diff --git a/etc/certs.json b/etc/certs.json
deleted file mode 100644
index c9734c2a4..000000000
--- a/etc/certs.json
+++ /dev/null
@@ -1,152 +0,0 @@
-[
-  "ebd41040e4bb3ec742c9e381d31ef2a41a48b6685c96e7cef3c1df6cd4331c99",
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-]
diff --git a/lib/bip70/certs.js b/lib/bip70/certs.js
new file mode 100644
index 000000000..88a7d008d
--- /dev/null
+++ b/lib/bip70/certs.js
@@ -0,0 +1,152 @@
+module.exports = [
+  'ebd41040e4bb3ec742c9e381d31ef2a41a48b6685c96e7cef3c1df6cd4331c99',
+  'ca42dd41745fd0b81eb902362cf9d8bf719da1bd1b1efc946f5b4c99f42c1b9e',
+  'eb04cf5eb1f39afa762f2bb120f296cba520c1b97db1589565b81cb9a17b7244',
+  '6dc47172e01cbcb0bf62580d895fe2b8ac9ad4f873801e0c10b9c837d21eb177',
+  '16af57a9f676b0ab126095aa5ebadef22ab31119d644ac95cd4b93dbf3f26aeb',
+  '8c7209279ac04e275e16d07fd3b775e80154b5968046e31f52dd25766324e9a7',
+  '687fa451382278fff0c8b11f8d43d576671c6eb2bceab413fb83d965d06d2ff2',
+  '0791ca0749b20782aad3c7d7bd0cdfc9485835843eb2d7996009ce43ab6c6927',
+  '8095210805db4bbc355e4428d8fd6ec2cde3ab5fb97a9942988eb8f4dcd06016',
+  '73c176434f1bc6d5adf45b0e76e727287c8de57616c1e6e6141a2b2cbc7d8e4c',
+  'af8b6762a1e528228161a95d5c559ee266278f75d79e830189a503506abd6b4c',
+  'ff856a2d251dcd88d36656f450126798cfabaade40799c722de4d2b5db36a73a',
+  'ca2d82a08677072f8ab6764ff035676cfe3e5e325e012172df3f92096db79b85',
+  'a0459b9f63b22559f5fa5d4c6db3f9f72ff19342033578f073bf1d1b46cbb912',
+  'a0234f3bc8527ca5628eec81ad5d69895da5680dc91d1cb8477f33f878b95b0b',
+  '69fac9bd55fb0ac78d53bbee5cf1d597989fd0aaab20a25151bdf1733ee7d122',
+  'd8e0febc1db2e38d00940f37d27d41344d993e734b99d5656d9778d4d8143624',
+  'd7a7a0fb5d7e2731d771e9484ebcdef71d5f0c3e0a2948782bc83ee0ea699ef4',
+  'bd81ce3b4f6591d11a67b5fc7a47fdef25521bf9aa4e18b9e3df2e34a7803be8',
+  '3f06e55681d496f5be169eb5389f9f2b8ff61e1708df6881724849cd5d27cb69',
+  'a45ede3bbbf09c8ae15c72efc07268d693a21c996fd51e67ca079460fd6d8873',
+  '85a0dd7dd720adb7ff05f83d542b209dc7ff4528f7d677b18389fea5e5c49e86',
+  '18f1fc7f205df8adddeb7fe007dd57e3af375a9c4d8d73546bf4f1fed1e18d35',
+  'e75e72ed9f560eec6eb4800073a43fc3ad19195a392282017895974a99026b6c',
+  '7908b40314c138100b518d0735807ffbfcf8518a0095337105ba386b153dd927',
+  '6ea54741d004667eed1b4816634aa3a79e6e4b96950f8279dafc8d9bd8812137',
+  '0c258a12a5674aef25f28ba7dcfaeceea348e541e6f5cc4ee63b71b361606ac3',
+  'ef3cb417fc8ebf6f97876c9e4ece39de1ea5fe649141d1028b7d11c0b2298ced',
+  'cecddc905099d8dadfc5b1d209b737cbe2c18cfb2c10c0ff0bcf0d3286fc1aa2',
+  'c3846bf24b9e93ca64274c0ec67c1ecc5e024ffcacd2d74019350e81fe546ae4',
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+  'b9bea7860a962ea3611dab97ab6da3e21c1068b97d55575ed0e11279c11c8932',
+  'a22dba681e97376e2d397d728aae3a9b6296b9fdba60bc2e11f647f2c675fb37',
+  '41c923866ab4cad6b7ad578081582e020797a6cbdf4fff78ce8396b38937d7f5',
+  '327a3d761abadea034eb998406275cb1a4776efdae2fdf6d0168ea1c4f5567d0',
+  'e3b6a2db2ed7ce48842f7ac53241c7b71d54144bfb40c11f3f1d0b42f5eea12d',
+  'b6191a50d0c3977f7da99bcdaac86a227daeb9679ec70ba3b0c9d92271c170d3',
+  '960adf0063e96356750c2965dd0a0867da0b9cbd6e77714aeafb2349ab393da3',
+  'c0a6f4dc63a24bfdcf54ef2a6a082a0a72de35803e2ff5ff527ae5d87206dfd5',
+  'e4c73430d7a5b50925df43370a0d216e9a79b9d6db8373a0c69eb1cc31c7c52a',
+  '0f4e9cdd264b025550d170806340214fe94434c9b02f697ec710fc5feafb5e38',
