diff --git a/lib/bcoin/abstractblock.js b/lib/bcoin/abstractblock.js
index 4c4650fe..83bc782c 100644
--- a/lib/bcoin/abstractblock.js
+++ b/lib/bcoin/abstractblock.js
@@ -21,8 +21,7 @@ function AbstractBlock(data) {
   if (!(this instanceof AbstractBlock))
     return new AbstractBlock(data);
 
-  this.type = 'block';
-  this.subtype = null;
+  this.type = null;
   this.version = data.version;
   this.prevBlock = utils.toHex(data.prevBlock);
   this.merkleRoot = utils.toHex(data.merkleRoot);
diff --git a/lib/bcoin/block.js b/lib/bcoin/block.js
index 9a7e9600..74f3471a 100644
--- a/lib/bcoin/block.js
+++ b/lib/bcoin/block.js
@@ -24,7 +24,7 @@ function Block(data) {
 
   bcoin.abstractblock.call(this, data);
 
-  this.subtype = 'block';
+  this.type = 'block';
 
   this.txs = data.txs || [];
 
@@ -56,8 +56,6 @@ Block.prototype.getMerkleRoot = function getMerkleRoot() {
   var hashes = [];
   var i, root;
 
-  assert(this.subtype === 'block');
-
   for (i = 0; i < this.txs.length; i++)
     hashes.push(this.txs[i].hash());
 
@@ -226,8 +224,7 @@ Block.prototype.inspect = function inspect() {
 
 Block.prototype.toJSON = function toJSON() {
   return {
-    type: 'block',
-    subtype: this.subtype,
+    type: this.type,
     height: this.height,
     relayedBy: this.relayedBy,
     hash: utils.revHex(this.hash('hex')),
@@ -259,8 +256,7 @@ Block.fromJSON = function fromJSON(json) {
 
 Block.prototype.toCompact = function toCompact() {
   return {
-    type: 'block',
-    subtype: this.subtype,
+    type: this.type,
     hash: this.hash('hex'),
     prevBlock: this.prevBlock,
     ts: this.ts,
@@ -302,17 +298,29 @@ Block.prototype.toRaw = function toRaw(enc) {
   return data;
 };
 
-Block._fromRaw = function _fromRaw(data, enc) {
+Block._fromRaw = function _fromRaw(data, enc, type) {
   var parser = new bcoin.protocol.parser();
 
   if (enc === 'hex')
     data = new Buffer(data, 'hex');
 
+  if (type === 'merkleblock')
+    return bcoin.merkleblock._fromRaw(data);
+
+  if (type === 'headers')
+    return bcoin.headers._fromRaw(data);
+
   return parser.parseBlock(data);
 };
 
-Block.fromRaw = function fromRaw(data, enc) {
-  return new Block(Block._fromRaw(data, enc, subtype), subtype);
+Block.fromRaw = function fromRaw(data, enc, type) {
+  if (type === 'merkleblock')
+    return bcoin.merkleblock.fromRaw(data);
+
+  if (type === 'headers')
+    return bcoin.headers.fromRaw(data);
+
+  return new Block(Block._fromRaw(data, enc));
 };
 
 /**
diff --git a/lib/bcoin/blockdb.js b/lib/bcoin/blockdb.js
index 1e8ffe37..4181e7ee 100644
--- a/lib/bcoin/blockdb.js
+++ b/lib/bcoin/blockdb.js
@@ -703,7 +703,6 @@ BlockDB.prototype.getTXByAddress = function getTXByAddress(addresses, options, c
               });
             }
 
-            tx.network = true;
             tx.height = record.height;
 
             if (entry) {
@@ -761,7 +760,6 @@ BlockDB.prototype.getTX = function getTX(hash, callback) {
           if (err)
             return callback(err);
 
-          tx.network = true;
           tx.height = record.height;
 
           if (entry) {
@@ -813,10 +811,8 @@ BlockDB.prototype.getBlock = function getBlock(hash, callback) {
           return callback(e);
         }
         block._fileOffset = record.offset;
-        block.network = true;
         block.height = record.height;
         block.txs.forEach(function(tx) {
-          tx.network = true;
           tx.height = block.height;
         });
         if (self.options.paranoid) {
diff --git a/lib/bcoin/chain.js b/lib/bcoin/chain.js
index 0ad8be6f..b5f5f71f 100644
--- a/lib/bcoin/chain.js
+++ b/lib/bcoin/chain.js
@@ -541,7 +541,7 @@ Chain.prototype._verify = function _verify(block, prev) {
   //   locktimeMedian = true;
 
