diff --git a/.appveyor.yml b/.appveyor.yml
index 18fc957cb3..6bbc973641 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -54,4 +54,9 @@ install:
   - conan user # It creates the conan data directory
 
 test_script:
+  # - git fetch --unshallow
+  # - export BITPRIM_BUILD_NUMBER="$(git describe)"
+  - for /f %%i in ('git describe') do set BITPRIM_BUILD_NUMBER=%%i
+  - echo %BITPRIM_BUILD_NUMBER%
+
   - python build.py
diff --git a/.travis.yml b/.travis.yml
index 0cd4d40743..60a048f1d0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -44,6 +44,9 @@ osx: &osx
 
 matrix:
    include:
+      - <<: *linux
+        env: PUSH_TO_REPOS=true
+   
       - <<: *linux
         env: CONAN_GCC_VERSIONS=4.9 CONAN_DOCKER_IMAGE=lasote/conangcc49
 
@@ -72,12 +75,28 @@ matrix:
         env: CONAN_APPLE_CLANG_VERSIONS=8.1
 
 install:
-  - chmod +x .travis/install.sh
-  - ./.travis/install.sh
+  - cd ${TRAVIS_BUILD_DIR}
+
+  - |
+    if [[ "${PUSH_TO_REPOS}" != "true" ]]; then
+      chmod +x .travis/install.sh
+      ./.travis/install.sh
+    fi    
 
 script:
-  - chmod +x .travis/run.sh
-  - ./.travis/run.sh
+  - git fetch --unshallow
+  - export BITPRIM_BUILD_NUMBER="$(git describe)"
+  - echo "${BITPRIM_BUILD_NUMBER}"
+
+  - |
+    if [[ "${PUSH_TO_REPOS}" == "true" ]]; then
+      chmod +x .travis/push_other_repo.sh
+      ./.travis/push_other_repo.sh
+    else
+      cd ${TRAVIS_BUILD_DIR}
+      chmod +x .travis/run.sh
+      ./.travis/run.sh
+    fi  
 
 notifications:
   email: false
diff --git a/.travis/push_other_repo.sh b/.travis/push_other_repo.sh
new file mode 100644
index 0000000000..618bb1e178
--- /dev/null
+++ b/.travis/push_other_repo.sh
@@ -0,0 +1,42 @@
+#!/bin/bash
+
+function replace_versions {
+    # echo $1 #project name
+    # echo $2 #build number
+    if [ ! -f versions.txt ]; then
+        echo "$1: $2" >> versions.txt
+    else
+        while read p; do
+            if [[ $p == *"$1:"* ]]; then
+                echo "$1: $2" >> versions.txt.t
+            else
+                echo $p >> versions.txt.t
+            fi
+        done <versions.txt
+        mv versions.txt{.t,}
+    fi
+}  
+
+set -e
+set -x
+
+git config --global user.email "ci@bitprim.org"
+git config --global user.name "Bitprim CI"
+
+mkdir temp
+cd temp
+
+# git clone https://github.com/bitprim/bitprim-node-exe.git --depth 1
+git clone https://github.com/bitprim/bitprim-node-exe.git
+
+cd bitprim-node-exe
+echo "Travis branch: ${TRAVIS_BRANCH}"
+git checkout ${TRAVIS_BRANCH}
+
+replace_versions secp256k1 $BITPRIM_BUILD_NUMBER
+
+cat versions.txt
+git add . versions.txt
+git commit --message "Travis secp256k1 build: $BITPRIM_BUILD_NUMBER, $TRAVIS_BUILD_NUMBER"
+git remote add origin-commit https://${GH_TOKEN}@github.com/bitprim/bitprim-node-exe.git > /dev/null 2>&1
+git push --quiet --set-upstream origin-commit ${TRAVIS_BRANCH} 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d24a3ab45a..917d360a8c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -72,7 +72,10 @@ set(WITH_FIELD "auto" CACHE STRING "Specify Field Implementation (64bit|32bit|au
 set(WITH_SCALAR "auto" CACHE STRING "Specify scalar implementation (64bit|32bit|auto).")
 set(WITH_BIGNUM "auto" CACHE STRING "Specify Bignum Implementation (gmp|mpir|no|auto).")
 
-# message(${WITH_BIGNUM})
+
+set(BITPRIM_BUILD_NUMBER "-" CACHE STRING "Specify the Bitprim Build Number.")
+# message(${BITPRIM_BUILD_NUMBER})
+
 
 if (NOT NO_CONAN_AT_ALL)
   if(EXISTS ${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
diff --git a/build.py b/build.py
index dd254f1b6e..5d5a5460ca 100644
--- a/build.py
+++ b/build.py
@@ -1,3 +1,4 @@
+import os
 from conan.packager import ConanMultiPackager
 
 if __name__ == "__main__":
@@ -12,6 +13,9 @@
         if settings["build_type"] == "Release" \
                 and not("secp256k1:shared" in options and options["secp256k1:shared"]) \
                 and (not "compiler.runtime" in settings or not settings["compiler.runtime"] == "MT"):
+
+            env_vars["BITPRIM_BUILD_NUMBER"] = os.getenv('BITPRIM_BUILD_NUMBER', '-')
+                
             filtered_builds.append([settings, options, env_vars, build_requires])
 
     builder.builds = filtered_builds
diff --git a/conanfile.py b/conanfile.py
index b57a8c0d73..2f731c32ee 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -133,6 +133,7 @@ def build(self):
         # cmake.definitions["WITH_BIGNUM"] = option_on_off(self.options.with_bignum)
 
 
+        cmake.definitions["BITPRIM_BUILD_NUMBER"] = os.getenv('BITPRIM_BUILD_NUMBER', '-')
         cmake.configure(source_dir=self.conanfile_directory)
         cmake.build()