How Proof of Work is used to establish consensus in blockchain
In the previous article, we saw how we use a puzzle to achieve consensus. In this article, we will see how we use Proof of Work as the puzzle and how it works. As we…
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Blockchain consensus using a puzzle
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In the previous article, we saw how we order transactions in a blockchain by hashing transactions. However, this alone doesn’t help achieve consensus as we haven’t found a way to solve the confusion we talked…
Establishing an order of transactions in blockchain
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In the previous article, we took a look at how we verify transactions in detail. In this article, we will look at why the order of transactions matters and how we can establish an order.…
Verifying blockchain transactions
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We discussed proving ownership of bitcoins in the previous article. Let’s discuss how verifying transactions works at length in this article. Remember that earlier we learned that the pubkey script has a few scripts in…
Proving ownership of coins in blockchain
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This article discusses blockchain account addresses, how they are used to prove ownership of bitcoins and how blockchain transactions work.…
Understanding blockchain transactions
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In the previous article, we discussed hashing, asymmetric encryption, and digital signatures. In this article, we will dwell on how blockchain transactions work. An easier way to learn how blockchain transactions work is by following…
Hashing, asymmetric encryption, and digital signatures
In this article we will learn about hashing, asymmetric encryption, and how we use them to produce digital signatures.…
Fixing exhaustive-deps warning in some common use cases
Let’s look at how we can adapt the right mental model of useEffect to fix the exhaustive-deps warning.…
You might be using useEffect wrong the whole time
I had a tryst with the eslint exhaustive-deps rule recently. It made me go down the rabbit hole and realize that I have been using the useEffect hook wrong. In this article, I will be…
useTransition and useDeferredValue in React 18
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useTransition and useDeferredValue are two new hooks React introduced with React 18 earlier this year. These two hooks make use of React’s concurrent rendering to allow developers to provide a better user experience in their…
Magic link authentication using Asgardeo
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Passwords are becoming obsolete, and the tech world is exploring various different technologies to allow users to log in without passwords. In this article, we discussed the perils of passwords and how FIDO2 can help us go…
Challenges of a decentralized transaction system
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In the previous article, we looked at the motivation behind blockchain. In this article, let’s look at the challenges of a decentralized digital financial transaction system. As we saw in the previous article, in a…
The motivation behind blockchain
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The online literature on blockchain is torn between too simplistic rundowns for non-techies and advanced hieroglyphic riddles targeted at those who want to learn blockchain in depth. When I started learning blockchain, unfortunately, hardly did…
Call a child component’s method from its parent in React
Invoking a parent component’s method from a child component is pretty straightforward in React. We can do it by passing the method as a prop to the child component. But what if we want to…
Passwordless login using Asgardeo
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Passwords are fast becoming a thing of the past and for the right reasons. For better user experience and security, services should allow their users to log in without passwords. With Asgardeo, this should be…
How I created a bot that tweets the correct Wordle word daily
Wordle is intriguing, I know. But what was more intriguing to me was how this web app worked. So, I decided to peek through the code, and eventually, I decided to build a Twitter bot…