The “authentic proverb of Solomon” is that which is written in the Masoretic Text of the Aleppo Codex that we use today. Anything else will only be one dimensional translations that fall short of expressing the full scope of any single verse.
There can not really be a “True translation” as the various nuances of Biblical Hebrew doesn’t lend itself to a single universal translation in many if not most cases.
Also, I think for the most part our studies have not focused on translating the text since elementary school. We are mostly familiar enough with the translation to be more focused on the commentators and using their various commentaries on the verses to get a deeper understanding of the text. Additionally, we are all familiar with the adage that “there are 70 facets to Torah”. So we do not winnow out the truth from our commentaries. We eat the loaves of bread that were prepared for us.
In my opinion- and don’t take this negatively- your question sounds a bit Christian.