| title | ProofBridge: Trustless Cross-Chain Asset Transfers |
|---|---|
| description | ProofBridge enables peer-to-peer cross-chain asset transfers using zero-knowledge proofs. No centralized relayers, no custodians — just cryptographic trust. |
ProofBridge is a decentralized cross-chain bridge that lets you transfer assets between blockchain networks without trusting any third party. Instead of routing funds through a centralized custodian or validator committee, ProofBridge uses zero-knowledge proofs and direct peer-to-peer matching between liquidity providers (Makers) and bridge users (Bridgers).
Connect your wallet and make your first cross-chain transfer in minutes. Understand the peer-to-peer bridging model and the role of ZK proofs. Step-by-step guide to bridging tokens across supported networks. Become a Maker and earn fees by providing cross-chain liquidity. Integrate ProofBridge into your application using the REST API. View all supported chains and available cross-chain routes.ProofBridge matches Bridgers (users who want to transfer assets) with Makers (liquidity providers) through a marketplace of liquidity advertisements. Settlement is secured by zero-knowledge proofs — neither party needs to trust the other or any intermediary.
A Maker creates a liquidity ad on their source chain, locking tokens they want to provide for cross-chain transfers. A Bridger selects an ad and deposits the source-chain token on the OrderPortal contract. This creates a cryptographically signed order. The relayer generates a zero-knowledge proof attesting that the deposit exists in the on-chain Merkle tree, without revealing private data. The ZK proof is submitted to both chains simultaneously, releasing the Bridger's destination tokens and the Maker's source tokens trustlessly. ProofBridge is currently live on **Ethereum Sepolia** and **Hedera Testnet** with Stellar support. Mainnet deployments are on the roadmap.