/usr/share/doc/racket/web-server-internal/stamp.sxref is in racket-doc 6.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | ("ece0d794b20f3c0653e92bc8477d545fdde3dd65d68cce7e88a49e8729c96e78ad9bfe2337887754" "c7a6e669961eabf8b60bb84cd7d316191aa1e09467bac8c41d5362e9129385445cf0460cbc5db6ea" "78c9c50af1e7be87d9e1bf32c56c1f56e3fa8c14")
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