My question which perimeters will tell them the addresses belongs to the same person, if it's not the IP history or master public key? In a HD wallet I can not even tell two addresses are from the same wallet if the address formats are same.
Let's say you have created an HD wallet and have generated 20 addresses.
For getting the transaction history of these 20 addresses, electrum sends them to the server and the owner of the server will know that these 20 addresses belong to the same person.
Sorry I am old school and trying to understand part by part.
I have 20 addresses in my HD wallet.
5 addresses have balance with 5 incoming transactions.
2 addresses had balance but now empty because they were spent by 2 outgoing transactions.
5 and 2 means 7 addresses have transaction history but 13 addresses do not have any transaction history.
Owner of the server will know about 7 addresses, they will not know anything about the 13 addresses.
They will know these 7 addresses because all these 7 transactions will send a single at the same time to the server I guess. But if I extract the private keys of all 7 addresses and individually load one by one address then server will not have any knowledge that all 7 addresses were a part of the same HD wallet.
Please correct me where and which part I got wrong and where I got it correct.