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Simply Explained - Savjee

Signing transactions - Blockchain in Javascript (part 4)

Transactions on a blockchain have to be signed with a private key. This makes sure that people can only spend coins if they have the private key of their wallet.

Blockchain & Smart contracts: Digital Evolution Conference 2018

How does a Blockchain work? What can we do with it? How do Smart contracts come into the mix? I was invited to give a talk at the Digital Evolution conference ...

Graph theory: 🐺 wolf, 🐑 sheep and 🥗 cabbage

Use Graph Theory to transport a wolf , sheep and cabbage 🥗 across a river. Or use it to figure out how you can cross the 7 bridges of Konigsberg without ...

Ethereum's Constantinople Update & Difficulty Bomb

Ethereum is about to get another big update. It's called Constantinople and will increase the performance of the network and introduce some new features.

How do computers keep time?

My first laptop lost track of time, so that got me thinking: how do computers keep track of time? Can they do it forever? And why don't they lose track of time when ...

How cookies can track you (Simply Explained)

Cookies can be used to invade your privacy and track you around the internet. But what are cookies and how do they work? They were initially invented to make ...

Blockchains: how can they be used?

We've all heard about Blockchains but how can they be used in the real world? How can we apply them? What problems can they solve? Well, in this video I'll ...

IPFS - Simply Explained

IPFS wants to decentralize the web and make it "Interplanetary", wow! But how does that work? Let's take a look at how IPFS works, how it can solve issue's like ...

Passwords & hash functions (Simply Explained)

How can companies store passwords safely and keep them away from hackers? Well let's find out! With all the data breaches lately, it's likely that the password ...

Proof-of-Stake (vs proof-of-work)

Cryptocurrencies use a ton of electricity because of mining. In recent years people started working on a different technique called Proof-of-Stake. Not only does it ...

Software powering Falcon 9 & Dragon - Simply Explained

The Falcon 9, Falcon Heavy and Dragon are very advanced spacecrafts. So that got me thinking: what is powering these vehicles? In this video we'll take a look ...

ERC20 tokens - Simply Explained

Not all cryptocurrencies have their own blockchains. Instead they run on top of other platforms like ERC20 tokens run on top of Ethereum. This video explains ...

Miner rewards & transactions - Blockchain in Javascript (part 3)

Implementing miner rewards and basic transactions in our Javascript based blockchain. Mining rewards steadily introduce new coins into the system. OOPS ...

Differential Privacy - Simply Explained

Companies are collecting more and more data about us and that can cause harm. With differential privacy companies can learn more about their users without ...

Meltdown & Spectre vulnerabilities - Simply Explained

Two huge security issue's found in almost all modern processors. How do they work and what can we do about it? Let's find out! Make sure that you install all the ...

Cardano - Simply Explained

Cardano (ADA) is gaining a lot of traction, but what makes it so special? In this video I'll explain all the problems that the Cardano team intends to solve. It boils ...

IOTA's Tangle - Simply Explained

How does IOTA's tangle work and how does it compare to a traditional blockchain like the one Bitcoin uses? In this video I'll explain these topics in a simple way!

Happy holidays from Savjee!

I want to thank you for an amazing 2017 and I wish you all the best for 2018! Enjoy the holidays! Have a great time with your friends & family. Follow me on ...

Bitcoin's Lightning Network, Simply Explained!

Bitcoin has a 7 transaction/second limit, so how can we overcome this? The Lightning Network is one of the proposals and in this video I'll explain how it works.

What is a Bitcoin hard fork? Simply Explained!

Recently we've heard about a Bitcoin hard fork. But what is a hard ford? What's the impact on a cryptocurrency and why are they created? In this video I'll explain ...

Smart contracts - Simply Explained

What are smart contracts and what do they have to do with blockchains and cryptocurrencies? Well, let's find in plain English! Want to buy Bitcoin or Ethereum ...