Developing with a security mindset is extremely important as the cost of failure can be high and change can be difficult. It’s recommended to use secure design patterns like rate limiters, exit strategies or circuit breakers to protect your contract against unexpected events.
This tutorial is meant for beginners ready to explore Solidity and code smart contracts. Before we begin, we'll get the basics clear. We will begin by exploring smart contracts and their effectiveness, gradually moving on to Solidity itself.
This article will guide you through the best practices and pitfalls when using a random number as input for your Ethereum smart contract.
Chris Ward looks at the effect blockchain can have on one of the more fundamental parts of the traditional computing space, data storage — covering BigchainDB and other blockchain-based databases.
Bruno Skvorc explains how to interpret the transaction types in Ethereum on Etherscan, showing how to say, with a reasonable degree of certainty, what was transferred to whom, when, and where from, as well as identify what triggered it.
Tonino Jankov shows how Ethereum is more than just a cryptocurrency or smart contracts platform, revealing a whole ecosystem being built beside the Ethereum blockchain, and flagging some very interesting changes to the Internet as we know it in the coming years.
Tonino Jankov introduces IPFS and Swarm, two of the most prominent solutions for decentralized content publication and storage.
Tonino Jankov looks at Ethereum’s upcoming Serenity update, and both Casper and other improvements of the protocol that promise to improve its scalability and efficiency.
Bruno Skvorc compares and contrasts Proof of Work (PoW), Proof of Stake (PoS), Delegated Proof of Stake (DPoS) and Proof of Authority (PoA) as well, examining how they work and their pros and cons.
David Attard compares three of the more popular Bitcoin alternatives — Ethereum, Cardano and NEO — showing how blockchain technology is evolving into a real digital platform that can be used to build scalable, distributed applications.
Bruno Skvorc explains how transaction costs on Ethereum are calculated, covering the concepts of gas, the Ethereum Virtual Machine, ether, GWei, gas limit and gas price.
Bruno Skvorc takes you through the process of generating your first Ethereum wallet and sending and receiving ether through the MyEtherWallet interface.
Mislav Javor provides a short overview of smart contract compilation, explaining ABI and how smart contracts deployed on the Ethereum blockchain can get invoked.
You've heard of encryption, but do you know what it actually is and how it works? Bruno Skvorc takes you back to the basics and explains encryption, describes the different types, and provides algorithm examples. If you've ever wanted to understand this but it seemed too complicated, you'll love this post.
Bitcoin is currently impractical to use because of slow and expensive transactions plaguing its blockchain. Bruno Skvorc explains the concept of the Lightning Network, which was introduced as a solution to this scalability issue.
Bruno Skvorc explains the concept of nodes in Bitcoin, exploring the difference between mining and validation.
Mateja Kendel presents a list of the top nine uses for blockchain that are not only viable, but also necessary and highly probable, including financial freedom, decentralization, immutability, voting and loyalty points.
Bruno Skvorc introduces Ethereum, a special blockchain with a special token called Ether, showing how it's different from bitcoin, and what makes it stand out in the world of cryptocurrency.
Bruno Skvorc explains how hardware wallets work in a technical (but hopefully human-readable) way, detailing how they do what they do and how they can be this flexible and yet this secure.
Bruno Skvorc explains what “the blockchain” actually is, how it works, why it’s popular, and why so many people claim it’ll revolutionize the world.