What are not Early Buddhist Texts (EBTs)?

[josephzizys]

@Jhana4

The Early Buddhist material in the Pāli Canon mainly consists of the first four Pāli Nikāyas, the Patimokkha (basic list of monastic rules) and other Vinaya material as well as some parts of the Khuddaka Nikāya (mainly Sutta Nipata, Itivuttaka, Dhammapada, Therigatha, Theragatha, and the Udana).

Hilariously the actual source of this assertion is our own @sujato and @Brahmali 's Authenticity of the Early Buddhist Texts
which the Wikipedia article cites.

As for inauthentic passages the best resource seems to be:

Some inauthentic passages in the Early Buddhist Texts

This article is collaboratively authored by Bhikkhu Sujato and Bhikkhu Brahmali. It is a work in progress. Those who come to the early Buddhist texts often ask how they are to know what passages can be regarded as authentic or inauthentic. By “authentic” we mean that texts that claim to be spoken by the Buddha or his direct disciples were in fact spoken by them. Authenticity does not imply literal word-for-word identity, but that the substance of the text, and much of the wording, is what it …