The Hiraka Sutra is a Buddhist scripture attributed to the Indian monk Nagarjuna, who is considered one of the most important Mahayana Buddhist philosophers.

Yes, an accepted canon of sutras in Buddhism is the Mahayana sutra.

The Diamond Sutra is a Buddhist text that emphasizes the concept of emptiness (shunyata) and the impermanence of all phenomena. It is one of the most important Mahayana sutras and is considered to be a key teaching on the nature of reality and the path to enlightenment. The sutra is known for challenging traditional views on self and existence.

'The Lotus Sutra is one of the most important and influential of all the sutras or sacred scriptures of Mahayana Buddhism, revered by almost all branches of the Mahayana teachings, and over many centuries the object of intense veneration among Buddhist believers throughout China, Korea, Japan, and other regions of eastern Asia.' So says Burton Watson, the most recent translator of this ancient text.

The Lotus Sutra is famous for being a key scripture in Mahayana Buddhism, emphasizing the potential for all beings to attain enlightenment. It is known for its inclusive teachings that advocate for the universal Buddha nature within all individuals and the idea of skillful means to lead others to enlightenment.