How Many Ethereum Are There?

Unlike Bitcoin, Ethereum’s total supply is not set. As of May 24, 2018, the circulating supply (ETH in existence) is 99,630,274 (Coinmarketcap).

What Is The Price Of Ethereum?

As of May 24, 2018, the price of Ethereum was $606.96.

However, Ethereum prices tend to fluctuate dramatically, and these prices swing on a daily (and hourly) basis.

It's important to note that the cryptocurrency market is very volatile - as you can see from the chart (5 year period) below:

Unfamiliar Programming Language

Ethereum uses its own programming language, Solidity.

Developers’ unfamiliarity with Solidity has led to code being written incorrectly, which led to problems like The DAO hack.

Projects similar to Ethereum have emerged addressing this issue and allow programmers to use more familiar languages like Javascript.

Scalability Issues

Ethereum, like Bitcoin, is facing problems, as it grows more popular.
The fact that games like CryptoKitties can cause network congestion is a cause for concern.

If Ethereum can’t handle many transactions, some critics are wondering how will it ever scale to meet the demands of a mainstream user base

Inflation

Transaction fees on the Ethereum platform are paid in Gas - and they can quickly inflate.

In fact, transaction fees increased by up to 70% Ethereum at peak usage.

As you can see in the chart below, transaction fees have fluctuated dramatically over the last few months.

Syncing Problems

Another technical problem with Ethereum is that sometimes the Ethereum wallet won't sync properly with the blockchain.

This means sometimes users can't see their wallet's actual balance - and the figures are can be inaccurate.

As you can imagine, that's a bit worrying for some users!

When several smart contracts are working in harmony, they can produce complex outcomes in a strict and exact way as programmed by the creator. When this happens, the group of smart contracts can be referred to as a decentralized application, or dApp.

To find out what the blockchain can enable us to do, it is important to note that the Ethereum blockchain gives us three types of dApps.

• Money based applications allow us to trade in money, transferring it from wallet to wallet, peer to peer, at a fraction of traditional costs.
• Applications that involve money allow for the transfer of other types of data, including records, licenses, certificates, etc. in exchange for that money.
• Other applications that do not necessarily involve the transfer of money but can give absolute provenance and security of other types of assets are also possible — for example, government systems like voting, opinion polls, and surveys.

Vitalik Buterin

When Bitcoin was gaining ground as a breakthrough in cryptocurrencies in 2011, one of the earliest people to embrace the innovation was a 17-year-old coding and mathematics prodigy named Vitalik Buterin, a university student and a blogger at the time.

Bitcoin Magazine

In  Part 1, we built a simple voting dapp and got it working on our local machine. In Part 2, we moved our app to use truffle framework and deployed it to the public Ropsten testnet and interacted with it through the truffle console and through a webpage. In this tutorial, we will add few more features to our voting dapp in order to learn a few key concepts. Here is what you will learn in this tutorial:

1. Learn to use new data types like struct to organize and store data on the blockchain.
2. Learn the concept of tokens and its usage.
3. Learn to make payments using Ether, the currency of the Ethereum blockchain platform.

You can find all the code in chapter3 directory in this repository: https://github.com/maheshmurthy/ethereum_voting_dapp

As you may know, in a general election, every citize...