Bridge (Cross-Chain Bridge)
A protocol that transfers tokens or data between different blockchain networks.
Explained Simply
Bridges let you move crypto between blockchains — for example, sending ETH from Ethereum to Arbitrum or moving USDC from Ethereum to Solana. They work by locking tokens on one chain and minting equivalent tokens on the other. Bridges are essential for multi-chain DeFi but carry significant risk — bridge hacks are among the largest in crypto history (Ronin: $625M, Wormhole: $320M). Always use well-audited bridges and start with small test transactions.
Example
Using the official Arbitrum bridge to move ETH from Ethereum mainnet to Arbitrum One for cheaper DeFi transactions.
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