Documentation Index
Fetch the complete documentation index at: https://docs.whtchn.com/llms.txt
Use this file to discover all available pages before exploring further.
Overview
The Whitechain Bridge is a cross-chain solution that enables secure and efficient token transfers between Whitechain and supported blockchain networks. This bridge functionality is available directly inside the Whitewallet Web3 wallet, allowing users to initiate and track bridge transactions without relying on external tools or third-party interfaces. All operations are performed within the wallet using on-chain transactions on both networks. Currently supported routes and assets:- Ethereum ↔ Whitechain (USDC, WBT)
How It Works
- Select networks and asset
- Check balance
- A sufficient balance of the selected asset.
- Enough native chain tokens on the source network to cover fees.
- Initiate the transaction
Key Mechanics
- Tokens are locked in a smart contract or burnt on the source chain.
- A corresponding amount is minted or unlocked on the destination chain.
- Funds are sent directly to the user’s wallet on the destination network.
- A service fee is applied based on transaction execution costs and bridged liquidity.
Fees
The bridge service fee consists of two components:- The destination chain transaction fee.
- A percentage of the bridged amount.
| Asset | Service Fee |
|---|---|
| WBT, USDC | 0.3%, min $0.5 |
Risk Mitigation
- If the source-chain transaction fails, the user’s funds remain safely in their wallet.
- Once the source transaction is confirmed, the bridge guarantees execution on the destination chain.
- If there is insufficient liquidity for a selected asset, the transaction cannot be initiated until liquidity is replenished.
Liquidity Models & Bridging Approaches
The Whitechain Bridge supports two token bridging models:Lock / Unlock Model
- Used for tokens that do not grant mint/burn rights to the bridge.
- Tokens are locked on the source chain and unlocked on the destination chain.
- Liquidity is fully provided and managed by Whitechain.
- If liquidity is temporarily insufficient, users cannot initiate a bridge transaction until it is added.
- Ensures a strict 1:1 backing of assets across chains.
Mint / Burn Model
- Tokens are minted on the destination chain and burned on the source chain.
- The token supply is managed directly by bridge smart contracts.
- No pre-funded liquidity pool is required.
- Guarantees a balanced total token supply across all supported chains.

