libspng/libspng-0.7.4-2-x86_64.pkg.tar.zst build reproducible in our test framework:
6f2e830489674f110f4a666aba17073d53598052288cfa44a8b55b3536bc0bdb libspng-0.7.4-2-x86_64.pkg.tar.zst
87411eb7dee82994a1eebeef03a5bb788ca95a596238dc5d9f904fcf9486a46a libspng-0.7.4-2-x86_64.pkg.tar.zst-b1.BUILDINFO.txt
87411eb7dee82994a1eebeef03a5bb788ca95a596238dc5d9f904fcf9486a46a libspng-0.7.4-2-x86_64.pkg.tar.zst-b2.BUILDINFO.txt