Although Git and blockchain both track data over time, Git is not a blockchain since both differ significantly in their structure and application. Git is a distributed version control system, not developed/designed to manage version changes to your source code. Git resolved commits using a DAG (Directed Acyclic Graph); thus, history can be rewritten, altered, or merged to meet our needs. In contrast, a blockchain is immutable and append-only; commits are secure with consensus algorithms/protocols and cryptographic hashes. Unlike Git, blockchains ensure prevention of tampering and save the data—which is why we implement blockchain for things like financial trust and reliable data storage.

The things that are designed to work with blockchains (cryptocurrency wallet development, for example) need the irreversible record-keeping feature of the blockchain to manage your private keys, track your balances and send/validate transactions reliably. But we can all agree that Git is more about flexibility and collaboration—which are not design principles for trust in funds or value.

In an essence Git and blockchain share conceptual similarities; however, they are fundamentally used for very different things. Git is used for collaborative coding, while blockchain is used for secure/tamper-proof digital value exchange.