I have a list of 50.000 Ethereum addresses which at any time may receive ERC20 transfers.
I know I can create filters but I don't think it scales to send 50.000 RPC calls to an Ethereum node every 20 seconds. Is the solution to ask the Ethereum node for all Transfer events and then filter the events in RAM?
I am using Parity and NEthereum (a C# library).