Substrate

Polkadot is a layer-0 protocol and multichain network designed for the future of Web3. Substrate is the blockchain SDK used to build the parachains that form the Polkadot network. Developed by Parity Technologies, Substrate allows the creation of specialized blockchains with high performance, flexibility, and security.

What is Substrate?

Substrate powers Polkadot and its connected blockchains, enabling the creation of custom chains. Substrate-based chains are easy to integrate into Polkadot or Kusama to become a parachain or parathread, with Polkadot providing security and cross-chain communication.

The name "Substrate" reflects its purpose: serving as the foundational layer for blockchain development.

Smart Contracts on Polkadot

Substrate supports smart contracts via its contracts pallet, using the ink! language (Rust-based). These contracts are compiled into WebAssembly (Wasm) for efficiency and portability.

What is a Substrate Pallet?

Substrate’s FRAME (Framework for Runtime Aggregation of Modularized Entities) runtime system allows developers to create blockchain-specific logic using pre-built modules called pallets. These pallets act as building blocks for features like governance, treasury, or assets. Developers can also create custom pallets, making Substrate both flexible and robust.

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