diff --git a/bk4.sh b/bk4.sh
new file mode 100644
index 0000000..d22b42b
--- /dev/null
+++ b/bk4.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+
+# Check if the user has provided the Bitcoin address
+if [ -z "$1" ]; then
+  echo "Usage: $0 <bitcoin_address>"
+  exit 1
+fi
+
+# Set the target Bitcoin address
+target_address="$1"
+
+# Set the output file
+output_file="found_addresses.txt"
+
+# Initialize page number
+page_number=1
+
+# Loop to search through pages
+while true; do
+  # Fetch the page content
+  page_content=$(curl -s "https://privatekeyfinder.io/private-keys/bitcoin/$page_number")
+
+  # Check if the target address is in the page content
+  if echo "$page_content" | grep -q "$target_address"; then
+    # Output to console and also append to the output file
+    echo "Address found: $target_address on page $page_number"
+    echo "$target_address found on page $page_number" >> "$output_file"
+    break
+  fi
+
+  # Increment page number for next iteration
+  ((page_number++))
+done