# COTI

> COTI is the programmable privacy layer for Web3, built for enterprises, builders, and agents. Powered by Garbled Circuits and the COTI Nightfall ZK rollup, COTI enables encrypted, compliant computation across DeFi, AI, and other on-chain applications.

COTI's V2 architecture is built on Garbled Circuits (GC), a cryptographic technique for computing over encrypted data that is designed to be lighter and faster than alternatives such as Fully Homomorphic Encryption (FHE) and approaches based solely on Zero-Knowledge proofs (ZK). This enables private smart contracts, confidential ERC20/ERC721 tokens, and compliant on-chain data while preserving full EVM programmability.

Key facts:
- Native token: COTI, used for gas, staking, and node rewards.
- Core innovation: Garbled Circuits enable computation on encrypted data, so sensitive inputs stay private throughout execution.
- Privacy Portal: COTI V2's dApp for converting supported ERC20 tokens into private tokens, holding encrypted balances, and sending confidential transfers, with decryption handled locally via the COTI MetaMask Snap.
- Privacy-on-Demand (PoD): a framework and SDK for integrating confidentiality into dApps, including on other chains. PoD developer tutorials currently run on the Ethereum Sepolia testnet.
- Node Ecosystem: community-run Full Node licenses and treasury pools secure the network and process private computations, earning staking rewards.
- Ecosystem: privacy-preserving DeFi (PriveX perp-DEX), real-world assets (RWAs), confidential payments, and AI-agent applications with private agent-to-agent messaging.

Network details (COTI Mainnet): RPC https://mainnet.coti.io/rpc, Chain ID 2632500, currency symbol COTI, block explorer https://mainnet.cotiscan.io.

## Core technology
- [Documentation home](https://docs.coti.io/coti-documentation): Full technical documentation for the COTI V2 network.
- [How COTI works](https://docs.coti.io/coti-documentation/how-coti-works): Overview of Garbled Circuits and confidential computation on COTI.
- [Garbled Circuits (conceptual overview)](https://docs.coti.io/coti-documentation/how-coti-works/introduction/garbled-circuits): How garbling enables private computation, from Yao's Millionaires' Problem to on-chain confidentiality.
- [COTI vs other privacy approaches](https://docs.coti.io/coti-documentation/how-coti-works/advanced-topics/coti-vs-others): Why COTI uses Garbled Circuits compared with FHE, ZK, and MPC.

## Developers
- [Quickstart](https://docs.coti.io/coti-documentation/build-on-coti/quickstart): Step-by-step guide to start building on COTI in Solidity, TypeScript, or Python.
- [Developer tools](https://docs.coti.io/coti-documentation/build-on-coti/tools): SDKs (TypeScript/Ethers.js, Python/Web3.py), Hardhat, Remix plugin, MetaMask Snap, and the Developer Sandbox.
- [Testnet faucet](https://docs.coti.io/coti-documentation/networks/testnet/faucet): Get test COTI for development on the COTI testnet.
- [Private Messaging / AI agents](https://docs.coti.io/coti-documentation/private-messaging): SDK, rewards, and skills for confidential agent-to-agent messaging on COTI.
- [GitHub (coti-io)](https://github.com/coti-io): Official open-source repositories, including smart contracts and node software.
- [Smart contracts](https://github.com/coti-io/coti-contracts): Garbled Circuits MPC contracts and private ERC20/ERC721 implementations (Apache-2.0).

## Products & apps
- [Privacy Portal](https://docs.coti.io/coti-documentation/coti-privacy-portal): COTI V2's dApp for minting private tokens, managing encrypted balances, and sending confidential transactions.
- [Privacy-on-Demand](https://docs.coti.io/coti-documentation/privacy-on-demand): Framework and SDK for adding privacy to dApps, with developer tutorials on Ethereum Sepolia.
- [COTI Bridge](https://bridge.coti.io/): Bridge COTI and assets to and from the COTI network.
- [COTI Earn](https://earn.coti.io/): Earn rewards by completing missions across the COTI ecosystem.
- [COTI Treasury](https://treasury.coti.io/): Stake COTI and participate in treasury pools.
- [COTI Nodes dashboard](https://nodes.coti.io/): Monitor node health, track rewards, and manage COTI nodes.
- [COTI Explorer](https://explorer.coti.io/): Block explorer for COTI transactions, tokens, and contracts.
- [PriveX](https://cotinetwork.medium.com/a-new-era-of-defi-privex-is-now-live-on-coti-mainnet-0213ecf32e25): Privacy-preserving perpetual DEX for human and AI trading agents.

## Token & network
- [COTI V2 whitepaper (PDF)](https://coti.io/files/coti_v2_whitepaper.pdf): Technical whitepaper for COTI V2 and Garbled Circuits.
- [Mainnet & networks](https://docs.coti.io/coti-documentation/networks/mainnet): COTI Mainnet connection details, including RPC, chain ID, and explorer.
- [Node ecosystem litepaper (PDF)](https://coti.io/files/coti_nodes_litepaper.pdf): How Full Node licenses, staking, and treasury pools work.

## Community & support
- [Support & community](https://docs.coti.io/coti-documentation/support-and-community): Official support channels and community links.
- [Medium blog](https://cotinetwork.medium.com/): Long-form articles, roadmaps, and product launches.
- [X / Twitter](https://twitter.coti.io): Official COTI account.
- [Discord](https://discord.coti.io): Developer and community chat.
- [Telegram](https://telegram.coti.io): Official Telegram community.
- [YouTube](https://youtube.coti.io): Video explainers, AMAs, and tutorials.

## Optional
- [2026 roadmap](https://cotinetwork.medium.com/coti-2026-taking-privacy-mainstream-67df5c1fe422): COTI's strategy for taking privacy mainstream across multiple chains.