diff --git a/examples/Customization/Index.ipynb b/examples/Customization/Index.ipynb
index 0822cb8..1cc59c2 100644
--- a/examples/Customization/Index.ipynb
+++ b/examples/Customization/Index.ipynb
@@ -95,9 +95,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:de8cb1aff3da9097ba3fc7afab4327fc589f2bb1c154feeeb5ed97c87e37486f"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/Embedding/Index.ipynb b/examples/Embedding/Index.ipynb
index e5ecb6a..1652f15 100644
--- a/examples/Embedding/Index.ipynb
+++ b/examples/Embedding/Index.ipynb
@@ -186,9 +186,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:627cdf03b8de558c9344f9d1e8f0beeb2448e37e492d676e6db7b07d33251a2b"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/IPython Kernel/Beyond Plain Python.ipynb b/examples/IPython Kernel/Beyond Plain Python.ipynb
index da3e5e0..984dee2 100644
--- a/examples/IPython Kernel/Beyond Plain Python.ipynb
+++ b/examples/IPython Kernel/Beyond Plain Python.ipynb
@@ -1799,9 +1799,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:31071a05d0ecd75ed72fe3f0de0ad447a6f85cffe382c26efa5e68db1fee54ee"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/IPython Kernel/Capturing Output.ipynb b/examples/IPython Kernel/Capturing Output.ipynb
index 2cc7970..ff0f7c9 100644
--- a/examples/IPython Kernel/Capturing Output.ipynb
+++ b/examples/IPython Kernel/Capturing Output.ipynb
@@ -481,9 +481,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:df6354daf203e842bc040989d149760382d8ceec769160e4efe8cde9dfcb9107"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/IPython Kernel/Custom Display Logic.ipynb b/examples/IPython Kernel/Custom Display Logic.ipynb
index 5b32c8b..4f40795 100644
--- a/examples/IPython Kernel/Custom Display Logic.ipynb
+++ b/examples/IPython Kernel/Custom Display Logic.ipynb
@@ -1317,9 +1317,7 @@
    "source": []
   }
  ],
- "metadata": {
-  "signature": "sha256:86c779d5798c4a68bda7e71c8ef320cb7ba9d7e3d0f1bc4b828ee65f617a5ae3"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/IPython Kernel/Index.ipynb b/examples/IPython Kernel/Index.ipynb
index 9418e0e..f674914 100644
--- a/examples/IPython Kernel/Index.ipynb
+++ b/examples/IPython Kernel/Index.ipynb
@@ -160,9 +160,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:ee769d05a7e195e4b8546ef9a866ef03e59bff2f0fcba499d168c06b516aa79a"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/IPython Kernel/Plotting in the Notebook.ipynb b/examples/IPython Kernel/Plotting in the Notebook.ipynb
index 00e713b..0d09126 100644
--- a/examples/IPython Kernel/Plotting in the Notebook.ipynb
+++ b/examples/IPython Kernel/Plotting in the Notebook.ipynb
@@ -732,9 +732,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:74dbf5caa25c937be70dfe2ab509783a01f4a2044850d7044e729300a8c3644d"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/IPython Kernel/Raw Input in the Notebook.ipynb b/examples/IPython Kernel/Raw Input in the Notebook.ipynb
index f9887b2..78cf9bd 100644
--- a/examples/IPython Kernel/Raw Input in the Notebook.ipynb
+++ b/examples/IPython Kernel/Raw Input in the Notebook.ipynb
@@ -150,9 +150,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:ac5c21534f3dd013c78d4d201527f3ed4dea5b6fad4116b8d23c67ba107e48c3"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/IPython Kernel/Rich Output.ipynb b/examples/IPython Kernel/Rich Output.ipynb
index c3e8f0b..9cbf86b 100644
--- a/examples/IPython Kernel/Rich Output.ipynb
+++ b/examples/IPython Kernel/Rich Output.ipynb
@@ -3051,9 +3051,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:cf83dc9e6288480ac94c44a5983b4ee421f0ade792a9fac64bc00719263386c0"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/IPython Kernel/SymPy.ipynb b/examples/IPython Kernel/SymPy.ipynb
index 101fec7..68172fa 100644
--- a/examples/IPython Kernel/SymPy.ipynb
+++ b/examples/IPython Kernel/SymPy.ipynb
@@ -1647,9 +1647,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:a0f4cda82587c5b8e7a4502192d1210abedac9084077604eb60aea15f262a344"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/IPython Kernel/Terminal Usage.ipynb b/examples/IPython Kernel/Terminal Usage.ipynb
