[DOCS ISSUE] Page: Content Identifiers (CIDs)

[fulldecent]

The IPFS documentation on CID should explain which CID types are supported by IPFS clients.

Documentation should answer these questions:

• Is every file just SHA256 hashed and then CID is a way of expressing that fact?

And maybe also

• Who decides when new hash types will be accepted?
• When new hash formats are accepted will clients disallow uploading/storing files of the old hash format?

[jessicaschilling]

@johnnymatthews -- are you able to take this on next week? Thank you!

[terichadbourne]

The "Anatomy of a CID" section of Core Course A from IPFS Camp might be helpful for some of this. https://www.youtube.com/watch?v=Z5zNPwMDYGg

[johnnymatthews]

Hey @fulldecent. You've brought up a good point, mainly the policy/process for deciding new hashing types. I've made a thread to discuss it over on the IPFS forum.

[fulldecent]

Thank you. PR added here #395

[jessicaschilling]

Closed via #395 - thanks!