diff --git a/src/controllers/chain.controller.ts b/src/controllers/chain.controller.ts
index db349dc..67ebaa3 100644
--- a/src/controllers/chain.controller.ts
+++ b/src/controllers/chain.controller.ts
@@ -25,6 +25,9 @@ export default class ChainController extends BaseController {
   async preClaimUsdt(req: FastifyRequest) {
     new SyncLocker().checkLock(req);
     let user = req.user;
+    if (user.address) {
+      throw new ZError(11, 'no address')
+    }
     const minClaimNum = +process.env.MINI_CLAIM_USDT
     const record = await ActivityItem.findOne({user: user.id, activity: user.activity, item: 'usdt'})
     if (!record || record.amount < minClaimNum) {
@@ -34,8 +37,8 @@ export default class ChainController extends BaseController {
     record.amount = 0;
     await record.save()
     const token = process.env.USDT_CONTRACT;
-    await TokenClaimHistory.addOne({user: user.id, activity: user.activity, token, amount})
-    const res = await sign({user: user.address, token, amount})
+    const history = await TokenClaimHistory.addOne({user: user.id, activity: user.activity, address: user.address, token, amount})
+    const res = await sign({user: user.address, token, amount, saltNonce: history.id})
     return res
   }
 }
\ No newline at end of file
diff --git a/src/models/ActivityInfo.ts b/src/models/ActivityInfo.ts
index c12f057..726c04b 100644
--- a/src/models/ActivityInfo.ts
+++ b/src/models/ActivityInfo.ts
@@ -58,10 +58,10 @@ export class TaskCfg {
     if (this.end) {
       let end = new Date(this.end).getTime()
       if (now > end) {
-        return false
+        return true
       }
     }
-    return true
+    return false
   }
 
   public isVaild() {
@@ -96,7 +96,7 @@ class ActivityInfoClass extends BaseModule {
   @prop()
   public comment?: string
 
-  public isValie() {
+  public isVaild() {
     const now = Date.now()
     if (this.startTime) {
       if (now < this.startTime) {
diff --git a/src/models/TokenClaimHistory.ts b/src/models/TokenClaimHistory.ts
index 17055e8..7e88758 100644
--- a/src/models/TokenClaimHistory.ts
+++ b/src/models/TokenClaimHistory.ts
@@ -14,6 +14,11 @@ class TokenClaimHistoryClass extends BaseModule {
 
   @prop({ required: true})
   public activity: string
+  /**
+   * 冗余字段, 方便查找
+   */
+  @prop()
+  public address: string
 
   @prop()
   public token: string