Company ZK proof challenge
Ask for a private company proof.
Send a challenge for a zero-knowledge proof that a recipient belonged to the expected Google Workspace domain when Google issued their sign-in token. The recipient proves locally and their email stays private.
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Which organization?
Enter a Google Workspace domain; configured domains appear as suggestions. The invitation lasts 24 hours before it is claimed and can be forwarded. The proof checks hosted-domain membership and Google’s email_verified claim at token issuance. Other email providers are unsupported.
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