Move Programming Language

• Move Introduction @ Diem Developers
• The Official Move: A Language With Programmable Resources White Paper - whitepapers/raw/master/libra-move.pdf)
• Move Contract Playground

• The Official Diem (formerly Libra) Blockchain / Protocol White Paper - whitepapers/raw/master/libra-blockchain.pdf)

Move Programming Language

• The Official Libra Byzantine Fault Tolerance (BFT): State Machine Replication in the Blockchain White Paper - whitepapers/raw/master/libra-consensus.pdf)
• What is HotStuff and why is it a big deal
• What is the difference between Practical Byzantine Fault Tolerance (PBFT), Tendermint, Scalable Byzantine Fault Tolerance (SBFT) and HotStuff?
• Facebook's proposed currency is technically sound, but should you trust it?
• On LibraBFT's use of broadcasts
• HotStuff: Three-chain Rules! - Most protocols contain quadratic voting steps. When Byzantine consensus protocols were originally conceived, a typical target system size was n=4 or n=7, tolerating one or two faults. But scaling Byzantine Fault Tolerance (BFT) consensus to n=2000 means that even on a good day, when communication is timely and a handful of failures occurs, quadratic steps require 4,000,000 messages. A cascade of failures might bring the communication complexity to whopping 8,000,000,000 (!) transmissions for a single consensus decision...
• HotStuff: Byzantine Fault Tolerance (BFT) Consensus with Linearity and Responsiveness Whitepaper - whitepapers/raw/master/hotstuff.pdf) by Maofan Yin, Dahlia Malkhi, Michael K. Reiter, Guy Golan Gueta, Ittai Abraham - a leader-based Byzantine fault-tolerant replication protocol for the partially synchronous model. Once network communication becomes synchronous, HotStuff enables a correct leader to drive the protocol to consensus at the pace of actual (vs. maximum) network delay - a property called responsiveness - and with communication complexity that is linear in the number of replicas. To our knowledge, HotStuff is the first partially synchronous BFT replication protocol exhibiting these combined properties. Its simplicity enables it to be further pipelined and simplified into a practical, concise protocol for building large-scale replication services.

Blockchain Explorer

• Libra Testnet Explorer - incl. faucet to mint your own free (test) libra tokens / money
• Libra Block (Testnet Explorer) - End)](https://github.com/libra-china-org/librablock-frontend), [(Source Back-End)](https://github.com/libra-china-org/librabock-backend)
• Libra Vista (Testnet Explorer)
• Libranaut (Testnet Explorer)
• Libratics (Testnet Explorer)
• iLibraExplorer
• Libra Vista (Testnet Explorer)

Wallets

• **Welcome to Novi (formerly Calibra)**
• `novi.com` - Facebook's official wallet for Libra from Facebook Financial (F2) that also
• Novis's Blockchain and Cryptoeconomics Team Page @ Facebook Research
• The First Libra Wallet Proof-of-Concept (POC) - Building your own Wallet and APIs
• Live Demo - wallet-poc)
• Libra Paper Wallet - paper-wallet)) by Libra Startup; generate a new Libra cryptocurrency wallet address, its QR code, and the recovery seed - 24 words
• `novi.com` - Facebook's official wallet for Libra from Facebook Financial (F2) that also

Libraries

• Libra gRPC - a lightweight JavaScript library for Libra
• Libra API - a REST API for Libra blockchain
• Libraj - a java library client that can be used to interact with libra nodes
• Libra Core - a javascript library client that can be used to interact with libra nodes. Coded in typescript
• Libra Web - a javascript client for Libra blockchain. The library allows javascript program to interact with Libra nodes with protobuf message through grpc web. It works in both browser and node.js environments
• PyLibra - a python client for Libra blockchain. The library allows Python program to interact with Libra nodes with protobuf message through grpc
• Libra gRPC - a gRPC client for Libra in Python
• Libra Client - a client library that lets you interact with Libra nodes with protobuf message through gRPC
• Libra Go Client - a go client for interacting with Libra blockchain
• Libra Go SDK - a go dev kit for Libra
• Libra Example - example Libra Go client
• go-libra - a Libra go client library with crypto verifications
• Jlibra - a Java library for interacting with the Libra blockchain.
• TaoHe - Collection of nestable smart contract resources for Diem and other MoveVM blockchains.

