Git Isn't a Diff Tracker: How Blobs, Trees, DAG Commits, and the Index Actually Work Under the Hood

Post · https://dev.to/smtahosin/git-isnt-a-diff-tracker-how-blobs-trees-dag-commits-and-the-index-actually-work-under-the-hood-19eo

A visual, 10-minute deep dive into Git internal architecture. Learn how content-addressed storage works, why Git never stores diffs, how the index prepares tree objects, and how to recover any lost commit using the reflog.

First seen by Oriel on Oct 14, 2026, 10:34 UTC.

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Last 30 days · Up to 120 recorded samples per source and metric · First and latest retained

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DEV Community: 33, latest observation Oct 17, 2026, 17:23 UTC; 0 over observed period since Oct 14, 2026, 10:34 UTC

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DEV Community: 14, latest observation Oct 17, 2026, 17:23 UTC; +2 over observed period since Oct 14, 2026, 10:34 UTC

Aliases

Source	External ID	URL
DEV Community	4828206	https://dev.to/smtahosin/git-isnt-a-diff-tracker-how-blobs-trees-dag-commits-and-the-index-actually-work-under-the-hood-19eo