SmartContracts.

Having had a strong background in python, I looked for the language that was fit for me to write smart contracts on the BNB Smart Chain. Since the BNB Smart Chain is compatible with the Ethereum Virtual Machine(EVM), Vyper (a pythonic smart contract programming language) was a perfect choice for me.
Without wasting time , let's dive in the building procedure.
In this tutorial, we gonna be writing a very simple smart contract code that returns "Hello World".
Requirements:
Remix IDEMetaMask wallet chrome extension(recommended)
First, we need to setup our MetaMask wallet so as to be able deploy our smart contracts to the binance smart chain testnet.
Since we have everything properly setup, let's start the building process. Our next target is Remix IDE.
Set up Remix IDE to work with vyperlang:First, go to the plugin symbol just above settings and activate the Vyper compiler as shown below.Create a new file named 'testing12.vy'.Copy and paste the following code into our newly created file;```

# A simple Vyper contract@external def sayHello() -> String[13]:    return "Hello, World!"It's time now to compile our code.
Next is deploying our compiled code to bsc.You'll note that after pressing the deploy button, a metamask wallet window pops up requiring you to either accept or reject the transaction.
Lastly, we are going to check the status of our transaction.
First, go to https://testnet.bscscan.com/ . Here, you'll find a record of your transactions. The question is, how? Simply copy the block number from the remix IDE e.g; 40149350

and paste it into the search bar and press enter. You'll get such a result;

Closing Remarks:
Building on the Binance Smart Chain (BSC) using Vyper is an exciting journey into the world of decentralized applications (DApps). Vyper's simplicity and readability make it a great choice for smart contract development, especially for those who are new to blockchain programming or with a background in python.
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#smartcontracts. #vyper #BSCchain

Introduction
In September 2023 Binance launched opBNB its layer 2 scaling solution for the BNB Smart Chain BSC Since then opBNB has processed over 23 million transactions in a single day showcasing its ability to handle high volumes with remarkably low fees But what exactly is opBNB and why is it important for the future of blockchain technology Let us dive inWhat Are Layer 2 Solutions
Blockchain networks like BSC face scalability challenges where transaction speeds and costs can hinder user experience especially during peak times Layer 2 solutions such as opBNB address these issues by processing transactions off the main chain layer 1 reducing congestion and lowering fees These solutions allow for faster and cheaper transactions while maintaining the security of the base layerWhat is opBNB
opBNB is built on the OP Stack a framework developed by Optimism which enables the creation of optimistic rollups These rollups bundle multiple transactions together and process them off-chain only posting the final result to the main chain This approach allows opBNB to achieve high transaction throughput up to 4000 transactions per second TPS with gas fees as low as 0 point 001 USD It is designed to enhance BSCs scalability while preserving affordability and securityBenefits of opBNB
For Users Faster and cheaper transactions make it ideal for applications requiring high speed and low cost such as gaming social platforms and the metaverse
For Developers A scalable platform that supports decentralized applications dApps without the limitations of the base layer Low gas fees also make it accessible for smaller transactions and micropaymentsProjects on opBNB
Already popular dApps like PancakeSwap have deployed on opBNB leveraging its low fees and high speed Other projects such as Thena and KiloEx are also building on opBNB contributing to a growing ecosystem This adoption is crucial for any layer 2 solution as it demonstrates real-world use cases and attracts more developers and usersRecent Developments
opBNB has proven its resilience by handling surges in transaction activity For instance it processed up to 4000 TPS during peak times and maintained an average of 2000 transactions per minute The Core Development Team at BNB Chain stated opBNBs processing of over 23 million transactions in a single day underscores its scalability and efficiency distinguishing it in the blockchain domainFuture Plans
Looking ahead opBNB plans to implement
Account Abstraction For more flexible and user-friendly wallet interactions
Integration with BNB Greenfield For enhanced data availability
Decentralized Sequencer Mechanism To improve security and fairness in block production
These developments will further solidify opBNBs position as a leading layer 2 solutionHow to Use opBNB
To start using opBNB
Connect your wallet for example MetaMask to the opBNB network
Interact with dApps built on opBNB or deploy your own smart contracts
For developers detailed guides are available in the opBNB documentationConclusion
opBNB represents a significant step forward for Binance and the broader blockchain industry By providing a scalable and affordable layer 2 solution it paves the way for mass adoption of Web3 applications bringing us closer to a future where billions of users can seamlessly interact with decentralized technologies As opBNB continues to evolve and attract more projects it will play a crucial role in shaping the next generation of blockchain applicationsDiscussion
What do you think after learning about opBNB Share your thoughts in the comments below##DEFİ #SmartContracts. $BNB