> For the complete documentation index, see [llms.txt](https://resource.optiswap.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://resource.optiswap.pro/intro-to-crypto/its-all-hashes.md).

# It's All Hashes

Are you new and not quite sure what crypto is about?

Here's a good place to start.

The [cryptographic hash function](https://en.wikipedia.org/wiki/Cryptographic_hash_function) plays key functional roles in

* Mining new blocks and keeping a chain
* Proving ownership 

You should understand how the avalanche effect leads to pre-image and collision resistance properties.