diff --git a/bin/cli b/bin/cli
index 9d3f3967..94a7c6f8 100755
--- a/bin/cli
+++ b/bin/cli
@@ -320,6 +320,12 @@ CLI.prototype.getDetails = co(function* getDetails() {
   this.log(details);
 });
 
+CLI.prototype.getWalletBlock = co(function* getWalletBlock() {
+  var height = this.argv[0] | 0;
+  var details = yield this.wallet.getBlock(height);
+  this.log(details);
+});
+
 CLI.prototype.retoken = co(function* retoken() {
   var result = yield this.wallet.retoken();
   this.log(result);
@@ -480,6 +486,8 @@ CLI.prototype.handleWallet = co(function* handleWallet() {
       return yield this.zapWallet();
     case 'tx':
       return yield this.getDetails();
+    case 'block':
+      return yield this.getWalletBlock();
     case 'view':
       return yield this.viewTX();
     case 'import':
@@ -518,6 +526,7 @@ CLI.prototype.handleWallet = co(function* handleWallet() {
       this.log('  $ sign [tx-hex]: Sign transaction.');
       this.log('  $ zap [age?]: Zap pending wallet TXs.');
       this.log('  $ tx [hash]: View transaction details.');
+      this.log('  $ block [height]: View wallet block.');
       this.log('  $ view [tx-hex]: Parse and view transaction.');
       this.log('  $ import [wif|hex]: Import private or public key.');
       this.log('  $ watch [address]: Import an address.');
diff --git a/lib/http/client.js b/lib/http/client.js
index 476ca86e..486c5b40 100644
--- a/lib/http/client.js
+++ b/lib/http/client.js
@@ -433,7 +433,7 @@ HTTPClient.prototype.none = function none() {
  * Request the raw wallet JSON (will create wallet if it does not exist).
  * @private
  * @param {Object} options - See {@link Wallet}.
- * @returns {Promise} - Returns Object.
+ * @returns {Promise}
  */
 
 HTTPClient.prototype.createWallet = function createWallet(options) {
@@ -444,7 +444,7 @@ HTTPClient.prototype.createWallet = function createWallet(options) {
  * Get the raw wallet JSON.
  * @private
  * @param {WalletID} id
- * @returns {Promise} - Returns Object.
+ * @returns {Promise}
  */
 
 HTTPClient.prototype.getWallet = function getWallet(id) {
@@ -454,7 +454,7 @@ HTTPClient.prototype.getWallet = function getWallet(id) {
 /**
  * Get wallet transaction history.
  * @param {WalletID} id
- * @returns {Promise} - Returns {@link TX}[].
+ * @returns {Promise}
  */
 
 HTTPClient.prototype.getHistory = function getHistory(id, account) {
@@ -465,7 +465,7 @@ HTTPClient.prototype.getHistory = function getHistory(id, account) {
 /**
  * Get wallet coins.
  * @param {WalletID} id
- * @returns {Promise} - Returns {@link Coin}[].
+ * @returns {Promise}
  */
 
 HTTPClient.prototype.getCoins = function getCoins(id, account) {
@@ -476,7 +476,7 @@ HTTPClient.prototype.getCoins = function getCoins(id, account) {
 /**
  * Get all unconfirmed transactions.
  * @param {WalletID} id
- * @returns {Promise} - Returns {@link TX}[].
+ * @returns {Promise}
  */
 
 HTTPClient.prototype.getPending = function getPending(id, account) {
@@ -487,7 +487,7 @@ HTTPClient.prototype.getPending = function getPending(id, account) {
 /**
  * Calculate wallet balance.
  * @param {WalletID} id
- * @returns {Promise} - Returns {@link Balance}.
+ * @returns {Promise}
  */
 
 HTTPClient.prototype.getBalance = function getBalance(id, account) {
@@ -499,7 +499,7 @@ HTTPClient.prototype.getBalance = function getBalance(id, account) {
  * Get last N wallet transactions.
  * @param {WalletID} id
  * @param {Number} limit - Max number of transactions.
- * @returns {Promise} - Returns {@link TX}[].
+ * @returns {Promise}
  */
 
 HTTPClient.prototype.getLast = function getLast(id, account, limit) {
@@ -515,7 +515,7 @@ HTTPClient.prototype.getLast = function getLast(id, account, limit) {
  * @param {Number} options.end - End time.
  * @param {Number?} options.limit - Max number of records.
  * @param {Boolean?} options.reverse - Reverse order.
- * @returns {Promise} - Returns {@link TX}[].
+ * @returns {Promise}
  */
 
