Cross-Chain Bridge Integration
The Cross-Chain Bridge Integration module in Crosterix allows users to move assets between multiple EVM-compatible blockchains while maintaining transactional privacy and address unlinkability. It provides seamless interoperability across ecosystems (Ethereum, BNB Chain, Polygon, Arbitrum, Avalanche, Base, etc.) by integrating directly with Socket and Li.Fi APIs — two leading non-custodial bridge aggregators.
Unlike traditional bridges that expose both the sender and receiver addresses on public chains, Crosterix introduces Stealth Bridging Mode, enabling users to enter a bridge transaction with one address (A) and receive the bridged asset on a different stealth-generated address (B). This process breaks any on-chain correlation between origin and destination wallets.
Core Concept
Bridging in Web3 usually involves three visible stages:
Origin chain deposit user’s address sends assets to a bridge contract.
Relay or proof generation the bridge backend validates and transfers data to the destination chain.
Destination chain mint or release assets are credited to the same address on the target network.
The Crosterix bridge layer alters stage 3 by redirecting the final output to a stealth address, derived from the user’s main public key. As a result, observers cannot link the sender’s Ethereum address with the receiver’s address on the destination network, even though the transfer is cryptographically valid and verifiable.
Stealth Bridging Mode
When “Stealth Mode” is enabled inside the DApp:
Crosterix generates a new stealth address on the destination chain using elliptic-curve Diffie–Hellman derivation from the user’s main wallet key.
The bridge route (via Socket or Li.Fi) is fetched directly from the user’s browser.
The user signs the bridge transaction locally no private data or logs are transmitted to any server.
The bridge completes the swap/transfer and delivers the asset to the stealth address B.
Only the original wallet owner can detect and recover those assets, because only they can derive the private key that matches the stealth address.
This method provides end-to-end anonymity across chains while keeping full composability with existing DeFi bridges.
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