Ethereum ER20
Publish: 2021-04-19 08:30:23
1.
in order to create erc20 token, you need to write down the following contents
- token name
- token symbol
- token decimal
- number of tokens is in circulation
- Contract
- 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.
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. No, I can't. let's switch to other ways
4. What does trc20 mean? As we all know, there are many professional terms in the blockchain instry, especially some words related to technology, which are relatively obscure for many investors, but some common words we need to understand, such as erc-20 and trc-20 mentioned in this paper. What does it mean to mention these two words
trc20? As we all know, there are many professional terms in the blockchain instry, especially some words related to technology, which are relatively obscure for many investors, but some common words we need to understand, such as erc-20 and trc-20 mentioned in this paper. When we mention these two words, we have to mention usdt, and about usdt, As we all know, it is one of the entry currencies, a stable currency issued by tether company based on the 1:1 US dollar peg. So what does trc20 really mean? What does trc20 mean? And what's the difference between trc20 and erc20< br />
What does trc20 mean
rc20usdt is a stable currency jointly issued by wave field Tron and Teda Company tether. Compared with the old stable currency (omni usdt, erc20-usdt, etc.), trc20-usdt has greatly optimized the transfer fee and transaction confirmation speed
in terms of fees, trc20-usdt can realize free transfer. According to the withdrawal fees of mainstream exchanges, usdt based on Omni protocol has the highest withdrawal fee, ranging from US $4 to US $10, erc-20 from US $1 to US $5, and trc20-usdt has zero withdrawal fee, which means that users can enjoy the withdrawal service of exchange free of fees
in terms of transaction confirmation speed, usdt based on wave field network gives full play to the performance advantages of the third generation public chain. Wave field network's TPS can reach thousands of levels, and can realize transaction second level confirmation, which is significantly better than Omni (transfer confirmation takes 10 minutes to several days) and erc20 (minutes to several hours). The extremely fast transfer speed can meet the various needs of stable currency users, and avoid the damage to the interests of investors caused by network congestion
what is the difference between trc20 and erc20
1. Trc20 features
1
Yes! There is no service charge for transferring usdt in wave market, but there will be service charge for withdrawing trc-usdt in the exchange (charged by the exchange). Address example: (trc-20 contract)
2. It is still under test
most exchanges support the recharge of trc-usdt, but because trc-usdt is still under test, the recharge of the exchange is closed< Second, erc20 features
1. The type of service charge paid is eth
erc-usdt is the same as the token on other Ethereum, which is stored in Ethereum address, so the type of service charge to be paid is eth every time the transfer is made. Address example: (erc-20 contract)
2. Most exchanges support full withdrawal, and the withdrawal limit is low
basically, the mainstream exchanges support erc-usdt withdrawal, and they can choose to mention BTC address or eth address when withdrawing money. Moreover, taking fire coin as an example, the minimum withdrawal limit of erc-usdt (2 usdt) is currently less than omni usdt (200 usdt)< Different from omni usdt, erc-usdt can support smart contracts. In mainstream Ethereum browsers, you can query erc-20 usdt transactions. Interested users can go to tokenview's Ethereum browser to query erc-usdt transaction details
What does trc20 mean? Through the above introction, I believe you have some understanding of what trc20 means. As we all know, the advantages of trc20 can make investors feel good about investing in this kind of stable currency. With the halving of bitcoin, investors are uncertain about bitcoin, which aggravates investors' choice of stable currency, Therefore, some people in the currency circle think that the rise of trc20 as a global stable currency is the inevitable result of market choice
trc20? As we all know, there are many professional terms in the blockchain instry, especially some words related to technology, which are relatively obscure for many investors, but some common words we need to understand, such as erc-20 and trc-20 mentioned in this paper. When we mention these two words, we have to mention usdt, and about usdt, As we all know, it is one of the entry currencies, a stable currency issued by tether company based on the 1:1 US dollar peg. So what does trc20 really mean? What does trc20 mean? And what's the difference between trc20 and erc20< br />
