JoyShare — An AI-Driven Decentralized Social Platform for Content Sharing with Blockchain
Constructive Content · AI Content Analysis · On-Chain Data Integrity
Last updated: May 2026
Abstract
JoyShare is an AI-driven, decentralized social platform on Polygon Amoy designed to surface positive, constructive content while guaranteeing data integrity for every post. A FastAPI AI service analyses every submission for toxicity and quality, and ranks the feed so high-quality voices reach further. Every accepted post is hashed and registered on-chain in ContentRegistry with a full edit history — the original and every revision are tamper-proof and independently verifiable. Users sign all token operations themselves through a Privy embedded wallet (created with one Gmail sign-in), so creators truly own their content, their wallet, and their JOY rewards. V2.2 adds fixed-term staking with an arbitrage-free APY ladder, network-wide search, and a refined mobile experience as JoyShare prepares for public launch.
The Problem
JoyShare is developed to address several core limitations commonly observed in mainstream social media ecosystems:
- •Engagement-driven recommendation systems. Algorithms optimized for maximum user time and interaction frequently amplify polarizing, sensational, or emotionally charged content over constructive, high-value contributions. While this drives short-term engagement, it contributes to echo chambers, reduced content quality, and creator pressure to prioritize virality over substance.
- •Absence of verifiable data integrity and provenance. Centralized platforms retain full control over user-generated content, allowing modification, deletion, or removal without cryptographic proof of originality or an immutable record accessible to creators.
- •Custodial management of creator rewards. Earnings are held in platform-controlled accounts, exposing creators to policy changes, platform fees, sudden program adjustments, and potential loss of funds in cases of account suspension or platform instability.
- •Persistent usability and adoption barriers in decentralized alternatives. Although solutions like Lens Protocol, Farcaster, and Bluesky have made meaningful UX improvements, many Web3 platforms still present cognitive and technical hurdles (wallet management, gas fees, multi-chain complexity) that limit mainstream adoption beyond crypto-native users.
Our Solution
JoyShare addresses these problems through six tightly-integrated pillars:
🤖 AI Content Analysis
A FastAPI AI service scores every post for toxicity and quality, and ranks the feed so positive, constructive voices surface first. Every decision is logged in ai_moderation_log for review.
🌱 Constructive Community
Reward design and AI ranking favour helpful, original contributions. JOY accrues to creators who add value — not to engagement-bait or low-effort content.
🔗 On-Chain Data Integrity
Every post stores its IPFS content hash in ContentRegistry with a full version chain. Originals and edits are tamper-proof — verifiable on Polygonscan independently of JoyShare.
✍️ User-Signed Tokens
Redeem, tip, stake, premium and withdraw are all signed by the user's embedded wallet. JoyShare never custodies user JOY.
📧 Frictionless Onboarding
Privy creates a self-custody embedded wallet from a single Google sign-in — no seed phrase, no extension, no manual gas top-up.
🌐 Portable & Verifiable
Content hashes, edit histories and JOY balances live on Polygon — independently verifiable by any explorer or third-party tool, even if the JoyShare front-end goes offline.
JOY Token Economics
Supply
Hard cap: 100,000,000 JOY — minted once at deploy. No further minting, ever.
Token Utility
- • Redeem off-chain points for on-chain JOY
- • Tip other creators directly wallet-to-wallet (95/5 split with 5% burn)
- • Stake JOY for rewards from the treasury-funded pool
- • Buy PLUS or PRO premium (50% treasury, 50% burn)
- • Withdraw to a linked external wallet (e.g. MetaMask)
Earning Points
Premium multiplies every earning action — 1.5× on Plus, 2× on Pro.
Conversion
Flat linear rate enforced on-chain: 50 points = 1 JOY. Calling redeemPoints() burns the user's point balance and transfers JOY directly to their embedded wallet from the redemption reserve. No cooldowns, no tiers, no manual approval.
