What is Polkadot (DOT)? A Quick History LessonPolkadot is a multichain network designed for interoperability?a way for many specialized blockchains to plug into a shared security layer and talk to each other. The idea was laid out by Ethereum co-founder Gavin Wood in a 2016 white paper that proposed a heterogeneous multi-chain with a minimal ?relay? core and many flexible ?parachains.?
In practice, Polkadot?s relay chain handles consensus and security, while parachains provide the features users actually touch: DeFi, gaming, identity, data availability, and more. The result is a network that aims to scale by running different blockchains in parallel?and letting them exchange messages natively.
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