https://learn.microsoft.com/en-us/dotnet/api/microsoft.identitymodel.tokens.jsonwebkey.x5t?view=msal-web-dotnet-latest
JsonWebKey.X5t Property (Microsoft.IdentityModel.Tokens) - Microsoft Authentication Library for...
Gets or sets the 'x5t' (X.509 Certificate SHA-1 thumbprint)..
propertymicrosofttokensauthenticationlibrary