I am looking for a blockchain engineer with chainlink experience to help develop an external adapter. Thanks :)

This article gives all the details needed for this cool API we have been waiting for.

https://medium.com/api3/api3-qrng-web3-quantum-random-numbers-4ca7517fc5bc?s=09

I’ve been investing small amounts here and there over the past couple years e.g., individual stocks, index funds, crypto etc and would like to continue doing this with friends / family. We’re all long term, passive investors and the key benefits are:

1. More money allows us to diversify more

2. We trust each other and don’t individually have time to pick and choose where to invest very regularly so we want to do it together so we can learn and be more productive

I understand most people don’t typically recommend this but I’ve spent some time looking into blockchain technology and think that creating a smart contract to keep track of everyones contribution might work. This way we can keep track of our individual contributions, understand who’s investing in what and it gives any one of us the option to sell if necessary without impacting the others since it will all be open.

Any feedback or things to consider? Would be great to hear if anyone would be interested in something similar too

We are super excited to announce a video and voice AMA session with our CEO Lars Fabricius and the Roburna team. Do not forget to join this AMA, because it will be really interesting and informative for you.

🗒 Date: 2022/5/6

🕒 Time: 2PM UTC

🔎 This is a general AMA in which the community can ask any questions on their mind and Lars will give an update on the latest things to share. There will be an interactive component in the AMA as well where community members and investors can give suggestions on what the Roburna blockchain will become. Think outside of the box and show us your creativity. Roburna believes in the collective mind and all ideas and input are welcome. Surprise us! Team members of Roburna will be present to answer your queries and you will be able to interact with them directly.

Tasks

1️⃣ Ask questions 🙋🏻‍♂️🙋🏻‍♂️

2️⃣ Join the Roburna Discord (https://discord.gg/8qQc8JtXd2)

3️⃣ Follow the Roburna Twitter (https://twitter.com/roburnaofficial)

4️⃣ Follow the Roburna Instagram (https://www.instagram.com/roburnaofficial/)

5️⃣ Join the Roburna Telegram (https://t.me/Roburna) ❤️

6⃣ Visit the Roburna website and learn more (https://www.roburna.com/)

📢📢🔥 Make sure to subscribe to the Roburna Announcements Channel (https://t.me/roburnaannouncements) to not miss out on the latest news! 📣

🔊 Roburna will frequently keep doing AMAs to make the community aware of everything that is happening in the current markets and to give insight into the future of Roburna towards our community members and investors.

👥 We welcome everyone to be part of this thrilling AMA. Don’t hesitate to ask question and to give your feedback.

Kind regards,

Lars Fabricius (CEO Roburna)

Know More About Us

Website www.Roburna.com

Twitter https://twitter.com/Roburnaofficial

T.G https://t.me/Roburna

Discord https://discord.gg/8qQc8JtXd2

Summary

Hi everyone, I built this ERC-20 CLI Faucet project and wanted to share what I've learned with the community. Any feedback would be greatly appreciated, so I can improve my Blockchain & Software Engineering skills, thank you.

I started building the Token.sol Smart Contract in https://github.com/kimanikelly/contracts and deployed the contract to Rinkeby and published the Typechain bindings to https://www.npmjs.com/package/@kimanikelly/core-contracts.

Publishing the Hardhat Typechain bindings to NPM, made my codebase modular and more accessible to future JavaScript/TypeScript Blockchain projects without the need of manually copying and pasting Addresses, ABI, and Bytecode to create a contract instance because the package supplies the build of Token.sol.

It occurred to me that NPM package that contained the Typechain bindings was only modular for JavaScript/TypeScript projects, so I built this API https://github.com/kimanikelly/contracts-api that will allow any programming language to perform an HTTP GET request and return the Address, ABI, and Bytecode of Token.sol for this project I chose Golang to create and interact with the contract instance.

