diff --git a/lib/bcoin/input.js b/lib/bcoin/input.js
index 8e188cfd..eba0d476 100644
--- a/lib/bcoin/input.js
+++ b/lib/bcoin/input.js
@@ -438,25 +438,6 @@ Input.prototype.test = function test(addressMap) {
  */
 
 Input.prototype.inspect = function inspect() {
-  var coin;
-
-  if (this.coin) {
-    coin = this.coin;
-  } else {
-    coin = {
-      type: 'unknown',
-      version: 1,
-      height: -1,
-      value: '0.0',
-      script: '',
-      coinbase: false,
-      hash: this.prevout.hash,
-      index: this.prevout.index,
-      age: 0,
-      address: null
-    };
-  }
-
   return {
     type: this.getType(),
     subtype: this.getSubtype(),
@@ -467,7 +448,7 @@ Input.prototype.inspect = function inspect() {
     redeem: this.getRedeem(),
     sequence: this.sequence,
     prevout: this.prevout,
-    coin: coin
+    coin: this.coin
   };
 };
 
diff --git a/lib/bcoin/output.js b/lib/bcoin/output.js
index 59240c7f..d01c5a72 100644
--- a/lib/bcoin/output.js
+++ b/lib/bcoin/output.js
@@ -50,7 +50,10 @@ Output.prototype.fromOptions = function fromOptions(options, mutable) {
   assert(!mutable || options.value >= 0);
 
   this.mutable = !!mutable;
-  this.value = options.value || 0;
+
+  if (options.value)
+    this.value = options.value;
+
   if (options.script)
     this.script.fromOptions(options.script);
 
@@ -232,6 +235,7 @@ Output.prototype.isDust = function isDust(rate) {
  */
 
 Output.prototype.fromJSON = function fromJSON(json) {
+  assert(typeof json.value === 'string');
   this.value = utils.satoshi(json.value);
   this.script.fromJSON(json.script);
   return this;
diff --git a/lib/bcoin/protocol/packets.js b/lib/bcoin/protocol/packets.js
index 999dc81a..fc22610b 100644
--- a/lib/bcoin/protocol/packets.js
+++ b/lib/bcoin/protocol/packets.js
@@ -874,18 +874,24 @@ NetworkAddress.uid = 0;
 NetworkAddress.prototype.fromOptions = function fromOptions(options) {
   var host = options.host;
 
+  assert(typeof options.host === 'string');
+  assert(typeof options.port === 'number');
+
   if (IP.version(host) !== -1)
     host = IP.normalize(host);
 
-  assert(typeof options.host === 'string');
-  assert(typeof options.port === 'number');
-  assert(typeof options.services === 'number');
-  assert(typeof options.ts === 'number');
-
   this.host = host;
   this.port = options.port;
-  this.services = options.services;
-  this.ts = options.ts;
+
+  if (options.services) {
+    assert(typeof options.services === 'number');
+    this.services = options.services;
+  }
+
+  if (options.ts) {
+    assert(typeof options.ts === 'number');
+    this.ts = options.ts;
+  }
 
   return this;
 };