diff --git a/docker-compose-ci.yml b/docker-compose-ci.yml
index 0e34b06..8cb870b 100644
--- a/docker-compose-ci.yml
+++ b/docker-compose-ci.yml
@@ -48,12 +48,16 @@ services:
     restart: on-failure
     entrypoint: |
       /bin/bash -l -c "
-        touch proof_out_hex.txt;
-        chmod +x proof_out_hex.txt;
-        echo "$PROOF_OUT_HEX" > proof_out_hex.txt;
-        xxd -r -p proof_out_hex.txt > proof_from_hex.out;
-        chmod +x proof_from_hex.out;
-        mv ./proof_from_hex.out /root/.ipfs/proof_from_hex.out;
+        # Write proof hex to file, preserving newlines and special characters
+        echo -e \"$PROOF_OUT_HEX\" > proof_out_hex.txt;
+        
+        # Convert hex to binary, handling multi-line input
+        cat proof_out_hex.txt | xxd -r -p > proof_from_hex.out;
+        
+        # Ensure proper permissions and move to destination
+        chmod 644 proof_from_hex.out;
+        mv proof_from_hex.out /root/.ipfs/proof_from_hex.out;
+        
         ./ipfs-server -port 3001 -w3-agent-key $W3_AGENT_KEY -w3-delegation-file $W3_DELEGATION_FILE;"
     expose:
       - "4001:4001"