diff --git a/package.json b/package.json
index d2309e50..d08c1e07 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,7 @@
     "bignumber.js": "^4.0.1",
     "bip39": "^2.3.1",
     "bitcoind-rpc": "^0.7.0",
+    "bitgo": "^3.3.6",
     "body-parser": "^1.15.1",
     "cookie-parser": "^1.4.3",
     "ethereumjs-tx": "^1.3.0",
diff --git a/yarn.lock b/yarn.lock
index 3890805a..f332a212 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -138,19 +138,19 @@ are-we-there-yet@~1.1.2:
     delegates "^1.0.0"
     readable-stream "^2.0.6"
 
-argparse@^0.1.16:
-  version "0.1.16"
-  resolved "https://registry.yarnpkg.com/argparse/-/argparse-0.1.16.tgz#cfd01e0fbba3d6caed049fbd758d40f65196f57c"
-  dependencies:
-    underscore "~1.7.0"
-    underscore.string "~2.4.0"
-
 argparse@^1.0.7:
   version "1.0.9"
   resolved "https://registry.yarnpkg.com/argparse/-/argparse-1.0.9.tgz#73d83bc263f86e97f8cc4f6bae1b0e90a7d22c86"
   dependencies:
     sprintf-js "~1.0.2"
 
+argparse@~0.1.16:
+  version "0.1.16"
+  resolved "https://registry.yarnpkg.com/argparse/-/argparse-0.1.16.tgz#cfd01e0fbba3d6caed049fbd758d40f65196f57c"
+  dependencies:
+    underscore "~1.7.0"
+    underscore.string "~2.4.0"
+
 arr-diff@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-2.0.0.tgz#8f3b827f955a8bd669697e4a4256ac3ceae356cf"
@@ -241,7 +241,7 @@ async-each@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
 
-async@^1.4.0, async@^1.5.2:
+async@^1.5.2:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
 
@@ -744,6 +744,14 @@ babel-plugin-transform-strict-mode@^6.24.1:
     babel-runtime "^6.22.0"
     babel-types "^6.24.1"
 
+babel-polyfill@^6.3.14:
+  version "6.23.0"
+  resolved "https://registry.yarnpkg.com/babel-polyfill/-/babel-polyfill-6.23.0.tgz#8364ca62df8eafb830499f699177466c3b03499d"
+  dependencies:
+    babel-runtime "^6.22.0"
+    core-js "^2.4.0"
+    regenerator-runtime "^0.10.0"
+
 babel-preset-es2015@^6.24.0:
   version "6.24.1"
   resolved "https://registry.yarnpkg.com/babel-preset-es2015/-/babel-preset-es2015-6.24.1.tgz#d44050d6bc2c9feea702aaf38d727a0210538939"
@@ -785,7 +793,13 @@ babel-register@^6.24.1:
     mkdirp "^0.5.1"
     source-map-support "^0.4.2"
 
-babel-runtime@^6.18.0, babel-runtime@^6.22.0:
+babel-runtime@^5.8.20:
+  version "5.8.38"
+  resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-5.8.38.tgz#1c0b02eb63312f5f087ff20450827b425c9d4c19"
+  dependencies:
+    core-js "^1.0.0"
+
+babel-runtime@^6.18.0, babel-runtime@^6.22.0, babel-runtime@^6.3.19, babel-runtime@^6.6.1:
   version "6.23.0"
   resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.23.0.tgz#0a9489f144de70efb3ce4300accdb329e2fc543b"
   dependencies:
@@ -844,7 +858,7 @@ balanced-match@^0.4.1:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-0.4.2.tgz#cb3f3e3c732dc0f01ee70b403f302e61d7709838"
 
-base-x@^1.1.0:
+base-x@^1.0.1, base-x@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/base-x/-/base-x-1.1.0.tgz#42d3d717474f9ea02207f6d1aa1f426913eeb7ac"
 
@@ -886,7 +900,7 @@ better-assert@~1.0.0:
   dependencies:
     callsite "1.0.0"
 
-big.js@^3.1.3:
+big.js@~3.1.3:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/big.js/-/big.js-3.1.3.tgz#4cada2193652eb3ca9ec8e55c9015669c9806978"
 
@@ -894,14 +908,18 @@ bigi@1.4.0, bigi@^1.1.0, bigi@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/bigi/-/bigi-1.4.0.tgz#90ac1aeac0a531216463bdb58f42c1e05c8407ac"
 
