diff --git a/LetsEncrypt/ACMEv2/Account.cs b/LetsEncrypt/ACMEv2/Account.cs
index dc9fe45..091947c 100644
--- a/LetsEncrypt/ACMEv2/Account.cs
+++ b/LetsEncrypt/ACMEv2/Account.cs
@@ -3,17 +3,7 @@
  */
 
 using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net.Http;
-using System.Security.Cryptography;
-using System.Security.Cryptography.X509Certificates;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
 using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
 
 namespace ACMEv2
 {
diff --git a/LetsEncrypt/ACMEv2/AuthorizationChallange.cs b/LetsEncrypt/ACMEv2/AuthorizationChallange.cs
index a1eac08..618d52a 100644
--- a/LetsEncrypt/ACMEv2/AuthorizationChallange.cs
+++ b/LetsEncrypt/ACMEv2/AuthorizationChallange.cs
@@ -1,15 +1,5 @@
 using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net.Http;
-using System.Security.Cryptography;
-using System.Security.Cryptography.X509Certificates;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
 using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
 
 namespace ACMEv2
 {
diff --git a/LetsEncrypt/ACMEv2/AuthorizationChallengeResponse.cs b/LetsEncrypt/ACMEv2/AuthorizationChallengeResponse.cs
index 43f9726..9345e0e 100644
--- a/LetsEncrypt/ACMEv2/AuthorizationChallengeResponse.cs
+++ b/LetsEncrypt/ACMEv2/AuthorizationChallengeResponse.cs
@@ -1,15 +1,5 @@
 using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net.Http;
-using System.Security.Cryptography;
-using System.Security.Cryptography.X509Certificates;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
 using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
 
 namespace ACMEv2
 {
diff --git a/LetsEncrypt/ACMEv2/AuthorizeChallenge.cs b/LetsEncrypt/ACMEv2/AuthorizeChallenge.cs
index 54525e0..e81a133 100644
--- a/LetsEncrypt/ACMEv2/AuthorizeChallenge.cs
+++ b/LetsEncrypt/ACMEv2/AuthorizeChallenge.cs
@@ -1,15 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net.Http;
-using System.Security.Cryptography;
-using System.Security.Cryptography.X509Certificates;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
+using Newtonsoft.Json;
 
 namespace ACMEv2
 {
diff --git a/LetsEncrypt/ACMEv2/CachedCertificateResult.cs b/LetsEncrypt/ACMEv2/CachedCertificateResult.cs
index 9895663..0bb886c 100644
--- a/LetsEncrypt/ACMEv2/CachedCertificateResult.cs
+++ b/LetsEncrypt/ACMEv2/CachedCertificateResult.cs
@@ -1,15 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net.Http;
-using System.Security.Cryptography;
-using System.Security.Cryptography.X509Certificates;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
+using System.Security.Cryptography;
 
 namespace ACMEv2
 {
diff --git a/LetsEncrypt/ACMEv2/CertificateCache.cs b/LetsEncrypt/ACMEv2/CertificateCache.cs
index ebadc42..77df951 100644
--- a/LetsEncrypt/ACMEv2/CertificateCache.cs
+++ b/LetsEncrypt/ACMEv2/CertificateCache.cs
@@ -1,17 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net.Http;
-using System.Security.Cryptography;
-using System.Security.Cryptography.X509Certificates;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
-
-namespace ACMEv2
+namespace ACMEv2
 {
     public class CertificateCache
     {
diff --git a/LetsEncrypt/ACMEv2/DirectoryMeta.cs b/LetsEncrypt/ACMEv2/DirectoryMeta.cs
index 0260dd7..cf9c308 100644
--- a/LetsEncrypt/ACMEv2/DirectoryMeta.cs
+++ b/LetsEncrypt/ACMEv2/DirectoryMeta.cs
@@ -1,15 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net.Http;
-using System.Security.Cryptography;
-using System.Security.Cryptography.X509Certificates;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
+using Newtonsoft.Json;
 
