FuntionX Core Gravity Bridge
FuntionX Core Gravity Bridge explained. Gravity is the force by which a body draws objects toward its center. Much like gravity, the f(x)Core Gravity Bridge is designed to pull liquidity from the Ethereum ecosystem into the Cosmos ecosystem in a trustless, decentralized and secure manner.
What Is f(x)Core Gravity Bridge?
The f(x)Core Gravity Bridge is a trustless, secure and decentralized bridge between Ethereum and the Cosmos ecosystems. Powered by a Cosmos SDK with the aid of smart contracts, the bridge uses a validator set to sign transactions, instead of a multi-sig account or an authorized group of actors.
The bridge allows the seamless addition of ERC20 tokens to the bridge, and thereafter the free movement of ERC20 tokens between the Ethereum and Cosmos ecosystems.
For example, a user wants to participate in a yield farming protocol on f(x)EVM and he/she needs USDT. They can bridge the USDT from Ethereum (or other EVM compatible chain) to f(x)EVM by using the f(x)Core Gravity Bridge. The bridge will lock the token transferred from the sender chain (we are using the Ethereum chain as an example) and mint the representation of that token on the receiver chain (in this example, it is f(x)EVM).
FEATURES
The f(x)Core Gravity Bridge is simple by design and is easy to use, also offering greater security. It does away with long lines of code and harnesses the existing consensus engines of both EVM chains and f(x)Core.
Highly decentralized
- The movement of funds is controlled by validators
- The addition and removal of validators in the group are controlled by the validators
- The addition of new types of tokens to the bridge can be done through governance
Unified token
The unification of the same token from different chains to form a single unified token on f(x)Core that is chain-agnostic
Secure
Validators cannot sign or submit bridge messages not agreed upon by consensus.
Gas Efficient
Rollup-style batch transactions reduce individual users’ gas costs
The Building Blocks of the f(x)Core Gravity Bridge
The Gravity Bridge has three defined components
- A Solidity contract on Ethereum
- A Cosmos SDK module on the Gravity Bridge blockchain
- A Cosmos SDK module: fxcore-ERC20
How does it work?
Like most cross-chain bridges, the Gravity Bridge involves locking up a native token/coin on one side of the bridge and then minting a representation of that token on the other side of the bridge. On the way back, the representation of the token burns and then unlock on the native chain.
When a representation of the token is mint on the f(x)Core chain, it will form a unify token that is chain agnostic. Example: ETH-USDT, Polygon-USDT, Tron-USDT cross-chain through the Gravity Cross-Chain Bridge, then converted by the fx-ERC20 module and unified into an FX-USDT ERC20 Token upon entering the f(x)EVM. Below is a diagram to show how the bridge works.
How to Use Gravity Bridge
For users: f(x)Wallet will soon be able to support the Gravity Bridge
For developers: You may refer to this document to learn how to add your token to the Gravity Bridge
ABOUT FunctionX
FunctionX is a scalable, open, and decentralized ecosystem, enabling all to build entirely on and for the blockchain
