Blockchain Developer
Joined April 2020 332 Followers
11 Jun 2020 6 minute read comments alexroan
True randomness has been near impossible on Ethereum. This is because transactions need to be verified by multiple nodes on the network to be confirmed. If a smart contract function were truly random, each node that verified a transaction using that...
11 Jun 2020 8 minute read comments alexroan
I’m fascinated by Cryptocurrency. If you are too, this fascination was likely born from excitement. When the market skyrocketed in 2017, I believed that becoming wealthy beyond my wildest dreams was genuinely possible. For the first time in generatio...
11 Jun 2020 3 minute read comments alexroan
Prerequisite: Ths article assumes an understanding of Solidity and Ethereum smart contracts. Controlling access to smart contracts is vital to ensuring security. Common patterns, like OpenZeppelin’s Ownable and AccessControl contracts, enable develop...
11 Jun 2020 5 minute read comments alexroan
What happens when the foundations of our financial system are disrupted? “The Times 03/Jan/2009 Chancellor on brink of second bailout for banks” That’s the message digitally etched into the first block in a chain that would eventually bring about t...
24 May 2020 4 minute read comments alexroan
Cryptocurrency is a young, intimidating industry for newcomers. There are so many buzzwords, acronyms and coins that it seems impossible to make any sense of it. Here, we’ll go through the differences between some of the top Cryptocurrencies, why the...
24 May 2020 5 minute read comments alexroan
Buy Crypto Without The Fuss Using Web3 And Ramp Network. Buying Crypto is painful If you’re not uploading your passport or driving license for tedious KYC checks, or waiting for your bank account to be approved, you’re waiting days to withdraw your c...
20 May 2020 1 minute read comments alexroan
Buying crypto has never been so easy Buying crypto has always been a bit of a pain. For most people (like me), it involves going through a major centralised third party like Coinbase. To be quite honest, if newbies to the crypto space ask me how to b...
20 May 2020 7 minute read comments alexroan
How Chainlink Solved Ethereum’s “Random Problem” Random numbers and Blockchains have always been in disagreement. Until now, a verifiably random function has never existed on the Blockchain. The problem stems from the fact that when transactions are...
20 May 2020 1 minute read comments alexroan
Prerequisite: A beginner-level understanding of Ethereum and web3.js. User experience is one of the biggest roadblocks to onboarding users onto your decentralised application (DApp). Modern web browsers don’t support web3 by default, so most users ha...
15 May 2020 1 minute read comments alexroan
Web3 bridges the gap between the traditional internet and the Ethereum blockchain. It enables users to interact with your DApp through a browser. When using JavaScript for your front end, knowing the ins and outs of Web3JS is essential. Here is a lis...
