Decentralized, anonymous and incentivized AI powered collaboration for ideas, stories, and solutions
Prize Pool
Thaink Tank is an onchain platform for collaborative idea development, where contributions are anonymous and encrypted using Lit Protocol actions initially inspired by old social games «сadavre exquis» and «bouts-rimés». Participants add to discussions without seeing the full history, ensuring fresh perspectives. Each contribution is evaluated by AI before acceptance, determining its impact and influencing the participant’s share of rewards. While participation is public, individual inputs remain private. Fees from minting an ERC-1155 token and accessing AI-generated summaries via gated prompting are collected in a dedicated contract and claimable by contributors based on their assessed contributions.
The main mechanism is the following:
The evaluation is based on grading its relevance, novelty, depth, clarity and impact from 0 to 10 and producing a resulting weighted score.
Thaink Tank addresses several problems related to collaborative ideation, knowledge-sharing, and incentivization in decentralized environments:
Bias & Idea Contamination – Traditional brainstorming can be influenced by groupthink or dominant voices. By keeping contributions anonymous and restricting visibility to prior inputs only, Thaink Tank ensures fresh, independent thinking.
Intellectual Property & Attribution – Contributors often don't get credit or compensation for their ideas in open discussions. This platform secures inputs onchain, fairly distributing rewards based on AI-evaluated impact.
Lack of Incentives in Open Collaboration – Many idea-sharing platforms rely on goodwill, with no direct compensation for valuable input. Thaink Tank introduces a transparent, automated reward system, aligning incentives for participation.
Overload of Unstructured Information – Open discussions generate large volumes of text, making it hard to extract value. AI-powered summaries condense contributions into actionable insights, accessible only to those who pay and distribute fees to contributors.
Privacy & Idea Security – Many online collaboration spaces are either too open or locked behind centralized platforms. Thaink Tank ensures privacy with Lit Protocol encryption while keeping participation verifiable and decentralized.
Overall, the app creates a permissionless, incentive-aligned space for structured, high-quality, and anonymous idea development.
The main challenge was to grasp Lit Protocol in such a short amount of time as it's quite a complex system of terms, primitives and techniques. I really loved digging it but i wish i had more time to implement all features i planned. Building an AI agent which is evaluating users input and providing a meaningful insights from the collaboratively arranged knowledge was also quite a tough task, but i'm really proud of the results :)
Frontend: React 18 with TypeScript, using Vite as the build tool Smart Contracts: Solidity (Thaink.sol, Tank.sol) Blockchain: Base Network integration via Wagmi 2.x Privacy Layer: Lit Protocol v7 for encrypted contributions AI Integration: Custom AI agent based on Coinbase AgentKit for contribution evaluation UI Components: Radix UI primitives with Tailwind CSS for styling
Key Technical Features Privacy-First Architecture Implements Lit Protocol for client-side encryption of contributions Anonymous participation while maintaining on-chain verifiability Encrypted storage right in the smart contracts with controlled access mechanisms
AI Evaluation System Custom AI agent (thainky.ts) for real-time contribution assessment Automated scoring based on relevance, novelty, and impact Structured digest generation with AI-powered summarization
Blockchain Integration Smart contract-based tokenized (ERC1155 with proxied contract for data and access management for each of the token) store and reward distribution system On-chain metadata Automated input evaluation via Lit Actions based on AI-evaluated impact scores Base network deployment for scalable and cost-effective operations Privy.io integration for seamless web3 authentication