diff --git a/preston-serve/src/main/java/bio/guoda/preston/server/BadgeServlet.java b/preston-serve/src/main/java/bio/guoda/preston/server/BadgeServlet.java
index 2bed5f9a..85c02667 100644
--- a/preston-serve/src/main/java/bio/guoda/preston/server/BadgeServlet.java
+++ b/preston-serve/src/main/java/bio/guoda/preston/server/BadgeServlet.java
@@ -65,7 +65,7 @@ protected void handleRequest(HttpServletResponse response,
                 response.setStatus(HttpServletResponse.SC_NOT_FOUND);
                 log("found [" + requestedIdIRI.getIRIString() + "] but no associated content");
             } else {
-                populateReponseHeaderWithProvenanceGraphVersion(response, provInfo);
+                populateReponseHeaderWithProvenanceAnchor(response, getProvenanceId().getIRIString());
                 renderTemplate(
                         response,
                         URI.create(getResolverEndpoint() + requestedIdIRI.getIRIString()),
@@ -76,6 +76,7 @@ protected void handleRequest(HttpServletResponse response,
                 log("did not find origin of [" + requestedIdIRI.getIRIString() + "]");
             }
         } catch (Throwable th) {
+            populateReponseHeaderWithProvenanceAnchor(response, getProvenanceId().getIRIString());
             response.setStatus(HttpServletResponse.SC_NOT_FOUND);
             log("not found [" + requestedIdIRI.getIRIString() + "]");
             try {
diff --git a/preston-serve/src/main/java/bio/guoda/preston/server/RedirectingServlet.java b/preston-serve/src/main/java/bio/guoda/preston/server/RedirectingServlet.java
index f4585bef..36ae300b 100644
--- a/preston-serve/src/main/java/bio/guoda/preston/server/RedirectingServlet.java
+++ b/preston-serve/src/main/java/bio/guoda/preston/server/RedirectingServlet.java
@@ -36,6 +36,7 @@ public class RedirectingServlet extends HttpServlet {
     public static final String DOI = "doi";
     public static final String CONTENT_ID = "contentId";
     public static final String ACTIVITY = "activity";
+    public static final String X_PROV_HAD_PRIMARY_SOURCE = "X-PROV-hadPrimarySource";
 
     @Override
     public void destroy() {
@@ -126,9 +127,11 @@ protected void handleRequest(HttpServletResponse response,
                 populateResponseHeader(response, provInfo);
                 response.setStatus(HttpServletResponse.SC_NOT_FOUND);
             } else {
+                populateReponseHeaderWithProvenanceAnchor(response, getProvenanceId().getIRIString());
                 response.setStatus(HttpServletResponse.SC_NOT_FOUND);
             }
         } catch (Throwable th) {
+            populateReponseHeaderWithProvenanceAnchor(response, getProvenanceId().getIRIString());
             response.setStatus(HttpServletResponse.SC_NOT_FOUND);
             log("not found [" + requestedIdIRI.getIRIString() + "]");
             try {
@@ -169,11 +172,11 @@ protected void populateResponseHeader(HttpServletResponse response, Map<String,
         response.setHeader("X-PROV-wasGeneratedBy", provInfo.get(ACTIVITY));
         response.setHeader("X-PROV-generatedAtTime", provInfo.get(SEEN_AT));
         response.setHeader("X-DC-format", provInfo.get(CONTENT_TYPE));
-        populateReponseHeaderWithProvenanceGraphVersion(response, provInfo);
+        populateReponseHeaderWithProvenanceAnchor(response, provInfo.get(PROVENANCE_ID));
     }
 
