diff --git a/lib/services/address/index.js b/lib/services/address/index.js
index 849be206..9bc6371a 100644
--- a/lib/services/address/index.js
+++ b/lib/services/address/index.js
@@ -13,6 +13,17 @@ var Encoding = require('./encoding');
 var Transform = require('stream').Transform;
 var assert = require('assert');
 var utils = require('../../utils');
+var LRU = require('lru-cache');
+var XXHash = require('xxhash');
+
+
+
+// See rationale about this cache at function getTxList(next)
+const TXID_LIST_CACHE_ITEMS = 250;              // nr of items (this translates to: consecutive 
+                                                // clients downloading their tx history)
+const TXID_LIST_CACHE_EXPIRATION = 1000 * 30;   // ms
+const TXID_LIST_CACHE_MIN = 100;                // Min items to cache
+const TXID_LIST_CACHE_SEED = 0x3233DE;                // Min items to cache
 
 var AddressService = function(options) {
 
@@ -24,6 +35,11 @@ var AddressService = function(options) {
   this._network = this.node.network;
   this._db = this.node.services.db;
   this._mempool = this.node.services.mempool;
+  this._txIdListCache = new LRU({
+    max: TXID_LIST_CACHE_ITEMS,        
+    maxAge: TXID_LIST_CACHE_EXPIRATION 
+  });
+ 
 
   if (this._network === 'livenet') {
     this._network = 'main';
@@ -49,8 +65,12 @@ AddressService.dependencies = [
 // for example if the query /api/addrs/txs?from=0&to=5&noAsm=1&noScriptSig=1&noSpent=1, and the addresses passed
 // in are [addr1, addr2, addr3], then if addr3 has tx1 at height 10, addr2 has tx2 at height 9 and tx1 has no txs,
 // then I would pass back [tx1, tx2] in that order
+//
+// Instead of passing addresses, with from>0, options.cacheKey can be used to define the address set.
+//
 AddressService.prototype.getAddressHistory = function(addresses, options, callback) {
   var self = this;
+  var cacheUsed = false;
 
   options = options || {};
   options.from = options.from || 0;
@@ -65,31 +85,75 @@ AddressService.prototype.getAddressHistory = function(addresses, options, callba
     addresses = [addresses];
   }
 
-  async.eachLimit(addresses, 4, function(address, next) {
 
-    self._getAddressTxidHistory(address, options, next);
+  function getTxList(next) {
 
-  }, function(err) {
 
+    function hashAddresses(addresses) {
+
+      // Given there are only TXID_LIST_CACHE_ITEMS ~ 250 items cached at the sametime
+      // a 32 bits hash is secure enough
+
+      return XXHash.hash(Buffer.from(addresses.join('')), TXID_LIST_CACHE_SEED);
+    };
+
+    var calculatedCacheKey;
+
+    // We use the cache ONLY on from > 0 queries.
+    //
+    // Rationale: The a full history is downloaded, the client do
+    // from =0, to=x
+    // then from =x+1 to=y
+    // then [...]
+    // The objective of this cache is to speed up the from>0 queries, and also
+    // "freeze" the txid list during download.
+    //
+    if (options.from >0 ) {
+      
+      let cacheKey  = options.cacheKey;
+      if (!cacheKey) {
+         calculatedCacheKey = hashAddresses(addresses);
+         cacheKey =  calculatedCacheKey;
+      }
+
+      var txIdList  = self._txIdListCache.get(cacheKey);
+      if (txIdList) {
+        options.txIdList = txIdList;
+        cacheUsed = true;
+        return next();
+      }
+    }
+
+    // Get the list from the db
+    async.eachLimit(addresses, 4, function(address, next) {
+      self._getAddressTxidHistory(address, options, next);
+    }, function(err) {
+      if (err) return next(err);
+
+      var list = lodash.uniqBy(options.txIdList, function(x) { 
+        return x.txid + x.height;
+      });
+
+
+      options.txIdList = lodash.orderBy(list,['height','txid'], ['desc','asc']);
+
+      if (list.length > TXID_LIST_CACHE_MIN) {
+        calculatedCacheKey  = calculatedCacheKey || hashAddresses(addresses);
+
+        self._txIdListCache.set(calculatedCacheKey, options.txIdList);
+      }
+
+      return next();
+    });
+
+  };
+
+
+  getTxList(function(err) {
     if(err) {
       return callback(err);
     }
 
