Decentralized Identity in Web3: Your Wallet as Your Digital ID
Web3 wallets are becoming identity infrastructure. ENS names, Lens profiles, and Verifiable Credentials let you own your digital identity across the internet without platform lock-in.
Your Ethereum wallet address is already a primitive form of identity — it has a transaction history, can own tokens and NFTs, and can sign messages proving ownership. Web3 is building identity infrastructure on this foundation: human-readable names, reputation systems, and verifiable credentials.
ENS: Your Human-Readable Crypto Name
Ethereum Name Service (ENS) maps human-readable names (alice.eth) to complex wallet addresses. ENS names can also store additional identity data: email, Twitter handle, profile picture, website. Over 2.5 million ENS names are registered; they are increasingly used as primary identity across Web3 applications.
On-Chain Reputation and Credentials
- Gitcoin Passport: aggregates on-chain and off-chain identity signals for Sybil resistance
- Orange Protocol: on-chain reputation scores based on transaction history
- Verifiable Credentials: W3C standard for privacy-preserving on-chain proofs
- Soul Bound Tokens (SBTs): non-transferable tokens representing credentials, achievements, affiliations
Decentralized Social Media
- Lens Protocol: social graph owned by users, posts as NFTs, portable across apps
- Farcaster: decentralized social network; Warpcast is the dominant client
- Nostr: lightweight decentralized social protocol, used by Bitcoin community
- DeSo: purpose-built social blockchain; early but shows the potential for owned social identity