Those addresses are V1 bitcoin addresses used in the inception up to around the end of ~ 2012. Presumably by Satoshi et al. They are
addresses.
The list is good.
After thinking it over: I don't think it's correct.
This address for example has never sent anything, so as far as I know, it's pubkey can't be known. And yet, it's in my list, while other addresses that have been used to send funds aren't in there.
You're looking for public keys that can be used to brute-force private keys, right? I'm still not sure what the pubkey in my list belongs to.