A very old Bitcoin wallet – Bitcoin Stack Exchange

There was also a mobile app that allowed you to view blocks and transactions in real time.

The first Bitcoin app was probably Electrum in 2011.

I don’t remember what the app was. It was probably a G-Miner or something.

Not likely to do it. “The first version of GMiner was released on September 21, 2018.”

If I can convert my “Entropy Hexa Hash” to the correct BIP reference, I will have the correct private key and seed word to access my wallet.

first bitcoin improvement The proposal (BIP) was written in 2011, so any features that existed in 2009 were not initially defined by the BIP.

You might think you could use an “Entropy Hexa Hash” to generate a private key, but as far as I know in 2009 there was no way to record that hash rather than recording the private key or, more usefully, backing up the private key. I wouldn’t have done it. This is the wallet.dat file. I don’t know where Bitcoin Core (then “Bitcoin”) in the application made that entropy information available.

Bitcoin Core does not and has never supported the use of seed phrases (recovery phrases) as defined in BIP-39.

All I have now is the old key (private key).

By importing this into your wallet application and having the wallet rescan the blockchain, you will know exactly whether that key has taken control of your money or not. You can see a list of transactions involving public keys derived from each private key in 2009.

To maintain security, I converted the original key to another one. You can simply take your private key and convert it to a SHA256 hash with a cryptographic tool.

The process of creating a hash is irreversible. Therefore, the private key cannot be recovered from the hash of the private key.