diff --git a/src/shacl2code/lang/jsonschema.py b/src/shacl2code/lang/jsonschema.py
index 295dd88d..32b7a503 100644
--- a/src/shacl2code/lang/jsonschema.py
+++ b/src/shacl2code/lang/jsonschema.py
@@ -29,6 +29,7 @@ def __init__(self, args):
             "schema_title": args.title,
             "schema_id": args.id,
             "allow_elided_lists": args.allow_elided_lists,
+            "jsf_signature": args.jsf_signature,
         }
 
     @classmethod
@@ -42,6 +43,11 @@ def get_arguments(cls, parser):
             action="store_true",
             help="Allow lists to be elided if they only contain a single element",
         )
+        parser.add_argument(
+            "--jsf-signature",
+            metavar="NAME",
+            help="Allow JSON Signature Format (JSF) property with name 'NAME'. Recommended name is 'signature'",
+        )
 
     def get_extra_env(self):
         return {
diff --git a/src/shacl2code/lang/templates/jsonschema.j2 b/src/shacl2code/lang/templates/jsonschema.j2
index a43ff374..594fc477 100644
--- a/src/shacl2code/lang/templates/jsonschema.j2
+++ b/src/shacl2code/lang/templates/jsonschema.j2
@@ -50,12 +50,24 @@
                     "$ref": "#/$defs/AnyClass",
                     "unevaluatedProperties": false
                 }
-            }
+            }{%- if jsf_signature %},
+            "{{ jsf_signature }}": {
+                "$ref": "#/$defs/JSF"
+            }{%- endif %}
         },
         "required": ["@graph"]
     },
     "else": {
-        "$ref": "#/$defs/AnyClass"
+        "allOf": [
+            {
+                "$ref": "#/$defs/AnyClass"
+            }{%- if jsf_signature %},
+            {
+                "properties": {
+                    "{{ jsf_signature }}": { "$ref": "#/$defs/JSF" }
+                }
+            }{%- endif %}
+        ]
     },
     "unevaluatedProperties": false,
 
@@ -328,6 +340,60 @@
                     }
                 }
             ]
+        },
+        "JSFSignature": {
+            "type": "object",
+            "properties": {
+                "algorithm": { "type": "string" },
+                "keyId": { "type": "string" },
+                "publicKey": {
+                    "type": "object",
+                    "properties": {
+                        "kty": { "type": "string" }
+                    },
+                    "required": [ "kty" ]
+                },
+                "certificatePath": {
+                    "type": "array",
+                    "items": { "type": "string" },
+                    "minCount": 1
+                },
+                "value": { "type": "string" }
+            },
+            "required": [
+                "algorithm",
+                "value"
+            ],
+            "additionalProperties": false
+        },
+        "JSF": {
+            "anyOf": [
+                { "$ref": "#/$defs/JSFSignature" },
+                {
+                    "type": "object",
+                    "properties": {
+                        "signers": {
+                            "type": "array",
+                            "items": { "$ref": "#/$defs/JSFSignature" },
+                            "minCount": 1
+                        }
+                    },
+                    "required": ["signers"],
+                    "additionalProperties": false
+                },
+                {
+                    "type": "object",
+                    "properties": {
+                        "chain": {
+                            "type": "array",
+                            "items": { "$ref": "#/$defs/JSFSignature" },
+                            "minCount": 1
+                        }
+                    },
+                    "required": ["chain"],
+                    "additionalProperties": false
+                }
+            ]
         }
     }
 }