Hey, guys! We’re so excited to share this tutorial with you. Since the past several weeks, we have published a series of blogs related to smart contract development, like Remix, Truffle and many testing tools. This time, as usual, we decide to write a beginner’s tutorial about using Geth, the…

In our previous blogs, we’ve explored two popular smart contract analysis tools, Mythril and Oyente. They deal with high level bug hunting for smart contracts, and output singular report to expose logic vulnerabilities, for instance code re-entry, uint wrapping, and etc. …

Hi everyone, it’s us again! Today we are going to show you how to publish your ICO token to the real blockchain network. Yes, this time we do it for real😉. …

For entrepreneurs, taking a startup to IPO (initial public offering) is one good way to achieve financial freedom . However, going through the IPO process is a tedious thing.

Once smart contracts are deployed to the public network, they had better stay immutable. Any update, such as bug fixes, needs to be adopted by all nodes. Also, the older version of smart contracts needs to be rendered as invalid. This is known as a “hard fork”. It requires all…

This article was published on Forbes.com by HaloBlock’s founder and CEO, Song Li. The dramatic fluctuation of cryptocurrency prices has reshaped the landscape of cybersecurity. Hardware and software engineers create programs and machines to compute cryptocurrencies, even as hackers try to harvest them as well. …

In our previous blogs, we have learned how to create a simple valid smart contract based on Ethereum’s browser-based IDE, how to deploy a “Hello World” script in Solidity with Truffle and Ganache CLI tools, and how to review your smart contract codes with an auto-auditing tool, Mythril. With…

In PwC’s latest report of ICO (Initial Coin Offerings), there are 537 successful ICOs with a volume of $13.7 billion in the first 5 months of 2018, which is more than all pre-2018 ICOs combined. Almost all of ICOs are based on smart contracts of Ethereum. Our last article shows…

Are you interested in the blockchain technology? Do you want to learn solidity programming? This beginner tutorial will teach you how to create a simple cryptocurrency token based on Ethereum, the next-generation smart contract and decentralized application platform, on your local virtual machine. Fundamentally, token systems and currencies are databases…