-bignumber.js@^4.0.0, bignumber.js@^4.0.1:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/bignumber.js/-/bignumber.js-4.0.2.tgz#2d1dc37ee5968867ecea90b6da4d16e68608d21d"
+bigi@~1.4.2:
+  version "1.4.2"
+  resolved "https://registry.yarnpkg.com/bigi/-/bigi-1.4.2.tgz#9c665a95f88b8b08fc05cfd731f561859d725825"
 
-"bignumber.js@git+https://github.com/debris/bignumber.js.git#94d7146671b9719e00a09c29b01a691bc85048c2":
+bignumber.js@^2.0.3, "bignumber.js@git+https://github.com/debris/bignumber.js.git#94d7146671b9719e00a09c29b01a691bc85048c2":
   version "2.0.7"
   resolved "git+https://github.com/debris/bignumber.js.git#94d7146671b9719e00a09c29b01a691bc85048c2"
 
+bignumber.js@^4.0.0, bignumber.js@^4.0.1, bignumber.js@~4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/bignumber.js/-/bignumber.js-4.0.2.tgz#2d1dc37ee5968867ecea90b6da4d16e68608d21d"
+
 binary-extensions@^1.0.0:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.8.0.tgz#48ec8d16df4377eae5fa5884682480af4d95c774"
@@ -926,6 +944,10 @@ bip66@^1.1.0, bip66@^1.1.3:
   dependencies:
     safe-buffer "^5.0.1"
 
+bitcoin-ops@^1.3.0, bitcoin-ops@~1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/bitcoin-ops/-/bitcoin-ops-1.3.0.tgz#6b126b585537bc679b02ed499f14450cffc37e13"
+
 bitcoind-rpc@^0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/bitcoind-rpc/-/bitcoind-rpc-0.7.0.tgz#dbf6249267ee328be48de57787042980092c8bf2"
@@ -946,35 +968,56 @@ bitcoinjs-lib@2.1.4:
     typeforce "^1.5.5"
     wif "^1.1.0"
 
-bitgo@^2.2.4:
-  version "2.2.4"
-  resolved "https://registry.yarnpkg.com/bitgo/-/bitgo-2.2.4.tgz#7a9c21457ee9ab01b987d1d1eacad1b4b7c34302"
+bitcoinjs-lib@~3.0.2:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/bitcoinjs-lib/-/bitcoinjs-lib-3.0.3.tgz#3470eed5d6778b5404b770effbd0fcbb2bd89655"
   dependencies:
-    argparse "^0.1.16"
+    bigi "^1.4.0"
+    bip66 "^1.1.0"
+    bitcoin-ops "^1.3.0"
+    bs58check "^2.0.0"
+    create-hash "^1.1.0"
+    create-hmac "^1.1.3"
+    ecurve "^1.0.0"
+    merkle-lib "^2.0.10"
+    pushdata-bitcoin "^1.0.1"
+    randombytes "^2.0.1"
+    typeforce "^1.8.7"
+    varuint-bitcoin "^1.0.4"
+    wif "^2.0.1"
+
+bitgo@^3.3.6:
+  version "3.3.6"
+  resolved "https://registry.yarnpkg.com/bitgo/-/bitgo-3.3.6.tgz#cfddd9024ddbbf79d0ab715c321fb16af2d86964"
+  dependencies:
+    argparse "~0.1.16"
     assert "0.4.9"
-    big.js "^3.1.3"
+    big.js "~3.1.3"
     bigi "1.4.0"
+    bignumber.js "~4.0.2"
     bitcoinjs-lib "2.1.4"
-    body-parser "^1.10.2"
+    body-parser "~1.17.2"
     bs58 "2.0.1"
     bs58check "1.0.4"
-    create-hmac "^1.1.4"
-    ecurve "^1.0.2"
+    create-hmac "~1.1.4"
+    ecurve "~1.0.2"
     eol "0.5.0"
-    express "^4.11.1"
+    express "~4.15.3"
     http-proxy "1.11.1"
     lodash "4.13.1"
     minimist "0.2.0"
-    moment "^2.11.2"
+    moment "~2.18.1"
     morgan "1.5.3"
+    prova-lib "0.2.3"
     q "1.1.2"
+    ripple-lib "~0.17.7"
     sanitize-html "1.13.0"
-    superagent "^1.4.0"
-    superagent-proxy "^1.0.0"
+    superagent "~3.5.2"
+    superagent-proxy "~1.0.0"
     underscore.string "2.4.0"
   optionalDependencies:
-    ethereumjs-abi "^0.6.2"
-    ethereumjs-util "^4.4.1"
+    ethereumjs-abi "~0.6.2"
+    ethereumjs-util "~4.4.1"
     secp256k1 "3.2.5"
 
