Cryptocurrency and Blockchain Dictionary

Terms commonly used in the world of blockchain and cryptocurrency

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Node

Node – a device that is connected to the P2P network. Each node has a copy of all the previous transactions and supports the network by validating and relaying transactions.

Other Important Terms

Ethereum is a decentralized, open-source blockchain with smart contract functionality. Launched in 2015, Ethereum is the world's programmable blockchain. Like other blockchains, Ethereum has a native cryptocurrency called Ether (ETH). ETH is digital money. People all over the world use ETH to make payments, as a store of value, or as collateral. But unlike other blockchains, Ethereum can do much more.

FUD

FUD – short for Fear, Uncertainty, Doubt. Describes the act of sharing negative rumors about a certain cryptocurrency or the market in general, which can negatively affect their price. Usually the rumors are not based on any evidence.

Fungible Token

Fungible token – a cryptocurrency asset that is divisible, interchangeable and is similar to other tokens of its kind. For example, bitcoins are fungible tokens because any bitcoin can be divided, exchanged for another bitcoin and is not unique in any way.

Blockchain

Blockchain is most simply defined as a decentralized, distributed ledger technology that records the provenance of a digital asset.

Race Attack

Race attack – a double spend attack on the P2P network which is only possible if the recipient of the transaction accepts unconfirmed transactions as a payment. If this is true, the attacker broadcasts a conflicting transaction to the network at the same time; in case the conflicting transaction gets more confirmations, an attack is successful and the recipient does not get paid. It is easier to carry out such an attack if the attacker has a direct connection to the victim’s node, and perhaps deposits the conflicting transaction directly to miners

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