/usr/share/doc/racket/tools/stamp.sxref is in racket-doc 6.1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | ("11390476350a249762e50ff5e1d914b99c549ca3d910155b78559f7a4c013007aa718edbff2c43f0" "b2f917692cf1cc1cf49127d1b08fedd6788c9acdb13acc6f660c418a687f60b79b824471466f8642" "78c9c50af1e7be87d9e1bf32c56c1f56e3fa8c14")
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