   // Can't verify any further when merkleblock or headers.
-  if (block.subtype !== 'block')
+  if (block.type !== 'block')
     return flags;
 
   // Make sure the height contained in the coinbase is correct.
@@ -574,7 +574,7 @@ Chain.prototype._checkDuplicates = function _checkDuplicates(block, prev, callba
   var self = this;
   var height = prev.height + 1;
 
-  if (!this.blockdb || block.subtype !== 'block')
+  if (!this.blockdb || block.type !== 'block')
     return callback(null, true);
 
   if (block.isGenesis())
@@ -608,7 +608,7 @@ Chain.prototype._checkInputs = function _checkInputs(block, prev, flags, callbac
   var height = prev.height + 1;
   var scriptCheck = true;
 
-  if (!this.blockdb || block.subtype !== 'block')
+  if (!this.blockdb || block.type !== 'block')
     return callback(null, true);
 
   if (block.isGenesis())
@@ -1110,7 +1110,7 @@ Chain.prototype.add = function add(initial, peer, callback, force) {
       }, peer);
       block = {
         data: block._raw,
-        subtype: block.subtype,
+        type: block.type,
         hash: block.hash('hex'),
         prevBlock: block.prevBlock,
         coinbaseHeight: block.getCoinbaseHeight()
@@ -1299,8 +1299,13 @@ Chain.prototype.add = function add(initial, peer, callback, force) {
       delete self.orphan.map[hash];
       self.orphan.count--;
       self.orphan.size -= block.data.length;
-      block = bcoin.block.fromRaw(block.data, block.subtype);
-      block.network = true;
+
+      if (block.type === 'block')
+        block = bcoin.block.fromRaw(block.data);
+      else if (block.type === 'merkleblock')
+        block = bcoin.merkleblock.fromRaw(block.data);
+      else if (block.type === 'headers')
+        block = bcoin.headers.fromRaw(block.data);
 
       next(block);
     }
diff --git a/lib/bcoin/headers.js b/lib/bcoin/headers.js
index f3d946af..744e9ebf 100644
--- a/lib/bcoin/headers.js
+++ b/lib/bcoin/headers.js
@@ -23,7 +23,7 @@ function Headers(data) {
 
   bcoin.abstractblock.call(this, data);
 
-  this.subtype = 'headers'
+  this.type = 'headers'
 
   if (!this._raw)
     this._raw = this.render();
@@ -76,7 +76,7 @@ Headers._fromRaw = function _fromRaw(data, enc) {
 };
 
 Headers.fromRaw = function fromRaw(data, enc) {
-  return new Headers(Headers._fromRaw(data, enc, subtype));
+  return new Headers(Headers._fromRaw(data, enc));
 };
 
 
diff --git a/lib/bcoin/merkleblock.js b/lib/bcoin/merkleblock.js
index 3989a605..62d4ed4e 100644
--- a/lib/bcoin/merkleblock.js
+++ b/lib/bcoin/merkleblock.js
@@ -21,7 +21,7 @@ function MerkleBlock(data) {
 
   bcoin.abstractblock.call(this, data);
 
-  this.subtype = 'merkleblock'
+  this.type = 'merkleblock'
 
   this.hashes = (data.hashes || []).map(function(hash) {
     return utils.toHex(hash);
@@ -63,9 +63,6 @@ MerkleBlock.prototype._verifyPartial = function _verifyPartial() {
   var flags = this.flags;
   var i, root;
 
-  if (this.subtype !== 'merkleblock')
-    return;
-
   // Count leaves
   for (i = this.totalTX; i > 0; i >>= 1)
     height++;
diff --git a/lib/bcoin/pool.js b/lib/bcoin/pool.js
index bc145bff..468d1991 100644
--- a/lib/bcoin/pool.js
+++ b/lib/bcoin/pool.js
@@ -168,7 +168,7 @@ Pool.prototype._init = function _init() {
   this.chain.on('block', function(block, entry, peer) {
     self.emit('block', block, peer);
     // Emit merkle txs after the fact
-    if (block.subtype === 'merkleblock') {
+    if (block.type === 'merkleblock') {
       block.txs.forEach(function(tx) {
         self._handleTX(tx, peer);
       });
diff --git a/lib/bcoin/tx.js b/lib/bcoin/tx.js
index c5636006..3a3af8a3 100644
--- a/lib/bcoin/tx.js
+++ b/lib/bcoin/tx.js
@@ -55,7 +55,7 @@ function TX(data, block) {
   }
 
   if (block && !data.ts) {
-    if (block.subtype === 'merkleblock') {
+    if (block.type === 'merkleblock') {
       if (block.hasTX(this.hash('hex')))
         this.setBlock(block);
     } else {