Smart contracts explainedproiecte

Estou em busca de algum desenvolvedor que consiga realizar integração com máquina de cartão smart POS, no momento tenho duas opções: Pagseguro ou Cielo. Todas as duas tem integrações, já cheguei a ler a documentação, porém a integração é por meio de SDK e realmente eu não entendo. Seria para integrar com o FlutterFlow. Então estou em busca de um desenvolvedor que consiga realizar essa integração, até mesmo no Pubdev há arquivos das duas máquinas, não sei se é o suficiente, porém pode ajudar. Aqui está a documentação das 2 plataformas para caso alguém se interesse: Pagseguro: ...

Solana Smart Contract Creation Create a Solana token contract. When a swap from sol to token happens, move an NFT from contract owners wallet to the wallet of the person who is swapping the tokens When a swap happens from token to sol, burn the previously moved NFT's from the swap wallet. Burn will be a function call on NFT contract.

We're looking for a Web3/Smart Contract Developer who has experience in developing smart contracts(ERC20) and integrate them into websites. You need to have extensive knowledge in areas, including but not limited to smart contracts, NFT, Oracle, Auction contracts, Solidity, React, API integrations(Stripe and more), etc. It's a greenfield project that you need to build everything from scratch including smart contract, web platform. We also expect you to contribute to wring the white paper from a technical view point. We need you to sync up with us frequently in an Agile approach, so prefer someone who had worked in team environments and is a fast communicator. Please apply with your portfolio with similar projects(auction NFT, real ...

I'm looking for a skilled blockchain developer to innovatively use smart contracts for a critical function in healthcare transactions: managing access control and permissions involving Electronic Health Records (EHRs). For a system as sensitive as healthcare, ensuring data security and privacy is crucial. Key Responsibilities: - Develop Smart Contracts to regulate access to EHRs - Ensure security and privacy of healthcare transactions Ideal Skills and Experience: - Proven experience in Blockchain technology, particularly with smart contracts - Understanding of healthcare data, specifically Electronic Health Records (EHRs) - Familiarity with data access control and permissions management in healthcare settings.

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...requiring the coin to be backed by a mixed asset distribution of fiat currency, cryptocurrencies, and commodities. - Stablecoin Asset Backing: My desired asset allocation is specific, requiring a blend of 50% fiat currency (USD), 30% commodities (Gold), and the remaining 20% a mixture of various cryptocurrencies. Ideal Skills And Experience: - Extensive experience in creating and deploying smart contracts on the Ethereum blockchain. - In-depth understanding of stablecoin mechanisms and asset-backed cryptocurrencies. - Knowledge of asset tokenization, especially with mixed assets. - Familiarity with legal and financial regulations surrounding the issuance of stablecoins. - Strong communication skills to effectively collaborate on this project. Your proposal would be app...

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I am in need of a skilled developer to assist with a data-reading process from contactless Desfire smart cards. Specifically, this will be used for access control, requiring expertise in basic encryption and the ability to immediately process data instead of storing it. Ideal Skills and Experience: • Deep understanding of data reading from Desfire smart cards • Experience with basic encryption techniques • Knowledge of immediate data processing methods • Background in developing effective access control systems. What we need I would like to use your reading process in our window app project. developer must produce a class that has facility to read all data from Desfire smart card. we can provide the structure how we store the data inside. Reader ...

Hi! This will be consistent work in the future if all goes well. I’m a laidback employer who will provide you with fun work. And in exchange I’m looking for the most affordable & highly rated freelancer who is...explain in the video below because the small DETAILS matter so that we don’t waste time on unqualified leads, and so we don’t overlook other usernames we can sell them. I’d recommend you start watching now if your rating is high and rate$ is low :) Because I’ll be definitely contacting you. Also I’ll know if you didn’t watch the whole thing. I work smart. ? That said, I respect if you don’t want to risk a half hour before I contact you. So once I message you please watch the full video then so we can begin. Talk...

...features and developing smart contracts that govern the webapp. **What I Need:** Seeking an experienced freelance Solana Blockchain Developer to integrate Solana blockchain technology and a custom token into our existing web application. This project aims to implement a pay-per-use model utilizing our governance token to enhance user interaction and service delivery within the app. Essentially instead of using traditional stripe to get membership or credits users will be able to log in via. phantom/metamask wallet and use the governance tokens as credits for generation. Project Scope: - Wallet Integration: Implement wallet connectivity allowing users to seamlessly connect their Solana wallets, manage tokens, and interact with the application's features. - Smar...

