Generally any crypto-currency other than Bitcoin or Ethereum. (Though some Bitcoin folks would probably still say Ethereum is an altcoin).
Taking advantage of a difference in price of the same commodity on two different exchanges. Often mentioned when it comes to comparing ETH prices on Korean exchanges against US exchanges.
All-Time-High. We’ve gotten a lot of these the past couple months.
The classification of technology that Ethereum falls into. Blockchains are distributed ledgers, secured by cryptography. They are essentially public databases that everyone can access and read, but the data can only be updated by the data owners. Instead of the data residing on a single centralized server, the data is copied across thousands and thousands of computers worldwide.
An expectation that price is going to increase.
An expectation that price is going to decrease.
Someone still holding an altcoin after a pump and dump crash. Can also just refer to someone holding a coin that is sinking in value with few future prospects.
Decentralized Autonomous Organization. An investor-directed venture capital fund built on the Ethereum network that was hacked in June 2016. The hack stole about a third of the DAO’s funds and led to Ethereum being hard-forked the following month. The DAO is often cited as one of Ethereum’s biggest stumbles thus far.
Websites where you can buy and sell crypto-currencies. Some popular exchanges are:
Government-issued currency, such as the US dollar.
Decentralized Application. This refers to an application that uses an Ethereum smart contract as it’s back-end code.
A potential future event wherein Ethereum’s market cap surpasses Bitcoin’s market cap, making Ethereum the most ‘valuable’ crypto-currency. This site shows the progress of the Flippening in real-time: http://www.flippening.watch/
A measurement of how much processing is required by the ethereum network to process a transaction. Simple transactions, like sending ether to another address, typically do not require much gas. More complex transactions, like deploying a smart contract, require more gas.
The amount of ether to be spent for each gas unit on a transaction. The initiator of a transaction chooses and pays the gas price of the transaction. Transactions with higher gas prices are prioritized by the network.
Initial Coin Offering, somewhat similar to an IPO in the non-crypto world. Startups issue their own token in exchange for ether. This is essentially crowdfunding on the Ethereum platform.
Fear Of Missing Out. The overwhelming sensation that you need to get on the train when the price of something starts to skyrocket.
Fear, Uncertainty, and Doubt. Baseless negativity spread intentionally by someone that wants the price of something to drop.
The act of ‘magnifying’ the intensity of your trades by risking your existing coins. (NOTE: Very risky, only for experienced traders and only on certain exchanges even then)
The total value held in a crypto-currency. It is calculated by multiplying the total supply of coins by the current price of an individual unit. This site shows a great run-down of each coin’s market cap: http://coincap.io/
A device that can securely store crypto-currency. Hardware wallets are often regarded as the most secure way to hold crypto-currency.
The process of moving crypto-currency ‘offline’, as a way of safekeeping your crypto-currency from hacking. There are a variety of ways to do this, but some methods most commonly used: -Printing out the QR code of a software wallet and storing it somewhere safe, such as a safety deposit box. -Moving the files of a software wallet onto a USB drive and storing it somewhere safe. -Using a hardware wallet.
Storage for crypto-currency that exists purely as software files on a computer. Software wallets can be generated for free from a variety of sources. MyEtherWallet (MEW) is one of the popular. (more on MEW below).
Market Order / Market Buy / Market Sell
A simple purchase or sale on an exchange at the current price. Market buys purchase the cheapest ETH available on the order book, and market sells fill the most expensive buy order on the books.
Limit Order / Limit Buy / Limit Sell
Orders placed by traders to buy or sell a crypto-currency when the price meets a certain amount. They can be thought of as ‘for-sale’ signs. These orders are what are bought and sold against when traders place market orders.
Sell Wall / Buy Wall
Using a depth chart, traders can see the current limit buy and sell points. The graphical representation on the depth chart looks like walls: http://media.coindesk.com/uploads/2015/05/image-1.png
Shilling / Pumping
Someone essentially advertising another crypto-currency. If a coin is promised to cure cancer or be the second coming of Jesus, it’s being shilled.
A crypto-currency with extremely low volatility that can be used to trade against the overall market.
Pump And Dump
The recurring cycle of an altcoin getting a ton of attention, leading to a fast price increase, and then of course followed by a huge crash. ROI Return on Investment. The percentage of how much money has been made compared to an initial investment. (i.e., 100% ROI means someone doubled their money).
Trend Analysis or Technical Analysis. Refers to the process of examining current charts in order to predict which way the market will move next.
A computer that possesses a copy of the blockchain and is working to maintain it.
The process of trying to ‘solve’ the next block. It requires obscene amounts of computer processing power to do effectively, but is rewarded with ether.
A computer especially designed for processing proof-of-work blockchains, like Ethereum. They often consist of multiple high-end graphic processors (GPUs) to maximize their processing power.
A situation where a blockchain splits into two separate chains. Forks generally happen in the crypto-world when new ‘governance rules’ are built into the blockchain’s code.
Proof-of-work. The current consensus algorithm used by Ethereum.
Proof-of-stake (not piece of shit). The proposed future consensus algorithm to be used by Ethereum. Instead of mining in its current form, people that own ETH will be able to ‘lock up’ their ether for a short amount of time in order to ‘vote’ and generate network consensus. The plan is that these stakeholders will be rewarded with ETH by doing so.
A scaling solution for blockchains. Typically, every node in a blockchain network houses a complete copy of the blockchain. Sharding is a method that allows nodes to have partial copies of the complete blockchain in order to increase overall network performance and consensus speeds.
Code that is deployed onto the Ethereum blockchain, often directly interacting with how money flows. Not my quote, but: “A normal transaction allows you to send money from A to B. Smart contracts allow you to send money from A to B, on the condition that C happens.”
The smallest denomination of ether. 1 Ether = 1000000000000000000 Wei (1018)
Someone that owns absurd amounts of crypto-currency.