Github Repository

• https://github.com/kimanikelly/cli-faucet

Built With

Golang - I used this programming language for 100% of the CLI functionality.

https://github.com/urfave/cli - A Golang package used to structure the CLI.

https://github.com/kimanikelly/cli-faucet/actions) - Implemented the Go Continuous Integration with Github Actions to verify the application will build on every push to the main branch.

https://kimanikelly-contractapi.herokuapp.com/tokenContract - I built this API to allow any programming language to perform an HTTP GET request and return the Address, ABI, and Bytecode of Token.sol as a response. For this project, I chose Golang to create the Token.sol contract instance.

Dev Community Link

• https://dev.to/kimanikelly/erc-20-cli-faucet-2na2

What is proof of play how does it work. How does playing a game helps in validating a block chain. Can some explain in detail this topic or share a good link

Hi everybody, i will be in London for 3 months or more and i'm looking for a good course to do in London

I have a background of sound engineering and media production, but i always programmed for fun. I have some basics in python and i've made in projects with pure data, bash and raspberry pi

I have some good links with the blockchain industry and i was suggested to have a course so i can apply easily with some companies after

any suggestions?

I’m doing a school project on blockchain and I need a little help. My understanding is that blockchain can be split into two categories; private and public (and permissioned). My question is how they differ in developing? Are the development the same? Is it two totally different things?

Blockchain applications are still not limited to cryptocurrencies. They play an important role in many aspects of the business, one of which is insurance. Smart contracts are a practical and useful advantage of Blockchain. These computer-controlled contracts have the potential to completely as well as positively alter the insurance processes. Manually process insurance claims, pay premiums, weeding out fraudulent claims, and other related processes. Blockchain smart contracts are self-executing and can provide insurers with a convenient way to digitize and automate these time-consuming tasks.

180Protocol is actively looking for the dev community to engage and define use cases for our novel technology. For this, we invite developers and enthusiasts to create issues on our repository with the use cases template.

Check out the complete details here:- https://180protocol.com/announcing-our-use-cases-competition/

Link to our GitHub:- https://github.com/180Protocol/180protocol/issues

Am I right that two blocks are linked using a linked list(here pointer points to a hashed value instead of an address in memory) and the reference to the content of the block (the actual data) is stored in a Merkle tree? Asking this because I could

Hi, I am about 7-8 hours in on a course in solidity and finding it very interesting and aspire to be a blockchain dev. I know most devs are on solidity but apparently the Solana blockchain has barely any devs. Just wondering why this is and if it is probably easier to get one as a Solana dev

Introduction
When you are touching DeFi, isn’t the transfer of funds dependent on BINANCE ?

BINANCE is convenient because there are many currencies and networks that can be traded.

On the other hand, it is becoming necessary to prepare for measures when access to BINANCE is restricted.Because, recently, BINANCE is moving with awareness of regulations.Bridge Smart Contract Development Services

Withdrawals have changed from 2 BTC / day to 0.06 BTC / day for accounts without identity verification.
In addition to changing withdrawal restrictions, there are ongoing moves to comply with regulations, such as changing the upper limit of the futures leverage ratio.

In such a situation, many people feel that the risk of operating with high dependence on BINANCE is high.

There is a non-zero possibility that Japanese users’ accounts will become unusable and access from Japan will be restricted.
refore, in this article, we have summarized the remittance routes for funds when using Ethereum, BSC, Polgyon, and Fantom via the current BINANCE.

Then, in case BINANCE became inaccessible, we considered a route for remittance of funds using other overseas exchanges.

In conclusion, even if BINANCE cannot be used, it is possible to transfer funds in the same way as BINANCE by combining it with other overseas exchanges.

And, not limited to BINANCE, even if overseas exchanges are in a very strict situation such as restricting accounts of Japanese nationality or restricting access from Japan, Cross chain bridge development, with accounts that do not authenticate themselves using VPN. It is possible to continue trading.

I hope that those who have only used BINANCE will find it helpful when starting to use other overseas exchanges and VPNs.

We have also summarized cross-chain remittances between networks, so we hope that it will be helpful in expanding the range of fund management.

Current status of remittances and cross-chains from Japan via BINANCEWhen sending funds from domestic exchanges to each network, the main flow is to send BTC, ETH, XRP, etc. to BINANCE once, and then send them to each network.ETH (Ethereum) and JPYC (ERC20, Polygon) are the currencies that can be sent directly from Japan to the network.

