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Hello everyone,

This week professor @pelon53 has been shared an important lecture about ERC-20 and ERC-721 token with us. Thank you for this valuable information. I went through this lecture I learn a lot from this class. Now I am submitting a homework task.

Explain the ERC-1155 Token in detail.

Well ERC stands for Ethereum, Requests, and Comments and 1155 is the EIP number. The ERC-1155 is an interface for contracts and manage multiple token types. In other words that manage both the contacts fungible(currencies) and non-fungible like digital cards, games, etc.

On Ethereum network ERC-1155 introduces by a team of developers Witek Radomski, Andrew Cooke, Philippe Castonguay, James Therien, Eric Binet and, Ronan Sandford on 2018-06-17. The idea behind is on ERC type-token like ERC-20 and ERC-721 token are required separate contact. And that's a lot of redundant bytecode on the Ethereum network. Whereas it's very limited functionality owns permission address. For using games like Enjin Coin to support the same token type, developers may need to create a thousand token types and if some new token intrudes in that case it should support that too. However, ERC-1155 has not restricted to any particular type because it supports multiple token types of ERC tokens.

Key Feature of ERC-1155 Tokens

• Multi token: As ERC -1155 we can say it's the generic token type with support fungible, non-fungible, and semi-fungible on the same contract.

• High security: This interface developed in such a way so the rate of error margin I negligible. For example in ERC-20, the user sends a token to an unknown address unknowingly there is no way to recover that process.

• Large scalability: By using ERC-1155 users get more resilience over the transaction. Instead of using a separate contract for each token.

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

The ERC-721 tokes basic introduced for Non-fungible token to maintain uniqueness and interchange asset like a digital file, a song, or an album.

As the main purpose of verifying ERC-721 is to ensure NFT asset ownership. ERC-721 uses a complex algorithm to get security and maintain uniqueness. That the whole point of being introduced Over ERC20. For that, there are certain parameters like tokenId , contract address, and uint256. These parameters must be globally unique.

As the professor already mentioned use etherscan platform.

In order to verify the ERC-721 token, this is the official site
https://etherscan.io

Screenshot from https://etherscan.io/

In the above image, we can see the top nav bar follows as Home, Blockchain, Tokens, and resources. Once we hover the mouse cursor on tokens, Then get list items.

Then clicked ERC721 top tokens we landed on Non-Fungible Token Tracker
ERC-721 page and in the top left corner in the rectangular box as A total of 11140 tokens contract fund till date 08/05/2021 12:31 am
IST time.

It's simple to track ERC721 the ownership, contact, and holder. For example in a gaming project Sorare we can see the below screenshot.

Screenshot from etherscan.io

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

TRC20 Token is similar to ERC20 (Ethereum blockchain) smart contact on TRON blockchain. TRC20 token is most prominent in the crypto market for traders and investors.TRC20 developed the absence of TRC10 standard tokens.TRCC20 is a high energy level and bandwidth capacity compared to TRC10 standard tokens. That's why startups and entrepreneurs are willing to create TRC20 tokens and approaching TRC20 standard tokens.

The same way Open Oficial platform https://tronscan.org/#/

Screenshot from https://tronscan.org

In the above screenshot on the top menu bar just put the cursor to the 3rd navbar that tokens and we can clearly see the Token tracker option, Once we clicked will be redirected to the token tracker page on the side there are four tab list
All, TRC10, TRC20 and, TRC721, Just click on the TRC20 screen appear as below.

Screenshot from https://tronscan.org

And as in the left side rechange box is the total existence tokens that are A total of 16,135 tokens by IST time 08/05/2021: 6:10 pm

TRC20 can be verified based on these parameters Contract Address, Contract Name, License, and Compiler version.

Screenshot from tronscan.org

Conclusion

Now we understand that how powerful full is ERC1155. That works for multi standards all in one for ERC tokens like ERC-20 and ERC-721. It provides a unique feature interoperability concept. Once again I would like to thank you, professor @pelon53, and the Steemit Crypto Academy community for that knowledge-sharing opportunity.