名無しさん＠日本語勉強中-san,

Thank you very much for your prompt reply.

>as it has been proved

Probably it should be: as it has been confirmed

I was going to write 「it has been approved 」
Is this Ok or confirmed is better?

>There's no verb in the second part of this sentence, it could be written better I think.

I don't know how should I put a verb on the second part.
I appreciate if you give me an example.

名無しさん＠日本語勉強中-san, if you have any question in
Japanese, please feel free to ask me.

Thank you!