-    var unique = {};
-    var list = [];
-
-    for (let i = 0; i < options.txIdList.length; i++) {
-      unique[options.txIdList[i].txid + options.txIdList[i].height] = options.txIdList[i];
-    }
-
-    for (var prop in unique) {
-      list.push(unique[prop]);
-    }
-
-    options.txIdList = list.sort(function(a, b) {
-     return b.height - a.height;
-    });
-
     self._getAddressTxHistory(options, function(err, txList) {
 
       if (err) {
@@ -98,10 +162,11 @@ AddressService.prototype.getAddressHistory = function(addresses, options, callba
 
       var results = {
         totalCount: options.txIdList.length || 0,
-        items: txList
+        items: txList,
       };
 
-      callback(null, results);
+      // cacheUsed is returned for testing
+      callback(null, results, cacheUsed);
 
     });
   });
@@ -427,7 +492,6 @@ AddressService.prototype._getAddressTxHistory = function(options, callback) {
 };
 
 AddressService.prototype._getAddressTxidHistory = function(address, options, callback) {
-
   var self = this;
 
   options = options || {};
diff --git a/lib/services/p2p/index.js b/lib/services/p2p/index.js
index f7f32a4d..475b8cfb 100644
--- a/lib/services/p2p/index.js
+++ b/lib/services/p2p/index.js
@@ -10,6 +10,7 @@ var assert = require('assert');
 var Bcoin = require('./bcoin');
 var BcoinTx = require('fcoin').tx;
 var Networks = require('flocore-lib').Networks;
+var BitcoreRPC = require('bitcoind-rpc');
 var LRU = require('lru-cache');
 
 var P2P = function(options) {
@@ -21,6 +22,7 @@ var P2P = function(options) {
   BaseService.call(this, options);
   this._options = options;
 
+  this._initRPC(options);
   this._initP2P();
   this._initPubSub();
   this._bcoin = null;
@@ -128,26 +130,7 @@ P2P.prototype.getPublishEvents = function() {
 
 
 P2P.prototype.sendTransaction = function(tx, callback) {
-  var peer = this._getPeer();
-
-  var bcoinTx;
-  try {
-    bcoinTx = BcoinTx.fromRaw(tx, 'hex');
-  } catch(e) {
-    return callback(e);
-  }
-
-  log.info('P2P Service: sending transaction: ' + bcoinTx.txid());
-
-  this._outgoingTxs.set(bcoinTx.txid(), bcoinTx);
-  var inv = p2p.Inventory.forTransaction(bcoinTx.txid());
-  var txMessage = this.messages.Inventory([inv]);
-
-  peer.sendMessage(txMessage);
-
-  this._onPeerTx(peer, { transaction: bcoinTx });
-
-  return callback(null, bcoinTx.txid());
+  return this._client.sendRawTransaction(tx, callback);
 };
 
 
@@ -269,6 +252,23 @@ P2P.prototype._initCache = function() {
   this._inv = LRU(1000);
 };
 
