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Links An Introduction to Polkadot Gossamer - Go implementation of the Polkadot Host.Polkadot Node Implementation @polkadot/apps - Portal into the Polkadot and Substrate networks. Provides a view and interaction layer from a browser.Gavin Wood: Polkadot - Explaining the Launch Process (2020) What is Polkadot? (2020) Substrate - Next-generation framework for blockchain innovation. (Docs ) (Docs Code )substrate-lite - Lightweight Substrate and Polkadot client.Moonbeam - Polkadot Smart Contract Platform. (Code )Substrate Archive - Blockchain Indexing Engine. Run alongside a substrate-backed chain to index all Blocks, State, and Extrinsic data into PostgreSQL.De[code] Sub[strate] - Decode Substrate with Backwards-Compatible Metadata.Parity - Blockchain Infrastructure for the Decentralised Web. (GitHub )Parity Zcash client Parity Bitcoin client Polkadot Wiki - Central source of truth for Polkadot.Polkadot Cross-Consensus Message (XCM) Format Open Runtime Module Library (ORML) - Community maintained collection of Substrate runtime modules.polkadot-launch - Simple CLI tool to launch a local Polkadot test network.Acala Network - Cross-chain DeFi hub and stablecoin based on Substrate for Polkadot and Kusama. (Web )Polkassembly - Place to discuss and vote on Kusama and Polkadot governance. (Code )Nuxt.js + Vue.js + TypeScript + PolkadotJS Polkadot Protocol Specification and Conformance Tests Substrate Contracts Workshop - Self-guided tutorial which will teach you how to build Wasm smart contracts on Parity Substrate using Parity ink. (Web )Bandot - Polkadot stable coin credit system. (Code )substrate-api-client - Library for connecting to substrate API over WebSockets.polkadot/api - Promise and RxJS APIs around Polkadot and any Substrate-based chain RPC calls.Parity Signer - Air-gapped crypto wallet. (Web )Cumulus - Set of tools for writing Substrate-based Polkadot parachains.8 Features That Make Polkadot Worthy of Attention (2021) Compound Chain - Interest-bearing stablecoin bridge between all DeFi chains. Built on Substrate. (Web )Polkadex - Orderbook-based Decentralized Exchange using the Substrate Blockchain Framework. (Web )Substrate Developer Hub - Substrate Documentation for Blockchain Developers.Subport - Parity Substrate(-based) chains usage and development support.Parity Bridges Common - Collection of components for building bridges.HydraDX node - Cross-chain liquidity protocol built on Substrate. (Web )Substrate Node Template - New FRAME-based Substrate node, ready for hacking.What are the most promising projects building on Polkadot? (2021) Polkadot Telemetry Polkadot Ethereum Bridge Polkadot Validator Setup subxt - Submit extrinsics (transactions) to a substrate node via RPC.Banksy Network - Cross-chain NFT based on Substrate for Polkadot and Kusama.Statemint - Blockchain to support generic assets in the Polkadot and Kusama networks.BEEFY (Bridge Efficiency Enabling Finality Yielder) - Secondary protocol running along GRANDPA Finality to support efficient bridging with non-Substrate blockchains.Polkadot Decoded 2021: Auctions, and Crowdloans, and Slots (2021) Why did you invest in Polkadot? (2021) Polkadot: A Bet Against Maximalism (w/Gavin Wood and Sebastian Moonjava) (2021) Substrate Collectables Workshop - Learn to build blockchains with Parity Substrate. (Docs )Staking for Polkadot Parachains (2021) Substrate how-to guides (Code )Kagome - C++17 implementation of Polkadot Host.Gekko - Utilities to parse substrate metadata, generate the corresponding Rust interfaces, create transactions and the ability to encode/decode those transaction.polkadot/common - Utilities and base libraries for use across polkadot-js.Canvas - Node implementation for Canvas ‒ a Substrate parachain for smart contracts.Examples of interacting with a Polkadot node in Rust Substrate playground - Start hacking your substrate runtime in a web based VSCode like IDE. (Web )Substrate Connect - Run Wasm Light Clients of any Substrate based chain directly in your browser.Substrate debug-kit - Collection of debug tools and libraries around substrate chains.Substrate Validator Set Pallet Gear - Computational Component of Polkadot Network.Play Substrate - Runtime modules for beginners to play.substrate-stencil - Template for kick starting a Substrate based PoS chain.protocol-substrate - Webb protocol implementation in Substrate.filecoindot - Filecoin to substrate bridge.Talisman - Polkadot, Kusama & Parachain dashboard for the community. (Web Code )Kusama - Polkadot's Canary Network.Polka Domain - Decentralized, privacy preserving blockchain naming service and exchange built on Polkadot for everyone.Subspace Network - Open, scalable platform for both storage and compute that is fully interoperable with any layer one. (Code )Astar Network - Polkadot DApp Hub. (Code )NFT Explorer for Kusama & Polkadot & Substrate ecosystem Polkadot Rewards - CLI App to crawl staking rewards for Kusama, Polkadot, and Moonriver from Subscan.Polkadot.js Extension - Simple browser extension for managing Polkadot and Substrate network accounts in a browser.Polkadot Portfolio - CLI tool to find all your bags of tokens im the highly complicated world of Polkadot Ecosystem.Exercises to learn substrate Sub-script - Scripting interface for substrate nodes.Polkadot Basic Notifications - Basic, account-based, multi-transport notification service for the Polkadot ecosystem.Tidechain - Backbone of the TIDE ecosystem. Built on Substrate.Diener - Tool for easily changing Substrate or Polkadot dependency versions.Substrate Front End Template - Polkadot.js API + React based template for building Substrate Front Ends.CESS Cumulus Encrypted Storage System - Distributed cloud data network with user friendly ledgers, novel consensus mechanism, multiple data authenticity proof schemes, and reliable network infrastructure. (Code )Awesome Substrate Zombienet - CLI tool to easily spawn ephemeral Polkadot/Substrate networks and perform tests against them.Capi - TypeScript toolkit for crafting interactions with Substrate-based chains.Subshell - Substrate API playground in a Deno.