diff --git a/src/verifiers/documentStatus/didSigned/didSignedDocumentStatus.ts b/src/verifiers/documentStatus/didSigned/didSignedDocumentStatus.ts
index 284af98..4ca2a6c 100644
--- a/src/verifiers/documentStatus/didSigned/didSignedDocumentStatus.ts
+++ b/src/verifiers/documentStatus/didSigned/didSignedDocumentStatus.ts
@@ -341,7 +341,7 @@ const verifyV3 = async (
 };
 
 const verifyV4 = async (
-  document: SignedWrappedDocument<v4.OpenAttestationDocument>,
+  document: v4.SignedWrappedDocument<v4.OpenAttestationDocument>,
   options: VerifierOptions
 ): Promise<
   OpenAttestationDidSignedDocumentStatusValidFragmentV4 | OpenAttestationDidSignedDocumentStatusInvalidFragmentV4
@@ -359,25 +359,21 @@ const verifyV4 = async (
     })
   );
 
-  if (!document.credentialStatus?.credentialStatusType) {
-    throw new CodedError(
-      "credentialStatus (revocation) block not found for an issuer",
-      OpenAttestationDidSignedDocumentStatusCode.MISSING_REVOCATION,
-      "MISSING_REVOCATION"
-    );
-  }
-
   const issuedOnAll = verificationResult.issued;
 
   const getRevocationStatus = async (
-    docType: v4.CredentialStatusType,
-    location: string | undefined
+    credentialStatus: v4.OpenAttestationDocument["credentialStatus"]
   ): Promise<RevocationStatus> => {
-    switch (docType) {
-      case v4.CredentialStatusType.RevocationStore:
-        if (typeof location === "string") {
+    // No revocation type specified (i.e. an unrevocable document)
+    if (!credentialStatus) {
+      return { revoked: false };
+    }
+
+    switch (credentialStatus.type) {
+      case "OpenAttestationRevocationStore":
+        if (typeof credentialStatus.id === "string") {
           return isRevokedOnDocumentStore({
-            documentStore: location,
+            documentStore: credentialStatus.id,
             merkleRoot,
             targetHash,
             proofs,
@@ -389,13 +385,13 @@ const verifyV4 = async (
           OpenAttestationDidSignedDocumentStatusCode.REVOCATION_LOCATION_MISSING,
           "REVOCATION_LOCATION_MISSING"
         );
-      case v4.CredentialStatusType.OcspResponder:
-        if (typeof location === "string") {
+      case "OpenAttestationOcspResponder":
+        if (typeof credentialStatus.id === "string") {
           return isRevokedByOcspResponder({
             merkleRoot,
             targetHash,
             proofs,
-            location,
+            location: credentialStatus.id,
           });
         }
         throw new CodedError(
@@ -403,21 +399,16 @@ const verifyV4 = async (
           OpenAttestationDidSignedDocumentStatusCode.REVOCATION_LOCATION_MISSING,
           "REVOCATION_LOCATION_MISSING"
         );
-      case v4.CredentialStatusType.None:
-        return { revoked: false };
       default:
         throw new CodedError(
-          "revocation type not found for an issuer",
+          "unknown revocation type",
           OpenAttestationDidSignedDocumentStatusCode.UNRECOGNIZED_REVOCATION_TYPE,
           "UNRECOGNIZED_REVOCATION_TYPE"
         );
     }
   };
 
-  const revocationStatus = await getRevocationStatus(
-    document.credentialStatus.credentialStatusType,
-    document.credentialStatus.location
-  );
+  const revocationStatus = await getRevocationStatus(document.credentialStatus);
 
   const revokedOnAny = revocationStatus.revoked;
 
diff --git a/src/verifiers/issuerIdentity/dnsDid/dnsDidProof.ts b/src/verifiers/issuerIdentity/dnsDid/dnsDidProof.ts
index cbfe366..70b9398 100644
--- a/src/verifiers/issuerIdentity/dnsDid/dnsDidProof.ts
+++ b/src/verifiers/issuerIdentity/dnsDid/dnsDidProof.ts
@@ -35,7 +35,7 @@ const test: VerifierType["test"] = (document) => {
   } else if (utils.isSignedWrappedV3Document(document)) {
     return document.openAttestationMetadata.identityProof.type === v3.IdentityProofType.DNSDid;
   } else if (utils.isWrappedV4Document(document)) {
-    return document.issuer.identityProof.identityProofType === v4.IdentityProofType.DNSDid;
+    return document.issuer.identityProof.identityProofType === "DNS-DID";
   }
   return false;
 };
@@ -185,7 +185,7 @@ const verify: VerifierType["verify"] = async (document) => {
   else if (utils.isSignedWrappedV3Document(document)) return verifyV3(document);
   else if (utils.isSignedWrappedV4Document(document)) return verifyV4(document);
   throw new CodedError(
-    "Document does not match either v2 or v3 formats. Consider using `utils.diagnose` from open-attestation to find out more.",
+    "Document does not match either v2, v3 or v4 formats. Consider using `utils.diagnose` from open-attestation to find out more.",
     OpenAttestationDnsDidCode.UNRECOGNIZED_DOCUMENT,
     OpenAttestationDnsDidCode[OpenAttestationDnsDidCode.UNRECOGNIZED_DOCUMENT]
   );