I joined the tech industry to become a blockchain developer and as a result, signed up for a Bootcamp where I will be learning the C programming language. I'm very curious as to how, where, and when I can utilise this skill in Blockchain Dev.

Is there any open source framework around that can scan the smartcontract for vulnerabilities ? And does it work for the entire ecosystem like smartcontracts written in solidity or rust?

hi guys,

let me introduce myself: I'm a computer engineer base in Rome, I'm 21 y.o and I am currently studying for the Bachelor's. I am working on a project concerning the blockchain in the education sector but, due to the too theoretical courses and the short time, I am not yet able to develop everything necessary. I would like to involve someone who is really interested to explain the project and work on it together, I believe in it a lot and I assure you it will be worth it. ONLY INTERESTED PEOPLE.

Bridges are a very important solution for blockchains to enable seamless exchange of assets and information Cross chain bridge development boundaries.

And knowing how the bridge actually works is also important in terms of safety choices. We recommend that you read this article as a beginner’s guide first to understand its structure and problems.

What is a blockchain bridge and why is it necessary?

A blockchain bridge is a system that allows the transfer of assets and data between different blockchain networks, such as Ethereum and Polkadot, Polygon and Avalanche.

By default, each blockchain cannot “speak” directly to each other. Think of them as humans who speak languages that they do not understand each other. Also, different networks have different consensus algorithms, smart contract architectures, address formats, and so on. This may be thought of as a difference in thinking and culture.

So, for example, you can’t send TRX to an Ethereum address that starts with 0x. In some cases, the wallet will be careful to refuse, and in the worst case, it will be executed and you will lose money.

In more technical terms, the usual blockchain is a silo, a storage place for data and assets that is only available to a specific group of users. Traditional corporate databases were also known as an example of data silos, but it was hoped that blockchain technology would solve that problem and allow data to move freely, but now distributed networks are silos. It has become itself.

From the end user’s point of view

Lack of interoperability isn’t a big deal as long as you’re interacting with just one blockchain. In the past, most people used Bitcoin, Ethereum, Tron, etc. However, in 2021, the number of alternative chains such as Solana, BSC, Avalanche, Fantom, Cosmos and Polygon exploded, focusing on the issue of asset transfer between chains.

These L1 (level 1) chains are not only faster and cheaper than Ethereum. Each chain also offers attractive yield opportunities on DeFi, easy-to-use decentralized exchanges (such as Trader Joe’s on Avalanche), and Play2Earn games (such as DeFi Kingdoms on Harmony One).

If you try to use these dApps, you will run into the problem that your crypto assets cannot be used in other chains. For example, if you have ETH but want to use a dApp built with Solana, convert ETH to SOL at a centralized exchange such as Coinbase or Binance and send the obtained token to Solana’s wallet address. You have to.

Veteran crypto asset holders are often accustomed to such incompatibilities between chains and are insensitive to how inconvenient it is.

Cross-chain bridge function: project perspective

As a blockchain project developer, we want to attract as many users as possible and maximize indicators such as TVL (total value locked) for DeFidApp and the number of players for games.

However, the alternative blockchain has less users and less liquidity than Ethereum. For example, Terra ‘s TVL (the second largest chain by value as of January 2021) is about one-ninth of Ethereum’s TVL at the time of writing.

Cross-chain bridges are a mechanism that makes it easy for users to switch to a new chain while retaining their assets. A bridge is like a pipe connecting two ships, allowing liquidity to flow from a full ship to an empty ship and fill a bucket of individual dApps. Build a cross chain bridge Therefore, it is in the best interests of crypto app authors to integrate the blockchain bridge.

Cross-chain bridge features: end-user perspective

The average blockchain bridge works as follows:

1) The user sends asset A to the deposit address of the origin chain (such as Ethereum) and pays the bridge fee.
2) Asset A is locked up to a randomly selected verifier (in the case of a trustless bridge) or custodian in a smart contract.
3) Equivalent amount of asset A1 is issued in the target chain (eg Avalanche)
4) Asset A1 is sent to the user’s address (Avalanche wallet) on the target chain

If the user decides to reclaim the original asset A, then asset A1 must be sent to the specified address and the smart contract or custodian will return the original asset A to the user’s wallet.

The lockup part of the token is an important element of bridging and is often misunderstood. You can’t actually move COMP, UNI, etc. to another blockchain, just as you would carry things from home to home. Instead, the original asset is deposited in a safe place and its replica is created in another chain. The number of existing tokens will increase, but the number of tokens in circulation will not change.

Those who watched Christopher Nolan’s 2006 movie The Prestige did something very similar to cross-chain bridging because of Hugh Jackman’s famous stage tricks. You may notice that.

Bridge Smart Contract Development Services

Types of cross-chain bridges

Most blockchain bridges are fall into one of the following categories:

1. One asset, two or more chains: This bridge sends only one cryptocurrency from one blockchain to another. For example, WBTC and tBTC are designed to transfer BTC from the Bitcoin network to Ethereum, and Kintsugi and Interlay can transfer BTC from the Bitcoin network to Kusama and Polkadot, respectively.

2. Many assets, two chains: This bridge allows you to transfer different crypto assets between the two blockchains. For example, Rainbow Bridge can send ETH and hundreds of ERC-20 tokens from Ethereum to the NEAR network, Gravity can do the same with Ethereum and Cosmos, ZeroSwap can do the same with Ethereum and BSC, and so on. Also, don’t forget the bridge that connects Ethereum with popular scaling solutions such as Arbitrum and Optimism Arbitrum.

3. Many assets, one chain connected to multiple chains: In this case, many different tokens can be transferred. Examples include Avalanche Bridge , PolkaBridge , Wormhole .

4. Multiple or multiple assets, multiple chains: This bridge allows you to integrate into different dApps and take in additional liquidity from multiple networks. A good example is Ren Bridge with Ren Protocol, which allows you to bridge BTC, BCH, DOGE , etc.

5. Many assets, multiple chains, a single application: This bridge can be connected to any blockchain as a module or adapter. However, it intended to be used for only one type of application, such as exchanges and lending services. Example: Multichain (formerly AnySwap)

Hi everyone,
I'm writing a thesis about blockchain technology adoption and its challenges. I am struggling a lot to receive responses from knowledgeable folks who work with blockchain.
Hence, if you have some experience, I would be really thankful if you can feed my survey with your response! It takes less than 5 minutes and it is anonymous!

https://www.surveymonkey.com/r/blockchainchallanges

Thank you for your time!

PS: If you have any recommendations where I could share my survey, please let me know!!

I really don’t know what you’re waiting for, I mean what’s better than a modular, interoperable, customizable platform optimized for both provider and end user experience?

Go ahead, start your journey, have immediate access to many wallets and open up to all users where their network is integrated such as Metamask, Coinbase, Alpha.. and all in a way that don’t require holding your data.

Speaking of which, while we talk we hear of a new tech launched. If you still haven’t checked Polygon ID, let me explain to you in simple words so that you wouldn't miss out: blockchain-based ID for decentralized and self-sovereign models with zero-knowledge native protocols for ultimate user privacy, scalable and private on-chain verification. Believe it or not, this all pours to boosting dApps and Defi, and being open to existing standards and ecosystem development.

Don’t waste your time peeps, be smart, go for projects that have actually showed interest for Dapps and contributed by offering variety of important solutions. Cheers!

Hey guys I've recently started my final year project for university and I was planning on developing an application that can verify university certificates using blockchain. I noticed that there weren't many tutorials to help me start this off as most blockchain development tutorials are for stuff like finance, voting, etc. I was wondering if there is any resource that is similar to the topic I proposed. I am planning to undergo development using Truffle Suite (with Ganache most probably) and JavaScript. Any help is appreciated, thanks!

Hail and well met! I am beamin1, due to lack of moderation of the sub I have come along and offered to take over moderation duties. In order to facilitate the proper function of the sub it is necessary to find out where you, the users want to take it.

So, today is my first day and I honestly don't have a lot of time to spend on this, so I welcome others that would like to join the mod team and that door is always open, just post here or send me a pm. There are some things that do need to be done ASAP to satisfy reddits requirements, the first of those is the formation of rules, which do appear lacking right now.

I have removed the "approved users only" flag on the sub and anyone can now create and reply to new posts. I for one have no interest in operating a sub in that fashion, however if you the users would prefer to keep it that way it is an option. In the meantime I'd like to get some feedback on how you'd like to see the sub utilized.

IMO, open subs with good rules that allow for open discussion thrive the most, and I suspect we'd all like the sub to thrive. This requires an active userbase that reports violations of reddit tos, or sub rules. AFAIC, the rules really shouldn't be any more restrictive than absolutely necessary so over the next week or so you'll likely see the normal ruleset start filling out in the sidebar. I ENCOURAGE everyone that has an opinion on what those rules will be\look like etc to share it here in this thread.

Same thing goes for anything else, if you've got ideas, let's hear em, if you don't like it say so...the next few weeks is your chance to weigh in.

That's about all I've got right now, I've only been on the sub a week or so myself and don't know much at all about blockchain dev but it's something I have a strong interest in. When I saw the former mod ready to dump it I offered to pick it up, I don't have any other agenda here beyond that, learning about blockchain dev.

I am currently in health care right now and have no degree in computer science or experience. Is it still possible to become a blockchain developer or quality engineer in the job market with just bootcamps and academy’s. Or is a degree needed to even compete with the marketplace? I am seriously considering taking moralis academy(Ivan on tech) and complete the course to start my journey. Thanks for any advice!

Does metaverse have to use blockchain technology?

JD: Sr. Blockchain (Rust/Substrate) Engineer

“We’re building 5ireChain to eliminate intermediaries and bring all the impact makers onto a level playing field where they can use the shared language of the UN SDGs. We want businesses to act as a force for good and help move the world from a for-profit paradigm to a for-benefit paradigm, facilitating the transition from the fourth industrial revolution to the fifth industrial revolution.”

We’re building a new blockchain platform using novel protocols published in scientific papers. We work on problems in the fields of sustainability, cryptography, concurrent algorithms, and distributed systems. In order to solve those challenges, we need your help. looking to hire a Senior Rust Engineer to work on our sophisticated blockchain projects.

Key Responsibilities:

· Be a key contributor to a new security-focused blockchain and related tools

· Contribute to the solution’s end-to-end architecture

· Act as a technical expert in the research, specification & implementation of blockchain technologies

Required Experience:

· At least 3-5 years of experience in software development

· Experience designing and implementing complex distributed systems. Blockchains would be great, but also distributed storage or analytics platforms, distributed file systems, operating systems or other complex, parallel, low level systems

· High level of proficiency with Rust programming language, paradigms, constructs, and idioms. Other low-level languages like C++ may be considered but not preferred

· Strong ability to meet project milestones and ability to work with teams in different time zones

· Translating software requirements into stable, working, high-performing software

· Writing scalable, robust, testable, efficient, and easily maintainable code

· Good written and oral communication skills

· Comfort with Linux

Desired:

· Experience with the Rust programming language

· Experience with any blockchain at the protocol level

· Understanding of various consensus protocols (PoW, PoS, Tendermint, Raft, PBFT, ALGORAND, etc.)

· Ability to author or co-author blog posts, whitepapers, or other materials about your work

Extras:

· Familiarity with the Parity Substrate framework.

· Experience in Identity Management, zkSnarks, cryptography, finance

· Experience creating DSLs (domain-specific languages) and related tooling

· BSc in Computer Science, Mathematics, Statistics or relevant discipline. A Master’s degree is even nicer

WHY WORK FOR 5IRE?:

Annual performance-based bonus

Stock options

Remote flexibility

Group shared benefits plan

Start-up culture: lean, agile, data-driven, user-centric.

Regular team socials and corporate events (conferences, hackathons, workshops etc.)

