Polkadot

Polkadot is a multi-chain blockchain protocol that enables interoperability between different blockchains (parachains) within a unified ecosystem. It is built using Substrate and operates on the Nominated Proof-of-Stake (NPoS) consensus mechanism, allowing developers to create specialized blockchains with secure data exchange capabilities. At the core of the network is the Relay Chain, which coordinates parachains and ensures the security of the entire system. With its architecture, Polkadot offers scalability, seamless upgrades without hard forks, and decentralized governance through an on-chain voting system.