That is interesting it's a physical block lol so he's selling private key to a block? I know that private key to the genesis block can control the entire blockchain. Their isn't much info about it. If the priv key has a nonce which it does it must have a private key but it's weird because it doesn't seem to have a public key on the curve. There are 2^256 priv keys and only 2^160 addresses does that leave priv keys for blocks or am I reading too much into lol