PrivateERC20 token:

• understanding the PrivateERC20 model

• creating and deploying a private token

• minting and burning tokens

• reading encrypted balances

• sending encrypted transactions from a frontend