 namespace ACMEv2
 {
diff --git a/LetsEncrypt/ACMEv2/FinalizeRequest.cs b/LetsEncrypt/ACMEv2/FinalizeRequest.cs
index 4cc0f80..e9175b1 100644
--- a/LetsEncrypt/ACMEv2/FinalizeRequest.cs
+++ b/LetsEncrypt/ACMEv2/FinalizeRequest.cs
@@ -1,15 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net.Http;
-using System.Security.Cryptography;
-using System.Security.Cryptography.X509Certificates;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
+using Newtonsoft.Json;
 
 namespace ACMEv2
 {
diff --git a/LetsEncrypt/ACMEv2/IHashLocation.cs b/LetsEncrypt/ACMEv2/IHashLocation.cs
index a7fee22..8927a70 100644
--- a/LetsEncrypt/ACMEv2/IHashLocation.cs
+++ b/LetsEncrypt/ACMEv2/IHashLocation.cs
@@ -1,15 +1,5 @@
 using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net.Http;
-using System.Security.Cryptography;
-using System.Security.Cryptography.X509Certificates;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
+
 namespace ACMEv2
 {
     interface IHasLocation
diff --git a/LetsEncrypt/ACMEv2/Jwk.cs b/LetsEncrypt/ACMEv2/Jwk.cs
index f618059..0453ae7 100644
--- a/LetsEncrypt/ACMEv2/Jwk.cs
+++ b/LetsEncrypt/ACMEv2/Jwk.cs
@@ -2,6 +2,7 @@
  * JSON Web Key (JWK)
  * https://tools.ietf.org/html/rfc7517
  * https://www.gnupg.org/documentation/manuals/gcrypt-devel/RSA-key-parameters.html
+ * https://static.javadoc.io/com.nimbusds/nimbus-jose-jwt/2.15.2/com/nimbusds/jose/jwk/RSAKey.html
  *
 */
 
@@ -46,44 +47,59 @@ namespace ACMEv2
         public string Use { get; set; }
 
         /// <summary>
-        /// RSA public modulus n.
+        /// The the modulus value for the public RSA key. It is represented as the Base64URL encoding of value's big endian representation.
         /// </summary>
         [JsonProperty("n")]
         public string Modulus { get; set; }
 
         /// <summary>
-        /// RSA public exponent e. 
+        /// The exponent value for the public RSA key. It is represented as the Base64URL encoding of value's big endian representation.
         /// </summary>
         [JsonProperty("e")]
         public string Exponent { get; set; }
 
         /// <summary>
-        /// RSA secret exponent d = e^-1 \bmod (p-1)(q-1).
+        /// The private exponent. It is represented as the Base64URL encoding of the value's big endian representation.
         /// </summary>
         [JsonProperty("d")]
         public string D { get; set; }
 
         /// <summary>
-        /// RSA secret prime p. 
+        /// The first prime factor. It is represented as the Base64URL encoding of the value's big endian representation.
         /// </summary>
         [JsonProperty("p")]
         public string P { get; set; }
 
         /// <summary>
-        /// RSA secret prime q with p < q. 
+        /// The second prime factor. It is represented as the Base64URL encoding of the value's big endian representation.
         /// </summary>
         [JsonProperty("q")]
         public string Q { get; set; }
 
+        /// <summary>
+        /// The first factor Chinese Remainder Theorem exponent. It is represented as the Base64URL encoding of the value's big endian representation.
+        /// </summary>
         [JsonProperty("dp")]
         public string DP { get; set; }
 
+        /// <summary>
+        /// The second factor Chinese Remainder Theorem exponent. It is represented as the Base64URL encoding of the value's big endian representation.
+        /// </summary>
         [JsonProperty("dq")]
         public string DQ { get; set; }
 
+        /// <summary>
+        /// The first Chinese Remainder Theorem coefficient. It is represented as the Base64URL encoding of the value's big endian representation.
+        /// </summary>
         [JsonProperty("qi")]
         public string InverseQ { get; set; }
 