Token Flow — User-Signed Model
All major token operations are signed by the user's embedded wallet and emit detailed events, fully auditable on Polygonscan.
| Operation | Signer | Flow |
|---|---|---|
| Redeem Points | Embedded wallet | Reserve → user |
| Tip | Embedded wallet | Sender → receiver (95/5 burn) |
| Stake | Embedded wallet | User → JoyStake |
| Buy Premium | Embedded wallet | User → JoyPremium (50/50) |
| Withdraw | Embedded wallet | User → external address |
Fixed-Term Staking (V3)
V3 replaces continuous-emission staking with fixed-term positions. Each position locks the principal for a chosen term and pays a reward computed at stake time; the APY can't drift mid-term. The ladder is designed to be arbitrage-free against chained shorter locks — longer locks pay disproportionately more per day, so splitting one 180-day stake into 12 consecutive 15-day stakes produces strictly less reward.
| Lock | APY | Reward on 1,000 JOY |
|---|---|---|
| 15 days | 5% | ~2.05 JOY |
| 30 days | 10% | ~8.22 JOY |
| 90 days | 20% | ~49.32 JOY |
| 180 days | 35% | ~172.60 JOY |
- • Rewards are paid from the 20M JOY treasury-funded pool; the contract tracks reservedReward so a stake reverts rather than over-promising.
- • Up to 20 concurrent positions per user — you can ladder different terms.
- • Early exit forfeits the entire reward and returns principal only; the forfeited reward flows back into the pool's free capacity.
- • The tier schedule can be updated for future stakes — open positions keep their original APY snapshot.
Posts & Edit History
- • Each new post registers an original content hash in ContentRegistry.
- • Editing a post calls addVersion(), appending a new hash linked to the original.
- • The UI shows an Edited badge and a timeline of every previous version with Polygonscan links.
- • Author-only mutations are enforced on-chain — only the original author can append a new version, and prior hashes can never be rewritten or deleted.
NFT Badge System
Newcomer
Reach Level 1
Contributor
Reach Level 5
Leader
Reach Level 10
Master
Reach Level 25
Legend
Reach Level 50
Technology Stack
Blockchain
- • Polygon Amoy (chainId 80002)
- • Solidity 0.8.20 / Hardhat
- • ERC-20 JOY (100M hard cap)
- • ERC-721 Badge NFTs
Frontend
- • Next.js 14 (App Router)
- • TypeScript (strict)
- • Ethers.js v6
- • Tailwind CSS
Auth & Wallet
- • Privy (Gmail → embedded wallet)
- • MetaMask (withdrawals only)
- • Zustand + TanStack Query v5
Backend & Storage
- • Supabase (PostgreSQL + RLS)
- • IPFS via Pinata
- • Python FastAPI AI service
- • Token-indexer edge function
Roadmap
Phase 1 — V1 Foundation ✅
- • Initial contracts, points, badges
- • Vault-based custodial flow
- • Core social features
Phase 2 — V2 User-Signed Tokens ✅
- • 100M hard-cap JoyToken
- • User-signed redeem / tip / stake / premium / withdraw
- • On-chain post edit history
- • Follow graph & direct messaging
Phase 3 — V2.2 Discovery & Mobile UX (Q2 2026) ✅
- • V3 fixed-term staking with arbitrage-free APY ladder
- • Network-wide search for users and posts
- • Video autoplay-on-scroll, clickable avatars, premium badge on profile
- • Mobile-first navigation drawer and full vi/en localization
Phase 4 — Public Web Launch (Q3 2026) 🔄
- • Production deploy to a dedicated joyshare.io domain (Vercel + custom DNS, HTTPS, www redirect)
- • SEO-ready landing page, OpenGraph and Twitter cards for shared posts
- • Public beta on Polygon Amoy with onboarding tour and faucet flow
- • Status page, error tracking and basic uptime monitoring
Phase 5 — Native Mobile App (Q4 2026) 🔄
- • Capacitor-based iOS and Android builds wrapping the web app
- • Native push notifications for tips, follows and replies
- • Camera and gallery integration for one-tap posting
- • Submission to Apple App Store and Google Play
Team
JoyShare is a solo project — designed, built, and operated by a single developer. Every line of code, every contract, and every product decision sits with one person.
Tiino Nguyen
Founder · Full-stack & Smart Contract Engineer
Sole creator of JoyShare — responsible for product, frontend (Next.js), backend (Supabase), Solidity contracts, AI moderation service, and the entire deploy pipeline. Ships features end-to-end and operates the platform single-handedly.
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