Add zk-Trivia Game vApp proposal (Gaming category)

submissions/gaming/deniginsb.md

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+# vApp Submission: zk-Trivia Game
+
+## Verification
+```yaml
+github_username: "deniginsb"
+discord_id: "622368860787572746"
+timestamp: "2025-09-22"
+```
+
+## Developer
+ - Name: Deni Ardiansyah
+ - GitHub: @deniginsb
+ - Discord: deniajaa10
+ - Experience: 2+ years experience in Web3 and coding. Built blockchain games, wallet analytics, and AI-powered apps with focus on zk and on-chain interactivity.
+
+## Project
+
+### Name & Category
+ - Project: zk-Trivia Game
+ - Category: gaming
+
+### Description
+A quiz/trivia game where players answer random questions under time pressure. Each answer is verified with zk-proofs via Soundness Layer, ensuring scores cannot be faked. Leaderboards show only attested results, making the game fair and trustless.
+
+### SL Integration
+
+Use Soundness CLI to generate proof for each correct answer. Every correct response creates an attestation stored in WALRUS. Leaderboard queries WALRUS + Soundness to verify validity before showing results. Prevents score manipulation and enables transparent competitions.
+
+## Technical
+
+### Architecture
+Frontend Web App: shows trivia questions, timer, and submits answers. Backend API: verifies answers, calls Soundness CLI for proof. Soundness Layer: generates attestation of valid answers. Storage: WALRUS stores proof + attested score. Leaderboard UI: fetches verified scores to display rankings.
+
+### Stack
+ - Frontend: React + Tailwind (minimalist dark theme with neon accents)
+ - Backend: Node.js + Express
+  Blockchain: Soundness Layer (zk proofs + attestations)
+ - Storage: WALRUS decentralized storage
+
+### Features
+
+ - Trivia questions with timer (10–20s per question).
+ - Score submission with zkProof verification.
+ - Attestation badge for valid scores.
+ - Global leaderboard (only verified scores count).
+ - Optional multiplayer rounds or tournaments.
+
+## Timeline
+
+### PoC (2-4 weeks)
+ - [ ] Setup trivia question set + simple frontend
+ - [ ] Integrate Soundness CLI for proof per correct answer
+ - [ ] WALRUS integration for storing attestations
+ + [ ] Basic leaderboard display
+
+### MVP (4-8 weeks)
+ - [ ] Full leaderboard with filters & badges
+ - [ ] Randomized question sets + time-limited rounds
+ - [ ] Polished dark-themed UI with animations
+ - [ ] Multi-round tournaments + user testing
+
+## Innovation
+Most trivia apps rely on centralized servers that can be manipulated. zk-Trivia Game is unique because every correct answer is proven with zkProofs and attested on Soundness Layer, ensuring fairness and transparency. This demonstrates zk in a simple, fun, and community-friendly context.
+
+## Contact
+Preferred updates via GitHub PRs and Soundness Discord. Contact via Discord: deniajaa10 or GitHub: @deniginsb.
+
+Checklist before submitting:
+ * [x] All fields completed
+ * [x] GitHub username matches PR author
+ * [x] SL integration explained
+ * [x] Timeline is realistic