Ethereum blockchain erc20 token

1.

in order to create erc20 token, you need to write down the following contents

1. token name
2. token symbol
3. token decimal
4. number of tokens is in circulation
5. Contract
6. code verification source code

in addition to erc20, there are erc20, erc721, erc223, erc621, erc827, But for erc721, by the way, erc721 is a protocol mainly used for blockchain games. The blockchain games you often see are basically based on erc721

2. Ethereum is an open source public blockchain platform with smart contract function. It provides decentralized virtual machine (Ethereum virtual machine) to process point-to-point contract through its special cryptocurrency ether (also known as "Ethereum"). The concept of Ethereum was first proposed by vitalik buterin, a programmer, from 2013 to 2014, inspired by bitcoin, to the effect of "next generation cryptocurrency and decentralized application platform". It began to develop through ICO crowdfunding in 2014
Ethereum is not only a database, it also allows you to run programs in the trusted environment of the blockchain. Ethereum has built a virtual machine named EVM (Ethereum virtual machine) on the blockchain. EVM allows code to be verified and executed on the blockchain, providing guarantee for code to run in the same way on everyone's machine. These codes are included in the smart contract. In addition to tracking the account balance, Ethereum uses the same method to save the EVM status on the blockchain. All nodes process the smart contract to verify the integrity of the contract itself and its output.

3. Ethereum is a low-level system that can realize intelligent contract and open source on the blockchain. At present, the biggest development problem of Ethereum is that all applications use the main chain, which leads to the main chain not being separated and blocking seriously. The mission of aelf (ELF) is to solve it,? LF emphasizes the pure decentralized network, the side chain and the main chain can flow, and the asset side chain is connected to the main chain. It focuses on the "n-side", because it turns the planar blockchain structure into a three-dimensional multi-dimensional structure. It can divert the block trading volume to the greatest extent. Therefore, problems like "blocking" or even "paralyzing" existing in Ethereum will not appear on aelf. This is also the reason why elf token will double in two weeks, indicating the development direction of the next regional chain technology.

4. No, I can't. let's switch to other ways

5. It's 1:1. The value is the same. The assets won't shrink. It's very good

6. ECall token: eCall is erc20 token realized through Ethereum smart contract. It adopts block chain technology. All transaction processes on the chain need the approval of each node in the network, and the whole process is transparent and open. The currency was launched on Bitz, hotcoin, dcoin and AEX exchanges in November, opening the ecell / usdt trading pair. Previously, ecell has been launched on bittrex global and MXC Matcha exchanges. As a token on the Ethereum chain, ecell's various advantages are worth promoting.

7. Open safegem hot wallet app -- & gt; Click erc20 -- & gt; Click the currency to be added - & gt; Scan activation QR code with Anbao hot Wallet - & gt; Currency added successfully.

8.

Rc20 token standard (erc20 token standard) is a standard used to create token through Ethereum. According to the erc20 specification, a smart contract can be written to create a "interchangeable token". It is not mandatory, but following this standard, the token created can interact with many exchanges, wallets, etc. it has now been widely accepted by the instry

erc20 token standard was first proposed by Ethereum developer Fabian vogelsteller in the open source community. Later, Ethereum founder vitalik (known as "V God") wrote the first version of the document, which was called "standardized contract API" at that time_ Contract_ APIs

following erc20 token standard, smart contracts can be written. The token methods it needs to implement include: optional name, symbol, decimals, balance of, transfer, transfer from, approve, and allowance. The event responses it needs to implement include transfer, approve

in addition to erc20, Ethereum also focuses on erc721. Different from erc20, erc721 is a non fungible token standard (NFT)

The general syndromes of

erc20 are interchangeable and homogeneous, while the general syndromes of erc721 are not interchangeable and heterogeneous; Erc20 can be subdivided infinitely, while erc721 can not be subdivided because its minimum unit is 1

in June 2018, erc721 was officially accepted by Ethereum community and became the final standard. The popular cryptokitties followed the erc721 standard

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