+P2P.prototype._initRPC = function (options) {
+  var port = 7312
+
+  if (this.node.network === 'testnet')
+    port = 17312
+
+  this._config = options.rpc || {
+    user: 'flocore',
+    pass: 'flocorepassw123',
+    host: 'localhost',
+    protocol: 'http',
+    port: port
+  };
+  
+  this._client = new BitcoreRPC(this._config);
+}
+
 P2P.prototype._initP2P = function() {
   this._maxPeers = this._options.maxPeers || 60;
   this._minPeers = this._options.minPeers || 0;
diff --git a/package-lock.json b/package-lock.json
index 10fca47c..6750b9b5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "flocore-node",
-  "version": "5.0.0-beta.68",
+  "version": "5.0.0-beta.69",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -217,8 +217,7 @@
     "balanced-match": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
-      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
-      "dev": true
+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
     },
     "base": {
       "version": "0.11.2",
@@ -335,6 +334,11 @@
         "safe-buffer": "5.1.1"
       }
     },
+    "bitcoind-rpc": {
+      "version": "0.7.2",
+      "resolved": "https://registry.npmjs.org/bitcoind-rpc/-/bitcoind-rpc-0.7.2.tgz",
+      "integrity": "sha512-3alq5pH4/mAdEscucew98ls0s7BEaDvKTuYW34nSkTsmTC7G9R7Xh+ABXOxeVBfG/+rKfyQLmFAm2aRq92tJqw=="
+    },
     "bl": {
       "version": "1.2.2",
       "resolved": "https://registry.npmjs.org/bl/-/bl-1.2.2.tgz",
@@ -349,6 +353,11 @@
       "resolved": "https://registry.npmjs.org/blob/-/blob-0.0.4.tgz",
       "integrity": "sha1-vPEwUspURj8w+fx+lbmkdjCpSSE="
     },
+    "bloom-filter": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/bloom-filter/-/bloom-filter-0.2.0.tgz",
+      "integrity": "sha1-hNY7v5Fy2DA+ZMH/FuudvzOpgaM="
+    },
     "bn.js": {
       "version": "4.11.8",
       "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.8.tgz",
@@ -375,7 +384,6 @@
       "version": "1.1.11",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
       "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
-      "dev": true,
       "requires": {
         "balanced-match": "1.0.0",
         "concat-map": "0.0.1"
@@ -458,6 +466,9 @@
       "integrity": "sha1-JuYe0UIvtw3ULm42cp7VHYVf6Nk=",
       "optional": true
     },
+    "buffers": {
+      "version": "github:bitpay/node-buffers#04f4c4264e0d105db2b99b786843ed64f23230d8"
+    },
     "bytes": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.0.0.tgz",
@@ -566,6 +577,31 @@
         }
       }
     },
+    "cli": {
+      "version": "0.4.5",
+      "resolved": "https://registry.npmjs.org/cli/-/cli-0.4.5.tgz",
+      "integrity": "sha1-ePlIXNFhtWbppsctcXDEJw6B22E=",
+      "requires": {
+        "glob": "7.1.2"
+      }
+    },
+    "cliff": {
+      "version": "0.1.10",
+      "resolved": "https://registry.npmjs.org/cliff/-/cliff-0.1.10.tgz",
+      "integrity": "sha1-U74z6p9ZvshWCe4wCsQgdgPlIBM=",
+      "requires": {
+        "colors": "1.0.3",
+        "eyes": "0.1.8",
+        "winston": "0.8.3"
+      },
+      "dependencies": {
+        "colors": {
+          "version": "1.0.3",
+          "resolved": "https://registry.npmjs.org/colors/-/colors-1.0.3.tgz",
+          "integrity": "sha1-BDP0TYCWgP3rYO0mDxsMJi6CpAs="
+        }
+      }
+    },
     "cliui": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/cliui/-/cliui-2.1.0.tgz",
@@ -678,8 +714,7 @@
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
-      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
-      "dev": true
+      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
     },
     "console-browserify": {
       "version": "1.1.0",
@@ -903,6 +938,11 @@
         "sha.js": "2.4.11"
       }
     },
+    "cycle": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/cycle/-/cycle-1.0.3.tgz",
+      "integrity": "sha1-IegLK+hYD5i0aPN5QwZisEbDStI="
+    },
     "dashdash": {
       "version": "1.14.1",
       "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
@@ -1560,6 +1600,11 @@
       "resolved": "https://registry.npmjs.org/extsprintf/-/extsprintf-1.3.0.tgz",
       "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU="
     },
+    "eyes": {
+      "version": "0.1.8",
+      "resolved": "https://registry.npmjs.org/eyes/-/eyes-0.1.8.tgz",
+      "integrity": "sha1-Ys8SAjTGg3hdkCNIqADvPgzCC8A="
+    },
     "fast-deep-equal": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz",
@@ -1581,6 +1626,83 @@