 HTTPClient.prototype.getRange = function getRange(id, account, options) {
@@ -534,20 +534,31 @@ HTTPClient.prototype.getRange = function getRange(id, account, options) {
  * is available in the wallet history).
  * @param {WalletID} id
  * @param {Hash} hash
- * @returns {Promise} - Returns {@link TX}[].
+ * @returns {Promise}
  */
 
 HTTPClient.prototype.getWalletTX = function getWalletTX(id, hash) {
   return this._get('/wallet/' + id + '/tx/' + hash);
 };
 
+/**
+ * Get wallet block.
+ * @param {WalletID} id
+ * @param {Number} height
+ * @returns {Promise}
+ */
+
+HTTPClient.prototype.getWalletBlock = function getWalletBlock(id, height) {
+  return this._get('/wallet/' + id + '/block/' + height);
+};
+
 /**
  * Get unspent coin (only possible if the transaction
  * is available in the wallet history).
  * @param {WalletID} id
  * @param {Hash} hash
  * @param {Number} index
- * @returns {Promise} - Returns {@link Coin}[].
+ * @returns {Promise}
  */
 
 HTTPClient.prototype.getWalletCoin = function getWalletCoin(id, account, hash, index) {
@@ -562,7 +573,7 @@ HTTPClient.prototype.getWalletCoin = function getWalletCoin(id, account, hash, i
  * @param {Object} options
  * @param {Base58Address} options.address
  * @param {Amount} options.value
- * @returns {Promise} - Returns {@link TX}.
+ * @returns {Promise}
  */
 
 HTTPClient.prototype.send = function send(id, options) {
@@ -611,7 +622,7 @@ HTTPClient.prototype.setPassphrase = function setPassphrase(id, old, new_) {
  * Create a transaction, fill.
  * @param {WalletID} id
  * @param {Object} options
- * @returns {Promise} - Returns {@link TX}.
+ * @returns {Promise}
  */
 
 HTTPClient.prototype.createTX = function createTX(id, options) {
@@ -636,7 +647,7 @@ HTTPClient.prototype.createTX = function createTX(id, options) {
  * @param {WalletID} id
  * @param {TX} tx
  * @param {Object} options
- * @returns {Promise} - Returns {@link TX}.
+ * @returns {Promise}
  */
 
 HTTPClient.prototype.sign = function sign(id, tx, options) {
@@ -654,7 +665,7 @@ HTTPClient.prototype.sign = function sign(id, tx, options) {
 /**
  * Fill a transaction with coins.
  * @param {TX} tx
- * @returns {Promise} - Returns {@link TX}.
+ * @returns {Promise}
  */
 
 HTTPClient.prototype.fillCoins = function fillCoins(id, tx) {
@@ -895,7 +906,7 @@ HTTPClient.prototype.createAccount = function createAccount(id, options) {
  * Create address.
  * @param {WalletID} id
  * @param {Object} options
- * @returns {Promise} - Returns Array.
+ * @returns {Promise}
  */
 
 HTTPClient.prototype.createAddress = function createAddress(id, options) {
@@ -916,7 +927,7 @@ HTTPClient.prototype.createAddress = function createAddress(id, options) {
  * Create address.
  * @param {WalletID} id
  * @param {Object} options
- * @returns {Promise} - Returns Array.
+ * @returns {Promise}
  */
 
 HTTPClient.prototype.createNested = function createNested(id, options) {
diff --git a/lib/http/server.js b/lib/http/server.js
index e0971eb2..f4aa0695 100644
--- a/lib/http/server.js
+++ b/lib/http/server.js
@@ -917,6 +917,21 @@ HTTPServer.prototype._init = function _init() {
     send(200, { success: true });
   }));
 
+  // Get Block Record
+  this.get('/wallet/:id/block/:height', con(function* (req, res, send, next) {
+    var height = req.options.height;
+    var block;
+
+    enforce(height != null, 'Height is required.');
+
+    block = yield req.wallet.getBlock(height);
+
+    if (!block)
+      return send(404);
+
+    send(200, block.toJSON());
+  }));
+
   // Add key
   this.put('/wallet/:id/shared-key', con(function* (req, res, send, next) {
     var options = req.options;
diff --git a/lib/http/wallet.js b/lib/http/wallet.js
index f0e540a4..b7d6f805 100644
--- a/lib/http/wallet.js
+++ b/lib/http/wallet.js
@@ -198,6 +198,14 @@ HTTPWallet.prototype.getTX = function getTX(hash) {
   return this.client.getWalletTX(this.id, hash);
 };
 
