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r/Bitcoin: pre-committing wallet ownership proof against future recovery

reddit-ownership-proof-idea

https://www.reddit.com/r/Bitcoin/comments/1vec9ms/prepared_ownership_proof_idea_smart_or_risky/

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    Extracted text as captured 
    post: 1vec9ms
author: NamedBird
created_utc: 1785760710
title: Prepared Ownership Proof idea: smart or risky?
body:
If stolen coins are ever recovered, how would you prove ownership of your wallet?

When the seed phrase or private key is compromised, transaction history is all that's left.  
But you may not want to use that as proof or it may not be enough proof.

So i got this idea of proving your identity in advance.  
One would adapt the following example file with their own info:

    === Bitcoin wallet ownership claim ===
    Wallet: 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa
    Real name: John Doe
    Birthdate: 1993-04-23
    Nationality: United States, California
    Random: 7314c887cfe5f0d29c87f1501f9cbf7aa66d0c9c3cddffbb0d7b9dcea9ea2591
    Random: asldkfjhasdlkfjowiuryoweijfbnhsk394y7wieufhkjashf39wh3928sdkjhdf

Then you'd take the sha256sum of the adapted file and put it inside the first transaction to your new wallet. If something ever happens to the wallet or coins, this file will prove your wallet ownership. 

Obviously, you must keep this file just as secret and secure as your seed phrases.  
It links your identity to your money. (Leaking it could risk crowbar incidents.)

Things i have thought of:  
\- included the wallet identifier in this file to prevent impersonation.  
\- Added randoms to prevent (brute-force) reversing the SHA to one's details.  
\- Randoms can be computer generated, keyboard mashing, dice, etc.

  
Now my question: Would it be a bad idea to do this?

Are there any risks or consequences that may not immediately be obvious?  
I assume this method would be strong enough to serve as proof. Any other opinions?  


comment: p1fqpkz
parent: t3_1vec9ms

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