Polkadot is a next-generation blockchain protocol that connects multiple specialized blockchains (parachains) into a single interoperable network.
Polkadot achieves scalability through its multi-chain architecture, allowing parallel processing of transactions across multiple chains called parachains.
DOT is the native token used for delegating to validators, governance, transaction fees, and bonding parachains to the Polkadot network.
Polkadot ensures security through its Nominated Proof-of-Stake (NPoS) consensus mechanism, where validators are selected by nominators who stake the native DOT token.
Yes, Polkadot can connect to Ethereum and Bitcoin using specialized blockchains called bridges, facilitating cross-chain communication and asset transfers.