Late Thursday the Daily Caller News Foundation announced that a forensic expert they’d retained to examine the “smoking gun” email Hunter Biden received in April 2015 from a Burisma executive (which was reportedly on a laptop the young Biden abandoned at a repair shop) and which was first reported on by the New York Post deemed the email is “unquestionably authentic.”

The DCNF obtained a full copy of Hunter Biden’s alleged laptop from former New York Mayor Rudy Giuliani on Wednesday. The DCNF provided Robert Graham, the founder of the cybersecurity firm Errata Security, with a copy of the email and its metadata for forensic analysis.

Graham, who has been cited as a cybersecurity expert in The Washington Post, the Associated Press, Wired, Engadget and other news and technology outlets, told the DCNF that he used a cryptographic signature found in the email’s metadata to validate that Vadym Pozharsky, an advisor to Burisma’s board of directors, emailed Hunter Biden on April 17, 2015.

Pozharsky thanked Hunter Biden for inviting him to DC and giving him an opportunity to meet Hunter’s father, and to spend time together. The email decimates Joe Biden’s claims that he knew nothing about Hunter’s business activities with Burisma. When it was published by the New York Post, legacy media pundits parroted Rep. Adam Schiff’s claim that it was “Russian disinformation” and that the authenticity of the laptop hadn’t been established, even though the Biden camp never disputed the laptop’s authenticity.

When challenged earlier this week over their failure to report on the emails or the laptop, legacy media members claimed they needed to have the actual hard drive to be able to examine its contents before they could even report on what was purportedly contained on it. Now, they have a nonpartisan expert who has explained his methodology.

Graham previously told the DCNF that emails sent from Gmail, such as Pozharski’s message to Hunter Biden, can be “absolutely verified beyond a shadow of a doubt” by testing its contents against the unique DKIM signature found in its metadata.

Graham used the DKIM signature within the email to verify with a private key on Google’s servers that the sender, recipient, subject, date and body of the message that the DCNF obtained from Giuliani were unchanged from when the email was originally sent in April 2015.

But can that be faked? Graham says nope:

Graham said the only way the email could have been faked is if someone hacked into Google’s servers, found the private key and used it to reverse engineer the email’s DKIM signature.

The Daily Caller had asked Giuliani for a copy of the hard drive in mid-October, the article claims, and Giuliani refused. The outlet also asked the Biden campaign for comment, but their inquiry was not responded to.