cmark/cmark-0.31.0-2-x86_64.pkg.tar.zst build reproducible in our test framework:
e4bc294de210b407b275b0bc68421d17ad86a74039ae9cd0d77d3d80d58dc9a3 cmark-0.31.0-2-x86_64.pkg.tar.zst
9574f2f304e79eb9f15ebd134f56a7abac97ccb1202a18b1cb1119b86ea1045d cmark-0.31.0-2-x86_64.pkg.tar.zst-b1.BUILDINFO.txt
9574f2f304e79eb9f15ebd134f56a7abac97ccb1202a18b1cb1119b86ea1045d cmark-0.31.0-2-x86_64.pkg.tar.zst-b2.BUILDINFO.txt