-    protected void populateReponseHeaderWithProvenanceGraphVersion(HttpServletResponse response, Map<String, String> provInfo) {
-        response.setHeader("X-PROV-hadPrimarySource", provInfo.get(PROVENANCE_ID));
+    protected void populateReponseHeaderWithProvenanceAnchor(HttpServletResponse response, String provenanceAnchor) {
+        response.setHeader(X_PROV_HAD_PRIMARY_SOURCE, provenanceAnchor);
     }
 
     protected URI getResolverURI(String resolverEndpoint, String contentId) {
diff --git a/preston-serve/src/test/java/bio/guoda/preston/server/RedirectingServletIT.java b/preston-serve/src/test/java/bio/guoda/preston/server/RedirectingServletIT.java
index c69cab79..e3e76969 100644
--- a/preston-serve/src/test/java/bio/guoda/preston/server/RedirectingServletIT.java
+++ b/preston-serve/src/test/java/bio/guoda/preston/server/RedirectingServletIT.java
@@ -2,7 +2,14 @@
 
 import bio.guoda.preston.MimeTypes;
 import bio.guoda.preston.RefNodeFactory;
+import bio.guoda.preston.ResourcesHTTP;
 import org.apache.commons.rdf.api.IRI;
+import org.apache.http.Header;
+import org.apache.http.client.methods.CloseableHttpResponse;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.client.utils.HttpClientUtils;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.HttpClientBuilder;
 import org.hamcrest.core.Is;
 import org.junit.Test;
 
@@ -18,6 +25,7 @@
 import static bio.guoda.preston.server.RedirectingServlet.PROVENANCE_ID;
 import static bio.guoda.preston.server.RedirectingServlet.SEEN_AT;
 import static bio.guoda.preston.server.RedirectingServlet.UUID;
+import static bio.guoda.preston.server.RedirectingServlet.X_PROV_HAD_PRIMARY_SOURCE;
 import static org.hamcrest.CoreMatchers.nullValue;
 import static org.hamcrest.CoreMatchers.startsWith;
 import static org.hamcrest.MatcherAssert.assertThat;
@@ -77,6 +85,32 @@ public void dealiasUUID_iDigBio_EML() throws IOException, URISyntaxException {
         assertThat(contentId.get(CONTENT_TYPE), Is.is("application/eml"));
     }
 
+    @Test
+    public void dealiasNonExistentUUID_iDigBio_EML() throws IOException, URISyntaxException {
+        String anchor = "hash://sha256/5b7fa37bf8b64e7c935c4ff3389e36f8dd162f0705410dd719fd089e1ea253cd";
+
+        CloseableHttpClient build = HttpClientBuilder.create().build();
+        String nonExistentUUID = "urn:uuid:c9316f11-d955-4472-a276-6a26a6514599";
+        CloseableHttpResponse response = build.execute(new HttpGet("http://localhost:8080/" + nonExistentUUID));
+
+        Header firstHeader = response.getFirstHeader(X_PROV_HAD_PRIMARY_SOURCE);
+        assertThat(firstHeader.getName(), Is.is(X_PROV_HAD_PRIMARY_SOURCE));
+        assertThat(firstHeader.getValue(), Is.is("urn:uuid:0659a54f-b713-4f86-a917-5be166a14110"));
+    }
+
+    @Test
+    public void dealiasBadgeNonExistentUUID_iDigBio_EML() throws IOException, URISyntaxException {
+        String anchor = "hash://sha256/5b7fa37bf8b64e7c935c4ff3389e36f8dd162f0705410dd719fd089e1ea253cd";
+
+        CloseableHttpClient build = HttpClientBuilder.create().build();
+        String nonExistentUUID = "urn:uuid:c9316f11-d955-4472-a276-6a26a6514599";
+        CloseableHttpResponse response = build.execute(new HttpGet("http://localhost:8080/badge/" + nonExistentUUID));
+
+        Header firstHeader = response.getFirstHeader(X_PROV_HAD_PRIMARY_SOURCE);
+        assertThat(firstHeader.getName(), Is.is(X_PROV_HAD_PRIMARY_SOURCE));
+        assertThat(firstHeader.getValue(), Is.is("urn:uuid:0659a54f-b713-4f86-a917-5be166a14110"));
+    }
+
     @Test
     public void dealiasContentIdGBIF() throws IOException, URISyntaxException {
         Map<String, String> contentId = ProvUtil.findMostRecentContentId(