diff --git a/blog/posts/biometrics-explained.md b/blog/posts/biometrics-explained.md
index 772c4afb..30c68621 100644
--- a/blog/posts/biometrics-explained.md
+++ b/blog/posts/biometrics-explained.md
@@ -17,7 +17,7 @@ Biometrics are a convenient and secure way to authenticate our devices. Many of
 
 ## :material-fingerprint: Fingerprint
 
-One of the most recognizable types of biometric authentication has to be the fingerprint reader. The idea is that everyone has a fairly unique fingerprint, so we should be able to distinguish between your fingerprint and someone else's reliably. (1)
+One of the most recognizable types of biometric authentication has to be the fingerprint reader. The idea is that everyone has a fairly unique fingerprint, so we should be able to distinguish between your fingerprint and someone else's reliably. (1) [Finger minutiae](https://sites.rutgers.edu/fingerprinting/no-two-finger-prints-are-alike/) data is used to identify a fingerprint as unique.
 { .annotate }
 
 1. :material-fingerprint: It's theorized that the reason humans have fingerprints in the first place is to [enhance our sense of touch](https://www.science.org/doi/10.1126/science.1166467).