Quote from: o_e_l_e_o on December 25, 2021, 03:40:26 PM

There is also the issue as PN7 rightly points out, that your bot will be querying addresses which have either already received a transaction or will never receive a transaction, whereas you will likely be querying addresses which have not received a transaction but then later do. The way around both these issues that I see would be to create a wallet while offline, pull out a single address to use, and then only after you have received coins to that address, import that address to a new watch only wallet along with 10+ other random addresses which first received coins around the same time as your address did. Then you would be querying 10+ unrelated addresses, all of which were brand new but just received coins around the same time. This is still far from perfect though and seems like an incredibly clunky way to do things when you could just run your own node instead.

The problem with your suggestion is that it is not possible to know which other addresses received transactions around the same time your address received a transaction. If you had this information, you would not need to query an SPV server in the first place because you would have access to all transaction information.

Even waiting until your address has received a transaction is difficult because, in most cases, you will not know for sure if you have actually received a transaction (if you knew you did, why would you be asking an SPV server for this information?) -- you might have been told that a transaction was sent to you, however in these cases, there will sometimes be a delay between when someone tells you they sent a transaction, and when a transaction is first seen on the network.

SPV nodes, by their nature trade privacy for resources required to run the node.

I think the best way to maximize privacy while using an SPV client (given the limitations of SPV clients) is to query a single address at a time after you have reason to believe the address has received a transaction. You can do things such as alternate SPV servers each time you make a query to reduce the amount of information any single entity will collect about you.