Any who opens the Lockbox of the Atheist proves themselves to be God or a true prophet and would instantly cure my unwanted atheism.

I posted previously about how if God wanted me to believe, I would and how no extant god can want me to believe and be capable of communicating that it exists.

Thought I'd reveal a bit about how my gambit works -

I have, on an air-gapped personal device, an encrypted file with a passphrase salted and hashed, using the CRYSTALS-KYBER algorithm. Inside this lockbox of text is a copy of every holy text I could get my hands on, divided into very simply labeled folders (Imagine "R1", "R2", etc. for each extant religion's holy documents I could get my hands on - but slightly different, don't want to give away the folder structure!)

If I am presented with the correct 256-character number, which even I do not know, to open this lockbox, along with a folder code, from ANY source, then that makes that folder's holy texts mathematically certain to be genuinely of divine origin. Only God or some other omnipresent being could possibly do so.

But what if quantum computers come out and screw up cryptography?

CRYSTAL-KYBER is hardened against QC devices! It's a relatively new NIST-certified encryption algorithm. I wrote a Python implementation of the CC0 C reference implementation to do this.

Even if someone guesses the password, that doesn't make them God!

Guessing the password is equivalent to picking the one single designated atom out of the entire universe required to open a vault - a feat beyond even the most advanced of alien civilizations and beyond the computer power of an array powered by an entire star. The entirety of the universe would burn out and heat death before it was cracked.

What if some unexpected encryption development occurs?

I'll update the lockbox or make a new one in the case of any event that makes guessing or cracking the password mathematically less likely than divine knowledge.

God doesn't kowtow to your whimsical demands!

1: This is identical in appearance to not existing, and we both have no method of distinguishing the two.

2: This is identical in appearance to "God does not care if I believe", and we both have no method of distinguishing between the three.

3: I wouldn't want to worship a sneaky trickster god who hides themselves to keep their appearances special.

God doing so would harm your free will!

If I will that my free will is harmed, that is irrelevant, and boy do I sure feel bad for all those prophets who lost their free will.

I can't think of any reason for many popular versions of God to not do this, and I can think of many reasons for many people's interpretation of God to do this, so....

your move, God.