What is the onus of truth?

Could you please elaborate on the concept of "the onus of truth" in the context of cryptocurrency and finance? Is it referring to the responsibility of individuals or organizations to provide accurate and transparent information about their activities and transactions within the cryptocurrency space? Or is it a broader concept that encompasses the ethical obligation to uphold truthfulness and honesty in all aspects of financial dealings? How does this concept relate to the current state of the cryptocurrency market and the challenges faced by investors and regulators alike?