+/**
+ * @see Wallet#getBlock
+ */
+
+HTTPWallet.prototype.getBlock = function getBlock(height) {
+  return this.client.getWalletBlock(this.id, height);
+};
+
 /**
  * @see Wallet#getCoin
  */
diff --git a/lib/wallet/txdb.js b/lib/wallet/txdb.js
index 5ddabce8..d7548f9f 100644
--- a/lib/wallet/txdb.js
+++ b/lib/wallet/txdb.js
@@ -981,37 +981,38 @@ TXDB.prototype.removeBlockMap = co(function* removeBlockMap(tx, height) {
  */
 
 TXDB.prototype.getBlock = co(function* getBlock(height) {
-  var data = yield this.db.get(layout.b(height));
+  var data = yield this.get(layout.b(height));
+
   if (!data)
     return;
+
   return BlockRecord.fromRaw(data);
 });
 
 /**
  * Append to the global block record.
  * @param {TX} tx
- * @param {Number} height
+ * @param {BlockMeta} entry
  * @returns {Promise}
  */
 
 TXDB.prototype.addBlock = co(function* addBlock(tx, entry) {
   var hash = tx.hash('hex');
-  var block = yield this.getBlock(entry.height);
+  var height = tx.height;
+  var block = yield this.getBlock(height);
 
   if (!block)
-    block = new BlockRecord(entry.hash, entry.height, entry.ts);
+    block = new BlockRecord(tx.block, tx.height, tx.ts);
 
-  if (block.hashes.indexOf(hash) !== -1)
+  if (!block.add(hash))
     return;
 
-  block.hashes.push(hash);
-
-  this.put(layout.b(entry.height), block.toRaw());
+  this.put(layout.b(height), block.toRaw());
 });
 
 /**
  * Remove from the global block record.
- * @param {TX}
+ * @param {TX} tx
  * @param {Number} height
  * @returns {Promise}
  */
@@ -1019,18 +1020,13 @@ TXDB.prototype.addBlock = co(function* addBlock(tx, entry) {
 TXDB.prototype.removeBlock = co(function* removeBlock(tx, height) {
   var hash = tx.hash('hex');
   var block = yield this.getBlock(height);
-  var index;
 
   if (!block)
     return;
 
-  index = block.hashes.indexOf(hash);
-
-  if (index === -1)
+  if (!block.remove(hash))
     return;
 
-  block.hashes.splice(index, 1);
-
   if (block.hashes.length === 0) {
     this.del(layout.b(height));
     return;
@@ -1043,6 +1039,7 @@ TXDB.prototype.removeBlock = co(function* removeBlock(tx, height) {
  * Add transaction, potentially runs
  * `confirm()` and `removeConflicts()`.
  * @param {TX} tx
+ * @param {BlockMeta} block
  * @returns {Promise}
  */
 
@@ -1127,6 +1124,7 @@ TXDB.prototype._add = co(function* add(tx, block) {
  * Insert transaction.
  * @private
  * @param {TX} tx
+ * @param {BlockMeta} block
  * @returns {Promise}
  */
 
@@ -1267,8 +1265,10 @@ TXDB.prototype.insert = co(function* insert(tx, block) {
       this.put(layout.H(account, tx.height, hash), DUMMY);
   }
 
-  if (tx.height !== -1)
+  if (tx.height !== -1) {
     yield this.addBlockMap(tx, tx.height);
+    yield this.addBlock(tx, block);
+  }
 
   // Update the transaction counter and
   // commit the new state. This state will
@@ -1296,6 +1296,7 @@ TXDB.prototype.insert = co(function* insert(tx, block) {
  * Attempt to confirm a transaction.
  * @private
  * @param {TX} tx
+ * @param {BlockMeta} block
  * @returns {Promise}
  */
 
@@ -1333,6 +1334,7 @@ TXDB.prototype.confirm = co(function* confirm(hash, block) {
  * Attempt to confirm a transaction.
  * @private
  * @param {TX} tx
+ * @param {BlockMeta} block
  * @returns {Promise}
  */
 
@@ -1437,8 +1439,10 @@ TXDB.prototype._confirm = co(function* confirm(tx, block) {
     this.put(layout.H(account, tx.height, hash), DUMMY);
   }
 
-  if (tx.height !== -1)
+  if (tx.height !== -1) {
     yield this.addBlockMap(tx, tx.height);
+    yield this.addBlock(tx, block);
+  }
 
