In healthcare, speaking up about a colleague's performance can have real consequences. OR nurses who flag a surgeon's poor technique risk being reassigned. Surgical techs who report unprofessional behavior might face retaliation. That's why Physician Signal built Ghost Identity from the ground up — not as an afterthought, but as a core architectural principle.
The Problem with "Anonymous" Reviews
Many platforms claim to offer anonymous reviews, but their implementations often fall short. If a platform stores your email address alongside your review, a data breach or legal subpoena could expose your identity. If reviews include timestamps and department information, it's often trivial for a surgeon to narrow down who wrote a critical review.
How Ghost Identity Works
When you submit a review on Physician Signal, your identity goes through a one-way cryptographic hash. This creates a unique Ghost Hash — a string of characters that proves you're a real, verified user without revealing who you are.
Here's what makes it different:
Per-doctor hashing: Your Ghost Hash is different for every doctor you review, so even if someone discovered one hash, they couldn't link your reviews across different physicians
One-way function: The hash cannot be reversed. There is no mathematical way to derive your identity from the hash
No plain-text storage: Your identifying information is never stored alongside your review content
Duplicate prevention: The hash system still prevents duplicate reviews — you can only review each doctor once — without knowing who you are
What We Don't Store
We do not store any connection between your review content and your personal identity. Our database architecture physically separates authentication data from review data, connected only by irreversible hashes.
Why This Matters
Honest feedback improves patient care. When healthcare professionals feel safe speaking candidly about surgical skill, professionalism, and clinical outcomes, the entire system benefits. Patients get better information. Good surgeons get recognized. And surgeons who need improvement get honest signal.
Ghost Identity makes that honesty possible. Submit a review with full confidence in your anonymity, browse existing peer reviews to see it in action, or search for any physician to view their Insight Score.