I can cryptographically prove that:

• This message came from my key
• I signed this at timestamp T
• This hash matches that data

I cannot cryptographically prove that:

• I am who I claim to be
• The timestamp was not backdated
• The data represents reality

Cryptography proves consistency, not truth.

When someone says “cryptographic proof” — ask: Proof of what exactly?

Proof of key possession ≠ proof of identity Proof of signing ≠ proof of intent Proof of hash ≠ proof of correctness