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Foundations · easy

1. Polkadot 2.0 & Relay Chain Architecture

Shared security and the multi-core decentralized computer.

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Polkadot is a shared-security heterogeneous multi-chain network. In Polkadot 2.0, the network functions as a decentralized multi-core computer where execution cores provide verifiable computation to rollups and parachains.

rust
// Parachains validate state transitions via WebAssembly runtime validation functions (Wasm PVF)

The Relay Chain coordinates shared security, consensus (BABE/GRANDPA), and cross-consensus messaging (XCM), offloading execution to parallel cores.

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Check your understanding

  1. 1. What is Polkadot's primary role in the Polkadot 2.0 architecture?

  2. 2. What consensus mechanism provides provable finality in Polkadot?

  3. 3. What is a PVF in Polkadot parachain consensus?

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