diff --git a/firstleg/src/main/java/com/baiyue/firstleg/dto/LoadingPickDtos.java b/firstleg/src/main/java/com/baiyue/firstleg/dto/LoadingPickDtos.java
index a888e52b7..75edd385a 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/dto/LoadingPickDtos.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/dto/LoadingPickDtos.java
@@ -125,7 +125,8 @@ public final class LoadingPickDtos {
                             Long operatorId, String operatorName, LocalDateTime createdAt) {
     }
 
-    public record Task(Long id, Long loadingPlanId, Long containerBookingId, String cabinetNo,
+    public record Task(Long id, Long loadingPlanId, Long containerBookingId, Long inboundId,
+                       Integer inboundVersion, Integer loadingVersion, String cabinetNo,
                        String currentContainerNo, String taskStatus,
                        String workflowStatus, Integer version, Assignment assignment,
                        Review review, List<PickItem> items) {
diff --git a/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingPickService.java b/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingPickService.java
index 113d16681..75818b687 100644
--- a/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingPickService.java
+++ b/firstleg/src/main/java/com/baiyue/firstleg/service/LoadingPickService.java
@@ -578,7 +578,16 @@ public class LoadingPickService {
             : assigned == null ? "UNASSIGNED"
             : repository.allTaskItemsResolved(task.getId()) ? "AWAITING_REVIEW" : "IN_PROGRESS";
         var booking = smartLoadingRepository.booking(task.getContainerBookingId());
-        return new Task(task.getId(), task.getLoadingPlanId(), task.getContainerBookingId(), task.getCabinetNo(),
+        var owners = repository.inboundOwners(task.getId());
+        Long detailInboundId = source.isEmpty() ? null : source.get(0).getInboundId();
+        var owner = detailInboundId == null ? null : owners.stream()
+            .filter(value -> detailInboundId.equals(value.inboundId())).findFirst().orElse(null);
+        var inbound = owner == null || owner.tenantId() == null || owner.inboundId() == null
+            ? null : repository.inbound(owner.tenantId(), owner.inboundId());
+        var plan = smartLoadingRepository.plan(task.getLoadingPlanId());
+        return new Task(task.getId(), task.getLoadingPlanId(), task.getContainerBookingId(),
+            owner == null ? null : owner.inboundId(), inbound == null ? null : inbound.version(),
+            plan == null ? null : plan.getVersion(), task.getCabinetNo(),
             booking == null ? null : booking.getContainerNo(), task.getTaskStatus(),
             workflowStatus, task.getVersion(), assignment, review, items);
     }
diff --git a/firstleg/src/main/resources/openapi/phase3-pda-convergence-v1.yaml b/firstleg/src/main/resources/openapi/phase3-pda-convergence-v1.yaml
index 3a7ddcd3f..cbbc5361e 100644
--- a/firstleg/src/main/resources/openapi/phase3-pda-convergence-v1.yaml
+++ b/firstleg/src/main/resources/openapi/phase3-pda-convergence-v1.yaml
@@ -124,11 +124,14 @@ components:
   schemas:
     Task:
       type: object
-      required: [id, loadingPlanId, containerBookingId, cabinetNo, taskStatus, workflowStatus, version, items]
+      required: [id, loadingPlanId, containerBookingId, inboundId, inboundVersion, loadingVersion, cabinetNo, taskStatus, workflowStatus, version, items]
       properties:
         id: {type: integer, format: int64}
         loadingPlanId: {type: integer, format: int64}
         containerBookingId: {type: integer, format: int64}
+        inboundId: {type: integer, format: int64, description: Stable inbound identity selected from the task item; evidence identity is taskId+inboundId+loadingPlanId+containerBookingId}
+        inboundVersion: {type: integer, minimum: 0, description: Current fl_inbound_order.version for inboundId; never inferred from PDA task version}
+        loadingVersion: {type: integer, minimum: 0, description: Current fl_loading_plan.version for loadingPlanId; used as the loading/evidence concurrency snapshot}
         cabinetNo: {type: string}
         currentContainerNo: {type: string, nullable: true, description: Mutable transport display field; changing it never resynchronizes the task or item versions and it is never task identity}
         taskStatus: {type: string, enum: [LOADING, COMPLETED]}
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/controller/PdaConvergenceOpenApiContractTest.java b/firstleg/src/test/java/com/baiyue/firstleg/controller/PdaConvergenceOpenApiContractTest.java
index ff275fe86..36b97fa8c 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/controller/PdaConvergenceOpenApiContractTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/controller/PdaConvergenceOpenApiContractTest.java
@@ -33,6 +33,9 @@ class PdaConvergenceOpenApiContractTest {
             .contains("advances every associated inbound from WAIT_SPLIT to LOADING with optimistic locking")
             .contains("workflowStatus may later become AWAITING_REVIEW")
             .contains("without using containerNo as an association key")
+            .contains("evidence identity is taskId+inboundId+loadingPlanId+containerBookingId")
+            .contains("Current fl_inbound_order.version for inboundId")
+            .contains("Current fl_loading_plan.version for loadingPlanId")
             .contains("CompleteLoadingRequest");
 
         String taskLookup = yaml.substring(
diff --git a/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingPickServiceTest.java b/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingPickServiceTest.java
index cdb85a3fe..54e07def4 100644
--- a/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingPickServiceTest.java
+++ b/firstleg/src/test/java/com/baiyue/firstleg/service/LoadingPickServiceTest.java
@@ -229,6 +229,32 @@ class LoadingPickServiceTest {
         verify(inboundHistories, never()).insert(any(InboundStatusHistoryEntity.class));
     }
 
+    @Test
+    void taskDetailReturnsServerInboundAndLoadingVersions() {
+        LoadingPickTaskEntity task = task();
+        when(repository.task(20L)).thenReturn(task);
+        when(repository.items(20L, 101L)).thenReturn(List.of(item()));
+        when(repository.cartonLabels(20L)).thenReturn(List.of());
+        when(repository.assignment(20L)).thenReturn(null);
+        when(repository.review(20L)).thenReturn(null);
+        when(repository.allTaskItemsResolved(20L)).thenReturn(false);
+        when(repository.inboundOwners(20L)).thenReturn(List.of(
+            new LoadingPickItemMapper.InboundOwner(101L, 50L)));
+        when(repository.inbound(101L, 50L)).thenReturn(
+            new LoadingInboundMapper.Snapshot(50L, 101L, "LOADING", 7));
+        var plan = new com.baiyue.firstleg.entity.LoadingPlanEntity();
+        plan.setId(10L); plan.setVersion(11);
+        when(smartLoadingRepository.plan(10L)).thenReturn(plan);
+
+        var result = service.task(20L, 101L);
+
+        assertThat(result.inboundId()).isEqualTo(50L);
+        assertThat(result.inboundVersion()).isEqualTo(7);
+        assertThat(result.loadingVersion()).isEqualTo(11);
+        assertThat(result.loadingPlanId()).isEqualTo(10L);
+        assertThat(result.containerBookingId()).isEqualTo(99L);
+    }
+
     @Test
     void claimStartsLoadingAndSameOperatorReentryDoesNotDuplicateStartHistory() {
         LoadingPickTaskEntity task = task();