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On Linux there are ways to set changed at time and created at time for files. For example:
xfs_db -c "inode <inode_number>" -c "chattr <new_change_attribute>" /dev/<device_name>
That is for chaned at on XFS.
BTRFS:
chattr --ctime="2022-01-01 12:00:00" filename
ZFS:
zfs set creation=2022-01-01T00:00:00 pool/dataset/file
Test this before large scale but these things may do setting changed...
All Linux has changed time AKA ctime, access time AKA atime, and modified time AKA mtime. Some Linux also has created time/birth time AKA crtime. Like universally all these may be accessed via "stat" with Bash. You may read "stat --help" in your terminal for more specific information. Changed time is last time metadata changed, and others are self explanatory. On some distros "crtime" may be replaced by "btime" and/or "ctime" may be replaved by "chgtime"....
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