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.
This is a copy of any token transferred from one blockchain to another.
There are many blockchains in the cryptocurrency industry: Bitcoin, Ethereum, Cosmos, Avalanche, etc. Blockchains are deprived of the opportunity to "understand each other": everyone acts according to their own rules and speaks their own language. Each blockchain has its own Native token - a coin that is used to pay for the commission:
for the Bitcoin network, this is bitcoin (BTC)
for Ethereum - ETH
For Cosmos - Atom
For Avalanche - Avax
If you want to carry out any actions, for example, send a USDT tokens to the EThereum network to another wallet, the commission will have to be paid in ETH tokens if Avalanche is an AVAX commission, etc. However, if you decide to send your USDT from Ethereum to Avalanche, your USDT will be lost. Why? Because USDT on the Ethereum and USDT network on Avalanche is not the same thing, because we remember that each blockchain lives according to its own rules.
And what to do if you urgently need to send your USDT from one network to another? For these purposes, cross -miners were invented - special applications that allow you to translate tokens from “one language to another”, that is, from one blockchain to another. In one network, the token is blocked, and in another - a copy is created that does not lose its original value. For example, if you transfer BTC from the Bitcoin network to Ethereum, it will become WBTC, i.e. wrapped.
These are non -replaceable tokens. Each of these tokens is unique, inseparable and exists in the singular.
This is a unit of computing work for the implementation of transactions or smart contracts in the Ethereum network.
Any action on the Ethereum network requires a certain amount of electricity, computing power and miner time that must be paid. GAS in this case acts as a total indicator - how many resources are required to perform a particular transaction.
For example, the execution of a certain transaction requires 21010 GAS, the price of 1 GAS is 6 Gwei or 0.000000006 ETH, then the cost of the transaction will be 126060 GWEI or 0.00012606 ETH.
Blockchain is most simply defined as a decentralized, distributed ledger technology that records the provenance of a digital asset.
This is a standard, a certain set of rules that allows developers to create tokens over the Ethereum blockchain. These tokens are known as ERC-20 tokens. The ERC-20 standard is the most common in the cryptocurrency industry today.
