user126964: Back in 2009 I remember putting Bitcoin-Qt on my computer. I went straight over to the site and downloaded, but never put any wallet name or passphrase. Now in 2021 I remembered what I had done. When I checked it with a new computer, it had uploaded many wallet .dat files. It had been syncing for nearly two months nearly.
Is this my wallet.dat from 2009 onwards? When fully synced, will any mined blocks coinbase, or Bitcoin I was rewarded for good questions back then about Bitcoin-Qt, show in my balance? If not, what do I do to receive my rewards? Is this possible?

user208: If you don't have an actual backup of your wallet.dat file from 2009 (or whatever time you were using/mining Bitcoin), there is no way to recover your funds. Sorry.
Ownership of BTC is defined by access to the private keys, which software early on (and some, still) stores in a wallet file. Without that actual wallet file, you don't have the keys, and there is no other way to obtain them.
BTC is not linked to IP addresses or any other real-world identity. The only thing that matters is the key/wallet.

126964: <p>Back in 2009 I remember putting Bitcoin-Qt on my computer. I went straight over to the site and downloaded, but never put any wallet name or passphrase. Now in 2021 I remembered what I had done. When I checked it with a new computer, it had uploaded many wallet .dat files. It had been syncing for nearly two months nearly.</p>
<p>Is this my wallet.dat from 2009 onwards? When fully synced, will any mined blocks coinbase, or Bitcoin I was rewarded for good questions back then about Bitcoin-Qt, show in my balance? If not, what do I do to receive my rewards? Is this possible?</p>
 208: <p>If you don't have an actual backup of your wallet.dat file from 2009 (or whatever time you were using/mining Bitcoin), there is no way to recover your funds. Sorry.</p>
<p>Ownership of BTC is defined by access to the private keys, which software early on (and some, still) stores in a wallet file. Without that actual wallet file, you don't have the keys, and there is no other way to obtain them.</p>
<p>BTC is not linked to IP addresses or any other real-world identity. The only thing that matters is the key/wallet.</p>