I am seeking a skilled developer to create a comprehensive trading bot that is specifically designed for integration with Coinbase and Kraken cryptocurrency exchanges. This bot will play a crucial role in enhancing my trading efficiencies by leveraging advanced algorithms and implementing specified trading strategies. **Key Requirements:** - Compatibility with both Coinbase and Kraken. - Implement the following trading strategies: - Moving Averages - RSI (Relative Strength Index) - MACD (Moving Average Convergence Divergence) **Ideal Skills and Experience:** - Proficiency in programming languages relevant to API integration and bot development (e.g., Python, JavaScript). - Previous experience in developing trading bots, with a focus on cryptocurrency markets. - Strong understa...

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I’m looking to have a mobile app developed for both iOS and Android platforms. The core features of the app should be similar to my existing application. The app i want to copy and rename is a free app that is on itunes already called 'Smart Glazier' I need the new app to do everything it does and also a couple of small text additions. The project needs to be completed as soon as possible. Therefore, the ideal candidate should have a track record of delivering projects in quick turnaround times. Extensive experience in iOS and Android app development is a must, plus the ability to efficiently implement these core features. expecting precise work with a keen focus on time management from the freelancers. Let's work together and bring this app to life quickly...

As a stakeholder in a cryptocurrency project, I am in need of an expert with a combination of Python, JavaScript, and S...Python - JavaScript - Solidity for the creation of an all-inclusive Crypto Decentralized Exchange (DEX). 3. Implement the following features: - Trading pairs - Order book - Trading charts 4. Ensure heightened security through: - Implementation of two-factor authentication - Implementation of encryption protocols for user data Previous experience in smart contract development and a comprehensive understanding of cryptographic algorithms is highly regarded. Having a proactive approach towards security risks in DEX development is a must. Your professionalism and exceptional coding standards will ensure the success of thi...

I'm looking to develop a comprehensive Smart Church system that will innovate how our congregation engages with our church's activities and sermons. This system will serve as a bridge between traditional worship practices and contemporary technological solutions, enhancing the spiritual journey of our members. Key Features: - Attendance Tracking: Utilize both QR code scanning and manual check-in methods to accurately record attendance. This will help us understand participation patterns and improve our events and services. - Sermon Management: A dynamic platform where sermons can be uploaded as audio files, transcribed for accessibility, and organized into playlists for easy navigation. This will cater to various preferences, enabling members to listen to, read, and refle...

I'm seeking an experienced writer specialized in crafting compelling capability statements, particularly focused on securing government contracts within the technology sector. My aim is to develop a document that not only highlights our expertise but does so through detailed project descriptions, demonstrating our ability to meet the demanding needs of government projects. **Requirements:** - The capability statement must present our technology firm as a leading contender for government contracts. - It should incorporate detailed descriptions of past projects, emphasizing our problem-solving capabilities, innovative solutions, and the successful outcomes achieved. - The writer must be able to synthesize technical information into engaging, easy-to-understand content th...

...should: - Explain the concept of upsampling and its significance - Elucidate circumstances that necessitate the use of upsampling - Present a high-level conceptual approach to utilizing upsampling on a dataset - Discuss the pros and cons of upsampling - Achieve a grade of A+ in our tool, Clearscope The article targets general readers, hence complex jargon should be minimal and clearly explained. Despite being largely textual, incorporating relevant diagrams or case examples where possible to aid understanding would be advantageous. The final piece should be comprehensible yet captivating, turning a potentially intensive topic into an intriguing read. I look forward to seeing your bids and working with the best writer that can deliver quality content in a simplified...

...credit providers, regulators, and security. 5. **Tokenomics:** - Clear explanation of token issuance, burning, expiration, and usage. - Transparent fee structure: Token holders receive returns; platform retains a percentage. 6. **Platform Management:** - Token issuance, management, and returns handled through smart contracts. - Token holders can choose and review investment pools. 7. **Blockchain Selection:** - Utilize a suitable blockchain for its established smart contract capabilities and wide adoption in DeFi. 8. **Exchange Listing:** - List tokens on reputable exchanges for liquidity and accessibility. 9. **Listing Process:** - Engage in the listing process on chosen exchanges, meeting their criteria and requirements. 10. **Token Trad...