+  '35ae5bddd8f7ae635cffba5682a8f00b95f48462c7108ee9a0e5292b074aafb2',
+  'eaa962c4fa4a6bafebe415196d351ccd888d4f53f3fa8ae6d7c466a94e6042bb',
+  'e28393773da845a679f2080cc7fb44a3b7a1c3792cb7eb7729fdcb6a8d99aea7',
+  '2d47437de17951215a12f3c58e51c729a58026ef1fcc0a5fb3d9dc012f600d19',
+  'b478b812250df878635c2aa7ec7d155eaa625ee82916e2cd294361886cd1fbd4',
+  'a4310d50af18a6447190372a86afaf8b951ffb431d837f1e5688b45971ed1557',
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+  '5edb7ac43b82a06a8761e8d7be4979ebf2611f7dd79bf91c1c6b566a219ed766',
+  '2399561127a57125de8cefea610ddf2fa078b5c8067f4e828290bfb860e84b3c',
+  '69ddd7ea90bb57c93e135dc85ea6fcd5480b603239bdc454fc758b2a26cf7f79',
+  '6c61dac3a2def031506be036d2a6fe401994fbd13df9c8d466599274c446ec98',
+  '668c83947da63b724bece1743c31a0e6aed0db8ec5b31be377bb784f91b6716f',
+  'ecc3e9c3407503bee091aa952f41348ff88baa863b2264befac807901574e939',
+  'f9e67d336c51002ac054c632022d66dda2e7e3fff10ad061ed31d8bbb410cfb2',
+  'bf0feefb9e3a581ad5f9e9db7589985743d261085c4d314f6f5d7259aa421612',
+  '03950fb49a531f3e1991942398dfa9e0ea32d7ba1cdd9bc85db57ed9400b434a',
+  '3c5f81fea5fab82c64bfa2eaecafcde8e077fc8620a7cae537163df36edbf378',
+  'cbb522d7b7f127ad6a0113865bdf1cd4102e7d0759af635a7cf4720dc963c53b',
+  '04048028bf1f2864d48f9ad4d83294366a828856553f3b14303f90147f5d40ef',
+  '2530cc8e98321502bad96f9b1fba1b099e2d299e0f4548bb914f363bc0d4531f',
+  '063e4afac491dfd332f3089b8542e94617d893d7fe944e10a7937ee29d9693c0',
+  '136335439334a7698016a0d324de72284e079d7b5220bb8fbd747816eebebaca',
+  '45140b3247eb9cc8c5b4f0d7b53091f73292089e6e5a63e2749dd3aca9198eda',
+  '2ce1cb0bf9d2f9e102993fbe215152c3b2dd0cabde1c68e5319b839154dbb7f5',
+  '568d6905a2c88708a4b3025190edcfedb1974a606a13c6e5290fcb2ae63edab5',
+  '0376ab1d54c5f9803ce4b2e201a0ee7eef7b57b636e8a93c9b8d4860c96f5fa7',
+  '0a81ec5a929777f145904af38d5d509f66b5e2c58fcdb531058b0e17f3f0b41b',
+  '70a73f7f376b60074248904534b11482d5bf0e698ecc498df52577ebf2e93b9a',
+  'bd71fdf6da97e4cf62d1647add2581b07d79adf8397eb4ecba9c5e8488821423',
+  '5c58468d55f58e497e743982d2b50010b6d165374acf83a7d4a32db768c4408e',
+  'fcbfe2886206f72b27593c8b070297e12d769ed10ed7930705a8098effc14d17',
+  '8c4edfd04348f322969e7e29a4cd4dca004655061c16e1b076422ef342ad630e',
+  'bfd88fe1101c41ae3e801bf8be56350ee9bad1a6b9bd515edc5c6d5b8711ac44',
+  '513b2cecb810d4cde5dd85391adfc6c2dd60d87bb736d2b521484aa47a0ebef6',
+  '88497f01602f3154246ae28c4d5aef10f1d87ebb76626f4ae0b7f95ba7968799',
+  'bc104f15a48be709dca542a7e1d4b9df6f054527e802eaa92d595444258afe71',
+  '55926084ec963a64b96e2abe01ce0ba86a64fbfebcc7aab5afc155b37fd76066',
+  'c1b48299aba5208fe9630ace55ca68a03eda5a519c8802a0d3a673be8f8e557d',
+  'e17890ee09a3fbf4f48b9c414a17d637b7a50647e9bc752322727fcc1742a911',
+  'c7ba6567de93a798ae1faa791e712d378fae1f93c4397fea441bb7cbe6fd5995',
+  '9a114025197c5bb95d94e63d55cd43790847b646b23cdf11ada4a00eff15fb48',
+  'edf7ebbca27a2a384d387b7d4010c666e2edb4843e4c29b4ae1d5b9332e6b24d',
+  'fd73dad31c644ff1b43bef0ccdda96710b9cd9875eca7e31707af3e96d522bbd',
+  '3e84ba4342908516e77573c0992f0979ca084e4685681ff195ccba8a229b8a76',
+  '978cd966f2faa07ba7aa9500d9c02e9d77f2cdada6ad6ba74af4b91c66593c50',
+  '49e7a442acf0ea6287050054b52564b650e4f49e42e348d6aa38e039e957b1c1',
+  'eec5496b988ce98625b934092eec2908bed0b0f316c2d4730c84eaf1f3d34881',
