" 

 :Not done. The provided reference is a news article from 2005, which provides only tentative claims. It explicitly states: ""The claim on the date of the script and the assertion that it is in Tamil-Brahmi will be subjected to the scrutiny of scholars in the field."". Ten years have passed since this was written, so by now there should be some scholarly source available to confirm that that assertion if scholars have indeed accepted this. -   "