diff --git a/examples/integration-scripts/singlesig-dip.test.ts b/examples/integration-scripts/singlesig-dip.test.ts
index 626b494d..857f1e99 100644
--- a/examples/integration-scripts/singlesig-dip.test.ts
+++ b/examples/integration-scripts/singlesig-dip.test.ts
@@ -41,6 +41,7 @@ describe('singlesig-dip', () => {
         result = await client1.identifiers().interact('name1', seal);
         let op1 = await result.op();
 
+        // refresh keystate to sn=1
         let op2 = await client2.keyStates().query(name1_id, '1');
 
         await Promise.all([
@@ -74,7 +75,8 @@ describe('singlesig-dip', () => {
         result = await client1.identifiers().interact('name1', seal);
         op1 = await result.op();
 
-        op2 = await client2.keyStates().query(name1_id, '2');
+        // refresh keystate to seal event
+        op2 = await client2.keyStates().query(name1_id, undefined, seal);
 
         await Promise.all([
             (op = await waitOperation(client2, op)),
@@ -85,5 +87,9 @@ describe('singlesig-dip', () => {
         // delegate waits for completion
         delegate2 = await client2.identifiers().get('delegate2');
         expect(delegate2.prefix).toEqual(op.response.i);
+
+        // make sure query with seal is idempotent
+        op = await client2.keyStates().query(name1_id, undefined, seal);
+        await waitOperation(client2, op);
     });
 });
diff --git a/src/keri/app/coring.ts b/src/keri/app/coring.ts
index f96901ef..3cfce93e 100644
--- a/src/keri/app/coring.ts
+++ b/src/keri/app/coring.ts
@@ -166,14 +166,14 @@ export class KeyStates {
     }
 
     /**
-     * Query the key state of an identifier for a given sequence number or anchor SAID
+     * Query the key state of an identifier for a given sequence number or anchor
      * @async
      * @param {string} pre Identifier prefix
      * @param {number} [sn] Optional sequence number
-     * @param {string} [anchor] Optional anchor SAID
+     * @param {any} [anchor] Optional anchor
      * @returns {Promise<any>} A promise to the long-running operation
      */
-    async query(pre: string, sn?: string, anchor?: string): Promise<any> {
+    async query(pre: string, sn?: string, anchor?: any): Promise<any> {
         const path = `/queries`;
         const data: any = {
             pre: pre,