All you have to do to vet any federal court document is sign into PACER and look it up by case number. Sometimes two cases can have the same case number, but they would be in different districts. https://pacer.login.uscourts.gov/csologin/login.jsf If you do not have an account, you can sign up. You will have to give a credit card, because some of the documents, especially long ones, have  fee to cover the cost of the data transferr. I had one, I do not recall what my ligin is at this point. So look it and let us know if it is legit.