Certification (ID verification)

Certifying your identity (also known as ID verification, or KYC) is an optional step for warden accounts that — along with your signal score — unlocks privileges including higher submission limits and post-judging QA comments.

C4's certification process is as follows:

1. From the account screen, a warden can choose from two KYC options: Persona, or zkPassport.

   1. You only need to verify with one of the two providers.

2. The warden's identity is verified by the selected KYC provider.

3. The KYC provider certifies the warden as having successfully completed their identity verification process.

Identity verification status can be viewed on your C4 account screen.

In the event that a certified contributor violates or is believed to have violated the Terms of Service, Code4rena reserves the right to pursue all remedies available, including removal from the platform or legal action.

Which verification option should I choose?

The choice is yours. We recommend reviewing Persona's Help Center and zkPassport's FAQ to help you choose.

How long does it take to get verified?

• Persona or zkPassport verification can usually be completed within a few minutes, assuming you have the necessary documents available.

My verification is failing; can you help?

• For tips on verifying your identity with Persona, visit Persona's Help Center.

  • One of the most common causes of failure is photo quality, so ensure that your photos are:

    • clear,

    • well-lit,

    • free of glare or reflections, and

    • clearly show your eyes.

• For tips on verifying your identity with zkPassport, visit zkPassport's FAQ.