...growing needs. With a focus on enhancing our property management and sales processes, the ideal candidate will play a crucial role in driving our success. Here's what I'm looking for: **Core Responsibilities:** --Coordinating listings, including arranging for cleaning, staging, photography, and videography. --Sending out a mailing list twice a week. -Organizing client information. -Drafting contracts and agreements. -Assisting with the preparation of PowerPoint presentations for offline seminars. -Managing marketing tasks, specifically focusing on Google My Business. - Undertake active client communication, ensuring all inquiries and follow-ups are handled promptly and professionally. - Execute effective email campaigns to nurture leads and maintain engagement with our...

I'm in need of a skilled blockchain developer with an understanding of smart contract development, particularly for decentralized application (dApp) build-outs. Key Skills and Experience: - Proven proficiency in dApp Development on the Binance Smart Chain platform. - Knowledge of Non-fungible token (NFT) development. Project Requirements: - Development of a dApp on the Binance Smart Chain platform. - Incorporate the functionality of NFT into our dApp. Exemplary candidates will demonstrate a strong portfolio of previous dApp development, in addition to understanding and working knowledge of NFTs. Looking forward to a successful collaboration.

...development. - Open to developers of any experience level, from juniors just starting out to seasoned seniors: just tell me honestly about your real experience background. - A solid understanding of NFTs and their functionality within the Ethereum ecosystem. ### Responsibilities: - Working on various aspects of blockchain development across multiple projects. - Developing, testing, and deploying smart contracts. - Creating user interfaces for NFT interactions. - Ensuring the security and efficiency of blockchain applications. As we cater to a diverse set of clients, adaptability and the ability to work on different projects simultaneously will be key. If you're passionate about blockchain technology and have the skills in JavaScript and Ethereum-like projects, I&#...

Hello All, I am looking for help with WordPress website modifications. The website is already developed, and the content is good. The only thing is we need to make some modifications. I have explained exactly what modifications are needed in the attached video. I am looking for a budget-friendly solution and someone who can work with me via meetings while making the changes, and who is willing to work on an least hourly basis. Thank you :)

Seeking an adept freelancer to bring a pioneering project to life. The focus is on utilizing Orthogonal Frequency Division Multiplexing (OFDM) signals within the realm of frequency-selective metasurfaces to achieve an innovative localization solution. Despite the project’s nascent stage, the vision is clear: to develop a powerful, yet efficient methodology for user localization through meticulous equation modeling and Matlab coding. **Ideal Skills and Experience:** - Proficiency in MATLAB and Simulink - Strong background in signal processing and OFDM - Experience in metasurface design and modeling - Prior work involving localization algorithms and techniques - Solid mathematical foundation, particularly in equation modeling - Creative problem-solving and critic...

Introduction We are seeking a skilled and experienced Umbraco developer to join our team for continuous collaboration on various projects. The ideal candidate should have a strong background in web development with a focus on building and maintaining high-quality, scalable websites using the Umbraco C...effectively in a team environment. Ability to manage multiple projects and meet tight deadlines. A bachelor's degree in computer science, information technology, or a related field is preferred. Working Conditions This is a remote position with flexible working hours, requiring 30-40h per week. Regular meetings and check-ins will be conducted remotely via video conferencing. Project-based contracts with the possibility for long-term collaboration based on performance and...

As an aspiring trading strategist, I'm on the hunt for a seasoned developer who can bring my vision of a streamlined trade copying website to life. I envisage a platform that not only flaunts a minimalist aesthetic but also seamlessly integrates with WordPress to provide the following key features: - **Automated Trade Execution:** Capability to replic...trade execution. - Efficient in integrating alert systems for instant notifications. - Strong portfolio showcasing relevant work and client satisfaction. Please reach out if you're adept at transforming complex requirements into user-centric solutions and are keen on crafting a stellar, performance-oriented trading aid. Your input will be the backbone of a system that empowers traders to make smart, timely moves in the d...

