Are there only 12 keys?

Excuse me, I'm a bit confused about the statement "Are there only 12 keys?" Could you please elaborate on the context in which this question arises? Are we referring to the cryptographic keys used in blockchain technology, or perhaps a different type of keys in the realm of cryptocurrency and finance? If it's related to cryptography, it's important to note that the number of keys can vary greatly depending on the specific protocol and the purpose they serve. Additionally, the security of a system often depends on the strength and diversity of the keys in use. So, could you please clarify the nature of the "keys" being referred to, and provide some more context for your question?