Hello Everyone!

This is Sami Zuberi , hope you all are well. I am exceptionally hope set aside a few minutes for perusing my homework post for @pelon53 and valued it. Here i am going to impart my views on "Sidechains". So how about we begin

• Made this above poster on canva

Question 1.

Explain in detail Sidechains with use of ZK-Rollup?

Sidechains are a mechanism for tokens and certain other digital assets to interact among multiple chains of blocks. A zero knowledge proof modification toward an existing rollup is the ZK-Rollup. In ZK rollups, the smart contract keeps track of all transactions on the blockchain, thus changes are only possible through validation evidence. When verifying a block with ZK rollups, just the validity proof is required the rest of the transaction data is not required. As a result, verifying a block is faster while also being less expensive due to the less amount of data involved. As K-Rollups are a Layer 2 scalability solution, the existence of ZK-Rollups will allow the blockchain to validate transactions quicker while using less gas costs. Layer 2 blockchains employ ZK rollups. In ZK rollups, the consensus mechanism keeps track of all transactions on the blockchain, and changes are only possible through validity evidence.

ZK-rollups are used in a variety of blockchain technologies including sidechains. Aztec is one of a blockchain system that utilizes the ZK-Rollup. Aztec seeks to use public blockchains to exchange crypto assets in a secure manner. The Aztec protocol enhances Ethereum's capabilities by allowing users to conduct transactions on the blockchain in a secure manner.

A sidechain, since we all understand, is a type of way of connecting one blockchain to another that is running simultaneously time, with the goal of preventing blockchain exhaustion, providing compatibility, and allowing users to utilize its features. The ZK-Rollups are controlled by two different sorts of participants transactor and relays. The relays create a ZK-SNASK, which would be a unique hash, by grouping the processes in a Rollup. The transactors are the ones that send a transaction towards the network, which is then aggregated using a merkle tree once that arrives. ZK-Rollup uses a complicated math and cryptographic method named a zero knowledge proof to show that it will only arise from two layers.

Question 2.

Explain Liquid Network Sidechain.

The Liquid Network sidechain is a private blockchain that is linked to the parent blockchain in both directions. Liquid seems to be an open source sidechain network that is gaining traction in the Bitcoin ecosystem. Liquid is a model that allows users to do more accurate and speedier BTC activities, such as transmitting crypto assets. The goal of this payment platform is to improve the layer of assurance, transparency, and scalability on the Ethereum blockchain. For virtual currencies, investment firms, traders, as well as other market participants, the Liquid Network functions as a resolution and transaction platform.

Users may conduct transactions in real time with low commission rates. Throughout all times, users have complete control and administration of their funds. Every user's actions, balance, information, and transaction data are kept secret and recorded automatically on the platform in a safe manner, ensuring the user's authenticity. The issue of scalability has been at the forefront of most blockchain systems. As a result of this issue, the technology has had a lower rate of acceptance. Blockchain networks aim to address these difficulties by implementing specific solutions.

The Liquidity Network is set up in such a way that global hubs are used. As a result, each user who joins a hub or center has the ability to conduct business with another hub participant. Because of the anonymity, efficiency, and confidentiality that Liquid gives to its users, new assets may be issued and sold without much any difficulty. One of the benefits of the Liquid Network Sidechain is that funds may be transferred between marketplaces, market agents, and various wallets extremely instantly.

Question 3.

Explain the steps to connect Metamask wallet and Polygon network wallet. Show screenshot.

• The first step in connecting the two wallets is to go to https://wallet.polygon.technology/ then you got the interface like that as shown in below screenshot so click on connect wallet.

• Then after clicked on connect wallet button, You'll get a window on which three options pop up. I clicked on metamask to connect metamask wallet through metamask extension.

• Then I got an interface where I need to enter my meta mask wallet password to login/unlock it.

• After entered the password it will ask you for confirmation then click on next step.

• Then after that, Click on connect button to connect metamask successfully.

• After clicked on connect button, I was successfully connect my meta mask wallet as you can clearly see in below screenshot it shows connected sites.

Question 4.

According to the polygonscan block explorer, when will the block 25,000,000 be generated? Show screenshot. Explore the 12,000,000 blocks, at that time, what was the price of the Matic? Show screenshots.

• You must first go to Polygonscan to begin this task. We can view the current price and the most recent block on the explorer. The most recent block is #20,752,320, and the current price is $1.99.

• However I'm checking for the #25,000,000 to be created. Thursday, February 15th, 2022, at 04:55:48 GMT+0500, is the predicted target date (Pakistan Standard Time). It also includes the number of days and the amount of time required for completing.

• Then I go to the Blockchain option and type " 12,000,000" in the search box.

• Price of Matic was $0.38 at the moment, according to the block height of #12,000,000.

Conclusion.

I conclude that professor gave us a very informative lecture through which i can learn more about Sidechains. Sidechains are a way for tokens as well as other digital assets to interact with each other across different chains of blocks. The ZK-Rollup would be a zero knowledge proof modification to an existing rollup. This is a positive development since it allows blockchain systems to grow swiftly and safely. It's also vital since many blockchain systems now incorporate smart contracts into their networks. Sidechains were developed to help parent blockchains scale. The network is made up of a mix of centralized and decentralized technologies. The goal is to make transactions extremely scalable while keeping transaction times low.