...requirement is to allow users to create a batch of buy and sell orders on Decentralized Exchanges, such as Uniswap and Pancakeswap. Your responsibilities will be: - Creating a well-structured frontend with a competent user interface. - Allowing functionality for users to set distinct trading parameters. Expertise required: - Proficiency in blockchain development, particularly with Binance Smart Chain. - Solid understanding of market making trading strategies. - Experience in developing user-friendly frontend interfaces. - Familiarity with Decentralized Exchanges like Uniswap and Pancakeswap. Priority will be given to those who demonstrate a keen understanding of the project, and who can deliver a solution in a timely manner. An example to understand the expectations: Us...

As a business, our aim is to increase brand awareness, brand reputation and trust, community engagement/ brand engagement and generate leads among parents, and expats in Qatar via Facebook and Instagram. Therefore: - We are looking for an expert who can create a social media strategy for Facebook and Instagram for the upcoming 3 months with proper SMART goals and KPI to track.

...basic layout complemented by essential furniture pieces. - Craft the model to embody a precise and professional look, suitable for presentation. The project: There are 8 garages on a site that are being converted into (small) homes. The garages may be increased by 1 meter. Each garage has a double bed (mattress) in the 1 meter elevation. The houses must be laid out economically, with plenty of smart storage spaces. The site will have a cozy communal terrace with a roof, where you can have a barbecue. There must also be provision for parking cars. The site must also contain greenery (Mediterranean garden). Ideal Skills: - Proficiency in SketchUp software. - Strong grasp of architectural design principles. - Ability to produce clean, presentation-quality models. - Experience with...

I'm developing an interactive app and require a skilled freelancer to integrate live data functionality with sensor technology. Here’s what I need: - Incorporate a motion sensor that communicates with my app to distinguish between a hit or a miss in real-time. - Program a light indicator to remain lit for a specific duration upon registering a hit. - Configure the same light to flash a different color when a miss is detected. - Design both hardware and software elements to ensure seamless interaction between the app and the sensor/light system. Ideal Skills and Experience: - Proficient in app development with live data integration - Experience in hardware-software interfacing - Knowledgeable in motion sensor technology - Familiar with light indicator programming - Strong probl...

I'm seeking an expert to bring my sensor-focused electronic device from concept to reality. My project centers on creating a system that excels in sensing and data collection. I am looking for a partner in both the design and eventual manufacturing phases. Here’s what I need: SKILLS AND EXPERIENCE NEEDED: - Proficient in circuit design and PCB layout. - Experience with prototype development for testing concepts. - Knowledgeable in sensor technology and data collection systems. - Capable of transitioning designs from prototype to manufacturing-ready models. - Understanding of manufacturing processes for electronic devices is a plus. RESPONSIBILITIES: - Develop a comprehensive circuit and PCB layout according to specifications. - Work on the prototype to ensure functionality, re...

Create a failover mechanism in cloudflare which is suitable for shared hosting servers. When one server goes down, cloudflare should be able to switch automatically to the next server. The mechanisnm need to be tested. The basic functionalities need to be explained.

I n...know an intelligent website scraper to ask for help when needed (Casual unless you make your own role). This is not crazy technical - it's basic, but I would like you to be able to think! It is infinitely more useful that you are smart, can manage data sets, and want to own solutions so I don't have to explain every tiny detail and can let you just do... I have a task now which involves scraping a post on my site, then doing 301/404 checks, then working to expand data by pulling from sits as you see need (Of course I have list already). The more logical and smart you are in understanding how to solve problems the more I can see ways to use you. If you can do data manipulation then there is more fun! NB: You genuinely will be treated as an adult and can sh...

...non-compete and confidentiality clauses to safeguard proprietary information and prevent conflict of interest - Provide a general overview of job responsibilities and duties without excessive detailing Ideal Candidate: - Experienced in Guatemalan labor law - Proficient in legal writing in Spanish - Ability to articulate complex legal concepts clearly and concisely - Prior experience creating contracts with non-compete and confidentiality clauses Project Scope: - One complete employment contract Your expertise in legal drafting can contribute significantly to my business by ensuring we approach this employment arrangement with the professional attention it demands. Your proposal should reflect an understanding of Guatemalan law and the ability to deliver within a specified time...

