What is a bridge?
A bridge is a tool that lets you move assets from one blockchain to another. Since most blockchains are isolated systems, bridges create the connections that allow tokens to exist across multiple networks.
Why bridges exist
Isolated blockchains - Bitcoin, Ethereum, Solana, and others cannot directly interact.
Cross-chain utility - tokens often need to be used on different chains for DeFi, NFTs, or payments.
Liquidity access - bridges allow capital to move between ecosystems, unlocking more opportunities for users.
How bridges work
You send your token to a smart contract (or custodian) on the origin chain.
The bridge locks or holds that token.
An equivalent version of the token is minted or released on the destination chain.
If you later bridge back, the wrapped version is burned and your original token is unlocked.
This process creates a wrapped asset - for example, Wrapped Bitcoin (WBTC) on Ethereum is backed 1:1 by BTC locked on the Bitcoin network.
Common use cases
DeFi - moving assets into ecosystems with better lending, staking, or yield opportunities.
NFTs - transferring tokens or NFTs between chains where different marketplaces exist.
Stablecoins - bridging USDC or USDT to faster and cheaper blockchains for payments.
Risks of bridges
Smart contract vulnerabilities - bridges are a common target for hacks.
Custodial risks - some bridges rely on centralised operators who hold the locked assets.
High fees or delays - bridging can take time and often costs more than native transfers.
Warning: Only use reputable bridges, and avoid leaving large balances in them longer than necessary.
Bridges in Wraith Wallet
Wraith Wallet supports popular third-party bridges within the app.
The wallet does not control the bridging process - assets are moved by the bridge provider.
Always review the bridge’s details, fees, and expected time before confirming.
Key points to remember
Bridges let you move tokens between blockchains.
The process usually involves locking the original asset and minting a wrapped version.
Bridges carry additional risks compared to regular transactions.
Wraith Wallet integrates bridges for convenience but does not operate them directly.
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