"Researchers at the Stanford School of Medicine have been working on technology that can analyse faeces (including “stool dropping time”) and track the velocity and colour of urine, as well as test it. An article this month in the Wall Street Journal reported that the researchers have partnered with Izen, a Korean toilet manufacturer, and hope to have prototypes by the end of the year. In order to differentiate between users, the researchers developed a scanner that can recognise the physical characteristics of whoever is sitting on the toilet – or, in the words of the researchers, “the distinctive features of their anoderm” (the skin of the anal canal). Apparently, your “analprint”, like your fingerprints, is unique."
https://www.theguardian.com/lifeandstyle/2021/sep/23/the-smart-toilet-era-is-here-are-you-ready-to-share-your-analprint-with-big-tech
https://www.nature.com/articles/s41746-019-0185-y
https://www.theguardian.com/lifeandstyle/2021/sep/23/the-smart-toilet-era-is-here-are-you-ready-to-share-your-analprint-with-big-tech
https://www.nature.com/articles/s41746-019-0185-y