Why would you trust the forum admin? I won't be surprised if the admin does not even know about this particular puzzle. This forum is pretty big.
You should find someone you can really trust if you can't trust yourself. Or learn how to do it properly on your own if you actually do trust yourself.
After all, the process is not that complicated once you know things such as how mining works and how TXs are being broadcasted.

I can write you a quick instruction without you sharing any personal info. It's just step by step doing things on the offline device to make sure nothing leaks out.
This is a general procedure how to broadcast your TX privately and it does apply to any TX which should be private until confirmed by miners, it's not even specific to this puzzle.
You don't need to trust anyone as you don't give away any info.

How would a forum admin help in this case? If someone solved it, that person should just follow the instructions as discussed here. Sign the TX manually, submit it to a private miner he/she trusts and that's all.
It's simple when you know what you are doing. If you don't, then you research and make it simple.
I could also suggest to hire someone, but not sure if one can trust somebody here. I probably would not, but that's me.

That is incorrect. Not sure why you append some piece of AI code here, it will not change a thing.

You keep interchanging meanings of private and public key randomly. That leads me into thinking that you are missing a general understanding how things work. I would highly recommend to learn to avoid common mistakes and losing money.

Exactly the point. Since someone else has the private key, this is no longer "your" wallet and so no longer your coins.

You don't have to run the rental devices when not being used. The cost is zero. That's the beauty of it.

That's all irrelevant to the issue and will not mitigate it at all. A good idea is to learn how TX work in Bitcoin world and how the fees are implemented in general. If you know how to code, then try to make a program to transfer crypto from one wallet to another.


This assumption is incorrect. It's not "their" wallet.

I think you need to learn how transactions signed and why only certain ones can be cracked.
In short, "millions of transactions every day" don't use low entropy private keys. There is no way you can steal them using modern equipment in any feasible way.
There is no special "identification" needed to submit a signed tx to a blockchain.
It's well known what happens when you submit your tx.

It depends who you ask. For some it brings fun, for others it brings a hope to find a pattern.
Yeah, I know, but it's fun to watch too. Just wait when they bring AI into it.

The price is mainly due to a lot of memory. If you don't use it, you just overpay.

Drastically? Did you try to calculate how "drastically" it is? I think the better word is "negligible", not to mention this approach has no solid grounds for this.

It does not mean anything at all regarding the unsolved private keys.
For example, none of the puzzles before 69 had "101" as the prefix, so following your logic the puzzle 69 could not have "101" as prefix, but it did.

The .exe file is a binary. I answered to the second part of your question already. Please take your time to check.

Brute-forcing using the public key is much cheaper than brute-forcing using an address only.

It does not look like it's using Python. Most likely it's C++ with CUDA.
At least, the Linux version uses /dev/urandom, so most likely the Win binary is doing something similar.

You missed the fact that it needs to be approved by the majority of miners/nodes. Even though this is theoretically possible, but would be too expensive to execute.

This is not true. Once you got one confirmation, you can't override the transaction with something else.
Some big services require 6 confirmations to protect from double-spending attack (or 51% attack), but it's not related to the issue how puzzle 69 was stolen.
If you got one confirmation (the tx mined by one block at least), you are good. It would be a way too expensive (read "impossible") to pull 51% attack using Bitcoin network.

Make sure you compile it with 5090 support.

You forgot the plain simple luck. The majority here relies purely on that alone and nothing else.

You scan locally without sharing your final answer to the pool. Does not matter if you trust the pool or not, you keep the answer to yourself.
How do you think the pool can steal it?

Why overcomplicate things? You are talking about a pool. You can just join one.

Does not hang for me running days. Something is wrong with your system.
Could be the high load, maybe the power supply can't handle it or just the general overheating. I would try to run it with opened case maybe or add some extra air flow.

Если прямо совсем холодный, то я бы ещё посоветовал посмотреть на ColdCard MK4.