Golden Door’s Blockchain and Crypto Primer


Blockchain and Crypto Primer

At its core blockchain technology has solved the double-entry problem in accounting. If you think about money, it’s a giant database of informational units. It tells everybody where specific units reside (debits or credits) and how to account for them.

The current financial system has been living in the Web 2.0 era of the internet. Think MySpace instead of Meta/Facebook. At the moment, it seems all financial systems are equal but that’s only on the application layer. On the backend, most of these financial systems still take days to settle transactions. Whether it’s a stock, a wire or payment. Reconciliations are time-consuming and costly. However, they don’t have to be.

What’s the difference between cryptocurrencies and blockchain?

Crypto uses cryptography for security. It tends to be decentralized but not in all cases. Bitcoin was the first and most well-known cryptocurrency, which was created in 2009 by Satoshi Nakamoto.

What are the benefits of crypto and blockchain?

In some cases, it has faster and cheaper transactions compared to traditional financial systems. For me, increased security and transparency are a big part of it. The current financial system has a closed source system

Blockchains are the underlying technology behind cryptocurrencies. They are distributed ledgers that record transactions chronologically and transparently. Once recorded, data on the blockchain is very difficult to alter, making it highly secure. Decentralization is a key component of these new technologies.

Of course, it’s worth noting crypto investments are risky and very volatile. Investors need to be aware of how speculative these investments are. Blockchain technologies are still relatively new and evolving. Yes, that includes Bitcoin. Plus regulatory uncertainty and legal definitions are still unclear in many areas.

We recommend doing a lot of due diligence before looking into any speculative investments. If you want to learn more about Blockchains, watch our 30 introductory videos to get started.

An introduction to blockchain - course summary

video preview

Most Popular Crypto & Blockchain resources

If you need resources to research crypto or stay on top of the news, check out these sites as well:

Welcome to Golden Door

Learn about the latest technology investments here.

Read more from Welcome to Golden Door
Nasdaq-100 Daily Newsletter - Apr 24

Nasdaq-100 Daily Newsletter Thursday, April 24, 2025 Nasdaq-100 Daily Market Update The tech-heavy index is currently trading at 18,693.26, representing a 2.28% change. Market Snapshot Index Price Change NASDAQ 100 18,693.26 +2.28% S&P 500 5,375.86 +1.67% Dow Jones Industrial Average 39,606.57 +1.07% NASDAQ Composite 16,708.05 +2.50% CBOE Volatility Index 28.32 -0.46% Top Gainers Symbol Name Price Change Volume TSLA Tesla, Inc. 250.74 +5.37% 147.94M AVGO Broadcom Inc. 176.91 +4.32% 24.32M...

My Experiences with Grok & Gemini

The A.I. Wars Have Begun For the past two years, I’ve spent a lot of time testing the latest A.I. tools. Personally I have always tested the latest hardware and software, but A.I. is the first time I get into the details to improve my everyday life. Using A.I. tools like ChatGPT for the first time feel like turning on my original PC or accessing the internet through Netscape Navigator. There is going back once you see the light. At first, OpenAI had a significant lead when ChatGPT was...

My Experience Working on Wall Street in 2007

My Experience Working on Wall Street from 2007 After I graduated high school, I started interning on Wall Street during the Summer of 2007.Every time I look back at the Great Recession to study market trends, I always find myself back at this starting point.The Fall of 2007 was probably peak stock market euphoria. I didn't know much about investing yet and had just opened a Scottrade account. Most of my investment knowledge came from studying finance & economics. I had zero real-world...