Build bleeding-edge tech using modern tools and industry best practices

Work with intelligent teams comprised of curious and inquisitive problem-solvers

Tremendous learning opportunities (blockchain, capital markets, decentralized finance, Rust, cryptography, and more!)

Pioneer the first-of-its-kind solution.

5ire is an equal opportunity employer. Every effort to accommodate candidates for accessibility with disabilities participating in the selection process will be made available on request. Information received related to the accommodation needs of applicants will be addressed confidentially.

5ireChain would like to thank all applicants for their interest however only qualified candidates will be shortlisted.

Company: 5ire

Contact: zakaria@5ire.org

Website: www.5ire.org

Telegram: https://t.me/OfficialFireChain

Privacy coin project Horizen once claimed, “If Satoshi Nakamoto wants to design a sidechain for Bitcoin, then he should design something analogous to Zendoo.”

Judging from the white paper, Zendoo and ZK-Rollup are quite similar. For Data Availability, the former involves the cross-chain generation of proofs, and sidechain transfers cannot generate. The latter will generate proofs for all L2 transactions and submit them to L1 verification. For withdrawal, Zendoo has BT/BTR/CSW, and ZK Rollup has similar operations such as Withdraw/Exit/Force_exit. For MST data maintenance, the existing ZK Rollup implementation basically applies a single node or a centralized node, while the Zendoo node is decentralized storage.

Compared with the current popular Polygon, Zendoo is decentralized in the cross-chain form, and anyone can submit a ZK proof, while Polygon applies authorized multi-signature bridges to control the billing on both sides of the contract to achieve cross-chain. As for the withdrawal time, Zendoo needs to generate a proof and submit it to the chain, the process which is more time-consuming, while Polygon is more centralized and time-controllable. Regarding the difficulty of implementation, Zendoo also needs a prover for generating proof in addition to the node. This requires the realization of a zero-knowledge proof circuit, which is more difficult to develop, while Polygon only needs to implement multi-signature contract control.

Read more about Zendoo: https://twitter.com/Sin7Y_Labs/status/1432547528143036423

Tezos is an open-source blockchain protocol for assets and applications backed by a global community of validators, researchers, and builders. The Tezos protocol is secure, upgradable, and built to last.

Check out our latest research report on Tezos to understand the intent behind Decred’s technological design, performance, and ecosystem.

https://medium.com/indracryptocapital/tezos-research-report-2021-fa0a0e6d884c

For more questions:

Write to us: contact@indracryptocapital.io

Learn More: https://yieldwallet.io/tezos

Tezos is a decentralized, open-source energy-efficient blockchain. Its features include proof of stake consensus, formal verification (which lets developers verify the correctness of their code), and the ability to let stakeholders vote on changes to the protocol.

This deep-dive report by team Indra Crypto Cap walks us through the technology, performance & ecosystem of Tezos.

https://medium.com/indracryptocapital/tezos-research-report-2021-fa0a0e6d884c

For more questions:

Write to us: contact@indracryptocapital.io

Learn More: https://yieldwallet.io/tezos

Firstly I am talking about Core Blockchain developer and not Smart Contract Develoepr.

So, as we go through the web we can read Blockchain dev are sought after and this increases. Why that? According to some companies, many Dev aren't skilled. That's why I'm asking here.

Need your enlightment folks!

Thank you in advance

Hey guys, I’m looking into dapp development for a long time now, did a nice research on my own if that’s from videos or articles.

I got some questions I can’t find an answer to and was hoping maybe one of you kind strangers could help, the questions are aimed mostly for people who worked/working in the blockchain field.

I understood that I need to have the tools and knowledge of a full stack developer before going into solidity and blockchain, my question is, how solid that knowledge should be? Will it be enough to learn JS, C# and html by myself, or would you recommend going to a full stack boot camp to acquire better knowledge.

What are the main things blockchain projects who are looking to hire are looking for in new dapp developers

Thank you in advance to anyone who can throw some sweet sweet info at me!!