Necesito leer información de sensores de TUYA smart life, específicamente de temperatura y enviar correos ante cambios de temperaturas, tendremos 30 sensores instalados, podría usarse a Python como servidor de datos, o como lector de información

"I'm seeking a talented developer to build an OTT app specifically for Smart TVs. The core feature needed is a function that enables users to set up individualized routines composed of sequential steps. This functionality should not limit users to predefined parameters, but instead should empower users to create completely customizable routines. Ideal candidates for this project would have: - Proficient understanding of OTT app development, specifically for Smart TVs - Proven ability to create apps with customizable features - Able to provide a Buy Content sub program feature - Experience in creating user-friendly and intuitive interfaces. - Must provide for testing on Roku platform

I'm envisioning a thoughtfully designed room that fully utilizes the available space while incorporating a modern and minimalistic aesthetic. I need professional assistance to bring this vision to life, ensuring a comfortable work environment for two people. - **Essential Furniture**: - Two individual desks suited to the room's dimensions. - Smart storage solutions like floating shelves, tailored to our organizational needs. - **Design Aesthetic**: - A sleek, refined approach with clean lines. - A color palette focusing on beige or cream tones, complemented by striking contrasts to add character. - **Ideal Freelancer Skills**: - Proven interior design experience, especially within modern minimalistic spaces. - Expertise in ergonomic and space-efficient furni...

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I need a creative name for my social media/marketing agency. I focus on brand strategy, social media growth and video content as well as ads and email marketing. I need a smart witty name. Keywords I like: media, social, studio, creative, unconventional My name is Sarah so we might use in name Names I like: Savanah Case media, not about marketing, barelydigital, socialstudio I want a fresh fun name and make sure it's not taken on instagram.

I am looking for a blockchain expert with a deep understanding of Solana platform and Ethereum’s ERC-20 token standards. The work requires you to audit an advanced smart contract, which incorporates external calls and complex functions. -Ideal Candidate: Ideally, you are an individual who has previously worked on similar projects, immersed in the crypto space, with a strong track record of successfully audited contracts. -Requirements: Although there are no rigid requirements that need to be followed for the contract, having knowledge and experience with ERC-20 token standards would be a plus. -Objectives: The primary objective is to ensure that the contract has robust security and does not have any vulnerabilities. Given the complexity of my contract, attention to ...

...requirement is to allow users to create a batch of buy and sell orders on Decentralized Exchanges, such as Uniswap and Pancakeswap. Your responsibilities will be: - Creating a well-structured frontend with a competent user interface. - Allowing functionality for users to set distinct trading parameters. Expertise required: - Proficiency in blockchain development, particularly with Binance Smart Chain. - Solid understanding of market making trading strategies. - Experience in developing user-friendly frontend interfaces. - Familiarity with Decentralized Exchanges like Uniswap and Pancakeswap. Priority will be given to those who demonstrate a keen understanding of the project, and who can deliver a solution in a timely manner. An example to understand the expectations: Us...

...Blockchain technology, with prior experience in IDM system development. " IDM system based on ZKP and Blockchain Expertise Needed Seeking an expert blockchain developer to build an Identity Management (IDM) system. my focus is on incorporating Zero-Knowledge Proof (ZKP) to ensure maximum security and privacy. Skills and Experience Required: - Proven experience with blockchain technology and smart contracts. - Expertise in implementing Zero-Knowledge Proofs. - Knowledge in secure transaction protocols. - Strong understanding of user authentication protocols and data encryption. Project Needs: - The project is based on Polygon ID : - The system has 3 types of users (Issuer, Holder, Verifier) - The system allow issuer to issue holder's credential on blockcha...

I'm looking for a highly experienced project manager and business analyst who can effectively steer a team comprising of designers, web developers and QA engineers. Your primary responsibilities will be: - Designing WordPress & Elementor websites from scratch - Implementing smart and efficient navigations - Ensuring responsive designs for all end devices (phone, tablet, desktop) - Ensuring high technical quality, with strict adherence to CSS, HTML, and Elementor best practices - Generating dynamic forms based on specific client needs - Creating good data models using custom fields & posts - managing teams via Issue tracker - your stakeholders are highly experienced tech guys and also highly experienced in developing full solutions, so you require to have also a high le...

