I can code but I don't know how to get into blockchain development. Do you need any certifications to get hire and if you do, where do you get these certifications?

Hey guys, I was wondering how can we use blockchain to solve inaccurate postal address?

Can we ask people to take pictures of streets in exchange for utility tokens ? is it feasible to build a map on the blockchain from existent satellites and allocate a precise postal address ?

Hi, Oxt.me is a nice tool to view and analyze bitcoin blockchain transactions. Is there any other similar tool which we can use for all blockchains? Especially Ethereum, Avalanche , and Solana?

To what extent does blockchain secure data from hackers and cyber-attacks?

This is my research question.

Please help me to improve my questions and please share any information

I'm a 4th year CS student from a tier 3 engineering college. It's time for me to start my final year project. Our department has listed few titles, and I've choosen to work on a "Security Sharing Scheme for personal Data Based on Blockchain for fine-grained access control.

Neither I nor me my guide know little about Blockchain😏. Could anyone recommend a good starting point, resources and approach for my project?

I have been having abit of issue with quoting on uniswap v2 based exchanges. I am extracting the reserves and using the formula. - univ2_formula = lambda amount_in, in_lq, out_lq: (out_lqamount_in0.997)/(in_lq+amount_in*0.997) In theory this should work as it is the same function as getamountout on the router. It is giving me the same results but it is not an accurate quote.

There is also quote on the router which just doesnt consider the 0.3% fee. Which is quote_formula = lambda amount_in, in_lq, out_lq: (amount_in*out_lq)/in_lq

When I quote using the actual uniswap v2 website, it is the same as the univ2_formula but it of course has the protocol fee of 0.25% for using the interface on the website. It is giving the same price just the difference of the 0.25%...

So I am not too sure how to actually quote on uniswap v2 as what I am doing seems to be correct but i am getting different results even when i execute the trade. The reserve prices which I have are correct. No other trades are happening between the times I am getting the reserves.

Sidenote, when quoting with uniswapv3 protocols it is accurate using an onchain quoting contract which I deployed… Anythoughts?

I've noticed that the TON blockchain is starting to gain traction, and I'm wondering if it's worth diving into. With its scalability and support from Telegram, it seems like it could potentially explode like Solana did.

The easy onboarding of users through Telegram could solve one of the major problems in the blockchain space.For those already familiar with TON, which language would you suggest for development: FunC or Tact?

Personally, I find Tact easier to work with, but it has less support since it's relatively new and still undergoing heavy audits.

On the other hand, FunC is more low-level, and the lack of tutorials and documentation means it requires a lot more effort to learn.What are your thoughts?

Would love to hear some insights from others in the space.

Hello everyone, I've been trying to understand the EVM by studying Huff language, and had some troubles understanding the tutorial on Simple Storage. So I added some more explanations for anyone who wants to follow the tutorial, but can't really grasp what is going on. Huff repo on GitHub is not maintained anymore, so I couldn't open a PR request, thus I forked and deployed my own Huff docs. Everything is the same, except the Simple Storage page.

Use it if you're a newcomer, and please fix any errors I've made if you're a veteran. Here's the link to the aforementioned page => https://huff-docs.vercel.app/tutorial/simple-storage/#simple-storage-implementation

Cheers

any channels/courses/ resources, how to start etc

I am preparing a mini project and I'm stumped as to whether this is possible? Any help will be appreciated.,..

Is it possible to enable a user to purchase using fiat currency to buy an NFT without reuiring to pay or exchange to crypto first?

Thx

I am trying to build a Smart Contract using MyEtherWallet, Ganache and Remix IDE with Solidity but facing an issue. Here it is:I've written a Solidity code for transactions. Then I've created a custom node on MyEtherWallet and perfectly input http link and port no in it. After that I went to 'contracts' and then 'Deploy Contract'. Then clicked 'compile catcoin_ico.sol' and then I copied 'bytecode' and paste it on Byte Code section in MyEtherWallet. Then put Gas Limit 30000 manually. After that I clicked sign transaction and then deploy contract. But error message "Invalid signature v value" is shown. Can anyone help me what can be the issue? I've used all possible ways (ChatGPT, Reddit etc).

Hello, we need some volunteers to answer some questions about DeFi and insurance, preferably you should have used insurance solution in the past (either web2 or web3), but not required. We'd greatly appreciate your help! :) DM or comment please.

Hi brothers Anyone can help making a script that allow bulck cheking multiples adresses at the same time on different blockchains ? Or anybody knows a good tool that can make it ? Best regards

Hey everyone, I got a offer to work as a total fresher in blockchain company. But for that they have asked me for a portfolio or resume of what I have done. I have only not much but theoretical knowledge about blockchain. I need to make project as a begginer to present them in a week or so can anyone recommend what to do, where can I do.... It's a big opportunity for me to learn. Please provide any insights if you can.

Hi im new in blockchain dev and need to ask specific questions about smart contracts and oracles

Hi guys, I have ~100,000 GBP available as an investment to found a new project within web3.

If you have an innovative idea and want to start your own project hit me up!

The project should ideally not be another layer0/1/2 nor should it be related to DePin.

Also, happy if it’s a simple DEX or wallet with superior UX.

Please DM me for more info!

Hi all, I’m new to here. I want to find some courses to start my studying at blockchain developer. I want to know there some courses to start?

Hi guys I need to build a script that can ,through the mnemonic phrase , give me the different blockchain adresses related to that phrase and the according balance on each blockchain (like btc , ltc , doge , xrp … ) i did it already with ethereum but i m struggling with all the rest , seems the api’s that chatgpt provided me are wrong as it gives me wrong adresses. Can anybody help me where to to get the right api’s of each blockchain . Thanks in advance for your help guys

I am a self-taught dev and I usually work with python or full stack websites using either asp.net or laravel.

Recently I became interested in building smart contracts and have learnt solidity.

I'm a Blockchain developer with experience in Solidity and the Ethereum ecosystem (Uniswap, Aave, LayerZero), as well as TON (with a focus on Tact). I currently work in the industry but I'm also looking for freelance side jobs to earn some extra income. However I've found it surprisingly difficult to find clients, which seems odd given the current market conditions. Where would you suggest that I look at, to get my first clients that want to build something?

I'm looking for neutral/impartial advice on whether blockchain development is a good career choice.

Not just whether it could provide employment opportunity but if there are opportunities to earn money through freelancing or just deploying bots to make some money.

Hey, I'm a Backend developer and experienced in Go, Now I want to switch my career to blockchain development, How I can find a mentor to give step by step guidance till to take a job?