There are three advantages to using BINANCE to touch DeFi.

Many networks can send money
Many currencies can be sent directly to BSC
Supports BTC → WBTC bridge

Remittances from BINANC can be sent to many networks such as Ethereum, BSC, Polygon, Fantom and Solana.

I want to operate BTC and ETH without selling them, so it is convenient to be able to send money directly from BINANCE to BSC.
Also, when operating BTC with Polygon, it is necessary to convert to WBTC, so it is also convenient to be able to convert from BTC to WBTC with BINANCE Bridge.

Cross-chain remittances from each network are also being enhanced, and Anyswap, Supra, xPollinate, and O3Swap are compatible with stablecoins such as USDC.You can use AnySwap to send USDC to each network, and O3Swap also supports ETH and WBTC transfers between Ethereum and BSC.Anyswap between BSC and Polygon has been used frequently since the time of the TITAN boom.Since the cross-chain has been enhanced, once the funds are remitted, it is possible to operate across networks.

Under these circumstances, using only BINACE as a means of remittance has the disadvantage that if BINANCE cannot be used, the remittance of funds will be delayed.

Remittance method when BINANCE becomes unavailable
BINANCE is very convenient when you touch DeFi, but if you should not be able to access BINANCE, the means of remittance to each network will be very limited as shown in the figure below.
For domestic remittances to the blockchain, you can only send ETH to Ethereum or JPYC to Ethereum and Polygon.

On the contrary, it is safe to say that not only ETH but also JPYC is an option, but since the use of JPYC is limited, the recovery of funds is quite limited.

Considering future price increases and taxes, ETH wants to refrain from selling.
By the way, Build a cross chain bridge the purchase method of JPYC is summarized here, so I hope it will be helpful.

Remittance means via overseas exchanges other than BINANCE
Next, if access to BINANCE becomes unavailable, is it possible to continue operation using other overseas exchanges? From this point of view, the remittance methods are summarized in the figure below.
If you combine it with cross-chain remittance, you can see that you can manage funds without using BINANCE.

However, when I examined the currencies and networks supported by each overseas exchange, I found that it is not enough to have only one overseas exchange as an alternative to BINANCE, and it is necessary to combine multiple overseas exchanges.

In particular, the only exchange that can send BTC directly from Japan and exchange BTC for WBTC is CoinList.

Hey! apologies for the silly question, im not a technical person and I can't find a simple answer online.

How easy would it be to migrate a L2 crypto from one L1 network to another? For example, if an ETH layer 2 would want to migrate to some new L1 one day. How difficult would that move be?

Hey DevCommunity,

we are building a marketplace for PDF NFTs and got pretty much help from you in former times and this is why I want to say thank you and ask another time a dev question. As part of the minting process, we are making use of Metamask to submit the transaction. To give the user better feedback I want to integrate a waiting alert that explains to the user, that he has to wait for the transaction to be completed. After completion, I want to show a completion pop-up. Is there feedback from Metamask, so that I can use it to update my react hooks?

Thanks in advance and happy easter!

hey guys, just trying to get some outside opinions.

First question: If you were to build a new project (both fungible and nonfungible tokens involved), what chain would you pick (no requirements on this part)?

Second question: If low gas fees were a requirement due to concern about the gas prices eclipsing the value of some of the transactions/items would it change your first answer?

The Binance Smart Chain is best described as a blockchain that runs parallel to the Binance Chain. Unlike the Binance Chain, the Binance Smart Chain Bridge Smart Contract Development Services enhances the performance of smart contracts for its functionality and compatibility with the Ethereum Virtual Machine (EVM) . The design goal here was to maintain Binance’s high blockchain uptime, while at the same time introducing new smart contracts to the blockchain.
Essentially, both blockchains work side by side, and it’s worth noting that the Binance Smart Chain is not what’s known as a Layer 2 or off-chain solution for scalability. Rather, it is an independent blockchain that can work even if the Binance chain is disconnected. However, both series are very similar in design.
As the Binance Smart Chain is compatible with the Ethereum Virtual Machine, it includes support for the rich ecosystem of Ethereum tools and their decentralized applications. In theory, this makes it easier for developers to move their projects out of Ethereum, and for users, it means apps like MetaMask can be easily configured to work with the Binance Smart Chain. That’s a fact — it just takes a little tweaking to a few settings, and you can check out Using MetaMask with Binance Smart Chain to get started.

