Steemit Crypto Academy Season 2: Week4 | TOKENS, PART 2: ERC-20 and ERC-721

Hello @pelon53, I must appreciate your time and effort to put the class together, I am glad to be a student in this class and I hope to be a part of your subsequent classes. Without any further Ado, I should get started by answering the question.

ERC-1155 Token Standard

ERC-1155 Token Standard is a multi-token with different use cases, carrying the ability of ERC-20 and ERC-721 together in one roof. The ERC-11555 created in 2018, has the ability to create fungible tokens, semi-fungible tokens as well as non-fungible tokens in one smart contract, at the same time. Developed by Witek Radomski, James Therien, Philippe Castonguay, and Ronan Sandford, Eric Binet, and Andrew Cooke who are developers of Enjin.

The ERC-1155 token standard allows the characteristics of ERC-721 such as the ability to create a non-fungible, unique, collectible token and at the same time, create a fungible token that can be traded and divisible into smaller units. Interesting is that several trades can be done at the same time, in a single transaction.

ERC-1155 token standard allows for mass transfers (eg, if more than 1 non-fungible token is available for transfer, ERC-1155 will allow for the tr) and can be used to represent assets or items as well as can be used to create currencies for exchange. With ERC-1155, tokens sent by mistake can be returned.

Explain how you verify the amount of ERC-721 tokens existing at the time of doing your homework. Present screenshot (use etherscan)

The first step is to visit Etherscan through https://etherscan.io/

Once the page is opened, click on the "tokens" button to get a window which will show tabs which includes "ERC20 Top Tokens", "View ERC20 Transfers" "ERC721 Top Tokens" and "View ERC721 Transfers". Select the "ERC721 Top Tokens" after which a list of ERC721 token will appear.

When the page with all the ERC-721 contracts open, at the left side, a column with the number of ERC-721 is shown

As at the time of screenshot and writing, the total number of ERC-721 contract is 11,115.

Explain the TRC20 Token and check the amount of TRC20 tokens existing at the time of doing your homework. Present screenshot (use tronscan)

As ERC-20 is to Ethereum, so is TRC-20 to TRON. Tokens on the Tron Blockchain are either TRC-20, TRC-721 or TRC-10. Tokens such as te Tether built on Tron blockchain are TRC-20 tokens, Basically, when people build dapps on the Tron Blockchain, most of the tokens are built on TRC-20 token standard.

To create TRC-20 tokens, the token needs to follow a few rules such as Token Name, Token Ticker, Token precision, Total supply , Balance Of, Transfer, Approve, Transfer From, and Allowance.

Check the amount of TRC20 tokens existing at the time of doing your homework

To check this, visit https://tronscan.org/

On the page, click on "Tokens" after which you click on "Token Tracker"

On the Token tracker page, there are options to view tokens on the TRC-20, TRC-10 and TRC721 standard. You will click on the TRC-20. The number of TRC-20 tokens will be showed on the left hand side of the page.

A total of 15,983 tokens are available, as at the time of writing.

Conclusion

After going through the class and participating in the assignment, I must confess that I appreciate the fact that I can make research on ERC-1155, ERC-721, and TRC-20. I hope to be a part of this class in the future