User Verification System

Objective

To ensure that only genuine Cult NFT holders can interact with DAO logic and participate in governance decisions.

Logic

Each user has an SPL token account that holds their NFTs. The program checks if this account holds at least one Cult NFT. If so, the user is verified and granted access to governance features.

Mathematical Model

Let B(u) = NFT balance of user u
Then: Verified(u) ⇔ B(u) ≥ 1

Anchor Code

pub fn verify_user(ctx: Context<VerifyUser>) -> Result<()> {
    let nft_account = &ctx.accounts.nft_account;
    require!(nft_account.amount >= 1, CustomError::NotVerified);
    Ok(())
}

Security Notes

• Cannot be bypassed or faked; relies directly on on-chain NFT ownership.

• If the NFT is transferred, verification status is automatically lost.

• Uses Anchor’s built-in constraints to protect access to critical functions.