0.5 BTC Reward (~USD 31,000) for Recovering the Password (hashcat)

Back in 2013, someone created a Bitcoin Core wallet and encrypted it without giving it much thought.

Over the course of that year, they deposited small amounts of Bitcoin into it. When they later wanted to cash out, they couldn't remember ever encrypting the wallet in the first place.

While attempting to recover access at the time, they filled out the following form (see image).

The version of Bitcoin Core available back then displayed the following recommendation when encrypting a wallet:

This was only a recommendation. The actual technical requirement was simply that the passphrase contain more than one character.

Today, the owner believes the password may contain the word "wallet" (or its Spanish equivalent, "billetera"). His name is Guillermo Ariel Ramirez, birthday 21-nov-1969, from Argentina.

Offline page for manual testing:
https://mrbianchi.github.io/decrypter16btc-web/

Hashcat hash for anyone who wants to attempt brute force:

$bitcoin$96$1bbd24dc0f23175483d619a24e15f4a06e7e1d3d8b13d9a979b7f4223792836f50520c27c698fa9468ff95f481b888f0$16$65e1017f33467568$63533$2$00$2$00 

In 2018, I made a similar post in the Bitcoin Argentina Facebook group:
https://facebook.com/groups/351870631591732/?multi_permalinks=1569987566446693

For those who don't know me, I've completed numerous projects within that community involving wallet recovery and the recovery of cryptocurrency balances.

https://preview.redd.it/surzl9x9h47h1.png?3525&format=png&auto=webp&s=075c6622dba32e4b909977c4c3d637e8fa74986e

https://preview.redd.it/6yhesw6dh47h1.png?1080&format=png&auto=webp&s=8ea8955bdc40bf87009740b377859ac29c8c9f20

https://www.blockchain.com/es/explorer/addresses/btc/189JveWz2WP79oYU9Gq4NUfiurbiuNPUhn