I can remember having heard, that, not so long ago, there has been a meeting/convention, where representatives of many (all?) traditions have agreed, that the pali tipitaka is accepted the original teaching of the Buddha and is so to be use at least as the foundation for all traditions/schools ?
Does someone maybe has any details on that?
Generally yes. But - from my expansive discussions on Dhamma/Dharma with mahayanists, I noticed that when you give them some direct sutta quotation from Pali Canon - they just don't listen, don't take it as a proof, as an argument, and continue to think that only mahayana statements are correct. That is to say - they will agree with suttas only when they fit in their mahayanist views. If there is a controversy - they just don't listen.