Bridge
Quick Answer
A blockchain bridge enables the transfer of tokens between separate blockchain networks by locking tokens on the source chain and minting equivalents on the destination chain.
Full Definition
A blockchain bridge is a protocol that enables the transfer of tokens and data between two separate blockchain networks. Bridges lock tokens on the source chain and mint equivalent tokens on the destination chain. They enable multi-chain payment acceptance by allowing a customer paying on Polygon to settle on Ethereum, for example. Bridge security is critical — vulnerabilities in bridges have led to some of the largest exploits in DeFi history.
Related Terms
BEP-20
BEP-20 is the token standard for creating fungible tokens on BNB Chain, similar to ERC-20 on Ethereum, commonly used for stablecoins in payment settlement due to low fees.
Block
A block is a data structure containing a batch of validated transactions permanently recorded on a blockchain, with each block cryptographically linked to the previous one.
Block Confirmation
A block confirmation occurs when a transaction is included in a block added to the blockchain. More confirmations mean greater finality and lower risk of reversal.
Block Explorer
A block explorer is a web tool for searching and verifying blockchain transactions, addresses, and smart contracts. Examples include Etherscan and Solscan.
Blockchain
A blockchain is a distributed, immutable digital ledger that records transactions across a network of computers, eliminating intermediaries and reducing settlement times from days to seconds.