/usr/share/doc/racket/racklog/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 | ("71d26ebc120920edd6dbfe1422a4293005d45b4cdad80634929df3a0b2986672dcf37f8c5be2b7f0" "c7a6e669961eabf8b60bb84cd7d316191aa1e09467bac8c41d5362e9129385445cf0460cbc5db6ea" "78c9c50af1e7be87d9e1bf32c56c1f56e3fa8c14")
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