xfce4-panel/xfce4-panel-4.18.6-1-x86_64.pkg.tar.zst build reproducible in our test framework:
7b4d8aad432bbcfe4f1a4b5e0804a659ee3d70401f054455a1b0b9e29fb79467 xfce4-panel-4.18.6-1-x86_64.pkg.tar.zst
f3652894d48d5190db882aab48696f9f573907d99c9c61c3990e87ba21d79960 xfce4-panel-4.18.6-1-x86_64.pkg.tar.zst-b1.BUILDINFO.txt
f3652894d48d5190db882aab48696f9f573907d99c9c61c3990e87ba21d79960 xfce4-panel-4.18.6-1-x86_64.pkg.tar.zst-b2.BUILDINFO.txt