Nextrope

About the Client:

Alior Bank SA is a universal bank and the 10th largest financial group in Poland with more than 6 000 employees and over 700 mln PLN net income (2018). 

It is a highly innovative institution that implements technological solutions fast and, together with the most prominent regional insurance company, PZU runs a tech accelerator for Fintech startups (RBL_Start).   

Challenge:

Alior Bank likewise all banks in Poland are obliged to deliver to their clients' information about all applicable changes in bank terms and conditions, tariffs, and other documents in an imperishable and unalterable form, which is on paper by post. In the case of Alior bank, it is over a million paper letters annually. The bank sought a solution to digitalize the process concerning the rule of the data to be unalterable and environmental friendly at the same time. 

Key requirements: 

• Rapid delivery time;

• Service availability;

• Low cost and fast product delivery;

• System security.

Solution

Nextrope team has built and maintained an online service that publishes the transactions proceeded by Alior Bank's Smart Contracts and the methods used to execute them. That was part of a significant effort to introduce blockchain technology and Smart Contracts into Alior Bank. Now, all the document updates are available for the public and bank customers in a public ledger based on Ethereum.

Technology Stack:

Node.js, Loopback, Ethereum node, PostgreSQL database, Nginx application server, VPN + Firewall

The project covered by Forbes:
https://www.forbes.com/sites/hanktucker/2019/06/17/polish-bank-alior-use...

About the client:

PaybSwap is an ambitious London-based startup that aims to address diverse challenges within the DeFi space. PaybSwap team members are professionals experienced in blockchain and DeFi projects. 

The team builds a Cross-chain AMM bridge between Binance Smart Chain and Ethereum network, and issue its own tokens.  

Challenge:

• Technology selection and development 

Nextrope software development services bring together a custom solution and a bridge shared by Binance. The challenge is to bypass the limitations that the Binance bridge has. 

•  Interconnect ability of two blockchains 

Nextrope faces the challenge of smooth and bilateral conversions of tokens on two blockchains: Binance Smart Chain and Ethereum network.  

• Rapid Changes in the business environment 

The DeFi environment is rapidly changing, including the technologies and business requirements of the industry. That is why Nextrope developed a platform in an agile methodology that allows responsiveness to the business requirements of the Client. At the same time, Nextrope’s research team delivered consulting and business analysis services. 

Solution:

Thanks to the close cooperation with Nextrope’s research and development team, PaybSwap delivered a cryptocurrency trading platform using an Automated Market Maker model, allowing users to trade cryptocurrencies and move their tokens between two blockchains: Ethereum and Binance Smart Chain. 

The Decentralized Exchange (DEX) is fully integrated and compliant with KYC - Know Your Client regulations. 

Selected functionalities of the platform: 

• Liquidity pool: Facilitates trading in the Automated Market Model model that replaces the Order Book,   
• The custom bridge: The custom bridge connects two blockchains, allowing to manage Clients’ tokens and connect Ethereum and Binance Smart Chain,
• Smart contracts: Serve transactions performed on Binance Smart Chain.

Technology Stack: 

Node.js, React.js, PostgreSQL 

About the Client:

TCake provides its clients with the tool enabling them to create accurate trading strategies and constantly observing and controlling the positions on decentralized exchanges. With TCake, the market analysis process is faster and easier.

TCake platform provides traders convenient and clear access to minute-by-minute data on 400 currency pairs.

All currency pairs are displayed on Trading View charts. This allows Tcake users not only to create comprehensive analyses and have constant control over their purchases, but also to prepare investment strategies on PancakeSwap.

Challenges:

•  Efficiency and responsiveness of trading data
•  Managing input data presenting more than 400 crypto pairs
•  Scalability of servers
•  High transaction cost

Solution:

Nextrope team has created a platform that allows users to monitor the prices of all the tokens listed on PancakeSwap and analyze them in detail.

Users have access to real-time data that updates every minute. This was possible thanks to the effective integration of the platform with TradingView which provides graphs and token data retrieved from the GraphQL API.

The team managed to achieve low transaction costs and plan the system architecture in an optimized way.

