THE FUTURE IS BLOCKCHAIN

and we speak the same language

We offer the following services

ICO Development and marketing solutions

Supply chain solutions

Crypto wallets

Hyperledger Fabric Development

Smart contracts

Private blockchain networks

Decentralized autonomous organizations (DAOs)

Blockchain-based market platforms

Asset tokenization platforms

Cryptocurrency Development

Transform Your Business with Secure and Safe Transactions Features

Blockchain development services help create decentralized
blockchain networks that provide increased
traceability and security of data and transactions.
A software development company with 20 years of
experience, DueVerde offers end-to-end blockchain
application development services to help product
companies and non-IT enterprises build reliable
blockchain solutions.

Secure

Blockchain based transactions are more secure than other record-keeping systems. Transactions need to be agreed
upon before they are recorded. Once this is done, transactions are encrypted and linked to the previous one.

Speedy And Efficient

If you deal in a complex supply chain, you know how hard it is to trace a product back to where it came from. When you use blockchain to record exchanges of goods, you get an audit trail that shows the origins of a product and every stop it made on its way.

Traceability

If you deal in a complex supply chain, you know how hard it is to trace a product back to where it came from. When you are using a blockchain platform to record exchanges of goods, you get an audit trail that shows the origins of a product and every stop it made on its way.

Transparency

Blockchain allows all network participants to share the same documentation as opposed to individual copies. You can only update the shared version through consensus, meaning everyone must agree on it. The slightest change would require the alteration of all subsequent records, making it transparent.

Demo App – Sending / Recieving Payments

SwissHash fun interactive payment gateway demo

We are offering you the opportunity to test a demo application which is a Ethereum transfer portal called Swisshash that uses Metamask Wallet to send and confirm transactions and allow you to add an animated GIF automatically from
gify website by just writing a keyword (the gifs are chosen automatically)
as well as being able to attach a personal message.

Simple and Elgant

Personalized and Funny

Both Simple Applications can be implemented on the real Ethereum Chain very easily. The smart contracts behind them can also be redeployed fast and secure making any changes a breeze.

The first application is a Ethereum transfer portal called Swisshash that uses Metamask Wallet to send and confirm transactions and allow you to add an animated GIF automatically from gify website by just writing a keyword (the gifs are chosen automatically) as well as being able to attach a personal message.

This is the smartcontract code written in solidity:

The front-end is coded in React with NODEJS as the server.

Testing the first App:

1. First step: access the portal
via www.swisshash.ro

2. If no Metamask wallet is connected, you will be prompted to install it or the chrome app.

3. If the app was installed correctly and all steps have been fullfilled you should be able to access the app interface:

4. To install metamask you have to do these steps:
Go to the chrome webstore and install metamask extension

Set up the password then revel and keep somwhere safe the recovery phrase:

After you get your account ready enable test networks and select Goerli testnet:

After you get your account ready enable test networks and select Goerli testnet:

To initiate a new transcaction, please follow these steps:

1. First step: access the porttal via www.swisshash.ro and press the Connect Wallet button.

1. Insert the address where you want to send crypto

2. Set the amount of ETH
to send

3. Set the keyword in order to generate funny gif

2. Metamask will start automatically, if the account is logged in successfully you will see this

4. set the desired
message and press
send now

5. confirm transaction

6. confirm
gas fees and transaction

7. the whole process
takes about 20 sec due
to network activity

Testing the second App

1. First step: access the portal via www.mi3.swisshash.ro

The best representation of a Dapp (Decentralized application) witch represents the backbone of every NFT shop.
NFT stands for non-fungible token and is a financial security consisting of digital data stored in a blockchain. More often we see this NFTs in forms of different assets like images, Gifs or even game character if we talk about play2earn.

The platform I made binds the indispensable CRUD style application with the NFT minting and mining in the Goerli Blockchain Network.

To access the aplication we used Metamask chrome extension. To set up your own wallet to test de aplication follow the steps:

2. Now we have to authorize the transaction with the Metamask. Wait until the reponse of the Metamask, it may take up to 30 seconds due to Goerli network high usage.

NFT – Marketplace

These are code extracts of the fron-end, smart contract and back-end for the app

App Front-End

App Back-End

SmartContract Code