com.google.android.clockwork.refsysui.default 1.0

These APKs are signed by Samsung Electronics Co., Ltd. and upgrade your existing app.

APK certificate fingerprints

SHA-1: 9741a0f330dc2e8619b76a2597f308c37dbe30a2
SHA-256: b9a42dd5fc4e054889ae4127a6274cec64e75c41733d42f5991e7019f9ea5caf
Certificate: EMAILADDRESS=android.os@samsung.com, CN=Samsung Cert, OU=DMC, O=Samsung Corporation, L=Suwon City, ST=South Korea, C=KR

The cryptographic signature guarantees the files are safe to install and were not tampered with in any way.