Courses / Code Schools

• **CryptoZombies (Libra/Move Edition)**
• **Libra Basics Lesson 1 Live - Becoming a Shop Owner** - - In this first lesson, you'll learn how to interact with the Libra testnet blockchain using the command line interface (CLI). This perfectly simulates how you can interact with the REAL libra testnet today. Later, we'll show you how to install it yourself.
• **MoveCastle** - learn Libra blockchain contract programming
• **MoveCastle** - learn Libra blockchain contract programming

More

• #diem
• Help & Discussion in Testnet Channel / Category
• Connecting to Libra TestNet on Windows with the Windows Subsystem for Linux (WSL)

Open Libra

• Libra Core Roadmap

Open Libra

• Diem (cryptocurrency) @ Wikipedia
• Diem (cryptocurrency) Talk / Discussion @ Wikipedia

Open Libra

• Meet Morgan Beller, the 26-year-old woman behind Facebook's plan to make its own currency

Open Libra

• Five months and growing strong: the Libra project
• Why building a new protocol for money is the only way to truly change the game for people
• Libra Testimony @ US Senate, Committee on Banking, PDF Download (~100k, 7 Pages)
• Libra, 2 weeks in
• Libra: The Path Forward - Today we are announcing the Libra testnet, a live demonstration of an early prototype of the technology behind Libra - a simple global currency and financial infrastructure that can empower billions of people...
• Coming in 2020: Calibra - A New Digital Wallet for a New Digital Currency
• (Christian Catalini) Libra co-creator (and Calibra Head Economist) explains, defends Facebook's cryptocurrency
• First Look: Libra - An in-depth review of Facebook's long-anticipated entry into cryptocurrency
• Libra: Understanding Facebook's Digital Currency
• bipartisan bill in US Congress - they mean Libra - are securities.
• David Gerard, Nov 22, 2019 - News: Libra and stablecoins and [the US Treasury's Financial Crimes Enforcement Network
• Uncle Sam weighs Libra - Facebook's David Marcus spoke before [the US] Congress on the company's upcoming pseudo-bank, Libra. The oldies on Capitol Hill [in Washington] could barely conceal their contempt...
• [US
• Facebook's Libra currency spawns a wave of fakes, including on Facebook itself - Roughly a dozen fake accounts, pages and groups scattered across Facebook and its photo-sharing app Instagram present themselves as official hubs for the digital currency, in some cases offering to sell Libra at a discount if viewers visit potentially fraudulent, third-party websites...
• Facebook Libra is Architecturally Unsound - Libra's byzantine tolerance on a permissioned network is an incoherent design; Libra has no transaction privacy; Libra HotStuff BFT is not capable of achieving the throughput necessary for a payment rail; Libra's Move language is not sound; Libra's cryptography engineering is unsound; Libra has no capacity for consumer protection mechanisms. Answer: [Factual inaccuracies of "Facebook Libra is Architecturally Unsound"](https://tonyarcieri.com/factual-inaccuracies-of-facebook-libra-is-architecturally-unsound) by Tony Arcieri
• Thoughts on Facebook's Libra Coin - Permissioned blockchains: where it all began...
• Why Facebook's Libra currency gets the thumbs down - Facebook has earned a level of distrust that took the banking sector much longer to achieve. Time and again, Facebook's leaders, faced with a choice between money and honouring their promises,
• The Real Threat From Facebook's Libra Coin - Facebook's Libra cryptocurrency is generating an immense amount of hype.
• Facebook's New Currency Has Big Claims and Bad Ideas - Libra is an ideological project, not a practical one - Libra has certainly demonstrated one of the main characteristics of blockchain projects - grandiose claims and egregious nonsense...
• Facebook's Libra Must Be Stopped - Facebook has now unveiled a cryptocurrency and payment system that could take down the entire global economy. Governments must intervene before a company that "moves fast and breaks things" ends up breaking everything...
• Facebook's Cryptocurrency: Stop It Before It Starts - The [Libra] coin is really a Facebook project. It is not live yet, giving governments the opportunity to kill this project before it gets off the ground and gives rise to cybercriminals who couldn't capitalize on existing cryptocurrencies. In particular, the [Internal Revenue Service] IRS and [the U.S. Treasury's Financial Crimes and Enforcement Network] FinCEN should take action now...
• FacebookCoin is being announced on Tuesday - and we still don't know why it's a crypto - FacebookCoin is being announced on Tuesday! It's called Libra, and Facebook are apparently stressing very hard that everyone should call it Libra, and not Facebook-anything. And definitely not ZuckerBucks...
• Libra, 2 weeks in
• Facebook's Libra Must Be Stopped - Facebook has now unveiled a cryptocurrency and payment system that could take down the entire global economy. Governments must intervene before a company that "moves fast and breaks things" ends up breaking everything...
• Coming in 2020: Calibra - A New Digital Wallet for a New Digital Currency
• Libra: Understanding Facebook's Digital Currency

Open Libra

• #awesome-libra
• Awesome Libra Blockchain
• Awesome Libra
• Awesome Libra

Open Libra