what is ClaimsIdentity.AuthenticationType for ?

I'm refering to this page:
https://learn.microsoft.com/en-us/dotnet/api/system.security.claims.claimsidentity.authenticationtype?view=net-7.0#system-security-claims-claimsidentity-authenticationtype

I'm using it like this:
```
var identity = new ClaimsIdentity(
new[] { new Claim(ClaimTypes.Name, id.ToString(CultureInfo.InvariantCulture)) },
"ApplicationCookie", // not sure what this string should be, tried a random string and it worked
ClaimTypes.Name,
ClaimTypes.Role);
```
as you can see from my comments, I tried giving it a random string as value ( `aasdf123` ), and it made no difference