diff --git a/lib/blockchain/chainentry.js b/lib/blockchain/chainentry.js
index 737e8c2c..832d5481 100644
--- a/lib/blockchain/chainentry.js
+++ b/lib/blockchain/chainentry.js
@@ -566,7 +566,9 @@ ChainEntry.prototype.toInv = function toInv() {
  */
 
 ChainEntry.prototype.inspect = function inspect() {
-  return this.toJSON();
+  var json = this.toJSON();
+  json.version = util.hex32(json.version);
+  return json;
 };
 
 /**
diff --git a/lib/mining/minerblock.js b/lib/mining/minerblock.js
index 3004f6ab..cfe2d7e4 100644
--- a/lib/mining/minerblock.js
+++ b/lib/mining/minerblock.js
@@ -461,7 +461,7 @@ MinerBlock.prototype.iterate = function iterate() {
  */
 
 MinerBlock.prototype.commit = function commit(nonce) {
-  var i, tx;
+  var i, j, tx, input;
 
   assert(!this.committed, 'Block is already committed.');
 
@@ -472,6 +472,12 @@ MinerBlock.prototype.commit = function commit(nonce) {
 
   for (i = 0; i < this.block.txs.length; i++) {
     tx = this.block.txs[i];
+
+    for (j = 0; j < tx.inputs.length; j++) {
+      input = tx.inputs[j];
+      input.coin = null;
+    }
+
     tx.setBlock(this.block, i);
   }
 };
diff --git a/lib/primitives/block.js b/lib/primitives/block.js
index f35e75cb..5d0c46d2 100644
--- a/lib/primitives/block.js
+++ b/lib/primitives/block.js
@@ -569,7 +569,7 @@ Block.prototype.inspect = function inspect() {
     size: this.getSize(),
     virtualSize: this.getVirtualSize(),
     date: util.date(this.ts),
-    version: this.version,
+    version: util.hex32(this.version),
     prevBlock: util.revHex(this.prevBlock),
     merkleRoot: util.revHex(this.merkleRoot),
     commitmentHash: this.commitmentHash
diff --git a/lib/primitives/headers.js b/lib/primitives/headers.js
index 5cfb35cc..7979f4bb 100644
--- a/lib/primitives/headers.js
+++ b/lib/primitives/headers.js
@@ -64,7 +64,7 @@ Headers.prototype.inspect = function inspect() {
     hash: this.rhash,
     height: this.height,
     date: util.date(this.ts),
-    version: this.version,
+    version: util.hex32(this.version),
     prevBlock: util.revHex(this.prevBlock),
     merkleRoot: util.revHex(this.merkleRoot),
     ts: this.ts,
diff --git a/lib/primitives/merkleblock.js b/lib/primitives/merkleblock.js
index f6aa4057..ca8431e7 100644
--- a/lib/primitives/merkleblock.js
+++ b/lib/primitives/merkleblock.js
@@ -321,7 +321,7 @@ MerkleBlock.prototype.inspect = function inspect() {
     hash: this.rhash,
     height: this.height,
     date: util.date(this.ts),
-    version: this.version,
+    version: util.hex32(this.version),
     prevBlock: util.revHex(this.prevBlock),
     merkleRoot: util.revHex(this.merkleRoot),
     ts: this.ts,
diff --git a/test/chain-test.js b/test/chain-test.js
index dc59f74e..d797a35a 100644
--- a/test/chain-test.js
+++ b/test/chain-test.js
@@ -13,7 +13,7 @@ var cob = co.cob;
 
 describe('Chain', function() {
   var chain, wallet, node, miner, walletdb;
-  var tip1, tip2, cb1, cb2;
+  var tip1, tip2, cb1, cb2, mineBlock;
 
   this.timeout(5000);
 
@@ -25,7 +25,7 @@ describe('Chain', function() {
   miner = node.miner;
   node.on('error', function() {});
 
-  var mineBlock = co(function* mineBlock(tip, tx) {
+  mineBlock = co(function* mineBlock(tip, tx) {
     var attempt = yield miner.createBlock(tip);
     var redeemer;
 
@@ -55,24 +55,6 @@ describe('Chain', function() {
     return yield attempt.mineAsync();
   });
 
-  function deleteCoins(tx) {
-    var i;
-
-    if (tx.txs) {
-      deleteCoins(tx.txs);
-      return;
-    }
-
-    if (Array.isArray(tx)) {
-      for (i = 0; i < tx.length; i++)
-        deleteCoins(tx[i]);
-      return;
-    }
-
-    for (i = 0; i < tx.inputs.length; i++)
-      tx.inputs[i].coin = null;
-  }
-
   it('should open chain and miner', cob(function* () {
     miner.mempool = null;
     constants.tx.COINBASE_MATURITY = 0;
@@ -101,10 +83,8 @@ describe('Chain', function() {
       block2 = yield mineBlock(tip2, cb2);
       cb2 = block2.txs[0];
 
-      deleteCoins(block1);
       yield chain.add(block1);
 
-      deleteCoins(block2);
       yield chain.add(block2);
 
       assert(chain.tip.hash === block1.hash('hex'));
@@ -147,8 +127,6 @@ describe('Chain', function() {
       forked = true;
     });
 
-    deleteCoins(block);
-
     yield chain.add(block);
 
     assert(forked);
@@ -175,7 +153,6 @@ describe('Chain', function() {
     var block = yield mineBlock(null, cb2);
     var entry, result;
 
-    deleteCoins(block);
     yield chain.add(block);
 
     entry = yield chain.db.getEntry(block.hash('hex'));
@@ -191,8 +168,6 @@ describe('Chain', function() {
     var tip = chain.tip;
     var err;
 
-    deleteCoins(block);
-
     try {
       yield chain.add(block);
     } catch (e) {
@@ -209,8 +184,6 @@ describe('Chain', function() {
     var tip = chain.tip;
     var err;
 
-    deleteCoins(block);
-
     try {
       yield chain.add(block);
     } catch (e) {