diff --git a/rustfs/src/connect/diagnostics/job.rs b/rustfs/src/connect/diagnostics/job.rs
index a59040d96..8e427d4f2 100644
--- a/rustfs/src/connect/diagnostics/job.rs
+++ b/rustfs/src/connect/diagnostics/job.rs
@@ -37,7 +37,7 @@ use super::{
     ProfileProvenance, TOP_API_CAPABILITY, TOP_CLASSIFICATION, TOP_LOCKS_CAPABILITY, TOP_SCHEMA_VERSION, TopApiOperation,
     TopCaptureLimits, TopCaptureRequest, TopCaptureScope, TopOutcome, capture_cpu_profile, capture_top_api, capture_top_locks,
     encode_signed_profile_export, measure_drive, measure_network, runtime_network_peer_aliases, sign_drive_export,
-    sign_network_export, sign_top_export,
+    sign_network_export, sign_top_export, sign_top_export_with_nonce,
 };
 use crate::connect::DeviceIdentity;
 
@@ -505,7 +505,7 @@ pub async fn execute_diagnostic_job(
         DiagnosticJobKind::PerformanceNetwork => {
             execute_performance_network_job(envelope, nonce, identity, provenance, cancel).await
         }
-        DiagnosticJobKind::TopApi => execute_top_api_job(envelope, identity, provenance, cancel).await,
+        DiagnosticJobKind::TopApi => execute_top_api_job(envelope, nonce, identity, provenance, cancel).await,
         DiagnosticJobKind::TopLocks => execute_top_locks_job(envelope, identity, provenance, cancel).await,
     }
 }
@@ -765,6 +765,7 @@ async fn execute_profile_cpu_job(
 
 async fn execute_top_api_job(
     envelope: DiagnosticJobEnvelope,
+    nonce: [u8; 32],
     identity: &DeviceIdentity,
     provenance: ProfileProvenance,
     cancel: &CancellationToken,
@@ -814,7 +815,7 @@ async fn execute_top_api_job(
             artifact_bytes: None,
         });
     }
-    let export = sign_top_export(&request, &result, identity, cancel).map_err(top_export_failure)?;
+    let export = sign_top_export_with_nonce(&request, &result, identity, cancel, nonce).map_err(top_export_failure)?;
     if export.archive_bytes.len() > usize::try_from(envelope.limits.max_output_bytes).unwrap_or(usize::MAX) {
         return Err(DiagnosticJobError::LimitExceeded);
     }
diff --git a/rustfs/src/connect/diagnostics/mod.rs b/rustfs/src/connect/diagnostics/mod.rs
index af579fdd6..b7172ae72 100644
--- a/rustfs/src/connect/diagnostics/mod.rs
+++ b/rustfs/src/connect/diagnostics/mod.rs
@@ -135,6 +135,7 @@ pub use schedule::{
     DiagnosticCollectionPolicy, DiagnosticReceipt, DiagnosticScheduleError, DiagnosticScheduleRuntime, DiagnosticScheduleStatus,
     ReceiptOutcome, run_local_environment_once, spawn_environment_schedule,
 };
+pub(crate) use top_api::sign_top_export_with_nonce;
 pub use top_api::{
     LocalTopConsent, MAX_TOP_DURATION, MAX_TOP_EXPORT_VALIDITY, SavedTopExport, SignedTopExport, TOP_API_CAPABILITY,
     TOP_CLASSIFICATION, TOP_SCHEMA_VERSION, TopApiData, TopApiOperation, TopCaptureError, TopCaptureLimits, TopCaptureRequest,
diff --git a/rustfs/src/connect/diagnostics/top_api.rs b/rustfs/src/connect/diagnostics/top_api.rs
index 7f2700886..c89017e39 100644
--- a/rustfs/src/connect/diagnostics/top_api.rs
+++ b/rustfs/src/connect/diagnostics/top_api.rs
@@ -454,6 +454,26 @@ pub fn sign_top_export<T: Serialize>(
     result: &TopResult<T>,
     identity: &DeviceIdentity,
     cancel: &CancellationToken,
+) -> Result<SignedTopExport, TopCaptureError> {
+    sign_top_export_inner(request, result, identity, cancel, None)
+}
+
+pub(crate) fn sign_top_export_with_nonce<T: Serialize>(
+    request: &TopCaptureRequest,
+    result: &TopResult<T>,
+    identity: &DeviceIdentity,
+    cancel: &CancellationToken,
+    nonce: [u8; 32],
+) -> Result<SignedTopExport, TopCaptureError> {
+    sign_top_export_inner(request, result, identity, cancel, Some(nonce))
+}
+
+fn sign_top_export_inner<T: Serialize>(
+    request: &TopCaptureRequest,
+    result: &TopResult<T>,
+    identity: &DeviceIdentity,
+    cancel: &CancellationToken,
+    supplied_nonce: Option<[u8; 32]>,
 ) -> Result<SignedTopExport, TopCaptureError> {
     if !matches!(result.tool_id, "top.api" | "top.disk" | "top.locks" | "top.net" | "top.rpc") {
         return Err(TopCaptureError::Result);
@@ -495,8 +515,13 @@ pub fn sign_top_export<T: Serialize>(
         return Err(TopCaptureError::Expired);
     }
 
-    let mut nonce = [0u8; 32];
-    SysRng.try_fill_bytes(&mut nonce).map_err(|_| TopCaptureError::Random)?;
+    let nonce = if let Some(nonce) = supplied_nonce {
+        nonce
+    } else {
+        let mut nonce = [0u8; 32];
+        SysRng.try_fill_bytes(&mut nonce).map_err(|_| TopCaptureError::Random)?;
+        nonce
+    };
     let device_key_id = hex_lower(&Sha256::digest(identity.public_key_der()));
     let envelope = DiagnosticEnvelope {
         format_version: ENVELOPE_FORMAT,
@@ -1046,7 +1071,7 @@ mod tests {
 
         let result = capture.await.expect("capture task").expect("top.api result");
         assert_eq!(result.outcome, TopOutcome::Succeeded);
-        let data = result.data.expect("successful capture data");
+        let data = result.data.as_ref().expect("successful capture data");
         assert_eq!(data.operation, TopApiOperation::GetObject);
         assert_eq!(data.request_count, 2);
         assert_eq!(data.error_count, 1);
@@ -1062,6 +1087,11 @@ mod tests {
                 "windowMillis"
             ]
         );
+        let nonce = [7_u8; 32];
+        let export = sign_top_export_with_nonce(&request, &result, &DeviceIdentity::generate(), &CancellationToken::new(), nonce)
+            .expect("signed top.api export");
+        let envelope: serde_json::Value = serde_json::from_slice(&export.envelope_json).expect("diagnostic envelope");
+        assert_eq!(envelope["nonce"], URL_SAFE_NO_PAD.encode_to_string(nonce));
     }
 
     #[tokio::test]