title: How to check which distribution certificate signed an .ipa?
body: <p>I have 2 distribution certificates in my enterprise account, and I have distributed a app with one of the certificates of this account, but I don't know which certificate I signed with.</p>
  
  <p>Now the private keys associated with both certificates have been lost. I have to use a new certificate to sign the app when I distribute a new version next time, but one enterprise account can only generate 2 distribution certificates at most, so I have to revoke a distribution certificate, but I don't know which one can be revoked, if I revoke the certificate that has used to sign my app last time, then all the apps have installed on the user's phone will can't be open.</p>
  
  <p>what should I do? Thank you very much.</p>