diff --git a/lib/coins/coinview.js b/lib/coins/coinview.js
index f71b590d..0568fc01 100644
--- a/lib/coins/coinview.js
+++ b/lib/coins/coinview.js
@@ -107,18 +107,19 @@ CoinView.prototype.removeTX = function removeTX(tx, height) {
  */
 
 CoinView.prototype.addEntry = function addEntry(prevout, coin) {
-  let coins = this.get(prevout.hash);
+  let {hash, index} = prevout;
+  let coins = this.get(hash);
 
   if (!coins) {
     coins = new Coins();
-    this.add(prevout.hash, coins);
+    this.add(hash, coins);
   }
 
   if (coin.output.script.isUnspendable())
     return;
 
-  if (!coins.has(prevout.index))
-    coins.add(prevout.index, coin);
+  if (!coins.has(index))
+    coins.add(index, coin);
 
   return coins;
 };
@@ -129,17 +130,18 @@ CoinView.prototype.addEntry = function addEntry(prevout, coin) {
  */
 
 CoinView.prototype.addCoin = function addCoin(coin) {
-  let coins = this.get(coin.hash);
+  let {hash, index} = coin;
+  let coins = this.get(hash);
 
   if (!coins) {
     coins = new Coins();
-    this.add(coin.hash, coins);
+    this.add(hash, coins);
   }
 
   if (coin.script.isUnspendable())
     return;
 
-  if (!coins.has(coin.index))
+  if (!coins.has(index))
     coins.addCoin(coin);
 
   return coins;
@@ -152,18 +154,19 @@ CoinView.prototype.addCoin = function addCoin(coin) {
  */
 
 CoinView.prototype.addOutput = function addOutput(prevout, output) {
-  let coins = this.get(prevout.hash);
+  let {hash, index} = prevout;
+  let coins = this.get(hash);
 
   if (!coins) {
     coins = new Coins();
-    this.add(prevout.hash, coins);
+    this.add(hash, coins);
   }
 
   if (output.script.isUnspendable())
     return;
 
-  if (!coins.has(prevout.index))
-    coins.addOutput(prevout.index, output);
+  if (!coins.has(index))
+    coins.addOutput(index, output);
 };
 
 /**
@@ -173,13 +176,14 @@ CoinView.prototype.addOutput = function addOutput(prevout, output) {
  */
 
 CoinView.prototype.spendOutput = function spendOutput(prevout) {
-  let coins = this.get(prevout.hash);
+  let {hash, index} = prevout;
+  let coins = this.get(hash);
   let coin;
 
   if (!coins)
     return false;
 
-  coin = coins.spend(prevout.index);
+  coin = coins.spend(index);
 
   if (!coin)
     return false;
@@ -196,12 +200,13 @@ CoinView.prototype.spendOutput = function spendOutput(prevout) {
  */
 
 CoinView.prototype.removeOutput = function removeOutput(prevout) {
-  let coins = this.get(prevout.hash);
+  let {hash, index} = prevout;
+  let coins = this.get(hash);
 
   if (!coins)
     return false;
 
-  return coins.remove(prevout.index);
+  return coins.remove(index);
 };
 
 /**
@@ -211,12 +216,13 @@ CoinView.prototype.removeOutput = function removeOutput(prevout) {
  */
 
 CoinView.prototype.hasEntry = function hasEntry(prevout) {
-  let coins = this.get(prevout.hash);
+  let {hash, index} = prevout;
+  let coins = this.get(hash);
 
   if (!coins)
     return false;
 
-  return coins.has(prevout.index);
+  return coins.has(index);
 };
 
 /**
@@ -226,12 +232,13 @@ CoinView.prototype.hasEntry = function hasEntry(prevout) {
  */
 
 CoinView.prototype.getEntry = function getEntry(prevout) {
-  let coins = this.get(prevout.hash);
+  let {hash, index} = prevout;
+  let coins = this.get(hash);
 
   if (!coins)
     return;
 
-  return coins.get(prevout.index);
+  return coins.get(index);
 };
 
 /**
@@ -256,12 +263,13 @@ CoinView.prototype.getCoin = function getCoin(prevout) {
  */
 
 CoinView.prototype.getOutput = function getOutput(prevout) {
-  let coins = this.get(prevout.hash);
+  let {hash, index} = prevout;
+  let coins = this.get(hash);
 
   if (!coins)
     return;
 
-  return coins.getOutput(prevout.index);
+  return coins.getOutput(index);
 };
 
 /**