These are just bytes, think of it as another language between two computers talking to each other. This is what your bitcoin core node is doing in the background. It is sending and receiving thee messages to "communicate".
f9beb4d9 says start here.
76657273696f6e0000000000 says the type of message I am sending you is "version"
766572616b00000000000000 says the type of message I am sending you is "verak"
The rest is other information such as IP addresses, ports, latest block height you have,...
That's the "greeting" part.
747800000000000000000000 says the type of message I am sending you is a "tx"
The rest is the transaction itself.
https://bitcoin.org/en/developer-reference#p2p-network
sorry but I did not find a new message button
https://coinomi.com/
guys I know I'm a little late, but if we want there was not 1 key-extraction terrestrial, then 1 part of the private keys pulled it out
automatically xapo from his wallet, instead the other I had on electrum, I have the doubt of having lost it, when I did also there late the extraction of private bitcoin cash keys, because once exported from bitcoin, the private keys to collect cash Btc, I did not trust and I created 1 other wallet on electrum, where I moved the traditional btc, about 2 months after the postfork bitcoin gold .. do you think I played there to redeem the bitcoin gold?
I have already tried to export the private keys from the old wallet almost empty with the bitcoins prefork, and tells me exporting it on app coinom that there are no funds : - \, do you think it went like this?