From 21443591d5002068154e598d88e5003bf3df62e1 Mon Sep 17 00:00:00 2001
From: Dang Nguyen <dang.nguyen@quoine.com>
Date: Tue, 5 Mar 2019 11:44:45 +0700
Subject: [PATCH] lib/transaction: backward 5 minutes

---
 lib/transaction/transaction.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/transaction/transaction.js b/lib/transaction/transaction.js
index 6f21ad946..511add525 100644
--- a/lib/transaction/transaction.js
+++ b/lib/transaction/transaction.js
@@ -315,7 +315,8 @@ Transaction.prototype.toBufferWriter = function(writer, noWitness) {
     writer.write(new Buffer('0001', 'hex'));
   }
 
-  writer.writeInt32LE(Math.round(new Date().getTime()/1000));
+  // backward 5 minutes to ensure timestamp not bigger than latest block in crypto node
+  writer.writeInt32LE(Math.round(new Date().getTime()/1000 - 5*60)); 
 
   writer.writeVarintNum(this.inputs.length);