What does trc20 mean
rc20usdt is a stable currency jointly issued by wave field Tron and Teda Company tether. Compared with the old stable currency (omni usdt, erc20-usdt, etc.), trc20-usdt has greatly optimized the transfer fee and transaction confirmation speed
in terms of fees, trc20-usdt can realize free transfer. According to the withdrawal fees of mainstream exchanges, usdt based on Omni protocol has the highest withdrawal fee, ranging from US $4 to US $10, erc-20 from US $1 to US $5, and trc20-usdt has zero withdrawal fee, which means that users can enjoy the withdrawal service of exchange free of fees
in terms of transaction confirmation speed, usdt based on wave field network gives full play to the performance advantages of the third generation public chain. Wave field network's TPS can reach thousands of levels, and can realize transaction second level confirmation, which is significantly better than Omni (transfer confirmation takes 10 minutes to several days) and erc20 (minutes to several hours). The extremely fast transfer speed can meet the various needs of stable currency users, and avoid the damage to the interests of investors caused by network congestion
what is the difference between trc20 and erc20
1. Trc20 features
1
Yes! There is no service charge for transferring usdt in wave market, but there will be service charge for withdrawing trc-usdt in the exchange (charged by the exchange). Address example: (trc-20 contract)
2. It is still under test
most exchanges support the recharge of trc-usdt, but because trc-usdt is still under test, the recharge of the exchange is closed< Second, erc20 features
1. The type of service charge paid is eth
erc-usdt is the same as the token on other Ethereum, which is stored in Ethereum address, so the type of service charge to be paid is eth every time the transfer is made. Address example: (erc-20 contract)
2. Most exchanges support full withdrawal, and the withdrawal limit is low
basically, the mainstream exchanges support erc-usdt withdrawal, and they can choose to mention BTC address or eth address when withdrawing money. Moreover, taking fire coin as an example, the minimum withdrawal limit of erc-usdt (2 usdt) is currently less than omni usdt (200 usdt)< Different from omni usdt, erc-usdt can support smart contracts. In mainstream Ethereum browsers, you can query erc-20 usdt transactions. Interested users can go to tokenview's Ethereum browser to query erc-usdt transaction details
What does trc20 mean? Through the above introction, I believe you have some understanding of what trc20 means. As we all know, the advantages of trc20 can make investors feel good about investing in this kind of stable currency. With the halving of bitcoin, investors are uncertain about bitcoin, which aggravates investors' choice of stable currency, Therefore, some people in the currency circle think that the rise of trc20 as a global stable currency is the inevitable result of market choice
5. Before BTD was connected to the public chain, the wallet address was also the address of Ethereum
later, when BTD was connected to the public chain, it used its own wallet address
now we see that the
erc20 address in the binding address doesn't need to be taken care of, just bind the BTD's wallet address
later, when BTD was connected to the public chain, it used its own wallet address
now we see that the
erc20 address in the binding address doesn't need to be taken care of, just bind the BTD's wallet address
6. Step 1: enter the interface and set a password, which is used to log in the wallet. Step 2: download the key file (a document at the beginning of UTC). Don't lose this file. This is the key file for you to open the wallet. Generally speaking, it is the key for you to log in to the door of the wallet. The registration and login of etherwallet and ICO investment tutorial are good. It only takes two steps to register the wallet. Next, how to log into myetherwallet. Step 1: click [send Ethernet coin / send token] step 2: log in with [keystorefile (UTC / JSON)] (other login methods are OK, you can choose this one), and then [Select wallet file], find the document that you saved before starting with UTC, enter the password you set before, and click [unlock]. The registration and login of etherwallet and ICO investment tutorial are OK. Congratulations on learning how to register and login. How to use Ethereum web wallet myetherwallet to invest in ICO project. Here I put it in a picture. First, you have to have ether. Left: it's your Ethernet address. You can withdraw the Ethernet from the exchange to this address. Right side: the address of the project side.
