Quote from: Bitcoiner2023 on August 04, 2024, 08:09:35 PM

1) What can the owner of a full node see when I connect to his node?

Other member already answered when you connect as full node. But if you connect as lightweight/SPV wallet (which use BIP 158), your wallet would request block filter and block which contain transaction on your opened wallet.

Quote from: hosseinimr93 on August 04, 2024, 11:16:21 PM

Quote from: Mia Chloe on August 04, 2024, 09:40:03 PM

Likewise for Electrum the server should be able to see your IP address, public keys, your transaction history and UTXOs and also you Version of Electrum.

I don't think electrum sends the public keys to servers. To get the transaction history and UTXOs, all electrum needs is the list of the addresses.

If we want to be accurate on this matter, then we should say scripthash instead. https://electrumx-spesmilo.readthedocs.io/en/latest/protocol-methods.html mention these calls.

Code:

blockchain.scripthash.get_balance(scripthash)
blockchain.scripthash.get_history(scripthash)
blockchain.scripthash.get_mempool(scripthash)
blockchain.scripthash.listunspent(scripthash)¶