I am not sure if this is correct.
If Satoshi's address has bitcoins, they have to come from somewhere. In the case they had been accumulated during the mining process in the beginning of bitcoin, there exists a coinbase transaction which sends the bitcoins to these addresses.
When you create a paper wallet and there are no bitcoins, you are not able to the address to a user, because it never had an incoming or outgoing transaction.
It should be able to scrap all used addresses from the blockchain.
Unless I am forgetting something or I misunderstood a concept, but I think I don't
Feel free to correct me.
If Satoshi's address has bitcoins, they have to come from somewhere. In the case they had been accumulated during the mining process in the beginning of bitcoin, there exists a coinbase transaction which sends the bitcoins to these addresses.
When you create a paper wallet and there are no bitcoins, you are not able to the address to a user, because it never had an incoming or outgoing transaction.
It should be able to scrap all used addresses from the blockchain.
Unless I am forgetting something or I misunderstood a concept, but I think I don't
Feel free to correct me.
You are correct. If an address has any bitcoins, then it received those from an incoming transaction, and thus can be tracked on the blockchain. Addresses that don't appear in the blockchain by definition cannot have any bitcoins in them, so they can be safely ignored.