TCake gained extreme popularity within 24 hours of its launch; TCake token was ranked 2nd in terms of growth speed on the Binance Smart Chain.

TCake analytical tool serves as a reliable platform and ran smoothly serving more than 1500 entries at a time.

Technology Stack:

Node.JS, Postgresql,TraidingsView, React.JS

About the client:

Skinwallet promotes awareness of the great value of digital goods in video games and the vast investment opportunities that follow. They create tools that allow gamers and traders to sell, buy and exchange digital goods so that they can create their characters according to their own preferences and tastes.

Challenges:

• Giving the desired rarity and uniqueness to in-game characters,
• Linking metadata to the NFT token. The most common solution is the HTTP link, however, there is a risk that it could lead to the changing the initial meaning of NFT by the server owner.

Solution:

The Nextrope team has created a sales platform that allows users to come into true ownership of unique digital goods. Gamers are able to purchase game characters in the form of NFT tokens that ensure their complete uniqueness. 

Moreover, our developers decided to use a solution based on the IPFS protocol, which would prevent any possible threat. As a result, a content identifier (CID) is additionally created for the data so that data manipulation is not possible without breaking the link. 

Technology stack:

Smart contracts: solidity + truffle, Api: typescript, loopback 4, ipfs, mocha (tests), postgresql

About the client:

FutureFund aims to make saving easier for everyone and provide stability in the token world. The team recognizes the great potential of new technological solutions and by combining them with finance creates the world's first cashback-driven investment vehicle based on blockchain technology.

Challenges:

• Personalizing the token: giving the token characteristics beyond the common ERC-20 standard,
• Enabling users to generate profits by investing tokens in an easy and fast way.

Solution:

Full tokenization from A to Z

The Nextrope team has conducted full tokenization, starting with the creation of a whitelist for users, launching a token sales platform and ending with the implementation of the stake system.

Token Growth was completely customized to meet the requirements of cleint. Nextrope developers created their own transfer logic to implement features beyond the standard. Thanks to this solution, it is possible to charge a specific amount for a given token transfer and to modify the balance on dedicated wallets.

The Nextrope team has developed a staking system that allows the user to store purchased tokens for a certain period of time in a designated wallet and generate profits in return.

Technology stack:

node.js, react.js, postgresql

About the Client:

Silver Cryptocoin B.V. is a Dutch company selling physical silver online. Their e-commerce platform is supported by tokens that prove ownership of physical silver stored by the company. 

Challenge: 

The company aimed to allow the investors to purchase and store physical silver and expand investment possibilities for buyers. 

Key requirements: 

• Convenient user experience for investors

• Hedging company's financial assets framework

• EU legality in cryptocurrencies solutions

Solution: 

Nextrope has created an e-commerce platform for token purchasing and has integrated it with an Ethereum blockchain. 

Instead of buying physical silver, an investor can purchase its digital equivalent on the Ethereum blockchain as ERC20 tokens fully backed by physical silver stored securely by the company. 

Investors can conveniently sell owned tokens on crypto exchanges or directly in a peer-to-peer way.

Nextrope gave consulting services in financial flow and algorithms within the platform. Nextrope also maintains the server and blockchain part of the platform upon SLA agreement.

Technology Stack: 

Node.js Loopback; React JS, Ethereum 

About the Client: 

Lex Secure is a law firm successfully operating on the international European market serving over 150 000 users since 2008. Lex Secure provides legal advice via an online platform within 24 hours. 

Challenge: 

With its efficient processes and the growing number of users and lawyers, Lex Secure needed a solution to enter international markets within European Union and facilitate new users and lawyers acquisition.   

Solution: 

Nextrope team has built a platform for LexCoin distribution - a token that is used to pay for online legal services offered by Lex Secure. LexCoin token is designed to encourage users to place new legal inquiries and requests via the LexSecure platform.

Nextrope works on a new blockchain and artificial intelligence-based legal advisory system which offers quick and thorough legal advice based on individual needs over many European jurisdictions.

Technology Stack: 

Node.js Loopback; React JS, React Native for iOS and Android apps, Python for AI algorithms, Ethereum