index aa63300..e01e038 100644
--- a/examples/IPython Kernel/Terminal Usage.ipynb
+++ b/examples/IPython Kernel/Terminal Usage.ipynb
@@ -261,9 +261,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:993106eecfd7abe1920e1dbe670c4518189c26e7b29dcc541835f7dcf6fffbb2"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/IPython Kernel/Third Party Rich Output.ipynb b/examples/IPython Kernel/Third Party Rich Output.ipynb
index 1e6cb00..a025bb3 100644
--- a/examples/IPython Kernel/Third Party Rich Output.ipynb
+++ b/examples/IPython Kernel/Third Party Rich Output.ipynb
@@ -517,9 +517,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:123d82ef0551f78e5dca94db6e00f1e10ae07d930467cf44709ccc6a9216776a"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/IPython Kernel/Trapezoid Rule.ipynb b/examples/IPython Kernel/Trapezoid Rule.ipynb
index e73bbb3..2bfb555 100644
--- a/examples/IPython Kernel/Trapezoid Rule.ipynb
+++ b/examples/IPython Kernel/Trapezoid Rule.ipynb
@@ -374,9 +374,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:cbf49a9ceac0258773ae0a652e9ac7c13e0d042debbf0115cdc081862b5f7308"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/IPython Kernel/Working With External Code.ipynb b/examples/IPython Kernel/Working With External Code.ipynb
index 243ca1b..6f6c1d2 100644
--- a/examples/IPython Kernel/Working With External Code.ipynb
+++ b/examples/IPython Kernel/Working With External Code.ipynb
@@ -333,9 +333,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:4352d4e1c693d919ce40b29ecf5a536917160df68b19a85caccedb1ea7ad06e1"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/Index.ipynb b/examples/Index.ipynb
index 831c309..3e9bc4d 100644
--- a/examples/Index.ipynb
+++ b/examples/Index.ipynb
@@ -41,9 +41,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:0b4b631419772e40e0f4893f5a0f0fe089a39e46c8862af0256164628394302d"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/Interactive Widgets/Beat Frequencies.ipynb b/examples/Interactive Widgets/Beat Frequencies.ipynb
index 2ae3228..13049a3 100644
--- a/examples/Interactive Widgets/Beat Frequencies.ipynb
+++ b/examples/Interactive Widgets/Beat Frequencies.ipynb
@@ -591,9 +591,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:da6a3d73881e321e5ef406aea3e7d706c9dd405c94675318afde957d292f9cb9"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/Interactive Widgets/Exploring Graphs.ipynb b/examples/Interactive Widgets/Exploring Graphs.ipynb
index 05f7c1d..74f060d 100644
--- a/examples/Interactive Widgets/Exploring Graphs.ipynb
+++ b/examples/Interactive Widgets/Exploring Graphs.ipynb
@@ -830,9 +830,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:61f24f38b76cb12d46c178eadc5d85d61bd0fc27f959236ea756ef8e1adc2693"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/Interactive Widgets/Factoring.ipynb b/examples/Interactive Widgets/Factoring.ipynb
index bf7e969..ffab0b5 100644
--- a/examples/Interactive Widgets/Factoring.ipynb
+++ b/examples/Interactive Widgets/Factoring.ipynb
@@ -131,9 +131,7 @@
    "source": []
   }
  ],
- "metadata": {
-  "signature": "sha256:5f38c57d9570e4b6f6edf98c38a7bff81cd16365baa11fd40265f1504bfc008c"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/Interactive Widgets/Image Browser.ipynb b/examples/Interactive Widgets/Image Browser.ipynb
index 96a8005..8430f80 100644
--- a/examples/Interactive Widgets/Image Browser.ipynb
+++ b/examples/Interactive Widgets/Image Browser.ipynb
@@ -297,9 +297,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:4e9f4ce8fa9be2e33ffdae399daec11bf3ef63a6f0065b1d59739310ebfe8008"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/Interactive Widgets/Image Processing.ipynb b/examples/Interactive Widgets/Image Processing.ipynb
index c6d4669..cfa1e10 100644
--- a/examples/Interactive Widgets/Image Processing.ipynb
+++ b/examples/Interactive Widgets/Image Processing.ipynb