7. Jasmy coin uses Ethereum's address to sign the transaction, and pays the service charge by eth. Its own function also meets the erc20 standard.
8. Token is token, virtual token, erc20 is token standard
with Ethereum officially confirming erc-721 as one of the new token standards, many people are asking what erc-721 is recently. There are many technical posts on the Internet to analyze the code differences between erc-721 and erc-20. They are very unfriendly to Xiao and leek. With the attitude of sharing knowledge, I will try to explain the most significant differences between erc-721 and erc-20 with intuitive words
erc-20 standard token:
1
2. It can be subdivided into N parts (n = 10 ^ 18)
conclusion: similar to the currency in real life, it can perform all monetary functions. The application cases are similar to legal currency and virtual currency
erc-721 standard token:
1
2. The minimum unit is 1 and cannot be subdivided
summary: non homogeneity exists widely in life, such as art, pets, handicrafts, custom-made items, etc., and can even be used to mark students in schools, doctors and patients in hospitals, etc. The application scenarios are very wide
the above description is relatively concise. Taking a look at specific projects can help you better understand erc-721 standard. At present, the popular projects using erc-721 standard can take a look at
- cryptokitties (cryptokitties | collect and breed digital cats!)
this is the "ethereal cat" mentioned before. It's very basic and interesting. Each cat is a token with unique attributes. The more unique the attributes, the higher the value of the cat. It's very popular, but its development potential is limited
- 0xcert (0xcert - supporting uniformity.)
this project is a recent project of personal interest, which is close to life and easy to implement. Erc-721 token is used to mark real-life artwork or a unique item, and record the basic attributes, characteristics, value, previous owners, etc. It is very helpful in combating counterfeits and piracy. It may also be used in the second-hand market, exchange of valuables and other scenarios in the future
personally, I am very optimistic about erc-721 standard. After the whole blockchain instry calms down from the carnival, the implementation of the project has become the first consideration for developers, and erc-721 is very suitable for connecting the blockchain with the real world.
with Ethereum officially confirming erc-721 as one of the new token standards, many people are asking what erc-721 is recently. There are many technical posts on the Internet to analyze the code differences between erc-721 and erc-20. They are very unfriendly to Xiao and leek. With the attitude of sharing knowledge, I will try to explain the most significant differences between erc-721 and erc-20 with intuitive words
erc-20 standard token:
1
2. It can be subdivided into N parts (n = 10 ^ 18)
conclusion: similar to the currency in real life, it can perform all monetary functions. The application cases are similar to legal currency and virtual currency
erc-721 standard token:
1
2. The minimum unit is 1 and cannot be subdivided
summary: non homogeneity exists widely in life, such as art, pets, handicrafts, custom-made items, etc., and can even be used to mark students in schools, doctors and patients in hospitals, etc. The application scenarios are very wide
the above description is relatively concise. Taking a look at specific projects can help you better understand erc-721 standard. At present, the popular projects using erc-721 standard can take a look at
- cryptokitties (cryptokitties | collect and breed digital cats!)
this is the "ethereal cat" mentioned before. It's very basic and interesting. Each cat is a token with unique attributes. The more unique the attributes, the higher the value of the cat. It's very popular, but its development potential is limited
- 0xcert (0xcert - supporting uniformity.)
this project is a recent project of personal interest, which is close to life and easy to implement. Erc-721 token is used to mark real-life artwork or a unique item, and record the basic attributes, characteristics, value, previous owners, etc. It is very helpful in combating counterfeits and piracy. It may also be used in the second-hand market, exchange of valuables and other scenarios in the future
personally, I am very optimistic about erc-721 standard. After the whole blockchain instry calms down from the carnival, the implementation of the project has become the first consideration for developers, and erc-721 is very suitable for connecting the blockchain with the real world.
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