Working Through The Chapter In this chapter we build a wallet. The first version must: Create new addresses Manage private keys Transfer payment details Make a payment Keep track of funds Back up private keys. To buy something we go through a few steps: Cafe creates a new address, and requests 10 Cookie Tokens. This […]
Introduction Chapter 2 of Grokking Bitcoin lulls you to sleep, compared to chapter 3 of Grokking Bitcoin. I felt like this chapter jumped in difficulty significantly compared to the previous chapters. The table of contents for this chapter include: Cookie-eating habits disclosed Replacing names with public keys Shortening the public key Avoiding expensive typing errors […]
Introduction Chapter 2 of Grokking Bitcoin gets into cryptography, and is titled, “Cryptographic hash functions and digital signatures”. Its table of contents for this chapter covers: The cookie token spreadsheet (concrete example of how Bitcoin works) Cryptographic hashes Exercises Digital Signatures More Exercises This chapter goes more in-depth about Bitcoin and starts to get nitty-gritty. […]
Introduction I bought Grokking Bitcoin because I saw it was recommended by someone (Luke Dashjr?) on twitter. I thought it would be a good add to my library, especially since I don’t know a lot about Bitcoin yet (comparatively). It’s my goal to become a Bitcoin developer, and I’m hungry to learn more. The first […]
I hate when there’s something only accessible on YouTube and not podcast format. I have an RSS feed that I’m going to load on all of the interesting videos I can find around Bitcoin and convert them to MP3’s. You can find the RSS feed here.
Problem with ECDSA Coin The problem with our previous coin is that it could be doublespent. Alice could have sent that coin to anyone before sending it to us. There is no source of truth. We can use centralization to fix this. Every time a coin is sent, we use a “bank” to make sure […]
Today at lunch, I was talking to my coworkers. I brought up the point, of how, at a certain age, there are no expectations for you at all. You can’t rebel against zero expectations. You can’t go along with expectations, when there are none. Then, what is the best course of action? Someone once said, […]