PostHub

Problem Statement

PostHubis a Web2-style consumer content app powered by Web3 infrastructure. It is designed for people to sharereal, trustworthy, and media-rich guidesto solve everyday life problems — like buying SIM cards abroad, using public transport in a foreign country, finding non-touristy restaurants, or completing everyday tasks that aren’t easily explained by search engines or AI.Unlike AI or search engines that generate generic, spam-prone, or sometimes false results, PostHub puts real humans back at the center of everyday knowledge sharing. Users create posts withmarkdown-formatted text, images, and videos, explaining solutions in a clear and engaging way. Each post can beliked, starred, commented on, and tippedusing crypto — encouraging authentic content that actually helps.To further incentivize quality posts, every week, PostHub calculates thetop 5 most liked/starred postsand randomly selects one winner usingFlow VRF (Verifiable Random Function). The winner receives a500-token reward, creating a fair and gamified ecosystem that encourages contribution.🔑 Key User Features:Helpful post creation: Markdown + media support.Likes and stars: Social proof and ranking.Crypto tipping: Send stablecoins as appreciation.Weekly rewards: One post out of top 5 wins 500 tokens.Commenting system: Includes image-based replies.POAP badges: Users can attach collectible badges to experiences.👥 Personalized User Experience:PostHub ensures that every user has acustom-tailored experiencebased on their age, gender, and country — collected optionally via Self.xyz. For example:Under 18: No adult or gambling content shown.Over 55: Interface scales up for accessibility (larger fonts).From sanctioned countries: Can browse but not send/receive gifts (crypto).Gender: Used to fine-tune content recommendations.Despite these controls, PostHub isinclusive: even if users skip customization, they can still use the platform with limited functionality.PostHub’s mission is simple:Bring back real, human-centric trust to everyday knowledge— and reward those who help others.

Solution

PostHub is architected to combine thesmooth experience of a Web2 consumer appwith theintegrity, verifiability, and incentivization of Web3. Every component is designed to feel natural to average users — even those who don’t know what blockchain is — while leveraging blockchain under the hood fortrust, traceability, and fair rewards.🔗Flow BlockchainPostHub usesFlowfor:✅On-chain metadata:Each post’s title, timestamp, user hash, and other identifiers are stored immutably on-chain.This proves authorship, prevents tampering, and enforces accountability (you can’t deny what you posted).🎰VRF (Verifiable Random Function):Weekly, the top 5 posts (based on likes and stars) are entered into a fair draw.Flow’s VRF selects one post to receive a500-token reward.Ensuresprovable fairnessin community incentives.💸Token handling:Users can sendmock stablecoins(e.g., USDC) as tips.Posts that resonate with others become income-generating content.🆔Self.xyzPostHub usesSelf.xyzto collect optional user data in averifiable yet user-friendlyway:🧒Age: Determines access to sensitive content (no 18+ material for minors).🌍Country: Users from restricted regions can browse but not send/receive crypto gifts.🚻Gender: Used to improve content recommendations (e.g., makeup vs. automotive posts).This enables12 distinct user types, each with tailored UX — yet ensuresno user is fully excluded.🔐PrivyPrivy powersauthentication and identityon PostHub:🔓Email-based loginfor Web2 users (no crypto wallet required).🪙Wallet loginfor crypto-native users.🔄Non-custodial identitythat can be verified later — you can skip identity setup and come back anytime.This ensuresseamless onboarding, whether you’re crypto-savvy or completely new.🗄️Supabase (Off-Chain Storage)PostHub usesSupabasefor:📦 Storing post content (markdown, media files)🔍 Indexing for full-text search and filtering🤖 Feeding recommendation algorithms💬 Managing comments, reactions, and notificationsPosts are stored off-chain toensure speed and cost-efficiency, while critical metadata is hashed and stored on-chain.🖥️Front-End ExperiencePostHub’s front end is built usingNext.js (React)and designed with amobile-first, creator-friendly UX:📱 Feed-based browsing, familiar to TikTok, Xiaohongshu, and Reddit users✍️ Markdown editor with media upload for easy post creation🖼️ Comments with images (replies with visual proof)🛠️ Customizable profile page (likes, stars, badges, ENS name)📩 Notification center (for POAPs, comments, tipping alerts, reward wins)Everything looks and feels like a familiar Web2 app — but trust, rewards, and accountability come from Web3.🧩 Summary: Why PostHub Matters| Feature | Purpose | | ---------------------------- | ------------------------------------------------------------ | |Posts by real people| Solves real-life problems with authentic experiences | |Custom experience (Self)| Personalizes the app by age, gender, and country | |Onboarding (Privy)| Login with email or wallet — easy for all users | |Crypto rewards (Flow)| Incentivizes quality content with weekly draws and tipping | |On-chain metadata| Proves authorship and deters disinformation | |Web2 UX, Web3 engine| Abstracts away blockchain complexity for mainstream adoption |