 bl@^1.0.0:
@@ -997,11 +1040,15 @@ bluebird@^3.0.0, bluebird@^3.3.5:
   version "3.5.0"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.0.tgz#791420d7f551eea2897453a8a77653f96606d67c"
 
+bn.js@^3.1.1:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-3.3.0.tgz#1138e577889fdc97bbdab51844f2190dfc0ae3d7"
+
 bn.js@^4.10.0, bn.js@^4.11.3, bn.js@^4.4.0, bn.js@^4.8.0:
   version "4.11.6"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.6.tgz#53344adb14617a13f6e8dd2ce28905d1c0ba3215"
 
-body-parser@^1.10.2, body-parser@^1.15.1:
+body-parser@^1.15.1, body-parser@~1.17.2:
   version "1.17.2"
   resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.17.2.tgz#f8892abc8f9e627d42aedafbca66bf5ab99104ee"
   dependencies:
@@ -1053,7 +1100,7 @@ breakable@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/breakable/-/breakable-1.0.0.tgz#784a797915a38ead27bad456b5572cb4bbaa78c1"
 
-brorand@^1.0.1:
+brorand@^1.0.1, brorand@^1.0.5:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/brorand/-/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
 
@@ -1083,12 +1130,25 @@ bs58@^3.1.0:
   dependencies:
     base-x "^1.1.0"
 
+bs58@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/bs58/-/bs58-4.0.1.tgz#be161e76c354f6f788ae4071f63f34e8c4f0a42a"
+  dependencies:
+    base-x "^3.0.2"
+
 bs58check@1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/bs58check/-/bs58check-1.0.4.tgz#94180ab90821fe250496151f60d0eb3d9f321198"
   dependencies:
     bs58 "^2.0.1"
 
+bs58check@<3.0.0, bs58check@^2.0.0, bs58check@~2.0.1:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/bs58check/-/bs58check-2.0.2.tgz#06f63b01c2fa6173033c90eb87f1fe3d2e13d89a"
+  dependencies:
+    bs58 "^4.0.0"
+    create-hash "^1.1.0"
+
 bs58check@^1.0.5, bs58check@^1.0.6, bs58check@^1.0.8:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/bs58check/-/bs58check-1.3.4.tgz#c52540073749117714fa042c3047eb8f9151cbf8"
@@ -1362,7 +1422,7 @@ component-bind@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/component-bind/-/component-bind-1.0.0.tgz#00c608ab7dcd93897c0009651b1d3a8e1e73bbd1"
 
-component-emitter@1.2.1, component-emitter@^1.2.0, component-emitter@~1.2.0:
+component-emitter@1.2.1, component-emitter@^1.2.0:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.2.1.tgz#137918d6d78283f7df7a6b7c5a63e140e69425e6"
 
@@ -1435,7 +1495,7 @@ cookie@0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.3.1.tgz#e7e0a1f9ef43b4c8ba925c5c5a96e806d16873bb"
 
-cookiejar@2.0.6, cookiejar@^2.0.6:
+cookiejar@^2.0.6:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/cookiejar/-/cookiejar-2.0.6.tgz#0abf356ad00d1c5a219d88d44518046dd026acfe"
 
@@ -1446,6 +1506,10 @@ core-assert@^0.2.0:
     buf-compare "^1.0.0"
     is-error "^2.2.0"
 
+core-js@^1.0.0:
+  version "1.2.7"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-1.2.7.tgz#652294c14651db28fa93bd2d5ff2983a4f08c636"
+
 core-js@^2.0.0, core-js@^2.4.0:
   version "2.4.1"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.4.1.tgz#4de911e667b0eae9124e34254b53aea6fc618d3e"
@@ -1469,7 +1533,7 @@ create-hash@^1.1.0, create-hash@^1.1.1, create-hash@^1.1.2:
     ripemd160 "^2.0.0"
     sha.js "^2.4.0"
 
