title: What is the claims in ASP .NET Identity
body: <p>Can somebody please explain, what the claim mechanism means in new ASP.NET Identity Core?</p>
  
  <p>As I can see, there is an <code>AspNetUserLogins</code> table, which contains <code>UserId</code>, <code>LoginProvider</code> and <code>ProviderKey</code>.</p>
  
  <p>But, I still can't understand or find any information on when data is added to the <code>AspNetUserClaims</code> table and what situations this table is used for?</p>