Study how the four key timestamps of a file change when you create, edit, preview the file, using Dropera.
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Two confounding factors to take into account when interpreting timestamps on files: what updates the Last opened time, and access via QuickLook.
How can you assure yourself that important files retain their data intact? Here’s a simple strategy for doing that, which works better on a file system that doesn’t check integrity.
This compares short time intervals obtained from log entry timestamps obtained from the log show command via Ulbow, those from LogUI using OSLog, and Mach Absolute Time.
Update adds two new datestamp fields, and gives decimal seconds in times. Use this app to explore how macOS sets those on files, as shown.
Big Sur has recently introduced a bug which can change the format of log datestamps, which can break Ulbow, Mints and T2M2. Here’s how to fix it.
Should a tool like LockRattler show times in universal (UTC) format, or adjusted to the local time zone? There is no good answer, it seems.
Here are two log excerpts which should be identical, but only one out of all the entries is actually the same. What is wrong?
Two current cases show how messy copyright can become: it is not a Happy Birthday for Harry Potter.
Understanding and using OriginStamp’s RESTful API, so that you can create and check timestamps programmatically.
The Eclectic Light Company 