These appear to be real PC private keys.
Someone said they were public keys, someone would have used them already
They are private keys, and all 13 are valid PC privkeys.
Come on! We need somebody to step up here and use these.
I believe the legal implications have been pointed out already? Regardless I'd ask a lawyer before touching those.
On the technical side, isn't there a minimum coin requirement to use the keys?
What happens if more than one node claims the same key?
How will consensus and orphaned blocks be handled for the stake if those keys are used?
What do the keys actually give you?