Polkadot is a protocol that enables independent blockchains to exchange information. The defined purposes behind the project are:
- To enable applications and smart contracts on one blockchain to transact with data and assets on other chains;
- To run several parachains, each processing multiple transactions in parallel, allowing networks to enjoy infinite scalability;
- To benefit from shared security, where individual chains leverage collective security without having to start from scratch to gain traction and trust.