Jan 22, 2024 · Updated Oct 30, 2025 · Blockchain Technology What Are Polkadot Parachains? Scalability, Shared Security, and XCM Polkadot parachains scale through parallel specialized chains with shared security, XCM interoperability, forkless upgrades, and slot leases.
Jan 7, 2024 · Updated Oct 25, 2025 · Blockchain Technology Polkadot’s Architecture: A Guide to Its Multi-Chain Framework How Polkadot’s relay chain, parachains, and shared security model build a scalable, interoperable foundation for Web3 — powered by Substrate and DOT governance.