✅ Cryptographic Verification

Proof of Key

Prove Ownership. Stay Private.

Use cryptographic signatures to prove you control an address without revealing your private key. The foundation of Web3 authentication.

🔐 How It Works

App generates a unique message (nonce) for you to sign

Your wallet signs the message with your private key (never leaves your device)

App recovers the signer address from the signature — if it matches, you're verified

🔑

Passwordless authentication using your wallet.

🪪

Prove you own an ENS name for social profiles.

🎫

Prove you hold NFTs or tokens for access.

📜

Create verifiable statements tied to your identity.

POST /api/auth/siwe/verify
{ "message": "...", "signature": "0x..." }

→ { "verified": true, "address": "0x...", "ens": "nick.eth" }

⚠️ Disclaimer: Never sign messages you don't understand. Malicious sites can craft messages that authorize transactions. Always verify content.