@@ -26762,9 +26762,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:d75ab1c53fa3389eeac78ecf8e89beb52871950f296aad25776699b6d6125037"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/Interactive Widgets/Lorenz Differential Equations.ipynb b/examples/Interactive Widgets/Lorenz Differential Equations.ipynb
index 41130b0..4fdfac4 100644
--- a/examples/Interactive Widgets/Lorenz Differential Equations.ipynb
+++ b/examples/Interactive Widgets/Lorenz Differential Equations.ipynb
@@ -13428,9 +13428,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:c6ccfb14927d633933da8b5c0f776a8da756d833654b5a3f8b6121b390ca6424"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/Notebook/Connecting with the Qt Console.ipynb b/examples/Notebook/Connecting with the Qt Console.ipynb
index f620bb8..c76348b 100644
--- a/examples/Notebook/Connecting with the Qt Console.ipynb
+++ b/examples/Notebook/Connecting with the Qt Console.ipynb
@@ -131,9 +131,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:9a1dd30de04270174c09ef33ca214e5b15ca3721547420087c1563ad557d78e3"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/Notebook/Index.ipynb b/examples/Notebook/Index.ipynb
index 44baf4e..6d47cd5 100644
--- a/examples/Notebook/Index.ipynb
+++ b/examples/Notebook/Index.ipynb
@@ -68,9 +68,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:5a3c5ebae9154e13957e7c9d28bd3b7697c4b14f965482feb288d2cdf078983e"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/Notebook/Notebook Security.ipynb b/examples/Notebook/Notebook Security.ipynb
index 8b28ec3..1084e08 100644
--- a/examples/Notebook/Notebook Security.ipynb
+++ b/examples/Notebook/Notebook Security.ipynb
@@ -1,8 +1,6 @@
 {
  "cells": [],
- "metadata": {
-  "signature": "sha256:0abf067a20ebda26a671db997ac954770350d292dff7b7d6a4ace8808f70aca1"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/Notebook/Running the Notebook Server.ipynb b/examples/Notebook/Running the Notebook Server.ipynb
index 38ada9a..2a29326 100644
--- a/examples/Notebook/Running the Notebook Server.ipynb
+++ b/examples/Notebook/Running the Notebook Server.ipynb
@@ -355,9 +355,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:ee4b22b4c949fe21b3e5cda24f0916ba59d8c09443f4a897d98b96d4a73ac335"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/Notebook/Working With Markdown Cells.ipynb b/examples/Notebook/Working With Markdown Cells.ipynb
index d8f3dc6..e2dead7 100644
--- a/examples/Notebook/Working With Markdown Cells.ipynb
+++ b/examples/Notebook/Working With Markdown Cells.ipynb
@@ -296,9 +296,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:3b7cae0c0936f25e6ccb7acafe310c08a4162a1a7fd66fa9874a52cffa0f64f9"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/Parallel Computing/Index.ipynb b/examples/Parallel Computing/Index.ipynb
index 6f49df0..f500583 100644
--- a/examples/Parallel Computing/Index.ipynb
+++ b/examples/Parallel Computing/Index.ipynb
@@ -346,9 +346,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:1e9336d35cc07875300c5b876df6ce1f1971c2ee94870788c6ea32bbb789c42b"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/Parallel Computing/Monte Carlo Options.ipynb b/examples/Parallel Computing/Monte Carlo Options.ipynb
index c32dbc5..bd4665a 100644
--- a/examples/Parallel Computing/Monte Carlo Options.ipynb
+++ b/examples/Parallel Computing/Monte Carlo Options.ipynb
@@ -2533,9 +2533,7 @@
    ]
   }
  ],
- "metadata": {
-  "signature": "sha256:1b19dedc6473d4e886e549020c6710f2d14c17296168a02e7e7fa9673912b893"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file
diff --git a/examples/Parallel Computing/Parallel Decorator and map.ipynb b/examples/Parallel Computing/Parallel Decorator and map.ipynb
index f288318..45097d6 100644
--- a/examples/Parallel Computing/Parallel Decorator and map.ipynb
+++ b/examples/Parallel Computing/Parallel Decorator and map.ipynb
@@ -107,9 +107,7 @@
    "source": []
   }
  ],
- "metadata": {
-  "signature": "sha256:8781781d8835d77bf0f71b535b72ee2718405543c48e87ad0408242119cdb3cc"
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 0
 }
\ No newline at end of file