Dear indologists,
I am struggling with the "chronology" regarding the
catushpithas concept and its first appearance in the Vajrayana cosmos.
Particularly, the Catushpitha Tantra described a list of four pithas linked to philosophical concepts---atman pitha, para pitha, yoga pitha and guhya pitha (cit.
in D.C. Sircar [The Shakta Pithas] 1948, 11).
Regarding this text, the only clue that I found is that one of its commentaries was copied in 1145 CE (ibid.).
While I found no discussion about the original text, and particularly if it was previous or coeval with the Hevajra Tantra (that could be date between seventh and middle of eighth centuries)---althoug from Sircar study I argued he considered the two tantras to be more or less coeval.