How cross-chain bridges work and why $4 billion has been stolen from themHow cross-chain bridges work and why $4 billion has been stolen from themHow cross-chain bridges work and why $4 billion has been stolen from them
Introduction Blockchains do not talk to each other. Ethereum cannot read Solana’s state. Arbitrum cannot verify a transaction on Avalanche. Each chain maintains its own ledger, its own consensus, and its own finality rules. This isolation is a feature of…