Polkadot is a heterogeneous multi-chain protocol that enables cross-blockchain transfers of any type of data or asset, not just tokens. Founded by Ethereum co-founder Gavin Wood, Polkadot uses a relay chain architecture that connects multiple specialized blockchains called parachains into a unified network. The platform features shared security across all connected chains, on-chain governance allowing token holders to vote on protocol upgrades, and forkless runtime upgrades. Polkadot's Substrate framework allows developers to build custom blockchains optimized for specific use cases, while XCM (Cross-Consensus Messaging) enables seamless communication between parachains. The ecosystem includes over 50 active parachains spanning DeFi, identity, gaming, IoT, and more. Polkadot 2.0 introduces agile coretime allocation, making blockspace more flexible and accessible.
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