>>>Binyan olam was written by Rav Chatzkel Levenstein Zatzal.
It was also rumored to be written by someone who gone to work and was trying to get others to go the other way. A sefer like Binyan Olam that claims there are more chiyuey krisosos than those that are mentioned in the Mishna, Gemora, and the Rambam is upgefregt. Rav Chatzkel Levinstein would not have written stories about the Belzer Rebbe in a sefer of his.