I have updated the OP with the three translations. After the update, there is only one translation left for fillippone's "2^256 private keys". Keep up!
This is good news! Apparently it was a communication problem from gagux and I am still baffled by the fact he forgot to mention not just 1, but 3 translations he made -- but, anyway, it is very good that he did them. Thanks for updating the OP, Porf and thanks gagux for doing those translations.
And some more good news from LB, especially taking into consideration that this was a very complex topic to translate, since it involves not merely the effort of translating but also to bring a personal contribution to the translated post. Great job, LB!
Having this topic translated in Bangla as well, there are only 2 remaining to be translated in this language (the one about joining signature campaigns and the one about SegWit addresses), since LB said he can not translate the topics of fillippone and Husna QA.