Thomas'

[Book] Ethereum Blockchain Developer

It's done. Over 300 pages. Full of knowledge. The Ethereum Blockchain Developer Book. It starts very gentle, with Remix, teaching some Solidity basics. But quickly guides you through the whole workflow of a

Ethereum Session: Connect Solidity to JavaScript

One part of being a trainer is to answer questions. Sometimes complex questions, sometimes simple ones, but there is never a stupid question. A typical example for such a question is this one: How to interact with an Ethereum Smart Contract once it's deployed using JavaScript?

course

Ethereum Blockchain Entwickler werden - Videokurs

Solidity Anfänger oder Ethereum Interessierter? In diesem Kurs lernst du nicht nur die Grundlagen, sondern auch den sicheren Umgang mit Solidity und die aktuellen Industry Best Practices! In einfach zu verstehenden Lektionen lernst

course

Become a Certified Blockchain Developer - Ethereum (CBDE)

With this course we guide you through the CBDE - Certified Blockchain Developer for Ethereum. This certification, which was created in partnership with the Blockchain Training Alliance and Pearson VUE, is helping HR

ethereum

Hands-On: Messenger Status.im

In this episode we are looking at the Ethereum Messenger “Status”. It’s a mobile app for Android and iOS that should bring the power of the Ethereum Blockchain to your phone. We’

ethereum

What exactly is the Gas Limit and the Gas Price in Ethereum

In this video we are talking about Gas! Specifically, we are deep-diving into the Gas Limit and the Gas Price and what it’s all about that. So, there the two things. The

tutorial

Upgrade Smart Contracts on Chain

It's not easy to get Upgradeable Smart Contracts right. You should be able to fix bugs or enhance features, obviously. But not at the cost of loosing immutability. It's this element of trust

course

Initial Coin Offering A-Z™: Become A Smart ICO Investor

A Comprehensive Course To Help You Understand, Evaluate & Invest in Cryptocurrency ICOs, Without Being Caught By Scams! Initial Coin Offering A-Z™: Become A Smart ICO Investor - is the most complete course

tutorial

Why You Should NEVER Ever Send Money From An Exchange To A Crowdsale Contract

While for many people it's the most obvious thing, for others it's not. Investing in an ICO. Properly and Safely! You might know that situation. You see an investment opportunity somwhere and you

tutorial

How I Cash-Out Ether in MANILA

Recently I was in Manila and I thought: "What if I forgot my Credit Card and still have some Ether left?". Can I still get money without the help of my

Truffle 4 - Full Size Snickers

Truffle 4: Just released and packed with exciting features, we are looking close into Debugging and Testing. In this Ethereum Session we are going to deep dive into Truffle 4 new features. I'm

ethereum

The Ethereum Ecosystem

With plenty of tools out there, and many more in the making, the Ethereum Ecosystem is evolving so fast that it's hard to keep up. I work with plenty of tools on a

ico

ICO Due Diligence Framework

Investing in ICOs is easy. Just send money to a contract and receive tokens in return. Successful investing is a different story. Most tokens out there are completely useless. I will tell you exactly how to spot them before you loose money!

solidity

Solidity: .call() vs. .delegatecall() vs. Libraries

In this short video we look at the difference between .call() vs. .delegatecall() vs. Libraries in Solidity. Specifically we look at a very simple contract that emits an event with the address of

ethereum

Case-Study: 4 Recent ICOs and the SEC

With the massive success of Ethereum ICO is being used all the more for funding the development of similar crypto projects. In case you’re willing to know better about Ethereum ICO and their legal tidbits, here is a detailed insight on leading ICOs in the market

solidity

Mappings and Structs in Solidity

In this video we are having a look at Mappings and Structs in Solidity. This is one of 110 video-lectures in the Ethereum Developer Masterclass where you will learn everything there is to

course

Free Ethereum Beginners Course

100% FREE COURSE: Build A Hello World Blockchain App - is the only course you need to begin your journey with Ethereum Blockchain Development incorporating Solidity at a basic level, with step-by-step instructions guiding you through the entire process.

solidity

Pure vs. View vs. Constant functions

The new Solidity 0.4.16 is out. In this verison the new "view" and "pure" functions are introduced. I had a quick look what this means for you

course

Ethereum Developer Masterclass: Build Real World Projects

Ethereum Developer Masterclass: Build Real World Projects - is the most complete Ethereum Blockchain Development course online helping you to build complex, real world, ethereum based distributed applications successfully.

solidity

Exception Handling in Solidity

Since version 0.4.13 we have a new Exception handling in Solidity. Instead of a simple throwwe have now revert(), require() and assert(). In this short video I'll walk you through the

ethereum

Coins in an Exchange vs. a Hardware Wallet

Have you ever wondered why it is not recommended to keep the coins in an Exchange? There are many reasons for that, but most importantly, they are not yours. You are not in

ethereum

Handel mit Kryptowährungen, Initial Coin Offerings: Steuerrecht in Österreich

Der Handel mit Kryptowährungen wie Bitcoin oder Ethereum wird immer beliebter. Große Volatilität, starke Renditen und ein Bisschen das "Ungewisse wie im Wilden Westen" lassen derzeit Handelsplattformen von Kryptowährungen nur so

ethereum

Solidity - .send(...) vs. .transfer(...)

A short notice on the two functions address.send(amount); vs. address.transfer(amount); Since version 0.4.13 (actually since this issue is resolved) Solidity has one new important function, the transfer

hong kong

Hong Kong Notes

This is a letter to my younger self, discovering Hong Kong for the first time with tips and tricks I wish I knew... I am from Austria and my wife is from Hong

Links/Bookmarks April 2017

Every once in a while I dump the links that land in my bookmarks. I find these links mostly through HN or Reddit, or somewhere else on the web. My focus is mostly