Do anyone know how to solve this problem? Reward is 100BTC. I'm attaching question also to bitcoincore-developmen to find out if there are any solutions, which could already do something with this large issue.

https://www.youtube.com/watch?v=8BOxflDzhgU&t=3s

closed as off-topic by Pieter Wuille, KappaDev, Raghav Sood, kaykurokawa, Andrew Chow Dec 2 at 19:26

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions seeking help for restoring user accounts or other matters concerning your customer relationship with a company should be directed at the respective customer service. Please understand that we have no insights into such matters and therefore consider them as off-topic." – KappaDev, Raghav Sood, kaykurokawa, Andrew Chow
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  • 1
    Hi and welcome. Unfortunately, your post isn't really an appropriate way to use the site. Your question should be concise and self-contained, rather than requiring people to watch a video. Also, offering money to solve a problem is not okay here (see meta.stackexchange.com/questions/133792/…), nor is this a place to look for someone to hire. – Nate Eldredge Nov 29 at 19:36
  • You know... Someone who have knowledge may do it for free if would like, but this is really big thing... So if someone want help for free I don't mind :) – Klerni Nov 29 at 19:50
  • In a video it's better explained. I show exactly what's going on. – Klerni Nov 29 at 19:50
  • So, in other words, you have renamed your wallet.dat while the client was running. Next time the client renamed it to .bak and on another attempt simply deleted. What do you have now? Any backups? Or nothing at all? Do not use your PC, may be it is possible to recover deleted file from hard drive if it not overwritten yet – amaclin Nov 29 at 19:52
  • 2
    PC is completely frozen. Nobody touch it and we have made image of all hard drive so it's safe. Our idea is to look for private keys through hex and we checked all PC length and breadth. There were found some bitcoins, but not that... I think private key to this wallet could be partially broken, but I'm not sure.. Just checking right now how different is xpub key vs pub key. I read somewhere that If I use xpub key and different private key from same wallet.dat, then I could unlock all addresses, but sound too good to be true, so still looking for solution – Klerni Nov 29 at 20:05