Zoran Skoda substrate

The substrate is an open software for blockchain mainly created by the company Parity inder the leadership of Gavin Wood (one of the founders of Ethereum and the leader of Web3.0 initiative). It is modular, extensive and in large part written in Rust language. The Polkadot interchain project (in progress) is based on Substrate.

The state-transition function (therefore the runtime architecture) is in Webassembly.

The web page is

• substrate

and the github repository is

• github.com/paritytech/substrate

The documentation

• docs.substrate.dev/v1.0.0/docs
• substrate dev hub
• front-end tutorial
• stackoverflow substrate

The historical presentation of the project with the installation demonstration (Nov 2018) is

• G. Wood, Substrate: A Rustic Vision for Polkadot at Web3 Summit 2018, youtube

See also the 3-hour workshop Dotcon-0

• Substrate workshop with Gavin Wood and Sergei Shulepov youtube

See also the videos by other substrate developers

• Shawn Tabrizi, Substrate an open-source framework for building blockchains, youtube
• Benjamin Kampmann, Shawn Tabrizi, A new dawn: building DApps with Substrate, youtube
• B. Hampann, Polkadot & Substrate (05.11.18) CryptoMonday Köln, yt
• Rust Cologne conf. WASM in the wild yt

An overview of substrate components at

• enterprise times

Online tutorial

• substrate collectables workshop (Learn to build blockchains with Parity Substrate)

• riot matrix channel dedicated to substrate

• Substrate blockchains and runtime modules: an introduction medium

Some graphic schemas on the structure of substrate code can be found here

• brenzi at github

Nodes see chain runtime through entry points usually via

• API traits in Rust, see docs/runtime-and-api

Substrate UI uses the polkadot-js/API

• polkadot.js.org/api

Links related to substrate’s consensus algorithms

• Proof of existence blockchain with Substrate, blog
• Casper consensus on substrate news

Smart contracts on Substrate

Smart contracts on Substrate are currently done using the module ink.

• github/paritytech/ink
• substrate-smart-contracts-workshop
• crate srml_contract
• Rust smart contracts: demos & challenges hackernoon
• Problems using u8 in Substrate and ink stackO
• Substrate Runtime Modules and Substrate Smart Contracts stackO
• Edgeware: A Wasm smart contract platform built on Substrate, webpage, whitepaper pdf, presentation on youtube
• blog Why write smart contracts in rust, Towards a brighter future for smart contracts
• S Sedov, Why Substrate doesn’t use Solidity and why do we need it at all Medium blog

About Rust and Webassembly in general

• see also Rust in this wiki
• rust-lang.org, the official rust book, reference
• what is rustdoc
• Jim Blandy, Jason Orendorff, Programming Rust: fast, safe systems development, O’Reilly Media 2017
• Rust crashcourse Rustlang (2hr) yt
• yandex Rust course (in Russian, А. А. Кладов) 2019-spring
• double linked list in safe Rust github, std::collections::LinkedList, but use VectDeque and see Learn Rust With Entirely Too Many Linked Lists
• WebAssembly wikipedia, spec, webassembly.org, msdn docs, rust-to-wasm, github
• WebAssembly-Links in Parity Tech Documentation
• AssemblyScript (maps a subset of javascript code to wasm) github, news
• Rust & WebAssembly with Nick Fitzgerald yt

Polkadot project

• PolkaDot.network
• Cumulus - an extension to Substrate that makes it easy to make any Substrate built runtime into a Polkadot compatible parachain.
• Gavin Wood, PolkaDot: vision for a heterogeneous multi-chain framework pdf
• Vitalik Buterin (for R3), Chain interoperability Sep 2016 pdf
• Polkadot & Parity Substrate, by Björn Wagner and Robert Habermeier at Polkadot SF yt
• Thibaut Sardan, Polkadot and Parity Substrate youtube

CENNZNet

This is a Substrate based 3rd generation blockchain project (written in Rust), using proof of stake and implementing PL^G. Smart contracting uses ink.

• cennznetdocs
• What is CENNZNet cennznet.md
• smart contracts on CENNZNet tutorial Spin2Win Contract