If you’ve found your way to this article, you’re probably in a frustrating spot. Maybe you have a Bitcoin wallet file, but you can’t get into it because you’ve forgotten or lost the password that protects it. Perhaps you’re holding a partial secret, such as a WIF key with several …

Over time, cryptocurrency assets such as Bitcoin wallets can be forgotten or lost. They may still exist on old computers and laptops, external drives or backups, but locating them can be a daunting task. That’s where Treasure Hunter comes in. This powerful application is designed to scan storage devices and …

Pascal is a mature and dependable technology. Unfortunately, it is also aging and the pool of developers who know it well keeps shrinking. If your business runs on a Delphi or Lazarus application, I can help. I’ve spent two decades writing in Pascal. I started with Delphi 6 and worked my way through to Delphi …

Bitcoin launched in 2009 as the first decentralized cryptocurrency, and in the early and mid-2010s a lot of curious people mined a few coins or bought some for pocket change before forgetting about them. Back then, a single Bitcoin was cheap, so it was easy to treat the whole thing as a novelty and move on. Today, …

In a recent project, I was working on a licensing system that had to work entirely offline. For this, I decided to rely on JSON Web Tokens, or JWTs. Lazarus has support for them, but it took me a while to get it working. First of all, make sure you are running a recent version of FreePascal. The JWT implementation was …