+  '3cfc3c14d1f684ff17e38c43ca440c00b967ec933e8bfe064ca1d72c90f2adb0',
+  '1c01c6f4dbb2fefc22558b2bca32563f49844acfc32b7be4b0ff599f9e8c7af7',
+  'f09b122c7114f4a09bd4ea4f4a99d558b46e4c25cd81140d29c05613914c3841',
+  'd95fea3ca4eedce74cd76e75fc6d1ff62c441f0fa8bc77f034b19e5db258015d',
+  'f96f23f4c3e79c077a46988d5af5900676a0f039cb645dd17549b216c82440ce',
+  'e23d4a036d7b70e9f595b1422079d2b91edfbb1fb651a0633eaa8a9dc5f80703',
+  '9a6ec012e1a7da9dbe34194d478ad7c0db1822fb071df12981496ed104384113',
+  '59769007f7685d0fcd50872f9f95d5755a5b2b457d81f3692b610a98672f0e1b',
+  'dd6936fe21f8f077c123a1a521c12224f72255b73e03a7260693e8a24b0fa389',
+  'b0bfd52bb0d7d9bd92bf5d4dc13da255c02c542f378365ea893911f55e55f23c',
+  '91e2f5788d5810eba7ba58737de1548a8ecacd014598bc0b143e041b17052552',
+  'f356bea244b7a91eb35d53ca9ad7864ace018e2d35d5f8f96ddf68a6f41aa474',
+  '8a866fd1b276b57e578e921c65828a2bed58e9f2f288054134b7f1f4bfc9cc74',
+  '8fe4fb0af93a4d0d67db0bebb23e37c71bf325dcbcdd240ea04daf58b47e1840',
+  '88ef81de202eb018452e43f864725cea5fbd1fc2d9d205730709c5d8b8690f46',
+  '7d05ebb682339f8c9451ee094eebfefa7953a114edb2f44949452fab7d2fc185',
+  '7e37cb8b4c47090cab36551ba6f45db840680fba166a952db100717f43053fc2',
+  'cb3ccbb76031e5e0138f8dd39a23f9de47ffc35e43c1144cea27d46a5ab1cb5f',
+  '31ad6648f8104138c738f39ea4320133393e3a18cc02296ef97c2ac9ef6731d0',
+  '552f7bdcf1a7af9e6ce672017f4f12abf77240c78e761ac203d1d9d20ac89988',
+  '4b22d5a6aec99f3cdb79aa5ec06838479cd5ecba7164f7f22dc1d65f63d85708',
+  'd6f034bd94aa233f0297eca4245b283973e447aa590f310c77f48fdf83112254',
+  '52f0e1c4e58ec629291b60317f074671b85d7ea80d5b07273463534b32b40234',
+  'e793c9b02fd8aa13e21c31228accb08119643b749c898964b1746d46c3d4cbd2',
+  '4ff460d54b9c86dabfbcfc5712e0400d2bed3fbc4d4fbdaa86e06adcd2a9ad7a',
+  'bec94911c2955676db6c0a550986d76e3ba005667c442c9762b4fbb773de228c',
+  '179fbc148a3dd00fd24ea13458cc43bfa7f59c8182d783a513f6ebec100c8924',
+  '3c4fb0b95ab8b30032f432b86f535fe172c185d0fd39865837cf36187fa6f428',
+  '4d2491414cfe956746ec4cefa6cf6f72e28a1329432f9d8a907ac4cb5dadc15a',
+  '5d56499be4d2e08bcfcad08a3e38723d50503bde706948e42f55603019e528ae',
+  '30d0895a9a448a262091635522d1f52010b5867acae12c78ef958fd4f4389f2f',
+  '43df5774b03e7fef5fe40d931a7bedf1bb2e6b42738c4e6d3841103d3aa7f339',
+  '02ed0eb28c14da45165c566791700d6451d7fb56f0b2ab1d3b8eb070e56edff5',
+  '5cc3d78e4e1d5e45547a04e6873e64f90cf9536d1ccc2ef800f355c4c5fd70fd',
+  '49351b903444c185ccdc5c693d24d8555cb208d6a8141307699f4af063199d78',
+  '8de78655e1be7f7847800b93f694d21d368cc06e033e7fab04bb5eb99da6b700',
+  '2a99f5bc1174b73cbb1d620884e01c34e51ccb3978da125f0e33268883bf4158',
+  '6b9c08e86eb0f767cfad65cd98b62149e5494a67f5845e7bd1ed019f27b86bd6',
+  'd487a56f83b07482e85e963394c1ecc2c9e51d0903ee946b02c301581ed99e16',
+  '8b45da1c06f791eb0cabf26be588f5fb23165c2e614bf885562d0dce50b29b02',
+  'a1339d33281a0b56e557d3d32b1ce7f9367eb094bd5fa72a7e5004c8ded7cafe',
+  'b676f2eddae8775cd36cb0f63cd1d4603961f49e6265ba013a2f0307b6d0b804'
+];
diff --git a/lib/bip70/x509.js b/lib/bip70/x509.js
index 2b7f602b9..ec2731ca8 100644
--- a/lib/bip70/x509.js
+++ b/lib/bip70/x509.js
@@ -12,6 +12,7 @@ var PEM = require('../utils/pem');
 var util = require('../utils/util');
 var crypto = require('../crypto/crypto');
 var pk = require('./pk');
+var certs = require('./certs');
 
