diff --git a/elft_1_x/include/elft.h b/elft_1_x/include/elft.h
index 9806011..dfd0158 100644
--- a/elft_1_x/include/elft.h
+++ b/elft_1_x/include/elft.h
@@ -238,17 +238,17 @@ namespace ELFT
 		 * @param bpp
 		 * Number of bits comprising a single pixel (8, 16, 24, or 48).
 		 * @param pixels
-		 * #width * #height * (#bpp / #bpc) bytes of image data, with
-		 * `pixels.front()` representing the first byte of the top-left
-		 * pixel, and `pixels.back()` representing the last byte of
-		 * bottom-right pixel. It is decompressed big endian image
-		 * data, canonically coded as defined in ISO/IEC 19794-4:2005,
-		 * section 6.2. For example, 0xFF00 is closer to white than it
-		 * is to black.
+		 * `width` * `height` * (`bpp` / `bpc`) bytes of image data,
+		 * with `pixels.front()` representing the first byte of the
+		 * top-left pixel, and `pixels.back()` representing the last
+		 * byte of the bottom-right pixel. It is decompressed big endian
+		 * image data, canonically coded as defined in
+		 * ISO/IEC 19794-4:2005, section 6.2. For example, 0xFF00 is
+		 * closer to white than it is to black.
 		 *
 		 * @note
-		 * Number of color components is #bpp / #bpc and shall be either
-		 * 1 (grayscale) or 3 (RGB).
+		 * Number of color components is `bpp` / `bpc` and shall be
+		 * either 1 (grayscale) or 3 (RGB).
 		 */
 		Image(
 		    const uint8_t identifier,
@@ -284,7 +284,7 @@ namespace ELFT
 		 * @details
 		 * #width * #height * (#bpp / #bpc) bytes of image data, with
 		 * `pixels.front()` representing the first byte of the top-left
-		 * pixel, and `pixels.back()` representing the last byte of
+		 * pixel, and `pixels.back()` representing the last byte of the
 		 * bottom-right pixel. It is decompressed big endian image
 		 * data, canonically coded as defined in ISO/IEC 19794-4:2005,
 		 * section 6.2. For example, 0xFF00 is closer to white than it
@@ -1291,7 +1291,7 @@ namespace ELFT
 		 * @brief
 		 * Load reference database into memory.
 		 *
- 		 * @param maxSize
+		 * @param maxSize
 		 * Suggested maximum number of bytes of memory to consume in
 		 * support of searching the reference database faster.
 		 *
@@ -1336,7 +1336,7 @@ namespace ELFT
 		 * If the reference database is already loaded when this method
 		 * is called, this method shall return immediately.
 		 *
- 		 * @note
+		 * @note
 		 * This method need not be threadsafe. It may use more than one
 		 * thread.
 		 *
@@ -1473,10 +1473,10 @@ namespace ELFT
 		 * Do **not** load your reference database into memory on
 		 * construction. Instead, wait for a call to load().
 		 * @warning
-		 * It is possible that #databaseDirectory does not exist when
+		 * It is possible that `databaseDirectory` does not exist when
 		 * this function is called, but it will exist before load() is
 		 * called. Do **not** emit errors based on the contents of
-		 * #databaseDirectory from this function. This is necessary to
+		 * `databaseDirectory` from this function. This is necessary to
 		 * call getIdentification() prior to creating an enrollment
 		 * database.
 		 *
diff --git a/elft_1_x/validation/VERSION b/elft_1_x/validation/VERSION
index c9ecb50..4fb9dc6 100644
--- a/elft_1_x/validation/VERSION
+++ b/elft_1_x/validation/VERSION
@@ -1 +1 @@
-202304051521
+202310021440
diff --git a/elft_1_x/validation/src/elft_validation_data.h b/elft_1_x/validation/src/elft_validation_data.h
index f21bd48..5dadfdf 100644
--- a/elft_1_x/validation/src/elft_validation_data.h
+++ b/elft_1_x/validation/src/elft_validation_data.h
@@ -2117,6 +2117,24 @@ namespace ELFT::Validation::Data
 	        }
 	    }}},
 
+	    /*
+	     * Nonsensical images
+	     */
+	    {"solid_0_500x500-probe", {
+	        {"solid_0_500x500.gray", 500, 500, 500, 8, 8, {}}}},
+	    {"solid_128_500x500-probe", {
+	        {"solid_128_500x500.gray", 500, 500, 500, 8, 8, {}}}},
+	    {"solid_250_500x500-probe", {
+	        {"solid_250_500x500.gray", 500, 500, 500, 8, 8, {}}}},
+	    {"solid_255_500x500-probe", {
+	        {"solid_255_500x500.gray", 500, 500, 500, 8, 8, {}}}},
+	    {"fd249-probe", {
+	        {"fd249_500x500.gray", 500, 500, 500, 8, 8, {}}}},
+	    {"gradient-probe", {
+	        {"gradient_500x500.gray", 500, 500, 500, 8, 8, {}}}},
+	    {"random-probe", {
+	        {"random_500x500.gray", 500, 500, 500, 8, 8, {}}}},
+
 	};
 