       "integrity": "sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=",
       "dev": true
     },
+    "fcoin": {
+      "version": "1.0.0-beta.20",
+      "resolved": "https://registry.npmjs.org/fcoin/-/fcoin-1.0.0-beta.20.tgz",
+      "integrity": "sha512-U448wU+tKx+GwBtmdckQRx1CsMMOLlBkAozhGPuej07ZPrKE1qicHvLSMq4qD4JHmVAVcVLxb40qhAFoorKcKw==",
+      "requires": {
+        "bcoin-native": "0.0.23",
+        "bn.js": "4.11.8",
+        "elliptic": "6.4.0",
+        "leveldown": "1.7.2",
+        "n64": "0.0.18",
+        "secp256k1": "3.3.0",
+        "socket.io": "2.0.3",
+        "socket.io-client": "2.0.3"
+      },
+      "dependencies": {
+        "bindings": {
+          "version": "1.2.1",
+          "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.2.1.tgz",
+          "integrity": "sha1-FK1hE4EtLTfXLme0ystLtyZQXxE=",
+          "optional": true
+        },
+        "leveldown": {
+          "version": "1.7.2",
+          "resolved": "https://registry.npmjs.org/leveldown/-/leveldown-1.7.2.tgz",
+          "integrity": "sha1-XjRnuyfuJGpKe429j7KxYgam64s=",
+          "optional": true,
+          "requires": {
+            "abstract-leveldown": "2.6.3",
+            "bindings": "1.2.1",
+            "fast-future": "1.0.2",
+            "nan": "2.6.2",
+            "prebuild-install": "2.5.3"
+          }
+        },
+        "nan": {
+          "version": "2.6.2",
+          "resolved": "https://registry.npmjs.org/nan/-/nan-2.6.2.tgz",
+          "integrity": "sha1-5P805slf37WuzAjeZZb0NgWn20U=",
+          "optional": true
+        },
+        "socket.io": {
+          "version": "2.0.3",
+          "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-2.0.3.tgz",
+          "integrity": "sha1-Q1nwaiSTOua9CHeYr3jGgOrjReM=",
+          "optional": true,
+          "requires": {
+            "debug": "2.6.9",
+            "engine.io": "3.1.5",
+            "object-assign": "4.1.1",
+            "socket.io-adapter": "1.1.1",
+            "socket.io-client": "2.0.3",
+            "socket.io-parser": "3.1.3"
+          }
+        },
+        "socket.io-client": {
+          "version": "2.0.3",
+          "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-2.0.3.tgz",
+          "integrity": "sha1-bK9K/5+FsZ/ZG2zhPWmttWT4hzs=",
+          "optional": true,
+          "requires": {
+            "backo2": "1.0.2",
+            "base64-arraybuffer": "0.1.5",
+            "component-bind": "1.0.0",
+            "component-emitter": "1.2.1",
+            "debug": "2.6.9",
+            "engine.io-client": "3.1.6",
+            "has-cors": "1.1.0",
+            "indexof": "0.0.1",
+            "object-component": "0.0.3",
+            "parseqs": "0.0.5",
+            "parseuri": "0.0.5",
+            "socket.io-parser": "3.1.3",
+            "to-array": "0.1.4"
+          }
+        }
+      }
+    },
     "fill-keys": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/fill-keys/-/fill-keys-1.0.2.tgz",
@@ -1662,9 +1784,9 @@
       "integrity": "sha1-Tnmumy6zi/hrO7Vr8+ClaqX8q9c="
     },
     "flocore-lib": {
-      "version": "0.15.0",
-      "resolved": "https://registry.npmjs.org/flocore-lib/-/flocore-lib-0.15.0.tgz",
-      "integrity": "sha512-1n8AN/aqjPPVf4xlNPfEZhQjkCUHWEGJ0nBahVvifOVkamLEAJWA3rpkgqhmYaW5p0YnUJ3lCBGjkRzu55AvYA==",
+      "version": "0.15.1",
+      "resolved": "https://registry.npmjs.org/flocore-lib/-/flocore-lib-0.15.1.tgz",
+      "integrity": "sha512-HKPP7EnwHibfp0LQpOkwNcXhg+QmN301oVPnael+jb3qzu7AZQnLrqW1J/Q1yiWuYJcbwNHsbpgAG9bLcByF6w==",
       "requires": {
         "bn.js": "2.0.4",
         "bs58": "2.0.0",
@@ -1815,6 +1937,95 @@
         }
       }
     },
+    "flocore-p2p": {
+      "version": "5.0.0-beta.6",
+      "resolved": "https://registry.npmjs.org/flocore-p2p/-/flocore-p2p-5.0.0-beta.6.tgz",
+      "integrity": "sha512-F++fED/rR6cLY/r1qOkVAv4T3IytvxiNJs7rgxDbIP6RgK7DNYn77eJCTbiFf/SZ7n7JEiNJcpgAim4kBnbC5A==",
+      "requires": {
+        "bloom-filter": "0.2.0",
+        "buffers": "github:bitpay/node-buffers#04f4c4264e0d105db2b99b786843ed64f23230d8",
+        "fcoin": "1.0.0-beta.18",
+        "flocore-lib": "0.15.1",
+        "socks5-client": "0.3.6"
+      },
+      "dependencies": {
+        "bindings": {
+          "version": "1.2.1",
+          "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.2.1.tgz",
+          "integrity": "sha1-FK1hE4EtLTfXLme0ystLtyZQXxE=",
+          "optional": true
+        },
+        "fcoin": {
