diff --git a/services/diddoc_service.go b/services/diddoc_service.go
index e349f622..15b4619c 100644
--- a/services/diddoc_service.go
+++ b/services/diddoc_service.go
@@ -5,6 +5,7 @@ import (
 	// jsonpb Marshaller is deprecated, but is needed because there's only one way to proto
 	// marshal in combination with our proto generator version
 	"encoding/json"
+	"fmt"
 	"strings"
 
 	cheqd "github.com/cheqd/cheqd-node/x/cheqd/types"
@@ -88,7 +89,7 @@ func (ds DIDDocService) MarshallContentStream(contentStream protoiface.MessageV1
 			ResourceType:      contentStream.Header.ResourceType,
 			MediaType:         contentStream.Header.MediaType,
 			Created:           contentStream.Header.Created,
-			Checksum:          contentStream.Header.Checksum,
+			Checksum:          fmt.Sprintf("%x", contentStream.Header.Checksum),
 			PreviousVersionId: contentStream.Header.PreviousVersionId,
 			NextVersionId:     contentStream.Header.NextVersionId,
 			Data:              contentStream.Data,
diff --git a/services/request_service_test.go b/services/request_service_test.go
index 1fad69a1..c1dead4b 100644
--- a/services/request_service_test.go
+++ b/services/request_service_test.go
@@ -221,7 +221,7 @@ func TestDereferencing(t *testing.T) {
 	validVerificationMethod := validVerificationMethod()
 	validService := validService()
 	validResource := validResource()
-	validChecksum, _ := json.Marshal(validResource.Header.Checksum)
+	validChecksum := fmt.Sprintf("%x", validResource.Header.Checksum)
 	validData, _ := json.Marshal(validResource.Data)
 	validMetadata := validMetadata()
 	validFragmentMetadata := types.NewResolutionDidDocMetadata(validDid, validMetadata, []*resource.ResourceHeader{})
@@ -269,7 +269,7 @@ func TestDereferencing(t *testing.T) {
 			ledgerService:     NewMockLedgerService(validDIDDoc, validMetadata, validResource),
 			dereferencingType: types.DIDJSONLD,
 			didUrl:            validDid + types.RESOURCE_PATH + validResourceId,
-			expectedContentStream: fmt.Sprintf("{\"@context\":[\"%s\"],\"collectionId\":\"%s\",\"id\":\"%s\",\"name\":\"%s\",\"resourceType\":\"%s\",\"mediaType\":\"%s\",\"checksum\":%s,\"data\":%s}",
+			expectedContentStream: fmt.Sprintf("{\"@context\":[\"%s\"],\"collectionId\":\"%s\",\"id\":\"%s\",\"name\":\"%s\",\"resourceType\":\"%s\",\"mediaType\":\"%s\",\"checksum\":\"%s\",\"data\":%s}",
 				types.DIDSchemaJSONLD, validResource.Header.CollectionId, validResource.Header.Id, validResource.Header.Name, validResource.Header.ResourceType, validResource.Header.MediaType, validChecksum, validData),
 			expectedMetadata: types.ResolutionDidDocMetadata{},
 			expectedError:    "",
diff --git a/types/dereferencing_content_stream.go b/types/dereferencing_content_stream.go
index c71ba40a..70c6a55b 100644
--- a/types/dereferencing_content_stream.go
+++ b/types/dereferencing_content_stream.go
@@ -8,7 +8,7 @@ type DereferencedResource struct {
 	ResourceType      string   `json:"resourceType,omitempty"`
 	MediaType         string   `json:"mediaType,omitempty"`
 	Created           string   `json:"created,omitempty"`
-	Checksum          []byte   `json:"checksum,omitempty"`
+	Checksum          string   `json:"checksum,omitempty"`
 	PreviousVersionId string   `json:"previousVersionId,omitempty"`
 	NextVersionId     string   `json:"nextVersionId,omitempty"`
 	Data              []byte   `json:"data,omitempty"`
diff --git a/types/did_doc_metadata.go b/types/did_doc_metadata.go
index 618ac70f..35ded6a0 100644
--- a/types/did_doc_metadata.go
+++ b/types/did_doc_metadata.go
@@ -1,6 +1,8 @@
 package types
 
 import (
+	"fmt"
+
 	cheqd "github.com/cheqd/cheqd-node/x/cheqd/types"
 	resource "github.com/cheqd/cheqd-node/x/resource/types"
 )
@@ -19,7 +21,7 @@ type ResourcePreview struct {
 	ResourceType      string `json:"resourceType,omitempty"`
 	MediaType         string `json:"mediaType,omitempty"`
 	Created           string `json:"created,omitempty"`
-	Checksum          []byte `json:"checksum,omitempty"`
+	Checksum          string `json:"checksum,omitempty"`
 	PreviousVersionId string `json:"previousVersionId,omitempty"`
 	NextVersionId     string `json:"nextVersionId,omitempty"`
 }
@@ -42,7 +44,7 @@ func NewResolutionDidDocMetadata(did string, metadata cheqd.Metadata, resources
 			r.ResourceType,
 			r.MediaType,
 			r.Created,
-			r.Checksum,
+			fmt.Sprintf("%x", r.Checksum),
 			r.PreviousVersionId,
 			r.NextVersionId,
 		}
diff --git a/types/did_doc_metadata_test.go b/types/did_doc_metadata_test.go
index 5b79bbf2..bfdb6bba 100644
--- a/types/did_doc_metadata_test.go
+++ b/types/did_doc_metadata_test.go
@@ -1,6 +1,7 @@
 package types
 
 import (
+	"fmt"
 	"testing"
 
 	cheqd "github.com/cheqd/cheqd-node/x/cheqd/types"
@@ -27,7 +28,7 @@ func TestNewResolutionDidDocMetadata(t *testing.T) {
 		ResourceType:      resourceHeader.ResourceType,
 		MediaType:         resourceHeader.MediaType,
 		Created:           resourceHeader.Created,
-		Checksum:          resourceHeader.Checksum,
+		Checksum:          fmt.Sprintf("%x", resourceHeader.Checksum),
 		PreviousVersionId: resourceHeader.PreviousVersionId,
 		NextVersionId:     resourceHeader.NextVersionId,
 	}