diff --git a/.github/workflows/r1s_lean.yml b/.github/workflows/r1s_lean.yml
index ce6e1a5..c09f1e4 100644
--- a/.github/workflows/r1s_lean.yml
+++ b/.github/workflows/r1s_lean.yml
@@ -127,6 +127,9 @@ jobs:
           mkdir -p ./artifact/
           mv friendlywrt-h5/out/*img* ./artifact/
           cp friendlywrt-h5/friendlywrt/.config ./artifact/
+          cd ./artifact/
+          md5sum *img* > md5sum.txt
+          cd ..
           zip -r artifact.zip ./artifact/
           release_tag="R1S-Lean-$(date +%Y-%m-%d)"
           echo "##[set-output name=release_tag;]$release_tag"
diff --git a/.github/workflows/r1s_lean_h3.yml b/.github/workflows/r1s_lean_h3.yml
index 0fe8b88..cb82393 100644
--- a/.github/workflows/r1s_lean_h3.yml
+++ b/.github/workflows/r1s_lean_h3.yml
@@ -132,6 +132,9 @@ jobs:
           mkdir -p ./artifact/
           mv friendlywrt-h3/out/*img* ./artifact/
           cp friendlywrt-h3/friendlywrt/.config ./artifact/
+          cd ./artifact/
+          md5sum *img* > md5sum.txt
+          cd ..
           zip -r artifact.zip ./artifact/
           release_tag="R1S-H3-$(date +%Y-%m-%d)"
           echo "##[set-output name=release_tag;]$release_tag"
diff --git a/.github/workflows/r1s_lienol.yml b/.github/workflows/r1s_lienol.yml
index cddf7c4..71eb53f 100644
--- a/.github/workflows/r1s_lienol.yml
+++ b/.github/workflows/r1s_lienol.yml
@@ -120,6 +120,9 @@ jobs:
           mkdir -p ./artifact/
           mv friendlywrt-h5/out/*img* ./artifact/
           cp friendlywrt-h5/friendlywrt/.config ./artifact/
+          cd ./artifact/
+          md5sum *img* > md5sum.txt
+          cd ..
           zip -r artifact.zip ./artifact/
           release_tag="R1S-Lienol-$(date +%Y-%m-%d)"
           echo "##[set-output name=release_tag;]$release_tag"
diff --git a/.github/workflows/r2s_lean.yml b/.github/workflows/r2s_lean.yml
index 120f196..34dd756 100644
--- a/.github/workflows/r2s_lean.yml
+++ b/.github/workflows/r2s_lean.yml
@@ -113,6 +113,9 @@ jobs:
           mkdir -p ./artifact/
           mv friendlywrt-rk3328/out/*img* ./artifact/
           cp friendlywrt-rk3328/friendlywrt/.config ./artifact/
+          cd ./artifact/
+          md5sum *img* > md5sum.txt
+          cd ..
           zip -r artifact.zip ./artifact/
           release_tag="R2S-Lean-$(date +%Y-%m-%d)"
           echo "##[set-output name=release_tag;]$release_tag"
diff --git a/.github/workflows/r2s_lean_minimal.yml b/.github/workflows/r2s_lean_minimal.yml
index 537982f..d0742a3 100644
--- a/.github/workflows/r2s_lean_minimal.yml
+++ b/.github/workflows/r2s_lean_minimal.yml
@@ -199,6 +199,9 @@ jobs:
           mkdir -p ./artifact/
           mv friendlywrt-rk3328/out/*img* ./artifact/
           cp friendlywrt-rk3328/friendlywrt/.config ./artifact/
+          cd ./artifact/
+          md5sum *img* > md5sum.txt
+          cd ..
           zip -r artifact.zip ./artifact/
           #release_tag="R2S-Lean-$(date +%Y-%m-%d)-Minimal"
           release_tag="R2S-Minimal-$(date +%Y-%m-%d)"
diff --git a/.github/workflows/r2s_lienol.yml b/.github/workflows/r2s_lienol.yml
index 2a35279..36f60b1 100644
--- a/.github/workflows/r2s_lienol.yml
+++ b/.github/workflows/r2s_lienol.yml
@@ -98,6 +98,9 @@ jobs:
           mkdir -p ./artifact/
           mv friendlywrt-rk3328/out/*img* ./artifact/
           cp friendlywrt-rk3328/friendlywrt/.config ./artifact/
+          cd ./artifact/
+          md5sum *img* > md5sum.txt
+          cd ..
           zip -r artifact.zip ./artifact/
           release_tag="R2S-Lienol-$(date +%Y-%m-%d)"
           echo "##[set-output name=release_tag;]$release_tag"
diff --git a/.github/workflows/r2s_lienol_from_lean.yml_ b/.github/workflows/r2s_lienol_from_lean.yml_
index 2654c4f..ac43640 100644
--- a/.github/workflows/r2s_lienol_from_lean.yml_
+++ b/.github/workflows/r2s_lienol_from_lean.yml_
@@ -171,6 +171,9 @@ jobs:
           mkdir -p ./artifact/
           mv friendlywrt-rk3328/out/*img* ./artifact/
           cp friendlywrt-rk3328/friendlywrt/.config ./artifact/
+          cd ./artifact/
+          md5sum *img* > md5sum.txt
+          cd ..
           zip -r artifact.zip ./artifact/
           release_tag="R2S-Minimal-$(date +%Y-%m-%d)"
           echo "##[set-output name=release_tag;]$release_tag"
diff --git a/.github/workflows/r2s_original.yml b/.github/workflows/r2s_original.yml
index a0edd38..2d35007 100644
--- a/.github/workflows/r2s_original.yml
+++ b/.github/workflows/r2s_original.yml
@@ -73,6 +73,9 @@ jobs:
           mkdir -p ./artifact/
           mv friendlywrt-rk3328/out/*img* ./artifact/
           cp friendlywrt-rk3328/friendlywrt/.config ./artifact/
+          cd ./artifact/
+          md5sum *img* > md5sum.txt
+          cd ..
       - name: Upload Artifact
         uses: actions/upload-artifact@master
         with: