Cardano-Based Multi-Outcome Predicition Platform
€250-750 EUR
Paguhet në dorëzim
AI said it best:
Core Idea: A Cardano Prediction Market
Users can place bets on a question or event (e.g., “Which AI model will be the best by 2025?” or “Will BTC hit 90k or 100k first?”).
Multiple possible outcomes, each with a “Yes” or “No” betting option.
A small fee (e.g., 1 cent) is added to each bet and collected by the admin.
On-Chain Logic (Plutus/Haskell)
The MarketDatum stores outcomes, an end time, and market status (OPEN, CANCELED, SETTLED).
Redeemer actions include PlaceBet, Settle, CancelMarket, and ClaimWinnings.
Once the market is settled by the admin or an oracle, winners claim their funds via ClaimWinnings.
Off-Chain Architecture & Database
A backend (Node.js/TypeScript) tracks on-chain events (e.g., via Blockfrost or a Cardano node) and updates a local SQL database:
markets (basic info: question, status, start/end times),
market_outcomes (all possible answers, each with “Yes/No”),
bets (tracks each user’s bet amount, fee, claim/refund status).
This allows fast queries and a convenient admin UI without scanning the blockchain every time.
Wallet Integration (CIP-30)
To enable easy interaction with Cardano-based wallets via browser:
Wallets mentioned could include Minswap (if it supports CIP-30), Vespr, Yoroi, OKX, etc. (Note: Some of these might not be typical CIP-30 wallets, but the general approach remains the same.)
A library like cardano-dapp-js (or a similar approach from Minswap’s code) provides a “Wallet Picker” component for connecting with various wallets.
Structure & Components
Frontend (React/TypeScript): Pages for listing markets, placing bets, admin controls (settle/cancel).
Contracts (Plutus): The validator script ensuring correct bet logic, payouts, refunds, and fees.
Backend (Node.js): Maintains off-chain data, provides REST/GraphQL endpoints, orchestrates transaction building if needed (e.g., batch transactions or “Scooper” logic).
Reference to Minswap Code
Minswap’s open-source repos can serve as examples for CIP-30 integration, transaction building, and off-chain “Scooper” design.
Review the frontend (React) code to see how they handle wallet connections and on-chain interactions.
Potential Lending Idea
The same approach (connecting wallets, using CIP-30, building transactions) can be adapted for a lending scenario (e.g., deposit 100 ADA, repay 110, third party covers difference, etc.).
However, that requires separate lending-specific Plutus contracts; the wallet-connection flow remains similar.
Key Takeaways
Multi-Outcome markets: Each outcome can have “Yes/No.”
Fees: A small fee on each bet can go to the admin or a fee UTXO.
Admin Flexibility: Admin can settle, cancel, or change details if desired.
Scalable Design: Off-chain DB for fast lookups and a Plutus contract for fund security.
Wallet Picker: Use CIP-30 or a compatible system for Minswap, Vespr, Yoroi, OKX wallets, etc.
In short, the project is a Cardano-based prediction market (or potentially other DeFi functionalities) combining Plutus smart contracts, a Node.js/TypeScript backend, and a React frontend with CIP-30 wallet integration.
ID Projekti: #38940987
Rreth projektit
141 profesionistë freelancer dërguan një ofertë mesatare prej €488 për këtë punë
Hi there I propose to develop a Cardano Prediction Market platform where users can place bets on various questions or events with multiple outcomes. The platform will utilize Plutus sm Më shumë
Hi, Warm greetings! After reading and analyzing the job description, I am confident I will handle this project as efficiently as you require. I have 10+ years of experience in Website and Mobile app development with e Më shumë
Thank you for considering us for the development of your Cardano-based multi-outcome prediction platform. With our expertise in blockchain technology and predictive analytics, we are excited about the opportunity to wo Më shumë
Hello! I’d be delighted to help bring your Cardano-based prediction market to life. Leveraging my expertise in Plutus smart contracts, Node.js/TypeScript backends, and React frontends, I can deliver a scalable platfor Më shumë
Hello, I’m excited about your project to build a Cardano-based prediction market. With my experience in blockchain development, specifically with Cardano and Plutus/Haskell, I’m confident I can deliver a secure, scala Më shumë
Dear Wolfoden, I am excited to apply for this project. At BytesBlitzz, we specialize in designing exceptional and extensive websites and mobile applications using Figma and Adobe XD and then using modern technology sta Më shumë
Hi there, I’ve carefully checked your Requirement "Cardano-Based Multi-Outcome Predicition Platform" and I would be happy to assist you on this project. I know you have several tempting proposals here, but I guara Më shumë
Hello, Wolfoden. I read your job brief regarding Cardano-Based Multi-Outcome Predicition Platform which requires PHP, JavaScript, SQL, MySQL, Node.js skillset. Let's collaborate on a project that excites your audienc Më shumë
I am excited to help you develop a Cardano-based multi-outcome prediction platform with advanced features like Plutus smart contracts and wallet integration. We specialize in custom web design and development, and we a Më shumë
Hello there, we are experts and a team of developers and designers. Please, send me a message to discuss the work and finish in no time. Thanks Ashish Kumar.
As an experienced Full-Stack Developer, my skills align perfectly with the requirements for your Cardano-based Multi-Outcome Prediction Platform. Combining JavaScript proficiency, Node.js knowledge and MySQL capabiliti Më shumë
Dear Wolfoden, I am excited about the opportunity to collaborate on this project and am committed to ensuring your complete satisfaction with the final outcome. Our team consists of experienced professionals who Më shumë
Hello, Wolfoden. I’m excited about the opportunity to bring your Cardano-based prediction market to life. With extensive experience in blockchain development and DeFi applications, I can deliver a secure and efficient Më shumë
Hi, Could you share if you have any specific design preferences or branding guidelines for the prediction market platform? Additionally, are there any particular features or functionalities you'd like to prioritize Më shumë
Hello Wolfoden, I am keen to help you with your project "Cardano-Based Multi-Outcome Predicition Platform" with my skills. I possess a rich and diverse portfolio that demonstrates my skills and achievements, and I wo Më shumë
Hello Dear! Good Day! Hope you are doing fine. This is Toriqul Islam . I am an expert "Web Developer" with 10+ years of working experience in PHP, HTML5, CSS3, JavaScript, jQuery, Bootstrap, MySql and different Frame Më shumë
