In the previous post, I explained about Bitcoin forks and 51% attacks. I introduced the throughput-security trade off that Bitcoin has, where increasing the block size can increase the number of forks, and reduce the reorg attack threshold to be less than 50% of the hashing power. In this post I’ll explain how we can circumvent the problem and increase the throughput without harming security.

Introducing BlockDAGs

The problem with forks is that their work could be used to secure the main chain, but instead their work is wasted and ignored. In order to solve this problem we need to harness their…


Satoshi Nakamoto invented Bitcoin in 2008, and created for the first time a trustless decentralized money. Despite its many innovations, blockchain has some issues. In this blog post I’ll investigate some of them. I’ll explain how Bitcoin forks work and how they affect its security. If you’re already familiar with the subject, you can check out the next post that explains how this problem can be solved with the BlockDAG paradigm.

Note: This blog post assumes you are familiar with the basics of how Bitcoin and proof-of-work works. …

Ori Newman

I'm a Bitcoin enthusiast since 2013 and I'm recently working on Kaspa

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store