   // Commit the new state. The balance has updated.
   this.put(layout.R, this.pending.commit());
@@ -1567,8 +1571,10 @@ TXDB.prototype.erase = co(function* erase(tx) {
       this.del(layout.H(account, tx.height, hash));
   }
 
-  if (tx.height !== -1)
+  if (tx.height !== -1) {
     yield this.removeBlockMap(tx, tx.height);
+    yield this.removeBlock(tx, tx.height);
+  }
 
   // Update the transaction counter
   // and commit new state due to
@@ -1740,6 +1746,7 @@ TXDB.prototype.disconnect = co(function* disconnect(tx) {
   }
 
   yield this.removeBlockMap(tx, height);
+  yield this.removeBlock(tx, height);
 
   // We need to update the now-removed
   // block properties and reindex due
@@ -3359,8 +3366,54 @@ function BlockRecord(hash, height, ts) {
   this.height = height != null ? height : -1;
   this.ts = ts || 0;
   this.hashes = [];
+  this.index = {};
 }
 
+/**
+ * Add transaction to block record.
+ * @param {Hash} hash
+ * @returns {Boolean}
+ */
+
+BlockRecord.prototype.add = function add(hash) {
+  if (this.index[hash])
+    return false;
+
+  this.index[hash] = true;
+  this.hashes.push(hash);
+
+  return true;
+};
+
+/**
+ * Remove transaction from block record.
+ * @param {Hash} hash
+ * @returns {Boolean}
+ */
+
+BlockRecord.prototype.remove = function remove(hash) {
+  var index;
+
+  if (!this.index[hash])
+    return false;
+
+  delete this.index[hash];
+
+  // Fast case
+  if (this.hashes[this.hashes.length - 1] === hash) {
+    this.hashes.pop();
+    return true;
+  }
+
+  index = this.hashes.indexOf(hash);
+
+  assert(index !== -1);
+
+  this.hashes.splice(index, 1);
+
+  return true;
+};
+
 /**
  * Instantiate wallet block from serialized tip data.
  * @private
@@ -3369,12 +3422,17 @@ function BlockRecord(hash, height, ts) {
 
 BlockRecord.prototype.fromRaw = function fromRaw(data) {
   var p = new BufferReader(data);
+  var hash;
+
   this.hash = p.readHash('hex');
   this.height = p.readU32();
   this.ts = p.readU32();
 
-  while (p.left())
-    this.hashes.push(p.readHash('hex'));
+  while (p.left()) {
+    hash = p.readHash('hex');
+    this.index[hash] = true;
+    this.hashes.push(hash);
+  }
 
   return this;
 };
diff --git a/lib/wallet/wallet.js b/lib/wallet/wallet.js
index cfa96d17..b18383da 100644
--- a/lib/wallet/wallet.js
+++ b/lib/wallet/wallet.js
@@ -1984,6 +1984,16 @@ Wallet.prototype.getTX = function getTX(hash) {
   return this.txdb.getTX(hash);
 };
 
+/**
+ * Get a block from the wallet.
+ * @param {Number} height
+ * @returns {Promise} - Returns {@link BlockRecord}.
+ */
+
+Wallet.prototype.getBlock = function getBlock(height) {
+  return this.txdb.getBlock(height);
+};
+
 /**
  * Add a transaction to the wallets TX history.
  * @param {TX} tx
diff --git a/lib/wallet/walletdb.js b/lib/wallet/walletdb.js
index eae1c802..c73857ce 100644
--- a/lib/wallet/walletdb.js
+++ b/lib/wallet/walletdb.js
@@ -476,7 +476,7 @@ WalletDB.prototype.wipe = co(function* wipe() {
   this.logger.warning('Wiping WalletDB TXDB...');
   this.logger.warning('I hope you know what you\'re doing.');
 
-  iter = db.iterator({
+  iter = this.db.iterator({
     gte: new Buffer([0x00]),
     lte: new Buffer([0xff])
   });
@@ -2002,15 +2002,15 @@ WalletDB.prototype.addTX = co(function* addTX(tx) {
       block = yield this.getBlock(tx.height);
 
       if (!block)
-        throw new Error('WDB: Inserting confirmed transaction.');
+        throw new Error('WDB: Cannot insert tx from unknown chain.');
 
       if (tx.block !== block.hash)
-        throw new Error('WDB: Inserting confirmed transaction.');
+        throw new Error('WDB: Cannot insert tx from alternate chain.');
 
       this.logger.warning('WalletDB is inserting confirmed transaction.');
     }
 
-    return yield this._insert(tx);
+    return yield this._insert(tx, block);
   } finally {
     unlock();
   }