Ren is a cryptocurrency that aims to bring interoperability to the blockchain ecosystem, facilitating seamless and private cross-chain transactions. Launched in 2018, Ren operates on the Ethereum blockchain and utilizes a novel protocol called RenVM. The core purpose of Ren is to enable users to transfer assets across different blockchains without the need for centralised exchanges, thereby enhancing liquidity and accessibility for decentralised finance (DeFi) participants. RenVM employs a network of decentralised nodes, known as Darknodes, to ensure secure, trustless swaps of cryptocurrencies such as Bitcoin and Zcash into Ethereum-based tokens. By breaking down the barriers of interoperability, Ren not only provides a bridge for various digital assets but also ensures the privacy and security of these transactions through advanced cryptographic methods.