/usr/share/sagemath/ellcurves/rank17 is in sagemath-database-elliptic-curves 0.8-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | 275002099660497726831357243409914570660350492913205270470 a 1 [1,0,0,-1895782483362476188247825431,42810746555185028468846212199762991367145] 17 1
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