-create-hmac@^1.1.3, create-hmac@^1.1.4:
+create-hmac@^1.1.3, create-hmac@^1.1.4, create-hmac@~1.1.4:
   version "1.1.6"
   resolved "https://registry.yarnpkg.com/create-hmac/-/create-hmac-1.1.6.tgz#acb9e221a4e17bdb076e90657c42b93e3726cf06"
   dependencies:
@@ -1575,6 +1639,10 @@ decamelize@^1.0.0, decamelize@^1.1.2:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
 
+decimal.js@^5.0.8:
+  version "5.0.8"
+  resolved "https://registry.yarnpkg.com/decimal.js/-/decimal.js-5.0.8.tgz#b48c3fb7d73a2d4d4940e0b38f1cd21db5b367ce"
+
 decompress-response@^3.2.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/decompress-response/-/decompress-response-3.3.0.tgz#80a4dd323748384bfa248083622aedec982adff3"
@@ -1742,7 +1810,7 @@ ecdsa-sig-formatter@1.0.9:
     base64url "^2.0.0"
     safe-buffer "^5.0.1"
 
-ecurve@^1.0.0, ecurve@^1.0.2:
+ecurve@^1.0.0, ecurve@~1.0.2, ecurve@~1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/ecurve/-/ecurve-1.0.5.tgz#d148e8fe50a674f983bb5bae09da0ea23e10535e"
   dependencies:
@@ -1756,6 +1824,15 @@ ee-first@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
 
+elliptic@^5.1.0:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-5.2.1.tgz#fa294b6563c6ddbc9ba3dc8594687ae840858f10"
+  dependencies:
+    bn.js "^3.1.1"
+    brorand "^1.0.1"
+    hash.js "^1.0.0"
+    inherits "^2.0.1"
+
 elliptic@^6.2.3:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.4.0.tgz#cac9af8762c85836187003c8dfe193e5e2eae5df"
@@ -1913,7 +1990,7 @@ ethereum-common@^0.0.18:
   version "0.0.18"
   resolved "https://registry.yarnpkg.com/ethereum-common/-/ethereum-common-0.0.18.tgz#2fdc3576f232903358976eb39da783213ff9523f"
 
-ethereumjs-abi@^0.6.2:
+ethereumjs-abi@~0.6.2:
   version "0.6.4"
   resolved "https://registry.yarnpkg.com/ethereumjs-abi/-/ethereumjs-abi-0.6.4.tgz#9ba1bb056492d00c27279f6eccd4d58275912c1a"
   dependencies:
@@ -1927,7 +2004,7 @@ ethereumjs-tx@^1.3.0:
     ethereum-common "^0.0.18"
     ethereumjs-util "^5.0.0"
 
-ethereumjs-util@^4.3.0, ethereumjs-util@^4.4.0, ethereumjs-util@^4.4.1:
+ethereumjs-util@^4.3.0, ethereumjs-util@^4.4.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-4.5.0.tgz#3e9428b317eebda3d7260d854fddda954b1f1bc6"
   dependencies:
@@ -1950,6 +2027,16 @@ ethereumjs-util@^5.0.0:
     rlp "^2.0.0"
     secp256k1 "^3.0.1"
 
+ethereumjs-util@~4.4.1:
+  version "4.4.1"
+  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-4.4.1.tgz#6316bfbc8a01c8767a78620928ed79ef424c3f92"
+  dependencies:
+    bn.js "^4.8.0"
+    create-hash "^1.1.2"
+    keccakjs "^0.2.0"
+    rlp "^2.0.0"
+    secp256k1 "^3.0.1"
+
 ethereumjs-wallet@^0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/ethereumjs-wallet/-/ethereumjs-wallet-0.6.0.tgz#82763b1697ee7a796be7155da9dfb49b2f98cfdb"
@@ -2038,7 +2125,7 @@ express-ws@^3.0.0:
   dependencies:
     ws "^2.0.0"
 
-express@^4.11.1, express@^4.13.4:
+express@^4.13.4, express@~4.15.3:
   version "4.15.3"
   resolved "https://registry.yarnpkg.com/express/-/express-4.15.3.tgz#bab65d0f03aa80c358408972fc700f916944b662"
   dependencies:
@@ -2071,7 +2158,7 @@ express@^4.11.1, express@^4.13.4:
     utils-merge "1.0.0"
     vary "~1.1.1"
 
