Why is Git not considered a "block chain"?

Why is Git not considered a "block chain"?

git hash blockchain

git

Hash collision in git

git hash sha1 hash-collision

git

How does git compute file hashes?

git hash sha1 checksum git-hash

git

Git Tag list, display commit sha1 hashes

git logging hash git-tag verbose

git

Why is the Python calculated "hashlib.sha1" different from "git hash-object" for a file?

python git hash

git

In Git, what is the difference between long and short hashes?

git hash

git

How does Git create unique commit hashes, mainly the first few characters?

git algorithm hash git-hash

git

How is the Git hash calculated?

git hash

git

Know git hash before committing?

git hash

git

How does Git track history during a refactoring?

git refactoring hash dvcs

git

How can I calculate git tree hash?

javascript node.js git perl hash

git

One way hash (not for crypto/security), use SHA256 (not MD5, SHA-1)?

git hash md5 scons sha256

git

Git is moving to new hashing algorithm SHA-256 but why git community settled on SHA‑256

git hash cryptography

git

Why does Git use the SHA1 of the compressed objects rather than the SHA1 of the original objects?

git hash compression blob sha1

git

Shortest hash? MD5 / SHA . First chars, git

git hash md5 sha

git