 	/** Images to be made into reference templates. */
@@ -5664,7 +5682,26 @@ namespace ELFT::Validation::Data
 	            FrictionRidgeCaptureTechnology::OpticalTIRBright,
 	            FrictionRidgeGeneralizedPosition::RightFour,
 	            {}, {}, ValueAssessment::Value}}}
-	    }
+	    },
+
+	    /*
+	     * Nonsensical images
+	     */
+	    {"solid_0_500x500-ref", {
+	        {"solid_0_500x500.gray", 500, 500, 500, 8, 8, {}}}},
+	    {"solid_128_500x500-ref", {
+	        {"solid_128_500x500.gray", 500, 500, 500, 8, 8, {}}}},
+	    {"solid_250_500x500-ref", {
+	        {"solid_250_500x500.gray", 500, 500, 500, 8, 8, {}}}},
+	    {"solid_255_500x500-ref", {
+	        {"solid_255_500x500.gray", 500, 500, 500, 8, 8, {}}}},
+	    {"fd249-ref", {
+	        {"fd249_500x500.gray", 500, 500, 500, 8, 8, {}}}},
+	    {"gradient-ref", {
+	        {"gradient_500x500.gray", 500, 500, 500, 8, 8, {}}}},
+	    {"random-ref", {
+	        {"random_500x500.gray", 500, 500, 500, 8, 8, {}}}},
+
 	};
 }
 
diff --git a/elft_1_x/validation/validate b/elft_1_x/validation/validate
index bc73e37..4c0c75b 100755
--- a/elft_1_x/validation/validate
+++ b/elft_1_x/validation/validate
@@ -713,7 +713,7 @@ check_validation_version()
 check_image_versions()
 {
 	# Version of image dataset compatible with this script
-	local expected_image_version="202103120958"
+	local expected_image_version="202310021336"
 
 	echo -n "Checking validation image versions... "
 
@@ -1091,10 +1091,10 @@ compile()
 
 	declare -A md5s
 	md5s["../libelft/libelft.cpp"]="b7105274543b422e51c656d8db36b165"
-	md5s["../include/elft.h"]="fc66e34adc54b5b2fc78f62d1ea4191e"
+	md5s["../include/elft.h"]="ce24b0938194e063719c3c8f10828005"
 	md5s["src/elft_validation.cpp"]="973915d876b71e77afba122cf5d492bd"
 	md5s["src/elft_validation.h"]="c27629ef53a2f86874fe7b89de301d49"
-	md5s["src/elft_validation_data.h"]="e2d931dc343a149f0f6ab409b83f611f"
+	md5s["src/elft_validation_data.h"]="6ed6a603ceb0f0b206c13b207265d353"
 	md5s["src/elft_validation_utils.h"]="1608f980123e57619d92370feddf9225"
 
 	# Check checksums
@@ -1146,6 +1146,19 @@ compile()
 		fail "${msg}"
 	fi
 
+	# Suspected non libraries in library directory
+	local non_libs
+	non_libs="$(find "${local_lib_dir}" \! -name "lib*" -a \! \
+	    -name README | wc -l)"
+	if [ "${non_libs}" -gt 0 ]; then
+		local msg="You have files in ${local_lib_dir} that don't "
+		msg+="appear to be libraries. That's fine, but are you sure "
+		msg+="they don't belong in \"${local_config_dir}\" instead?"
+
+		warn "${msg}"
+		echo -n "Still building... "
+	fi
+
 	# Catch the case of hardcoding "../lib", etc. into library by always
 	# linking against libs in a different directory
 	local tmp_dir
@@ -1232,15 +1245,42 @@ compile()
 	local num_libs
 	num_libs="$(find "${lib_dir}" -name "lib*" -type f | wc -l)"
 	if [ "${num_libs}" -gt 2 ]; then
-		if ! readelf -d "${lib_dir}/${core_lib}" | \
-		    grep RUNPATH | grep "\$ORIGIN" > /dev/null
+		# RUNPATH preferred over RPATH
+		local uses_rpath=0
+		if readelf -d "${lib_dir}/${core_lib}" | grep -q RPATH; then
+			uses_rpath=1
+		fi
+		if [ "${uses_rpath}" == "1" ]; then
+			local msg="You are setting RPATH, but RUNPATH is "
+			msg+="preferred for new development. Please consider "
+			msg+="setting RUNPATH instead of RPATH."
+
+			warn "${msg}"
+			echo -n "Still building... "
+		fi
+
+		# Check for $ORIGIN in both RPATH and RUNPATH
+		local origin_in_rpath=0
+		if [ "${uses_rpath}" == "1" ]; then
+			if readelf -d "${lib_dir}/${core_lib}" | \
+			    grep RPATH | grep "\$ORIGIN" > /dev/null; then
+				origin_in_rpath=1
+			fi
+		fi
+		local origin_in_runpath=0
+		if readelf -d "${lib_dir}/${core_lib}" | \
+		    grep RUNPATH | grep "\$ORIGIN" > /dev/null; then
+			origin_in_runpath=1
+		fi
+		if [ "${origin_in_rpath}" == "0" ] && \
+		    [ "${origin_in_runpath}" == "0" ]
 		then
 			local msg="You have supplied multiple libraries, but "
-			msg+="${core_lib} does not have an RUNPATH of \$ORIGIN."
-			msg+=" This may cause runtime issues, because the "
+			msg+="${core_lib} does not have a RUNPATH of \$ORIGIN. "
+			msg+="This may cause runtime issues, because the "
 			msg+="location of libraries on NIST's systems will not "
 			msg+="be laid out the same as in this validation "
-			msg+="package and the only library explicitly linked "
+			msg+="package, and the only library explicitly linked "
 			msg+="will be ${core_lib}."
 
