Zero proof is a procedure of checking computations.

零检验是检验计算是否正确的方法。

youdao

You offered zero proof how Jim abandoned his job and loyalties, etc, because he is a hockey enthusiast.

FORBES: The 6 Reasons Research In Motion Shot Itself In the Foot

While initial number-crunching at CERN suggests the new particle has spin zero, more proof is needed.

WSJ: New Data Boosts Case for Higgs Boson Find

The two documents are proof that "EPA officials were aware of the severity of the danger at Ground Zero in contrast to their public statements at the time, " said Joel Kupferman, an environmental lawyer with the Environmental Justice Project who obtained the documents through Freedom of Information Act requests.

CNN: Memos: NYC told Ground Zero air was unsafe