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ethereum

A collection of 7 posts

Plasma Cash Simple Spec

Plasma Cash Simple Spec

This is first pass at a full specification for a Plasma Cash chain. Super special thanks to Vitalik for making this post possible. And a big thanks to Joseph Poon ❤️ -- plus love to David Knott Overview Plasma Cash is a Plasma construction based around the use of unique identifiers

Learning Solidity Part 2: Commit-Reveal Voting

Learning Solidity Part 2: Commit-Reveal Voting

What is "commit-reveal"? To understand how the commit-reveal commitment scheme [https://en.wikipedia.org/wiki/Commitment_scheme] works, it is useful to break it down into it's two component parts: 1. Commit: You assert your choice to your peers. 2. Reveal: You reveal your choice, and everyone can verify that

Learning Solidity Part 1: Contract Dev with MetaMask

Learning Solidity Part 1: Contract Dev with MetaMask

-------------------------------------------------------------------------------- What you will need ✅ 1. The **Chrome** web browser - [Download here](https://www.google.com/chrome/browser/desktop/) 2. The **Metamask** Chrome extension - [Download here](https://chrome.google.com/webstore/detail/metamask/nkbihfbeogaeaoehlefnkodbefgpgknn) Metamask allows you to sign Ethereum transactions *without* running a full Geth node.Contract

Solidity's biggest bug: Javascript

Solidity's biggest bug: Javascript

Reliance on Javascript is stunting the growth of the Solidity development ecosystem. It’s why new developers get stuck. It’s why we struggle integrating Solidity into development environments. And it’s why much of our documentation is out of date. We are stuck in our Javascript mindstate because we

An Introduction to Ethereum Testnets

An Introduction to Ethereum Testnets

Understanding how to use testnets is essential for developing smart contracts on Ethereum [https://karl.tech/ethereum-in-101-words/]. Here is a basic introduction to what testnets are and how to use them. What is a testnet? Testnets simulate the Ethereum network and EVM [http://ethereum.stackexchange.com/questions/142/what-was-the-reason-to-invent-the-evm] . They

Simple Decentralized App Architecture

Simple Decentralized App Architecture

If you don't know what a Decentralized Application (Dapp) is, check out my previous post Why Build Decentralized Applications [https://karl.tech/why-build-dapps] Two Key Technologies: 1. IPFS: A distributed datastore modeled after BitTorrent and Git. Soon it will have an incentivisation layer in which you pay strangers to store

Ethereum in 101 Words

Ethereum in 101 Words

Ethereum's roots stem from Bitcoin. Bitcoin made one major innovation: decentralized trust. Conventionally we trust governments or companies. Bitcoin moved trust to the network. With that, the first decentralized currency was born. But a currency is limited. Now enter Ethereum. Ethereum is a single computer we can trust. Using Ethereum