-extend@3, extend@3.0.0, extend@^3.0.0, extend@~3.0.0:
+extend@3, extend@^3.0.0, extend@~3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.0.tgz#5a474353b9f3353ddd8176dfd37b91c83a46f1d4"
 
@@ -2174,14 +2261,6 @@ forever-agent@~0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/forever-agent/-/forever-agent-0.6.1.tgz#fbc71f0c41adeb37f96c577ad1ed42d8fdacca91"
 
-form-data@1.0.0-rc3:
-  version "1.0.0-rc3"
-  resolved "https://registry.yarnpkg.com/form-data/-/form-data-1.0.0-rc3.tgz#d35bc62e7fbc2937ae78f948aaa0d38d90607577"
-  dependencies:
-    async "^1.4.0"
-    combined-stream "^1.0.5"
-    mime-types "^2.1.3"
-
 form-data@1.0.0-rc4:
   version "1.0.0-rc4"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-1.0.0-rc4.tgz#05ac6bc22227b43e4461f488161554699d4f8b5e"
@@ -2190,7 +2269,7 @@ form-data@1.0.0-rc4:
     combined-stream "^1.0.5"
     mime-types "^2.1.10"
 
-form-data@~2.1.1:
+form-data@^2.1.1, form-data@~2.1.1:
   version "2.1.4"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.1.4.tgz#33c183acf193276ecaa98143a69e94bfee1750d1"
   dependencies:
@@ -2198,10 +2277,14 @@ form-data@~2.1.1:
     combined-stream "^1.0.5"
     mime-types "^2.1.12"
 
-formidable@^1.0.17, formidable@~1.0.14:
+formidable@^1.0.17:
   version "1.0.17"
   resolved "https://registry.yarnpkg.com/formidable/-/formidable-1.0.17.tgz#ef5491490f9433b705faa77249c99029ae348559"
 
+formidable@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/formidable/-/formidable-1.1.1.tgz#96b8886f7c3c3508b932d6bd70c4d3a88f35f1a9"
+
 forwarded@~0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.1.0.tgz#19ef9874c4ae1c297bcf078fde63a09b66a84363"
@@ -2583,7 +2666,7 @@ http-signature@~1.1.0:
     jsprim "^1.2.2"
     sshpk "^1.7.0"
 
-https-proxy-agent@1:
+https-proxy-agent@1, https-proxy-agent@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-1.0.0.tgz#35f7da6c48ce4ddbfa264891ac593ee5ff8671e6"
   dependencies:
@@ -2979,6 +3062,10 @@ jsonify@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
 
+jsonschema@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/jsonschema/-/jsonschema-1.1.1.tgz#3cede8e3e411d377872eefbc9fdf26383cbc3ed9"
+
 jsonwebtoken@5.4.x:
   version "5.4.1"
   resolved "https://registry.yarnpkg.com/jsonwebtoken/-/jsonwebtoken-5.4.1.tgz#2055c639195ffe56314fa6a51df02468186a9695"
@@ -3145,7 +3232,11 @@ lodash@4.13.1:
   version "4.13.1"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.13.1.tgz#83e4b10913f48496d4d16fec4a560af2ee744b68"
 
-lodash@^4.17.2, lodash@^4.2.0:
+lodash@^3.1.0, lodash@^3.10.1:
+  version "3.10.1"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
+
+lodash@^4.12.0, lodash@^4.17.2, lodash@^4.2.0:
   version "4.17.4"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
 
@@ -3246,7 +3337,11 @@ merge-descriptors@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
 
-methods@^1.1.1, methods@~1.1.1, methods@~1.1.2:
+merkle-lib@^2.0.10:
+  version "2.0.10"
+  resolved "https://registry.yarnpkg.com/merkle-lib/-/merkle-lib-2.0.10.tgz#82b8dbae75e27a7785388b73f9d7725d0f6f3326"
+
+methods@^1.1.1, methods@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
 
@@ -3278,7 +3373,7 @@ mime-db@~1.27.0:
   version "1.27.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.27.0.tgz#820f572296bbd20ec25ed55e5b5de869e5436eb1"
 
