Hello All.....

Today I will try to work on the homework given by professor @pelon53, which is about token part 2, which is about: ERC-20 and ERC-721. This Class is very interesting to discuss, let me discuss some of the questions our professor gave us.

## ERC-1155 Tokens


![1155.jpeg](https://cdn.steemitimages.com/DQmZFpRw5dBYMyrTWeRbqfu3wDAMxiRoQwLeBTTYDKDYMJi/1155.jpeg)
[source](https://www.google.com/search?q=token+erc-1155&safe=strict&sxsrf=ALeKk02G92Uq4YwP93V9Msa2pbNuAkSeuA:1620289890020&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjUis-a0rTwAhUCU30KHYYyAFEQ_AUoAnoECAEQBA&biw=1366&bih=657#imgrc=HLRfJgw2ocvvbM)

The ERC-1155 token is a form of innovation from the previous token tokens, namely ERC-20 and ERC-721, therefore the ERC-1155 token is called a multi token. So it can be said that this token was created to improve the quality of the previous token tokens, to make it easier for all users. The ERC-1155 token can be said to be very efficient because one smart contact can manage an unlimited number of other token tokens. This can be said to be very useful for the users of this token.

The ERC-1155 token is usually used on blockchain-based gaming platforms. For example, in a game, of course, we have to buy items in the game, all of which we can buy using ERC-1155 tokens because the items we buy in the game are contracts from ERC-1155 that we use on the game platform.

### ERC-1155 Token Innovation from ERC-20 and ERC-721 Tokens

As a form of innovation of the ERC-1155 token from ERC-20, in ERC-20 tokens, of course we often get some address errors in making transfers, so the ERC-1155 Token can cancel transfer transactions so that the tokens can be returned, this is very helpful for the the token user. The innovative form of the ERC-1155 token from the ERC-721 token is that the transaction fees for the ERC-721 token can be said to be higher because several amounts of tokens cannot be transacted in one transaction, so the ERC-1155 token with several advantages in this token can make multiple transactions. tokens in one transaction at a time so as to streamline transaction costs.

## How to Verify The Amount of ERC-721 Tokens Using Etherscan

* visit the [etherscan.io](https://etherscan.io/) address then select the tokens text at the top of the screen

![1.jpg](https://cdn.steemitimages.com/DQmfNT23ViV1rc8LuA4JDdZh6Ed8E9nerNpeYE1RK4Sm13A/1.jpg)

* After choosing tokens then there are several choices, then choose ERC-721 Top Tokens


![2.jpg](https://cdn.steemitimages.com/DQmNqWU3PHzZqmUZSuY6G5tennBuSs9kakF92VjaGaiohgh/2.jpg)

* after that, a display showing the current number of ERC-721 tokens appears. when I opened it, the number of ECR-721 Tokens was 11,113 as shown in the screenshot


![3.jpg](https://cdn.steemitimages.com/DQmdSmeNHYYMiGF5Z84mhzmJKMahcmKwZcW9L6Lh7v5rao5/3.jpg)

that's how to see the number of ERC-721 tokens on Etherscan


## TRC20 Tokens


![understanding-tron-token-standards-trc10-and-trc20.png](https://cdn.steemitimages.com/DQmRX9tWsoBCZCEE9nMEXCQAyk3KhZwksZ52Wgru3fXncq3/understanding-tron-token-standards-trc10-and-trc20.png)
[source](https://www.google.com/search?q=trc20+tokens&safe=strict&sxsrf=ALeKk03rxxh-jP4L1NN2Qqmf6r6IhG46sQ:1620291553776&source=lnms&tbm=isch&sa=X&ved=2ahUKEwiXy_qz2LTwAhXBF3IKHVWfCqQQ_AUoA3oECAEQBQ&biw=1366&bih=600#imgrc=t7v7wlav5Zf-QM)

TRC20 token can be said to be a very popular token today because this token is very much in demand on the market. The TRC20 token has the same script code as the ERC20 token, so it can be said that the token development team can make it easier to do more to develop this token. TRC20 tokens are usually made transactions on decentralized applications. Like exchanges and others. TRC20 is the most common token among traders and investors because this token can help investors and traders to conduct token trading transactions risk-free.

TRC20 is a token that is on the TRON network like the TRC10 token, which is the advantage of TRC20 is its low transaction fees. TRC20 requires a large amount of energy and bandwidth, so that the TRC20 token can be said to have advantages in its fast, safe and cheap transactions.

### Amount of TRC20 tokens

Here's how to see the number of TRC20 tokens currently available:

* visit the address [tronscan.io](https://tronscan.io/#/), then select the token on the screen


![11.jpg](https://cdn.steemitimages.com/DQmSu75DUGza14x97vtwo5jWMF8QT2RUYXJor3T92RFiWnh/11.jpg)

* After selecting the token, you will see several options, then select Token Tracker


![12.jpg](https://cdn.steemitimages.com/DQmUqRcR6UMvPdHKUcv4Cz4cFH8P9WfA5Wja19GjHmKJGvm/12.jpg)

* After that you can see several options in the right corner, such as TRC10, TRC20, and TRC721, then choose TRC20, after that you can see the number in the left corner as I have marked. when I opened this page the number of TRC20 tokens was 15,972 as seen in the picture.


![13.jpg](https://cdn.steemitimages.com/DQmRQj9GLgLAdZ72ejZzi3GX8ayUHTGXycs3szRGkG33w3q/13.jpg)

that's how to see the number of TRC20 tokens available on Tronscan

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That's all my homework, hopefully it can be useful. Thanks.....

Cc: @pelon53
Cc: @steemcurator02