Expired80% confidenceFactExact time
A Git branch is essentially a movable pointer to a commit node, a text file storing the commit's SHA-1 hash value.
6
Sources
80%
Confidence
Medium-term (~90 days)
Relevance
7/3/2026
First Seen
Valid until: 10/1/2026(expired)
Sources
Claude Code Session Rewind Explained: A Practical Guide with Git Workflow Integration
bilibili啥都懂的程序员6/22/2026
Related Claims
UnverifiedAt the underlying implementation level, a Git branch is a text file under the .git/refs/heads/ directory that stores a 41-byte commit SHA-1 hash value.78% similarVerifiedIn Git, every file, directory, and commit has a SHA-1 hash computed as its address in the object database.78% similarVerifiedGit uses a directed acyclic graph (DAG) to organize commit history, where each commit node points to its parent node, and a branch is a movable pointer to a specific commit.77% similarUnverifiedGit uses SHA-1 (and the gradually transitioning SHA-256) hashes to chain each commit into a linked sequence.76% similarUnverifiedGit将每个文件内容通过SHA-1哈希为blob对象永久存储，即便git rm后仍可通过git reflog或git fsck恢复76% similar
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