-mime-types@^2.1.10, mime-types@^2.1.12, mime-types@^2.1.3, mime-types@~2.1.11, mime-types@~2.1.15, mime-types@~2.1.7:
+mime-types@^2.1.10, mime-types@^2.1.12, mime-types@~2.1.11, mime-types@~2.1.15, mime-types@~2.1.7:
   version "2.1.15"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.15.tgz#a4ebf5064094569237b8cf70046776d09fc92aed"
   dependencies:
@@ -3332,7 +3427,7 @@ moment@2.14.1:
   version "2.14.1"
   resolved "https://registry.yarnpkg.com/moment/-/moment-2.14.1.tgz#b35b27c47e57ed2ddc70053d6b07becdb291741c"
 
-moment@^2.11.2, moment@^2.17.0:
+moment@^2.17.0, moment@~2.18.1:
   version "2.18.1"
   resolved "https://registry.yarnpkg.com/moment/-/moment-2.18.1.tgz#c36193dd3ce1c2eed2adb7c802dbbc77a81b1c0f"
 
@@ -3564,6 +3659,10 @@ optionator@^0.8.1:
     type-check "~0.3.2"
     wordwrap "~1.0.0"
 
+options@>=0.0.5:
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/options/-/options-0.0.6.tgz#ec22d312806bb53e731773e7cdaefcf1c643128f"
+
 os-homedir@^1.0.0, os-homedir@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
@@ -3962,6 +4061,20 @@ promise-sequential@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/promise-sequential/-/promise-sequential-1.1.1.tgz#f79e8950ef86e7a7a85bf320452643592f6d2fb2"
 
+prova-lib@0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/prova-lib/-/prova-lib-0.2.3.tgz#b3dff03a5ddfb4805e215e784525c3b2bb42dea5"
+  dependencies:
+    bigi "~1.4.2"
+    bitcoin-ops "~1.3.0"
+    bitcoinjs-lib "~3.0.2"
+    bs58check "~2.0.1"
+    ecurve "~1.0.5"
+    typeforce "~1.10.6"
+    varuint-bitcoin "~1.0.4"
+  optionalDependencies:
+    secp256k1 "3.2.5"
+
 proxy-addr@~1.1.4:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/proxy-addr/-/proxy-addr-1.1.4.tgz#27e545f6960a44a627d9b44467e35c1b6b4ce2f3"
@@ -3997,6 +4110,12 @@ punycode@^1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
 
+pushdata-bitcoin@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/pushdata-bitcoin/-/pushdata-bitcoin-1.0.1.tgz#15931d3cd967ade52206f523aa7331aef7d43af7"
+  dependencies:
+    bitcoin-ops "^1.3.0"
+
 q@1.1.2, q@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/q/-/q-1.1.2.tgz#6357e291206701d99f197ab84e57e8ad196f2a89"
@@ -4009,10 +4128,6 @@ q@2.0.x:
     pop-iterate "^1.0.1"
     weak-map "^1.0.5"
 
-qs@2.3.3:
-  version "2.3.3"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-2.3.3.tgz#e9e85adbe75da0bbe4c8e0476a086290f863b404"
-
 qs@6.4.0, qs@^6.1.0, qs@~6.4.0:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
@@ -4089,15 +4204,6 @@ read-pkg@^2.0.0:
     normalize-package-data "^2.3.2"
     path-type "^2.0.0"
 
-readable-stream@1.0.27-1:
-  version "1.0.27-1"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.0.27-1.tgz#6b67983c20357cefd07f0165001a16d710d91078"
-  dependencies:
-    core-util-is "~1.0.0"
-    inherits "~2.0.1"
-    isarray "0.0.1"
-    string_decoder "~0.10.x"
-
 readable-stream@1.0.31:
   version "1.0.31"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.0.31.tgz#8f2502e0bc9e3b0da1b94520aabb4e2603ecafae"
@@ -4162,10 +4268,6 @@ redent@^1.0.0:
     indent-string "^2.1.0"
     strip-indent "^1.0.1"
 
-reduce-component@1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/reduce-component/-/reduce-component-1.0.1.tgz#e0c93542c574521bea13df0f9488ed82ab77c5da"
-
 referrer-policy@1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/referrer-policy/-/referrer-policy-1.1.0.tgz#35774eb735bf50fb6c078e83334b472350207d79"
@@ -4343,6 +4445,69 @@ ripemd160@^2.0.0, ripemd160@^2.0.1:
     hash-base "^2.0.0"
     inherits "^2.0.1"
 