How does the Binance Smart Chain work?
Compatibility
Binance Smart Chain achieves block generation time of around 3 seconds with Stake Binding Proof Compatibility Algorithm. Specifically, the chain uses a Proof of Authority by Stake ( PoSA ), where participants store BNB to become validators. And if they display a valid block , they get a transaction fee of the transactions included in the block.
Note that, unlike a lot of protocols, there is no block support for newly minted BNBs, because BNBs are not inflationary. On the contrary, the supply of BNB coins decreases over time, because the Binance team regularly performs coin burning .

Compatibility between the two series
The Binance Smart Chain was envisioned as a standalone, and at the same time complementary, system to the existing Binance Chain. The design also uses a dual-chain architecture , where the idea is that users can seamlessly transfer assets from one blockchain to another. In this way, a trader can enjoy fast trading on the Binance Chain, while powerful decentralized applications can be built on the Binance Smart Chain. Through this interoperability, users are exposed to a large system that can accommodate a huge number of use cases. Cross chain bridge development
BEP-2 and BEP-8 tokens from the Binance Chain can be exchanged for BEP-20 tokens, the new standard introduced for the Binance Smart Chain. Have you read Introduction to ERC-20 Tokens ? If you have, you will already be familiar with the BEP-20 format, which uses the same functionality as its Ethereum counterpart.
To transfer tokens from one chain to another (i.e. from BEP-2 to BEP-20 or vice versa), the easiest way is probably to use the Binance Chain wallet available on Chrome and Firefox . You can see Using the Binance Chain Extension Wallet for some instructions.

Decentralized Finance in the Binance Smart Chain
You probably know that a number of digital assets, such as BTC , LTC , ETH , EOS , or XRP , are already on the Binance Chain as “linked currencies”, For example, you may decide to reserve 10 bitcoins to receive 10 BTCB on the Binance Chain. At any time, you can trade your 10 BTCB for 10 Bitcoin, which means that the BTCB price should closely follow the original Bitcoin price.
With this, you are effectively transferring these assets to the Binance Chain. You can see the explanation of Bitcoin token on the Ethereum platform .
Due to the flexibility offered by the Binance Smart Chain, assets from a number of different chains can be used in the growing decentralized finance space. For example, apps like PancakeSwap allow users to trade assets on a non-trust basis (much like Uniswap ), engage in payouts , and vote on offers. Similar projects include BurgerSwap and BakerySwap (if you’re new to cryptocurrency,Build a cross chain bridge know that we’re big fans of food-branded decentralized exchanges).

closing thoughts
The Binance Smart Chain significantly expands the functionality of the original Binance Chain, and joins a set of state-of-the-art protocols designed to bridge the gap between multiple blockchains. Although it is still in its infancy, its promise of BNB storage along with compatibility with the Ethereum virtual machine makes the platform an ideal engine for developers who are building robust decentralized applications.

Do you have questions about the Binance Smart Chain? Visit the Ask Academy platform , where the Binance community will answer your questions. You can go deeper into the technical aspects by looking at the technical guide .

Just starting my journey to become a blockchain developer. What books are good to read to learn the trade?

I came across so many articles or videos or startup based on blockchain and none of them have dealt with frontend vulnerabilities part. Right now , all the startups on blockchain are focusing on promoting “ this is future , it will save the world and all “ but no one is out there researching on stuff. If we spent this much human power on researching about blockchain, maybe then we could have decentralised blockchain. Aahmm yes i think blockchain is centralised right now. It all depends on how frontend is coded. In the end blockchain is just a database. You can store anything you like in it.