+          "version": "1.0.0-beta.18",
+          "resolved": "https://registry.npmjs.org/fcoin/-/fcoin-1.0.0-beta.18.tgz",
+          "integrity": "sha512-Kk2SN8xILi6YnyOzf9MqJUsE1KoG/fhSfh43m34OhVJAi4o/1AP7VS6MJ10otgfGsiEj+CQ4pp+CfEG7DUG4xw==",
+          "requires": {
+            "bcoin-native": "0.0.23",
+            "bn.js": "4.11.8",
+            "elliptic": "6.4.0",
+            "leveldown": "1.7.2",
+            "n64": "0.0.18",
+            "secp256k1": "3.3.0",
+            "socket.io": "2.0.3",
+            "socket.io-client": "2.0.3"
+          }
+        },
+        "leveldown": {
+          "version": "1.7.2",
+          "resolved": "https://registry.npmjs.org/leveldown/-/leveldown-1.7.2.tgz",
+          "integrity": "sha1-XjRnuyfuJGpKe429j7KxYgam64s=",
+          "optional": true,
+          "requires": {
+            "abstract-leveldown": "2.6.3",
+            "bindings": "1.2.1",
+            "fast-future": "1.0.2",
+            "nan": "2.6.2",
+            "prebuild-install": "2.5.3"
+          }
+        },
+        "nan": {
+          "version": "2.6.2",
+          "resolved": "https://registry.npmjs.org/nan/-/nan-2.6.2.tgz",
+          "integrity": "sha1-5P805slf37WuzAjeZZb0NgWn20U=",
+          "optional": true
+        },
+        "socket.io": {
+          "version": "2.0.3",
+          "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-2.0.3.tgz",
+          "integrity": "sha1-Q1nwaiSTOua9CHeYr3jGgOrjReM=",
+          "optional": true,
+          "requires": {
+            "debug": "2.6.9",
+            "engine.io": "3.1.5",
+            "object-assign": "4.1.1",
+            "socket.io-adapter": "1.1.1",
+            "socket.io-client": "2.0.3",
+            "socket.io-parser": "3.1.3"
+          }
+        },
+        "socket.io-client": {
+          "version": "2.0.3",
+          "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-2.0.3.tgz",
+          "integrity": "sha1-bK9K/5+FsZ/ZG2zhPWmttWT4hzs=",
+          "optional": true,
+          "requires": {
+            "backo2": "1.0.2",
+            "base64-arraybuffer": "0.1.5",
+            "component-bind": "1.0.0",
+            "component-emitter": "1.2.1",
+            "debug": "2.6.9",
+            "engine.io-client": "3.1.6",
+            "has-cors": "1.1.0",
+            "indexof": "0.0.1",
+            "object-component": "0.0.3",
+            "parseqs": "0.0.5",
+            "parseuri": "0.0.5",
+            "socket.io-parser": "3.1.3",
+            "to-array": "0.1.4"
+          }
+        }
+      }
+    },
     "florincoind-rpc": {
       "version": "0.7.1",
       "resolved": "https://registry.npmjs.org/florincoind-rpc/-/florincoind-rpc-0.7.1.tgz",
@@ -2060,8 +2271,7 @@
     "fs.realpath": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
-      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
-      "dev": true
+      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
     },
     "gauge": {
       "version": "2.7.4",
@@ -2115,7 +2325,6 @@
       "version": "7.1.2",
       "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.2.tgz",
       "integrity": "sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==",
-      "dev": true,
       "requires": {
         "fs.realpath": "1.0.0",
         "inflight": "1.0.6",
@@ -2399,7 +2608,6 @@
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
       "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
-      "dev": true,
       "requires": {
         "once": "1.4.0",
         "wrappy": "1.0.2"
@@ -2420,6 +2628,16 @@
       "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.6.0.tgz",
       "integrity": "sha1-4/o1e3c9phnybpXwSdBVxyeW+Gs="
     },
+    "ipv6": {
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/ipv6/-/ipv6-3.1.3.tgz",
+      "integrity": "sha1-TZBk+cLa+g3RC4t9dv/KSq0xs7k=",
+      "requires": {
+        "cli": "0.4.5",
+        "cliff": "0.1.10",
+        "sprintf": "0.1.5"
+      }
+    },
     "irregular-plurals": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/irregular-plurals/-/irregular-plurals-1.4.0.tgz",
@@ -3127,7 +3345,6 @@
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
       "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
-      "dev": true,
       "requires": {
         "brace-expansion": "1.1.11"
       }
@@ -3317,6 +3534,11 @@
       "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.1.tgz",
       "integrity": "sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk="