 /**
  * @exports bip70/x509
@@ -139,22 +140,11 @@ x509.isTrusted = function isTrusted(cert) {
 x509.setTrust = function setTrust(certs) {
   var i, cert, pem, hash;
 
-  if (!Array.isArray(certs))
-    certs = [certs];
+  assert(Array.isArray(certs), 'Certs must be an array.');
 
   for (i = 0; i < certs.length; i++) {
     cert = certs[i];
 
-    if (isHash(cert)) {
-      if (!Buffer.isBuffer(cert))
-        cert = new Buffer(cert, 'hex');
-
-      hash = cert.toString('hex');
-      x509.trusted[hash] = true;
-
-      continue;
-    }
-
     if (typeof cert === 'string') {
       pem = PEM.decode(cert);
       assert(pem.type === 'certificate', 'Must add certificates to trust.');
@@ -166,7 +156,33 @@ x509.setTrust = function setTrust(certs) {
     cert = x509.parse(cert);
     assert(cert, 'Could not parse certificate.');
 
-    hash = crypto.sha256(cert.raw).toString('hex');
+    hash = crypto.sha256(cert.raw);
+    hash = hash.toString('hex');
+
+    x509.trusted[hash] = true;
+  }
+};
+
+/**
+ * Add root certificate fingerprints to the trusted map.
+ * @param {Hash[]} hashes
+ */
+
+x509.setFingerprints = function setFingerprints(hashes) {
+  var i, hash, hash;
+
+  assert(Array.isArray(hashes), 'Certs must be an array.');
+
+  for (i = 0; i < hashes.length; i++) {
+    hash = hashes[i];
+
+    if (typeof hash === 'string')
+      hash = new Buffer(hash, 'hex');
+
+    assert(Buffer.isBuffer(hash), 'Fingerprint must be a buffer.');
+    assert(hash.length === 32, 'Fingerprint must be a sha256 hash.');
+
+    hash = hash.toString('hex');
     x509.trusted[hash] = true;
   }
 };
@@ -279,13 +295,12 @@ x509.getSigningKey = function getSigningKey(key, chain) {
 
   assert(chain.length !== 0, 'No chain available.');
 
