diff --git a/.circleci/config.yml b/.circleci/config.yml
index 6caf7dfe60..bdaba9e834 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -193,6 +193,9 @@ jobs:
       - run:
           name: Cargo release build with target arch set for CRoaring
           command: ROARING_ARCH=x86-64 cargo build --release
+      - run: |
+          echo sha256sum after build is
+          sha256sum target/release/influxdb_iox
       - setup_remote_docker:
           docker_layer_caching: true
       - run: |
diff --git a/docker/Dockerfile.iox b/docker/Dockerfile.iox
index 2e13c4ebf8..b06025ddd2 100644
--- a/docker/Dockerfile.iox
+++ b/docker/Dockerfile.iox
@@ -16,6 +16,7 @@ RUN mkdir ~/.influxdb_iox
 RUN ls -la ~/.influxdb_iox
 
 COPY target/release/influxdb_iox /usr/bin/influxdb_iox
+RUN echo "The binary just added has sha256 sum $(sha256sum /usr/bin/influxdb_iox)"
 
 EXPOSE 8080 8082