     },
+    "network-byte-order": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/network-byte-order/-/network-byte-order-0.2.0.tgz",
+      "integrity": "sha1-asEb9Ev2ENrt2+kKCaXIF8bg0rM="
+    },
     "node-abi": {
       "version": "2.4.1",
       "resolved": "https://registry.npmjs.org/node-abi/-/node-abi-2.4.1.tgz",
@@ -3592,6 +3814,11 @@
         "pinkie": "2.0.4"
       }
     },
+    "pkginfo": {
+      "version": "0.3.1",
+      "resolved": "https://registry.npmjs.org/pkginfo/-/pkginfo-0.3.1.tgz",
+      "integrity": "sha1-Wyn2qB9wcXFC4J52W76rl7T4HiE="
+    },
     "plur": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/plur/-/plur-2.1.2.tgz",
@@ -4430,6 +4657,15 @@
         }
       }
     },
+    "socks5-client": {
+      "version": "0.3.6",
+      "resolved": "https://registry.npmjs.org/socks5-client/-/socks5-client-0.3.6.tgz",
+      "integrity": "sha1-QgW1eR8t93zwdSciJVj+TkasovE=",
+      "requires": {
+        "ipv6": "3.1.3",
+        "network-byte-order": "0.2.0"
+      }
+    },
     "source-map": {
       "version": "0.5.7",
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
@@ -4460,6 +4696,11 @@
         "extend-shallow": "3.0.2"
       }
     },
+    "sprintf": {
+      "version": "0.1.5",
+      "resolved": "https://registry.npmjs.org/sprintf/-/sprintf-0.1.5.tgz",
+      "integrity": "sha1-j4PjmpMXwaUCy324BQ5Rxnn27c8="
+    },
     "sprintf-js": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
@@ -4481,6 +4722,11 @@
         "tweetnacl": "0.14.5"
       }
     },
+    "stack-trace": {
+      "version": "0.0.10",
+      "resolved": "https://registry.npmjs.org/stack-trace/-/stack-trace-0.0.10.tgz",
+      "integrity": "sha1-VHxws0fo0ytOEI6hoqFZ5f3eGcA="
+    },
     "static-extend": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/static-extend/-/static-extend-0.1.2.tgz",
@@ -4907,6 +5153,32 @@
       "dev": true,
       "optional": true
     },
+    "winston": {
+      "version": "0.8.3",
+      "resolved": "https://registry.npmjs.org/winston/-/winston-0.8.3.tgz",
+      "integrity": "sha1-ZLar9M0Brcrv1QCTk7HY6L7BnbA=",
+      "requires": {
+        "async": "0.2.10",
+        "colors": "0.6.2",
+        "cycle": "1.0.3",
+        "eyes": "0.1.8",
+        "isstream": "0.1.2",
+        "pkginfo": "0.3.1",
+        "stack-trace": "0.0.10"
+      },
+      "dependencies": {
+        "async": {
+          "version": "0.2.10",
+          "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz",
+          "integrity": "sha1-trvgsGdLnXGXCMo43owjfLUmw9E="
+        },
+        "colors": {
+          "version": "0.6.2",
+          "resolved": "https://registry.npmjs.org/colors/-/colors-0.6.2.tgz",
+          "integrity": "sha1-JCP+ZnisDF2uiFLl0OW+CMmXq8w="
+        }
+      }
+    },
     "wordwrap": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
@@ -4944,6 +5216,14 @@
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
       "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68="
     },
+    "xxhash": {
+      "version": "0.2.4",
+      "resolved": "https://registry.npmjs.org/xxhash/-/xxhash-0.2.4.tgz",
+      "integrity": "sha1-i4pIFiz8zCG5IPpQAmEYfUAhbDk=",
+      "requires": {
+        "nan": "2.10.0"
+      }
+    },
     "yallist": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
diff --git a/package.json b/package.json
index d9f82408..d57b120b 100644
--- a/package.json
+++ b/package.json
@@ -29,6 +29,7 @@
   ],
   "dependencies": {
     "async": "^2.5.0",
+    "bitcoind-rpc": "^0.7.2",
     "bn.js": "^4.11.8",
     "body-parser": "^1.13.3",
     "colors": "^1.1.2",
@@ -45,12 +46,13 @@
     "levelup": "^2.0.0",
     "liftoff": "^2.2.0",
     "lodash": "^4.17.4",
-    "lru-cache": "^4.0.2",
+    "lru-cache": "^4.1.1",
     "memwatch-next": "^0.3.0",
     "mkdirp": "0.5.0",
     "path-is-absolute": "^1.0.0",
     "socket.io": "^1.4.5",
-    "socket.io-client": "^1.4.5"
+    "socket.io-client": "^1.4.5",
+    "xxhash": "^0.2.4"
   },
   "devDependencies": {
     "chai": "^3.5.0",
diff --git a/test/services/address/index.unit.js b/test/services/address/index.unit.js
index 1fd2ddc1..afa7744b 100644
--- a/test/services/address/index.unit.js
+++ b/test/services/address/index.unit.js
@@ -8,6 +8,7 @@ var Encoding  = require('../../../lib/services/address/encoding');
 var Readable = require('stream').Readable;
 var EventEmitter = require('events').EventEmitter;
 var bcoin = require('bcoin');
+var lodash = require('lodash');
 
