About two years ago more than a hundred early day miners signed a message from their corresponding addresses calling Craig Wright (aka faketoshi) a liar and a scammer. You can find the addresses and their signatures in this topic:
https://bitcointalk.org/index.php?topic=5250960.0Yes, that was exactly what I did too. Checked some addresses in the list, but the oldest I found was from December 2009. The signature in the example above is from January 2009. Years ago there was someone here on bitcointalk who mined block ~2000 and that was the oldest what was known.
Now this signature from January 2009

Maybe someone knows more?