I'm seeking an experienced mobile app developer to create an application that functions as a remote control for my amplifier via Bluetooth. Here's what I require: - **Compatibility:** The app must work flawlessly on both iOS and Android devices. - **Functionality:** - Input source selection with editable names - Volume adjustment capabilities (up and down) - Mute function - Power on/off toggle - **Connection:** Use of Bluetooth technology to communicate with the amplifier's RS232 interface. **Ideal Candidate Skills:** - Proficient in iOS and Android app development - Experience with Bluetooth connectivity in mobile apps - Knowledge of RS232 interface protocol - UI/UX design experience for intuitive app interfaces - Ability to test for compatibility across mult...

...integration of an SPL token. Critical skills and experience for this project would include: - Profound knowledge of Solana Network, - Proficiency in developing Smart Contracts, and - Familiarity with betting systems in crypto Dapps. The primary features of the Dapp will be: - A Coin Flip game with a reliable betting system, - Customizable fees and win/loss ratios, - Integration of a custom SPL token, and - Compatibility with the Solana network. The Coin Flip game, forming the core of the Dapp, should have a fixed fee per transaction betting system. This will necessitate strong random number generation mechanisms and solid smart contract integration. Exciting opportunities await a blockchain developer with the right mix of skills and experience to realise this ...

I need a skilled developer to integrate Zabbix with our IP camera surveillance system and enable WhatsApp alerts. You'll be setting up Zabbix from scratch and configuring it to meet our monitoring needs. **Requirements:** - Install and configure Zabbix on our system. - Enable real-time monitoring of our IP camera system. - Set up alert notifications to be sent via WhatsApp API. - ...with Zabbix and IP surveillance systems. - Proficient in setting up alert mechanisms through WhatsApp. - Capable of system data analysis and report generation. **Objectives:** - Ensure seamless surveillance monitoring. - Quick alert notifications for security breaches. - Comprehensive data analysis for informed decision-making. Looking forward to an expert who can enhance our security through smart...

...project, I'm seeking assistance in developing and training models for extracting specific data from a variety of documents - particularly contracts, resumes, and expense bills. Required Outcomes: * Establishing data models that can accurately identify and extract names, dates, amounts and other detailed information from the given documents. * Creating effective datasets for optimizing model performance. Desired Experience: * Knowledge in data extraction and machine learning models. * Proficiency in handling both structured and unstructured documents. * Exceptional attention to detail to ensure comprehensive extraction from complex documents like contracts and resumes. Note: The project will specifically require the extraction of candidate details from resumes s...

...sort out a pressing issue on my existing project. Here's the breakdown of what I need: - **Integration**: Seamlessly add a feature to an ongoing C++ project to parse JSON array values. - **Previous Work**: You'll build upon a foundation where names and values parsing is already implemented. - **Complexity Handling**: Although I skipped the hierarchy question, I value a coder who could suggest a smart approach to nested arrays if necessary. - **Timeline**: Time is ticking, and I need this done yesterday! Ideal skills and experience should include: - Proficiency in C++ (familiarity with Visual Studio 2022 preview). - Experience with JSON parsing libraries in C++. - Ability to write clean, maintainable code quickly. - Good problem-solving skills to figure out the best wa...

I'm looking for an expert to enhance the performan...Kotlin, or Groovy (Spring Boot's native languages) - Experienced in API development, specifically for performance optimization - Familiarity with techniques to reduce API response time - Expertise in implementing advanced caching mechanisms - Skilled in developing optimized database queries for Spring Boot applications Project Goals: - Improve the performance of existing RESTful APIs - Implement a smart request-handling system - Achieve significant reductions in response time - Incorporate caching and optimized queries If you have a proven track record in API performance tuning and are comfortable working with Spring Boot, I'd love to hear from you. Please provide examples of past projects where you successfully ...

Seeking an expert blockchain developer to build an Identity Management (IDM) system. my focus is on incorporating Zero-Knowledge Proof (ZKP) to ensure maximum security and privacy. Skills and Experience Required: - Proven experience with blockchain technology and smart contracts. - Expertise in implementing Zero-Knowledge Proofs. - Knowledge in secure transaction protocols. - Strong understanding of user authentication protocols and data encryption. Project Needs: - The project is based on Polygon ID : - The system has 3 types of users (Issuer, Holder, Verifier) - The system allow issuer to issue holder's credential on blockchain. - The holder can manage his credential and create proofs for the verifier. - The verifier can verify the proof. Application Requirement...