 describe('Address Service', function() {
 
@@ -54,7 +55,7 @@ describe('Address Service', function() {
 
   describe('#getAddressHistory', function() {
 
-    it('should get the address history', function(done) {
+    it('should get the address history (null case)', function(done) {
 
       sandbox.stub(addressService, '_getAddressTxidHistory').callsArgWith(2, null, null);
       sandbox.stub(addressService, '_getAddressTxHistory').callsArgWith(1, null, []);
@@ -74,6 +75,222 @@ describe('Address Service', function() {
       });
     });
 
+    it('should get the sorted address history', function(done) {
+
+      var old_getAddressTxidHistory = addressService._getAddressTxidHistory;
+      addressService._getAddressTxidHistory = function(addr, options, cb) {
+        options.txIdList = [
+          {
+            txid: "d",
+            height: 10,
+          },
+          {
+            txid: "c",
+            height: 10,
+          },
+          {
+            txid: "a",
+            height: 101,
+          },
+          {
+            txid: "b",
+            height: 100,
+          },
+        ];
+        return cb();
+      };
+
+
+      var old_getAddressTxHistory = addressService._getAddressTxHistory;
+      addressService._getAddressTxHistory = function(options, cb) {
+        return cb(null, options.txIdList);
+      };
+
+      addressService.getAddressHistory(['a', 'b', 'c'], { from: 12, to: 14 }, function(err, res) {
+
+        if (err) {
+          return done(err);
+        }
+
+        expect(res.totalCount).equal(4);
+        expect(lodash.map(res.items,'txid')).to.be.deep.equal(['a','b','c','d']);
+
+        addressService._getAddressTxidHistory = old_getAddressTxHistory;
+        addressService._getAddressTxHistory = old_getAddressTxHistory;
+        done();
+      });
+    });
+
+    it('should remove duplicated items in history', function(done) {
+
+      var old_getAddressTxidHistory = addressService._getAddressTxidHistory;
+      addressService._getAddressTxidHistory = function(addr, options, cb) {
+        options.txIdList = [
+          {
+            txid: "b",
+            height: 10,
+          },
+          {
+            txid: "b",
+            height: 10,
+          },
+          {
+            txid: "d",
+            height: 101,
+          },
+          {
+            txid: "c",
+            height: 100,
+          },
+         {
+            txid: "d",
+            height: 101,
+          },
+        ];
+        return cb();
+      };
+
+
+      var old_getAddressTxHistory = addressService._getAddressTxHistory;
+      addressService._getAddressTxHistory = function(options, cb) {
+        return cb(null, options.txIdList);
+      };
+
+      addressService.getAddressHistory(['a', 'b', 'c'], { from: 12, to: 14 }, function(err, res) {
+
+        if (err) {
+          return done(err);
+        }
+
+        expect(res.totalCount).equal(3);
+        expect(lodash.map(res.items,'txid')).to.be.deep.equal(['d','c','b']);
+
+        addressService._getAddressTxidHistory = old_getAddressTxHistory;
+        addressService._getAddressTxHistory = old_getAddressTxHistory;
+        done();
+      });
+    });
+
+
+    describe('TxIdList cache', function() {
+      var list, old_getAddressTxidHistory, old_getAddressTxHistory;
+
+      beforeEach(function(done){
+        this.clock = sinon.useFakeTimers();
+        list = [];
+        for(let i=1000; i>0; i--) {
+          list.push({
+            txid: "txid" + i,
+            height: 1000  + i,
+
+          });
+        };
+        old_getAddressTxidHistory = addressService._getAddressTxidHistory;
+        // Note that this stub DOES NOT respect options.from/to as the real function
