diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..18dd9df
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 suwei
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/packages/harmony-account/LICENSE b/packages/harmony-account/LICENSE
new file mode 100644
index 0000000..18dd9df
--- /dev/null
+++ b/packages/harmony-account/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 suwei
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/packages/harmony-account/package.json b/packages/harmony-account/package.json
index a3a3323..ad55dae 100644
--- a/packages/harmony-account/package.json
+++ b/packages/harmony-account/package.json
@@ -23,5 +23,5 @@
     "@harmony/transaction": "0.0.5",
     "@harmony/utils": "0.0.5"
   },
-  "gitHead": "75235c58b12b8fe512165903008c469ebf46e803"
+  "gitHead": "fcb10df63e2369534342a235edd70091154e2390"
 }
diff --git a/packages/harmony-contract/LICENSE b/packages/harmony-contract/LICENSE
new file mode 100644
index 0000000..18dd9df
--- /dev/null
+++ b/packages/harmony-contract/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 suwei
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/packages/harmony-contract/package.json b/packages/harmony-contract/package.json
index 41060bb..295caee 100644
--- a/packages/harmony-contract/package.json
+++ b/packages/harmony-contract/package.json
@@ -24,5 +24,5 @@
     "@harmony/utils": "0.0.5",
     "abi-decoder": "^1.2.0"
   },
-  "gitHead": "75235c58b12b8fe512165903008c469ebf46e803"
+  "gitHead": "fcb10df63e2369534342a235edd70091154e2390"
 }
diff --git a/packages/harmony-core/LICENSE b/packages/harmony-core/LICENSE
new file mode 100644
index 0000000..18dd9df
--- /dev/null
+++ b/packages/harmony-core/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 suwei
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/packages/harmony-core/package.json b/packages/harmony-core/package.json
index 8bd1204..c4589be 100644
--- a/packages/harmony-core/package.json
+++ b/packages/harmony-core/package.json
@@ -24,5 +24,5 @@
     "@harmony/transaction": "0.0.5",
     "@harmony/utils": "0.0.5"
   },
-  "gitHead": "75235c58b12b8fe512165903008c469ebf46e803"
+  "gitHead": "fcb10df63e2369534342a235edd70091154e2390"
 }
diff --git a/packages/harmony-crypto/LICENSE b/packages/harmony-crypto/LICENSE
new file mode 100644
index 0000000..18dd9df
--- /dev/null
+++ b/packages/harmony-crypto/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 suwei
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/packages/harmony-crypto/package.json b/packages/harmony-crypto/package.json
index 571a7f4..3516305 100644
--- a/packages/harmony-crypto/package.json
+++ b/packages/harmony-crypto/package.json
@@ -30,5 +30,5 @@
     "scrypt.js": "^0.3.0",
     "uuid": "^3.3.2"
   },
-  "gitHead": "75235c58b12b8fe512165903008c469ebf46e803"
+  "gitHead": "fcb10df63e2369534342a235edd70091154e2390"
 }
diff --git a/packages/harmony-network/LICENSE b/packages/harmony-network/LICENSE
new file mode 100644
index 0000000..18dd9df
--- /dev/null
+++ b/packages/harmony-network/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 suwei
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/packages/harmony-network/package.json b/packages/harmony-network/package.json
index a15c7fc..0c4ae1e 100644
--- a/packages/harmony-network/package.json
+++ b/packages/harmony-network/package.json
@@ -23,5 +23,5 @@
     "mitt": "^1.1.3",
     "websocket": "^1.0.28"
   },
-  "gitHead": "75235c58b12b8fe512165903008c469ebf46e803"
+  "gitHead": "fcb10df63e2369534342a235edd70091154e2390"
 }
diff --git a/packages/harmony-transaction/LICENSE b/packages/harmony-transaction/LICENSE
new file mode 100644
index 0000000..18dd9df
--- /dev/null
+++ b/packages/harmony-transaction/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 suwei
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/packages/harmony-transaction/package.json b/packages/harmony-transaction/package.json
index aaed667..dac712f 100644
--- a/packages/harmony-transaction/package.json
+++ b/packages/harmony-transaction/package.json
@@ -22,5 +22,5 @@
     "@harmony/network": "0.0.5",
     "@harmony/utils": "0.0.5"
   },
-  "gitHead": "75235c58b12b8fe512165903008c469ebf46e803"
+  "gitHead": "fcb10df63e2369534342a235edd70091154e2390"
 }
diff --git a/packages/harmony-utils/LICENSE b/packages/harmony-utils/LICENSE
new file mode 100644
index 0000000..18dd9df
--- /dev/null
+++ b/packages/harmony-utils/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 suwei
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/packages/harmony-utils/package.json b/packages/harmony-utils/package.json
index c056e80..bf9a2e6 100644
--- a/packages/harmony-utils/package.json
+++ b/packages/harmony-utils/package.json
@@ -20,5 +20,5 @@
     "@types/bn.js": "^4.11.3",
     "bn.js": "^4.11.8"
   },
-  "gitHead": "75235c58b12b8fe512165903008c469ebf46e803"
+  "gitHead": "fcb10df63e2369534342a235edd70091154e2390"
 }