 			warn "${msg}"
@@ -1260,19 +1300,6 @@ compile()
 		fi
 	done < <(find "${lib_dir}" -type f -name "lib*")
 
-	# Suspected non libraries in library directory
-	local non_libs
-	non_libs="$(find "${local_lib_dir}" \! -name "lib*" -a \! \
-	    -name README | wc -l)"
-	if [ "${non_libs}" -gt 0 ]; then
-		local msg="You have files in ${local_lib_dir} that don't "
-		msg+="appear to be libraries. That's fine, but are you sure "
-		msg+="they don't belong in \"${local_config_dir}\" instead?"
-
-		warn "${msg}"
-		echo -n "Still building... "
-	fi
-
 	# Log some extra compilation information that may be useful in helping
 	# to debug future issues
 	{
@@ -1369,7 +1396,7 @@ clean_previous_attempts()
 
 	find /tmp -maxdepth 1 -type d -name 'elft_libs.*' -exec rm -rf {} \;
 	find /tmp -maxdepth 1 -type d -name 'elft_configs.*' \
-	    -exec chmod +w {} \;
+	    -exec chmod -R +w {} \;
 	find /tmp -maxdepth 1 -type d -name 'elft_configs.*' -exec rm -rf {} \;
 	find /tmp -maxdepth 1 -type d -name 'elft_validation_build.*' \
 	    -exec rm -rf {} \;
@@ -1741,6 +1768,21 @@ check_search_candidates()
 	local too_many=0
 	local neg_sim=0
 	local candidate_log="${driver_output_dir}/searchCandidates.log"
+
+	if ! check_counts "$(basename "${candidate_log}" .log)"; then
+		local msg="Incorrect number of lines in search log. Please "
+		msg+="review: "
+		fail "${msg}" "$(rp "${candidate_log}")"
+	fi
+
+	local num_probes=0
+	num_probes=$(cut -f 1 -d ',' "${candidate_log}" | sort | uniq | wc -l)
+	if [ "${num_probes}" -ne "125" ]; then
+		local msg="Incorrect number of probes in search log. Please "
+		msg+="review: "
+		fail "${msg}" "$(rp "${candidate_log}")"
+	fi
+
 	while read -r line; do
 		read -r max_candidates result num_candidates rank \
 		    similarity <<< "$(cut -f 2,4,7,8,11 -d ',' \
@@ -1813,14 +1855,23 @@ check_counts()
 	local log_key="${1}"
 
 	declare -A counts
-	counts["extractionCreate-0"]=117
-	counts["extractionCreate-1"]=55
+	declare -A comparators
+	counts["extractionCreate-0"]=124
+	comparators["extractionCreate-0"]="eq"
+	counts["extractionCreate-1"]=62
+	comparators["extractionCreate-1"]="eq"
+	counts["searchCandidates"]=124
+	comparators["searchCandidates"]="ge"
 
 	# Not all logs have an expected number of lines
 	local expected="${counts["${log_key}"]}"
 	if [ "${expected}" == "" ]; then
 		return 0
 	fi
+	local comparator="${comparators["${log_key}"]}"
+	if [ "${comparator}" == "" ]; then
+		fail "NIST error in check_counts"
+	fi
 
 	local actual
 	if ! actual="$(num_lines_in_file "${log}")"; then
@@ -1829,10 +1880,26 @@ check_counts()
 	# Remove header
 	actual=$(( actual - 1 ))
 
-	if [ "${expected}" -eq "${actual}" ]; then
-		return 0
+	if [ "${comparator}" == "eq" ]; then
+		if [ "${actual}" -eq "${expected}" ]; then
+			return 0
+		else
+			return 1
+		fi
+	elif [ "${comparator}" == "ge" ]; then
+		if [ "${actual}" -ge "${expected}" ]; then
+			return 0
+		else
+			return 1
+		fi
+	elif [ "${comparator}" == "le" ]; then
+		if [ "${actual}" -le "${expected}" ]; then
+			return 0
+		else
+			return 1
+		fi
 	else
-		return 1
+		fail "NIST error in check_counts"
 	fi
 }