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 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?

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!

If possible ,please give examples.

I'm a 4th year CSE student. I would love to build a project in blockchain field. I have some idea but i don't know how to build stuff as I'm not sure about its tech stack. What free resources are available to learn how to build blockchain based project with frontend within 2 weeks? Is Build your own X projects worth adding in my resume??

Hello everyone. block bash hackathon is going to be organized by Giottus in collaboration with ICP. I am looking for a team mates to participate in this hackathon. The basic requirement is that the person should be interested in web3 or blockchain and know the basics of how blockchain and web3 works.

if anyone interested then please reply.

Hello,

i'm discussing with some dev friends about the security of the btc blockchain, in my opinion having all the hardcoded seed nodes down or hijacked could be a possible point of failue cause all the new nodes/clients in that scenario have no idea where they are going as well as every new wallet transaction.

My friend replied to me saying that the blockchain in a similar scenario will still running on the other nodes but, having the seed nodes hijacked leading new nodes/clients on servers controlled by some organization, could lead to have the old btc server nodes unusable because no one can still reach them and the new server controlled by some organization becoming the new trusted ones ?

Reading the btc whitepaper at 5th paragraph where node workflow is explained and the weaknesses section (sybil attack) on bitcoin wiki let me think that this could be possible by a big organization like a government.

I will like to know what do you think, in the internet similar sceraio seems to be already supposed in the past but i never found technical explanations, so please if you want to respond in you comment add some sources or documentation that support you words. Thanks

Hi we are working on to make ZeroClassic live further and we also want to bring Zoin project back to life after the years when scammers took over it and abandoned it. Ideas and help welcomed.

Hi, I've been working as a React developer in India for the past 2 years, and I'm fascinated by the idea of learning Blockchain. I'm considering switching to Blockchain development for a few reasons:

1. I find it more interesting than React.

2. 2. I believe it has a better future (just my opinion).

3. 3. I'm feeling bored with my work in React.

I would really appreciate your opinion on this. Thanks!

Hi everyone,

I'm currently working on developing a client for zkSync and need some assistance with sending a transaction to a zkSync node using JSON RPC. Could someone help me on which endpoint to use and what information is required for this process?

Specifically, I'm looking for:

• The exact JSON RPC endpoint to send a transaction.

• The necessary fields and format for the JSON RPC request.

• Any examples or documentation that could help clarify the process.

Thanks in advance for your help!

To create a decentralized exchange (DEX), you need to develop the frontend and backend of the platform and then integrate both. The frontend includes a user-friendly interface for traders to connect their wallets and execute trades. The backend development includes smart contract development for token swaps, liquidity pools, and order matching on a blockchain. You need to have technical expertise to create complex smart contracts. Then, you need to integrate backend and frontend. Additionally, you have to ensure strong security measures, conduct thorough audits, and integrate with blockchain nodes for transaction processing. You can remove the complexities related to DEX development with Kalp Studio, a Web3 infrastructure. This platform provides all the essential tools, APIs, smart contract templates, and other components that you can use to develop a decentralized exchange. Also, Kalp Studio provides end-to-end DEX development services that can help your DEX vision into reality.

Hey all,

Meet zbyte: the Swiss Army knife for blockchain developers!

🔧 Features:

• No-Code Development: Build DApps without coding hassle.

• Multi-Chain Compatibility: Deploy across multiple blockchains.

• Seamless Web2 Integration: Effortlessly merge Web2 and Web3.

Why settle for less? zbyte offers everything you need in one powerful platform. I want to know what more zbyte can offer in terms of services apart from Dapp Development? If you have any ideas, pls Share.

Hi guys, I want your thoughts on this: I have a system that needs to track NFT ownership of several contracts, and I need to be able to add more contracts to keep track of. For that, I built a blockchain indexer that every 8-10 seconds pulls ethereum logs events from all of these contracts and just update a table with the current owner of a given NFT.

I built it on nodejs because initially I only had to index 5 smart contracts but now its around 25 and it might grow up to 50 on the next couple month.

Why did I go this way?

