JoePro | An independent AI product studio

The Technology Stack

Frontend

• Next.js 15 - React with App Router
• TypeScript - Type-safe development
• Tailwind CSS - Utility-first styling
• shadcn/ui - Component library

Backend

• Firebase Auth - User authentication
• Firestore - NoSQL database
• Firebase Storage - File storage
• Next.js API Routes - Serverless

Blockchain

• Arweave - Permanent storage
• Bundlr Network - Fast uploads
• Polygon - ERC-721 NFTs
• MetaMask - Wallet integration

AI & Payments

• OpenAI GPT-4o - Vision & language
• Whisper - Audio transcription
• Qdrant - Vector database
• Stripe - Payment processing

Arweave: Permanent Storage

Arweave is a blockchain designed specifically for permanent data storage. Unlike traditional blockchains that store state, Arweave stores data permanently.

How Arweave Works

One-time payment: Pay once, store for 200+ years
Economic model: Endowment covers declining storage costs
Cost: ~$5 per GB (decreasing over time)
Immutable: Once uploaded, cannot be changed or deleted

Arweave vs Traditional Storage

Feature	Arweave	AWS S3	IPFS
Duration	200+ years	Until you stop paying	Until pinned
Cost Model	One-time	Monthly forever	Pin or pay gateway
Censorship	Resistant	Platform controlled	Gateway dependent
Verifiable	Yes (on-chain)	No	Content hash only

SmartWeave Contract Integration

Neural Salvage NFTs use Arweave's SmartWeave standard for BazAR marketplace compatibility:

// SmartWeave Contract Tags
{
  "App-Name": "SmartWeaveContract",
  "Contract-Src": "Of9pi--Gj7hCTawhgxOwbuWnFI1h24TTgO5pw8ENJNQ",
  "Init-State": { 
    "balances": { 
      "[userWallet]": 100 
    } 
  },
  "Creator": "[User's Arweave Address]",
  "Indexed-By": "ucm"
}

Polygon: Marketplace Access

While Arweave provides permanent storage, Polygon provides marketplace liquidity through the ERC-721 standard.

Why Polygon?

ERC-721 Compatible: Works with OpenSea, Rarible, LooksRare
Low Fees: ~$0.01 per transaction
Ethereum Ecosystem: Access to largest NFT market
Fast Confirmation: 2-second block times

Dual-Chain Synchronization

Every Neural Salvage NFT mint creates TWO permanent records:

Upload to Arweave

File + metadata stored permanently. Returns transaction ID.

Tag with User Wallet

Creator tag points to user's Arweave address for ownership proof.

Mint on Polygon

ERC-721 token minted with Arweave URL as tokenURI.

Transfer to User

Polygon NFT transferred to user's wallet. User now owns on both chains.

AI Analysis Pipeline

Every upload triggers a multi-stage AI analysis pipeline:

Analysis Workflow

File Upload: Firebase Storage with resumable uploads

GPT-4o Vision: Image/video captioning and description

Tag Generation: AI-suggested tags based on content

NSFW Detection: Content moderation scoring

Vector Embedding: Create semantic search embedding

Store in Qdrant: Enable natural language search

Security Architecture

Multi-Layer Protection

Rate Limiting: 5 mints/min per IP to prevent abuse
Cost Caps: $50/day platform spend limit
Wallet Security: 3-location encrypted backup (local + cloud + paper)
Firestore Rules: User data isolation and validation
HTTPS Only: All connections encrypted end-to-end

Data Backup Strategy

Firebase: Automatic daily backups to separate region
Arweave: Already permanent by design
Code: GitHub with semantic versioning
Platform Wallet: Seed phrase + encrypted JWK file

API Architecture

Neural Salvage exposes clean REST APIs for all core functionality:

Endpoint	Method	Purpose
/api/nft/mint-dual-chain	POST	Mint on Arweave + Polygon
/api/payment/create-checkout	POST	Stripe payment session
/api/nft/by-wallet	GET	Fetch user's NFTs
/api/upload/process	POST	AI analysis pipeline

Performance Optimization

Edge Caching: Static assets on Vercel Edge Network
Lazy Loading: Images load as user scrolls
Firebase Indexes: Optimized queries for gallery views
Vector Caching: Qdrant embeddings cached for 24 hours
Streaming Uploads: Large files chunked and streamed

Technology Architecture