Understanding Bitcoin

The Genesis of a New Era

[ Level: Easy ][ Time to Read: 11 minutes]

My journey into the world of digital currency began, in 2009, when I first decided to read the nine-page whitepaper written by Satoshi Nakamoto. I was immediately captivated by the ideas it contained, spending hours of every day glued to a screen, obsessively reading, writing, and learning as much as I could about this groundbreaking technology. You can find the original paper that started it all here: Bitcoin: A Peer-to-Peer Electronic Cash System.

As I learned more & more I gushed more & more to all and sundry - friends, relatives and colleagues. One thing led to another and eventually I was persuaded to set up a fund - a cryptofund - to manage funds that others wanted to invest in this emerging tech. I also set up a small mining computer - a desktop in those days - and mined a bunch of bitcoin selling those coins for mere pennies to my 'clients.' Today those friends of mine are multi-millionaires and in some cases billionaires. Many I've taught how all this works and they've gone off to manage their own funds while some have invested in worthy causes all around the world and some have become lifelong friends with whom I've had many a wonderful time.

The future of financial exchange is anchored in cryptocurrency because it serves as the internet of money a programmable layer for value transfer that operates natively in a digital environment. Unlike traditional fiat systems that depend on human-intermediated "trusted third parties" (like banks and Safaricom), these decentralised protocols facilitate machine-to-machine payments allowing computers to transact autonomously. Advanced platforms like Ethereum function as a world computer, where "smart contracts"—which are essentially immutable programs—can independently manage and authorise the transfer of assets based on deterministic logic. This infrastructure is uniquely suited for AI code, as it permits the exchange of "nanopayments" at the millisatoshi level, enabling software agents to purchase granular resources such as data or processing power with instant settlement. By substituting institutional trust with cryptographic verification, these networks provide a neutral, automated foundation where autonomous agents can trade with perfect mathematical predictability.

Oops ... I've been doing this for a while and the preceding paragraph came gushing out of me. Pole sana (Kiswahili for 'very sorry'). I'm intending to post a series of articles here to educate you, my readership, on what this crypto currency business is all about. Don't get scared off. Read this post here and do keep coming back to learn more. Also contact me if you'd like to learn, invest, take control of your own finances and achieve that financial freedom that you've always dreamed of attaining.

Think of traditional money as a manual gate that requires a human guard to check a passport and turn a physical key. Cryptocurrency, by contrast, is an automatic sensor; the moment the correct digital signal (the private key or smart contract condition) is detected, the gate triggers itself, allowing the "data traffic" of money to flow at the speed of light without ever needing a human to stand at the post.

The Origins of Bitcoin

Bitcoin was first described in 2008 with the publication of the aforementioned whitepaper. Nakamoto combined decades of research in cryptography and distributed systems, specifically prior inventions like Hashcash and digital signatures, to create a completely decentralized electronic cash system. The network officially started in 2009, based on a reference implementation published by Nakamoto. This invention provided a novel solution to the "Byzantine Generals’ Problem," allowing multiple participants without a leader to agree on a course of action over an unreliable network.

Basic Tenets of the Protocol

At its core, Bitcoin is a decentralized, peer-to-peer trust network. It operates through at least four key innovations:

* A Decentralized P2P Network: The underlying Bitcoin protocol.

* A Public Transaction Journal: Known as the blockchain, which records every confirmed transaction.

* Consensus Rules: A set of rules for independent transaction validation and currency issuance.

* Proof-of-Work (PoW): A mechanism to reach global decentralized consensus that makes the blockchain’s history impractical to change.

Let's pick these statements apart:

Imagine you are in a classroom. Usually, a teacher or a parent is the "boss" who tells everyone when to eat, where to sit, and what games to play. In a decentralised world, there is no boss and no leader.

Instead of one person being in charge, everyone is equal. It works like this:

* Rules without Rulers: Everyone in the group agrees on a few simple rules. As long as everyone follows those same rules, the whole group stays organised without needing a boss to watch them.

* The Power is Shared: Because no single person is the leader, no one can change the rules or take away your toys without the rest of the group agreeing.

* Safe and Strong: If the "boss" in a normal room leaves or gets sick, no one knows what to do. But in a decentralised group, if one person leaves, the rest can keep playing just fine because everyone already knows the rules and helps each other.

Imagine you and your friends are in a big circle playing a game. In a normal game, there might be a "judge" who decides who wins and who loses. But in a peer-to-peer trust network, there is no judge.