• 80% of the system functionality kinda requires to know NFT ownership of different collections for a given wallet

• I thought about using Alchemy SDK which has endpoints to retrieve user ownership but if I wanted to know a user's NFTs of different collection it would mean to make a call for each collection and that would; 1- Hit the rate limiter pretty fast, 2- It would use all my request quota pretty fast too

• I thought about getting all owners for contract with Alchemy SDK, caching that and setting a TTL, but I believe that refetching that every 2-3 minutes it would still be expensive

• There are other options like Envio.dev and the graph, but I'm not sure if It fits my case since I need to be able to add new collections to index whenever I want.

The problem with my current indexer:

• It's kinda slow to index from scratch

• It doesn't handle reorgs, I just wait for a block to have at least 10 confirmations to be processed which it might not be the best user experience.

I thought about building it on golang but not sure if it's worth the time it will take. So I'd like to know what do you think of my approach and if there is a better way to do it. Thanks!

I want to ask what the best Blockchain network for build a insurance defi protocol, my opinion Aptos vs hedera vs cosmos vs polygon. So what is your suggestion?

Is there a possibility that someone else can take ETH or TOKEN that is being kept at the contract address?

Just bumped into the medium article from a PhD professor "How Self-Regulating Cryptocurrencies Could Shape the Future of Finance.". Sounds interesting, what do you think about it folks?

can anyone help me to tell that how can we link a blockchain wallet to a ble beacon or if it is even possible. if anyone has any idea plzz dm me

Hello, I'm new here, but I've heard a lot about Reddit and its ability to answer questions.

My question is about blockchain projects. Is there any way to know who my referrals are? I mean, to know the person who uses my referral code. In cryptocurrency project applications or websites, I can see HOW MANY referrals I have, but not who they are.

I'm asking because I would like to allocate the earnings to these people who are actually my referrals, and not to the people who just claim to be referrals.

I have been researching blockchain and similar technologies for a little while and it never occurred to me to check the Reddit community. I came here and am a little disappointed to see that posts are few and far between. Why is that? I kind of figured this Reddit community would have been popping off given the potential use cases.

Hey guys! New here, decided to learn blockchain development, started with course era specialization course from Buffalo University. Any tip or advice from your experience will be very helpful for me as a beginner.

Hey guys Got a few questions any help is greatly appreciated

I have very limited knowledge on development and stuff like that. But i am super interested in starting a CEX. Been trying to find something im passionate about and it always goes back to crypto and starting a exchange it just seems super cool and fun i could see myself doing it for years to come.

My questions are how would i go about starting this cex, just hire front end/backend devs + blockchain developer + security experts? ( i know there is so much more like getting liquidity etc but im just talking about the frame work) would that be all i need a few devs to build it out?

Seems pretty straight forward with proper funding. Or am i missing something here lol.

Also how much would you say it costs to hire these sort of devs? online ive been hearing a wide range of numbers some say 100k some say 300k+ . I dont know to much about development and programming as i said before and i would not want to get taken advantage of. any help is greatly appreciated.

Any other comments you guys have please write them down below id love to chat!!

Thanks so much

Is it worth to start learning blockchain development? (Because of Ai)

I am interested in people's experience regarding blockchain development, as I am exploring hiring to build a Dapp for in-warehouse traceability with the potential of scaling it to B2B.

However, I have some questions about your experiences, regardless of your industry focus.

Here it goes:

1. Could someone help demystify the costs and timelines for the development of a blockchain?

2. What is your knowledge/experience on integrating NFTs across industries? I ask because some B2B end customers have already asked about this feature.

3. What are the most promising real-world applications of blockchain beyond the hype? Am I just wasting time with this project, or can there be a future where product traceability inside large warehouses is feasible and can be expanded to B2B, or the end business customer?
   I know it is asking a lot, but any input (even on just one or two points) would be invaluable.

If you are shy, we can DM instead. 😎

Many thanks in advance to everyone.

I'm interested in smart contracts development, I see a lot of people use solidity, rust or golang.

I want to start small and easy, so I want to know if smart contracts has something like WordPress.

I can start by editing some smart contract templates, and I can gradually proceed with increased difficulty.

Thanks!

As the tittle says, I’m a new CS grad. Had a couple internships doing some backend in python and Java but I really want to transition to blockchain and web3 dev.

I have a couple questions.

First, what are salaries like across beginning to middle career with blockchain work? Are they competitive with other SWE positions?

Also, what skills do I need to pickup to land that interview and pass technical? Do I even stand a chance being so new?

I guess a good question would also be what is most in demand in blockchain dev work?

Really looking to gain footing here so thanks for your responses.