+        /// <summary>
+        /// The other primes information, should they exist, null or an empty list if not specified.
+        /// </summary>
+        [JsonProperty("oth")]
+        public string OthInf { get; set; }
+
         /// <summary>
         /// "alg" (Algorithm) Parameter
         /// <para>
diff --git a/LetsEncrypt/ACMEv2/JwsHeader.cs b/LetsEncrypt/ACMEv2/JwsHeader.cs
index bfbd52e..3429e0a 100644
--- a/LetsEncrypt/ACMEv2/JwsHeader.cs
+++ b/LetsEncrypt/ACMEv2/JwsHeader.cs
@@ -1,15 +1,5 @@
 using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net.Http;
-using System.Security.Cryptography;
-using System.Security.Cryptography.X509Certificates;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
 using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
 
 namespace ACMEv2
 {
diff --git a/LetsEncrypt/ACMEv2/JwsMessage.cs b/LetsEncrypt/ACMEv2/JwsMessage.cs
index 0b854c6..5eae70b 100644
--- a/LetsEncrypt/ACMEv2/JwsMessage.cs
+++ b/LetsEncrypt/ACMEv2/JwsMessage.cs
@@ -1,15 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net.Http;
-using System.Security.Cryptography;
-using System.Security.Cryptography.X509Certificates;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
+using Newtonsoft.Json;
 
 
 namespace ACMEv2
diff --git a/LetsEncrypt/ACMEv2/LetsEncrytException.cs b/LetsEncrypt/ACMEv2/LetsEncrytException.cs
index 30e7bfa..ed8c440 100644
--- a/LetsEncrypt/ACMEv2/LetsEncrytException.cs
+++ b/LetsEncrypt/ACMEv2/LetsEncrytException.cs
@@ -1,15 +1,5 @@
 using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
 using System.Net.Http;
-using System.Security.Cryptography;
-using System.Security.Cryptography.X509Certificates;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
 
 namespace ACMEv2
 {
diff --git a/LetsEncrypt/ACMEv2/Order.cs b/LetsEncrypt/ACMEv2/Order.cs
index 602b20e..41e6070 100644
--- a/LetsEncrypt/ACMEv2/Order.cs
+++ b/LetsEncrypt/ACMEv2/Order.cs
@@ -1,15 +1,5 @@
 using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net.Http;
-using System.Security.Cryptography;
-using System.Security.Cryptography.X509Certificates;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
 using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
 
 
 namespace ACMEv2
diff --git a/LetsEncrypt/ACMEv2/OrderIdentifier.cs b/LetsEncrypt/ACMEv2/OrderIdentifier.cs
index 4f4e037..b0015fd 100644
--- a/LetsEncrypt/ACMEv2/OrderIdentifier.cs
+++ b/LetsEncrypt/ACMEv2/OrderIdentifier.cs
@@ -1,15 +1,5 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net.Http;
-using System.Security.Cryptography;
-using System.Security.Cryptography.X509Certificates;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
+using Newtonsoft.Json;
+
 
 namespace ACMEv2
 {
diff --git a/LetsEncrypt/ACMEv2/Problem.cs b/LetsEncrypt/ACMEv2/Problem.cs
index cb3a64b..512d2b7 100644
--- a/LetsEncrypt/ACMEv2/Problem.cs
+++ b/LetsEncrypt/ACMEv2/Problem.cs
@@ -1,15 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net.Http;
-using System.Security.Cryptography;
-using System.Security.Cryptography.X509Certificates;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
+using Newtonsoft.Json;
 
 namespace ACMEv2
 {
diff --git a/LetsEncrypt/ACMEv2/RegistrationCache.cs b/LetsEncrypt/ACMEv2/RegistrationCache.cs
index cb5789e..4057ad8 100644
--- a/LetsEncrypt/ACMEv2/RegistrationCache.cs
+++ b/LetsEncrypt/ACMEv2/RegistrationCache.cs
@@ -1,15 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Net.Http;
-using System.Security.Cryptography;
-using System.Security.Cryptography.X509Certificates;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
 
 namespace ACMEv2
 {
diff --git a/LetsEncrypt/Program.cs b/LetsEncrypt/Program.cs
index 988a165..1592aea 100644
--- a/LetsEncrypt/Program.cs
+++ b/LetsEncrypt/Program.cs
@@ -1,15 +1,12 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
-using System.Linq;
-using System.Net.Http;
+
 using System.Security.Cryptography;
 using System.Security.Cryptography.X509Certificates;
-using System.Text;
-using System.Threading;
+
 using System.Threading.Tasks;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
+
 
 
 using ACMEv2;