+ripple-address-codec@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/ripple-address-codec/-/ripple-address-codec-2.0.1.tgz#eddbe3a7960d2e02c5c1c74fb9a9fa0d2dfb6571"
+  dependencies:
+    hash.js "^1.0.3"
+    x-address-codec "^0.7.0"
+
+ripple-binary-codec@^0.1.0, ripple-binary-codec@^0.1.10:
+  version "0.1.10"
+  resolved "https://registry.yarnpkg.com/ripple-binary-codec/-/ripple-binary-codec-0.1.10.tgz#933424222c305c582973392f808b6fa9995e6069"
+  dependencies:
+    babel-runtime "^6.6.1"
+    bn.js "^4.11.3"
+    create-hash "^1.1.2"
+    decimal.js "^5.0.8"
+    inherits "^2.0.1"
+    lodash "^4.12.0"
+    ripple-address-codec "^2.0.1"
+
+ripple-hashes@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/ripple-hashes/-/ripple-hashes-0.3.0.tgz#c5af8f36114a2793a1b9d14bbc4077e19ee851e8"
+  dependencies:
+    bignumber.js "^2.0.3"
+    create-hash "^1.1.2"
+    ripple-address-codec "^2.0.1"
+    ripple-binary-codec "^0.1.0"
+
+ripple-keypairs@^0.10.0:
+  version "0.10.0"
+  resolved "https://registry.yarnpkg.com/ripple-keypairs/-/ripple-keypairs-0.10.0.tgz#dcd7e0bc8f0cb8aa8daf9aebcb641f81a8c58132"
+  dependencies:
+    babel-runtime "^5.8.20"
+    bn.js "^3.1.1"
+    brorand "^1.0.5"
+    elliptic "^5.1.0"
+    hash.js "^1.0.3"
+    ripple-address-codec "^2.0.1"
+
+ripple-lib-transactionparser@^0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/ripple-lib-transactionparser/-/ripple-lib-transactionparser-0.6.0.tgz#b694af8a30593597a6c95dd64fb3b9eac085db8d"
+  dependencies:
+    bignumber.js "^2.0.3"
+    lodash "^3.10.1"
+
+ripple-lib@~0.17.7:
+  version "0.17.7"
+  resolved "https://registry.yarnpkg.com/ripple-lib/-/ripple-lib-0.17.7.tgz#33b0202f22114300863f55576025851a1d7fe6b0"
+  dependencies:
+    babel-polyfill "^6.3.14"
+    babel-runtime "^6.3.19"
+    bignumber.js "^2.0.3"
+    https-proxy-agent "^1.0.0"
+    jsonschema "^1.1.1"
+    lodash "^3.1.0"
+    ripple-address-codec "^2.0.1"
+    ripple-binary-codec "^0.1.10"
+    ripple-hashes "^0.3.0"
+    ripple-keypairs "^0.10.0"
+    ripple-lib-transactionparser "^0.6.0"
+    ws "^1.0.1"
+
 rlp@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/rlp/-/rlp-2.0.0.tgz#9db384ff4b89a8f61563d92395d8625b18f3afb0"
@@ -4746,29 +4911,13 @@ strip-json-comments@~2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
 
-superagent-proxy@^1.0.0, superagent-proxy@^1.0.1:
+superagent-proxy@^1.0.1, superagent-proxy@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/superagent-proxy/-/superagent-proxy-1.0.2.tgz#92d3660578f618ed43a82cf8cac799fe2938ba2d"
   dependencies:
     debug "2"
     proxy-agent "2"
 
-superagent@^1.4.0:
-  version "1.8.5"
-  resolved "https://registry.yarnpkg.com/superagent/-/superagent-1.8.5.tgz#1c0ddc3af30e80eb84ebc05cb2122da8fe940b55"
-  dependencies:
-    component-emitter "~1.2.0"
-    cookiejar "2.0.6"
-    debug "2"
-    extend "3.0.0"
-    form-data "1.0.0-rc3"
-    formidable "~1.0.14"
-    methods "~1.1.1"
-    mime "1.3.4"
-    qs "2.3.3"
-    readable-stream "1.0.27-1"
-    reduce-component "1.0.1"
-
 superagent@^2.0.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/superagent/-/superagent-2.3.0.tgz#703529a0714e57e123959ddefbce193b2e50d115"
@@ -4784,6 +4933,21 @@ superagent@^2.0.0:
     qs "^6.1.0"
     readable-stream "^2.0.5"
 
