🌐 Evolution of the Web
| Generation | Era | Characteristics | Examples |
|---|
| Web 1.0 | 1990s-2000s | Read-only, static pages | GeoCities, early Yahoo |
| Web 2.0 | 2000s-Present | Read-write, social, interactive | Facebook, YouTube, Twitter |
| Web 3.0 | Emerging | Read-write-own, decentralized | Ethereum, IPFS, decentralized social |
🔧 Web3 Technology Stack
┌──────────────────────────────────────┐
│ USER INTERFACE │
│ (dApps, Wallets, Browsers) │
├──────────────────────────────────────┤
│ APPLICATION LAYER │
│ (DeFi, NFTs, DAOs, Gaming) │
├──────────────────────────────────────┤
│ MIDDLEWARE LAYER │
│ (Oracles, Indexers, Identity) │
│ Chainlink, The Graph, ENS │
├──────────────────────────────────────┤
│ PROTOCOL LAYER │
│ (Smart Contract Platforms) │
│ Ethereum, Solana, Polygon │
├──────────────────────────────────────┤
│ NETWORK LAYER │
│ (Consensus, P2P Communication) │
├──────────────────────────────────────┤
│ INFRASTRUCTURE LAYER │
│ (Node Providers, Storage) │
│ Infura, Alchemy, IPFS, Arweave │
└──────────────────────────────────────┘
🏛️ DAOs (Decentralized Autonomous Organizations)
DAOs are organizations governed by smart contracts and community voting.
How DAOs Work:
- Members hold governance tokens
- Proposals are submitted for community review
- Token holders vote on proposals
- Approved proposals are executed automatically
- Treasury is managed transparently on-chain
Notable DAOs:
| DAO | Purpose | Treasury | Token |
|---|
| MakerDAO | Stablecoin governance | $8B+ | MKR |
| Uniswap | DEX governance | $3B+ | UNI |
| Aave | Lending governance | $500M+ | AAVE |
| Lido | Liquid staking governance | $15B+ staked | LDO |
| Arbitrum | L2 governance | $3B+ | ARB |
| ENS | Domain name governance | $1B+ | ENS |
| Optimism | L2 governance | $2B+ | OP |
| ConstitutionDAO | Attempted to buy US Constitution | N/A | PEOPLE |
| Nouns | Generative art & public goods | $50M+ | NOUNS |
🆔 Decentralized Identity (DID)
| Solution | What It Does | Blockchain |
|---|
| ENS | .eth domain names | Ethereum |
| Lens Protocol | Decentralized social graph | Polygon |
| Farcaster | Decentralized social network | Ethereum/Optimism |
| Worldcoin | Proof of personhood (iris scan) | Ethereum |
| Gitcoin Passport | Reputation scoring | Ethereum |
| Soulbound Tokens | Non-transferable credentials | Various |
| Ceramic Network | Decentralized data streams | Multi-chain |
| SpruceID | Self-sovereign identity | Multi-chain |
📦 Decentralized Storage
| Platform | How It Works | Token | Use Case |
|---|
| IPFS | Content-addressed P2P storage | N/A (protocol) | Web hosting, file sharing |
| Filecoin | Incentivized IPFS storage | FIL | Long-term data storage |
| Arweave | Permanent storage (pay once) | AR | Permanent data archival |
| Storj | Encrypted distributed storage | STORJ | Cloud storage alternative |
| Sia | Decentralized cloud storage | SC | Encrypted file storage
|
