Polkadot's Shared Security Model Empowers Smaller Chains

The Polkadot ecosystem is a network of blockchains that connect back to one central relay chain, sharing security and consensus. This architecture allows smaller chains to plug into a shared system without building their own validator network from scratch.

Polkadot Hub sits at the center of this network as a Layer 1 platform offering smart contracts, identity, staking, governance, and interoperability. Developers can deploy Ethereum-compatible contracts using familiar tools like MetaMask and Hardhat without rewriting existing Solidity code.

The Polkadot ecosystem uses a dual-VM setup with REVM (RISC-V) for performance-critical tasks and native PVM for computationally heavier workloads. DOT holders bond tokens to validators to help secure the relay chain and earn rewards through staking, which is how the network stays decentralized and secure.