Wallets & Identity

How NETWORKCOIN.ID handles user identities and cryptographic keys.

Unified Identity Model

A single user can have multiple linked identities. Whether they sign in with email or wallet, your app receives the same stable sub (Subject ID).

Self-Custodial Wallet Auth

When users sign in with their own wallet (MetaMask, etc.):

• We never access their private keys
• Authentication uses EIP-4361 (SIWE) — a cryptographic challenge/response
• The wallet signs a message proving ownership of the address
• We verify the signature server-side and create a session

Auto-Generated Wallets

When users register via email, a Network Coin AI wallet is automatically generated for them. This gives every user a blockchain identity even if they don't have MetaMask.

Supported Chains

Wallet Address in Tokens

Request the wallet scope to receive the user's wallet address in both the ID token and UserInfo response:

{
  "sub": "550e8400-e29b-41d4-a716-446655440000",
  "wallet_address": "0x742d35Cc6634C0532925a3b844Bc9e7595f..."
}