Here is how it works:

* Everyone is Equal: "Peer-to-peer" (P2P) means that every kid in the circle has the exact same power. No one is more important than anyone else.
* Talking to Everyone: Instead of everyone telling a "boss" what they are doing, you talk directly to your neighbors. If you give a toy to a friend, you tell the people sitting next to you, and they tell the people next to them, until everyone knows what happened.
* Checking the Rules: Even if you don't know the other kids in the circle, you don't have to "pinky swear" or hope they are being nice. You have a list of simple rules in front of you. Every time someone does something, you check it yourself to make sure they followed the rules. If someone tries to cheat, you simply ignore them and don't tell the rest of the circle about their bad move.
* Trusting the Game, Not the Players: This is called a "trust network" not because you trust the other people, but because the game is designed so that cheating doesn't work. You trust the mathematical rules of the game to keep your "toys" (bitcoin) safe.

A blockchain is like a special, giant notebook that everyone in the world can see and share. Instead of just one person keeping the records, everyone has an exact copy of the same book. Each page is called a block, and it is full of notes about who shared which toys. Once a page is finished, it gets a secret code that links it to the page right before it, making a long, strong chain. Because all the pages are glued together with these codes, no one can change the notes or rip out a page without everyone else noticing that their book doesn't match anymore. It is a very safe way for friends and even strangers to agree on what happened because the whole group follows the same simple rules to keep the book honest.

Think of a tower of magical Lego bricks. Each brick has a list of games you played written on it. When you add a new brick to the top, it locks into the one below it so tightly that you can’t change a brick at the bottom without the whole tower breaking. Since everyone in the neighborhood has a matching tower, they all know exactly what the list says, and no one can sneakily change the past!.

In my opening paragraph I mentioned Bitcoin mining. What is this? Mining is a special job where people use very powerful computers to keep the entire Bitcoin network safe and organised. It is like a global competition where computers race to be the first to write down a new list of trades into a giant, shared digital notebook called the blockchain.

To win this race and get permission to write in the notebook, a computer must solve a very tricky mathematical puzzle. This puzzle is like a huge guessing game where the computer has to try billions of different numbers, one by one, until it finds a "lucky" answer that fits the rules. This takes a lot of hard work and energy.

The computer that finds the right answer first gets a special prize: brand-new bitcoins and some extra small fees from the people who were trading. This prize happens about every 10 minutes. Because it is so difficult and expensive to win this game, it prevents "bad guys" from trying to cheat or change the notes in the book, because they would have to do all that impossible work all over again.

Imagine a race to find one specific gold-coloured grain of sand in a massive beach. There is no special trick or shortcut; you just have to pick up every grain and look at it one by one. This is the "work". As soon as one person finds the gold grain, they hold it up for everyone to see. It only takes a second for the other people to look and agree, "Yes, that is the gold grain!" Because it took so much effort to find that one grain, everyone knows the winner really did the work, and no one can easily cheat the system by pretending they found it first.

Proof-of-Work (PoW) is like a global guessing competition where the prize is the right to add the next page of transactions to the blockchain. Computers called miners must solve a mathematical puzzle that is incredibly difficult to finish but very easy for everyone else to check. To find the answer, a miner has to guess billions and billions of times, changing a small number called a "nonce" over and over until they happen upon a lucky result that matches a specific "target".

Once a miner finds the winning guess, they show it to the whole network; everyone else can then see that the work was done instantly because the math only produces that specific answer if you actually spent the energy guessing. This makes the system very secure because if a "bad guy" wanted to go back and change a page in the notebook, they would have to do all that hard work again for that page and every page that came after it. Doing this is practically impossible because it would require more power than the world's top supercomputers have. Miners have a strong reason to follow the rules because they are rewarded with new bitcoins and fees for being honest, whereas if they try to cheat, the rest of the group will simply ignore them, and all the expensive electricity they used will be completely wasted.

Good Going!

Great! You made it through this blog post. I hope I've explained some of the basic ideas behind bitcoin in a way that has made them a little easier to grasp. You could now read the original paper that started it all here: Bitcoin: A Peer-to-Peer Electronic Cash System and come back to this page to post questions for me. But whatever you do ...

Invest in bitcoin today. Do it! My first bitcoin (and those of my friends) were bought at less than 1 (One) Dollar per coin and today as I write this it's hovering around $90,000 per coin! If you had bought TEN dollars of bitcoin in 2009 today you'd be worth nearly $1,000,000!

Bitcoin is going to a million dollars a coin within the next 5 years. It has to. AI needs it to and AI is here to stay and will only increase in value, penetration and use in all our walks of life. Think about it!

< In my next CryptoPost I'm going to talk about how the 'crypto' part works and about how you could start investing in bitcoin and ether. Wait for it! >

Leave a Comment