+        addressService._getAddressTxidHistory = function(addr, options, cb) {
+          options.txIdList = lodash.clone(list);
+          return cb();
+        };
+        old_getAddressTxHistory = addressService._getAddressTxHistory;
+
+        addressService._getAddressTxHistory = function(options, cb) {
+          return cb(null, options.txIdList);
+        };
+
+        addressService.getAddressHistory(['a', 'b', 'c'], { from: 0, to: 10 }, function(err, res, cacheUsed) {
+          if (err) {
+            return done(err);
+          }
+          expect(res.totalCount).equal(1000);
+          expect(res.items,'txid').to.be.deep.equal(list);
+          expect(cacheUsed).equal(false);
+          done();
+        });
+      });
+
+      afterEach(function(done){
+        this.clock.restore();
+
+        addressService._getAddressTxidHistory = old_getAddressTxHistory;
+        addressService._getAddressTxHistory = old_getAddressTxHistory;
+        done();
+      });
+
+
+      it('should not cache the address txlist history when from =0 ', function(done) {
+        addressService.getAddressHistory(['a', 'b', 'c'], { from: 0, to: 10 }, function(err, res, cacheUsed) {
+          if (err) {
+            return done(err);
+          }
+          expect(res.totalCount).equal(1000);
+          expect(res.items,'txid').to.be.deep.equal(list);
+          expect(cacheUsed).equal(false);
+          done();
+        });
+      });
+
+      it('should cache the address txlist history', function(done) {
+        addressService.getAddressHistory(['a', 'b', 'c'], { from: 1, to: 10 }, function(err, res, cacheUsed) {
+          if (err) {
+            return done(err);
+          }
+          expect(cacheUsed).equal(true);
+          expect(res.totalCount).equal(1000);
+          expect(res.items,'txid').to.be.deep.equal(list);
+          done();
+        });
+      });
+
+
+      it('should retrive cached list using cachekey', function(done) {
+        addressService.getAddressHistory([], { from: 1, to: 10, cacheKey: 977282097 }, function(err, res, cacheUsed) {
+          if (err) {
+            return done(err);
+          }
+          expect(cacheUsed).equal(true);
+          expect(res.totalCount).equal(1000);
+          expect(res.items,'txid').to.be.deep.equal(list);
+          done();
+        });
+      });
+
+   
+
+      it('should expire cache', function(done) {
+        this.clock.tick(35*1000);
+        addressService.getAddressHistory(['a', 'b', 'c'], { from: 1, to: 10 }, function(err, res, cacheUsed) {
+          if (err) {
+            return done(err);
+          }
+          expect(cacheUsed).equal(false);
+          expect(res.totalCount).equal(1000);
+          expect(res.items,'txid').to.be.deep.equal(list);
+          done();
+        });
+      });
+
+      it('should cache using the address as key', function(done) {
+        addressService.getAddressHistory(['a', 'b', 'c', 'd'], { from: 1, to: 10 }, function(err, res, cacheUsed) {
+          if (err) {
+            return done(err);
+          }
+          expect(cacheUsed).equal(false);
+          expect(res.totalCount).equal(1000);
+          expect(res.items,'txid').to.be.deep.equal(list);
+          addressService.getAddressHistory(['a', 'b', 'c', 'd'], { from: 1, to: 10 }, function(err, res, cacheUsed) {
+            if (err) {
+              return done(err);
+            }
+            expect(cacheUsed).equal(true);
+            expect(res.totalCount).equal(1000);
+            expect(res.items,'txid').to.be.deep.equal(list);
+            done();
+          });
+        });
+      });
+
+
+    });
   });
 
   describe('#_getAddressTxidHistory', function() {