+superagent@~3.5.2:
+  version "3.5.2"
+  resolved "https://registry.yarnpkg.com/superagent/-/superagent-3.5.2.tgz#3361a3971567504c351063abeaae0faa23dbf3f8"
+  dependencies:
+    component-emitter "^1.2.0"
+    cookiejar "^2.0.6"
+    debug "^2.2.0"
+    extend "^3.0.0"
+    form-data "^2.1.1"
+    formidable "^1.1.1"
+    methods "^1.1.1"
+    mime "^1.3.4"
+    qs "^6.1.0"
+    readable-stream "^2.0.5"
+
 supports-color@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
@@ -4946,12 +5110,18 @@ type-is@~1.6.15:
     media-typer "0.3.0"
     mime-types "~2.1.15"
 
-typeforce@^1.5.5:
+typeforce@^1.5.5, typeforce@^1.8.7:
   version "1.11.1"
   resolved "https://registry.yarnpkg.com/typeforce/-/typeforce-1.11.1.tgz#ab66f3b094856d00ed0c8913b0742d3dabfafe62"
   dependencies:
     inherits "^2.0.1"
 
+typeforce@~1.10.6:
+  version "1.10.6"
+  resolved "https://registry.yarnpkg.com/typeforce/-/typeforce-1.10.6.tgz#71bdca35b4e635b61245371b57c008cedfbec4db"
+  dependencies:
+    inherits "^2.0.1"
+
 uid-number@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/uid-number/-/uid-number-0.0.6.tgz#0ea10e8035e8eb5b8e4449f06da1c730663baa81"
@@ -4960,6 +5130,10 @@ uid2@0.0.3:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/uid2/-/uid2-0.0.3.tgz#483126e11774df2f71b8b639dcd799c376162b82"
 
+ultron@1.0.x:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.0.2.tgz#ace116ab557cd197386a4e88f4685378c8b2e4fa"
+
 ultron@~1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.1.0.tgz#b07a2e6a541a815fc6a34ccd4533baec307ca864"
@@ -5058,6 +5232,10 @@ validate-npm-package-license@^3.0.1:
     spdx-correct "~1.0.0"
     spdx-expression-parse "~1.0.0"
 
+varuint-bitcoin@^1.0.4, varuint-bitcoin@~1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/varuint-bitcoin/-/varuint-bitcoin-1.0.4.tgz#d812c5dae16e32f60544b6adee1d4be1307d0283"
+
 vary@~1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.1.tgz#67535ebb694c1d52257457984665323f587e8d37"
@@ -5112,6 +5290,12 @@ wif@^1.1.0:
   dependencies:
     bs58check "^1.0.6"
 
+wif@^2.0.1:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/wif/-/wif-2.0.6.tgz#08d3f52056c66679299726fade0d432ae74b4704"
+  dependencies:
+    bs58check "<3.0.0"
+
 window-size@^0.1.2:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.4.tgz#f8e1aa1ee5a53ec5bf151ffa09742a6ad7697876"
@@ -5173,6 +5357,13 @@ write-pkg@^2.0.0:
     sort-keys "^1.1.2"
     write-json-file "^2.0.0"
 
+ws@^1.0.1:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-1.1.4.tgz#57f40d036832e5f5055662a397c4de76ed66bf61"
+  dependencies:
+    options ">=0.0.5"
+    ultron "1.0.x"
+
 ws@^2.0.0, ws@~2.3.1:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/ws/-/ws-2.3.1.tgz#6b94b3e447cb6a363f785eaf94af6359e8e81c80"
@@ -5187,6 +5378,12 @@ ws@^3.0.0:
     safe-buffer "~5.0.1"
     ultron "~1.1.0"
 
+x-address-codec@^0.7.0:
+  version "0.7.2"
+  resolved "https://registry.yarnpkg.com/x-address-codec/-/x-address-codec-0.7.2.tgz#2a2f7bb00278520bd13733a7959a05443d6802e0"
+  dependencies:
+    base-x "^1.0.1"
+
 x-xss-protection@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/x-xss-protection/-/x-xss-protection-1.0.0.tgz#898afb93869b24661cf9c52f9ee8db8ed0764dd9"