-  cert = x509.parse(chain[0]);
-  assert(cert, 'Could not parse certificate.');
-
   if (typeof key === 'string') {
     key = PEM.decode(key);
+
     if (key.alg === 'ecdsa')
       curve = x509.getCurve(key.params);
+
     key = {
       alg: key.alg,
       data: key.data,
@@ -293,8 +308,12 @@ x509.getSigningKey = function getSigningKey(key, chain) {
       curve: curve
     };
   } else {
+    cert = x509.parse(chain[0]);
+    assert(cert, 'Could not parse certificate.');
+
     pub = x509.getPublicKey(cert);
     assert(pub, 'Certificate uses an unknown algorithm.');
+
     key = {
       alg: pub.alg,
       data: key,
@@ -472,22 +491,8 @@ x509.verifyChain = function verifyChain(certs) {
   return x509.verifyTrust(chain);
 };
 
-/*
- * Helpers
- */
-
-function isHash(data) {
-  if (typeof data === 'string')
-    return util.isHex(data) && data.length === 64;
-
-  if (Buffer.isBuffer(data))
-    return data.length === 32;
-
-  return false;
-}
-
 /*
  * Load trusted certs.
  */
 
-x509.setTrust(require('../../etc/certs.json'));
+x509.setFingerprints(certs);
diff --git a/lib/http/rpc.js b/lib/http/rpc.js
index c04f704ac..ff0cec5c7 100644
--- a/lib/http/rpc.js
+++ b/lib/http/rpc.js
@@ -33,7 +33,7 @@ var Logger = require('../node/logger');
 var IP = require('../utils/ip');
 var encoding = require('../utils/encoding');
 var consensus = require('../protocol/consensus');
-var pkg = require('../../package.json');
+var pkg = require('../pkg');
 
 /**
  * Bitcoin Core RPC
diff --git a/lib/http/server.js b/lib/http/server.js
index 446a14065..e6450f905 100644
--- a/lib/http/server.js
+++ b/lib/http/server.js
@@ -27,7 +27,7 @@ var HD = require('../hd/hd');
 var Script = require('../script/script');
 var crypto = require('../crypto/crypto');
 var Network = require('../protocol/network');
-var pkg = require('../../package.json');
+var pkg = require('../pkg');
 var cob = co.cob;
 var RPC;
 
diff --git a/lib/net/common.js b/lib/net/common.js
index 53b4362bc..4c7764df0 100644
--- a/lib/net/common.js
+++ b/lib/net/common.js
@@ -11,7 +11,7 @@
  * @module net/common
  */
 
-var pkg = require('../../package.json');
+var pkg = require('../pkg');
 
 /**
  * Default protocol version.
diff --git a/scripts/certs.sh b/scripts/certs.sh
index ef685ffb4..4818c8038 100755
--- a/scripts/certs.sh
+++ b/scripts/certs.sh
@@ -45,17 +45,16 @@ gethashes() {
   done
 }
 
-tojson() {
+tojs() {
   local data=$(cat)
   local body=$(echo "$data" | head -n -1)
   local last=$(echo "$data" | tail -n 1)
-  echo '['
+  echo 'module.exports = ['
   echo "$body" | while read line; do
-    echo '  "'"${line}"'",'
+    echo "  '${line}',"
   done
-  echo '  "'"${last}"'"'
-  echo ']'
+  echo "  '${last}'"
+  echo '];'
 }
 
-# getcerts | tojson > "${dir}/../etc/certs.json"
-gethashes | tojson > "${dir}/../etc/certs.json"
+gethashes | tojs > "${dir}/../lib/bip70/certs.js"
diff --git a/test/bip70-test.js b/test/bip70-test.js
index 7388babb9..d3f0752ad 100644
--- a/test/bip70-test.js
+++ b/test/bip70-test.js
@@ -202,7 +202,7 @@ describe('BIP70', function() {
 
     testRequest(request.toRaw());
 
-    x509.setTrust(tests.ca.crt);
+    x509.setTrust([tests.ca.crt]);
     assert(request.verifyChain());
     assert.equal(request.getCA().name, 'JJs CA');
 
diff --git a/test/http-test.js b/test/http-test.js
index 0a4e51039..0710c5a8c 100644
--- a/test/http-test.js
+++ b/test/http-test.js
@@ -10,7 +10,7 @@ var Outpoint = require('../lib/primitives/outpoint');
 var MTX = require('../lib/primitives/mtx');
 var HTTP = require('../lib/http');
 var FullNode = require('../lib/node/fullnode');
-var USER_VERSION = require('../package.json').version;
+var pkg = require('../lib/pkg');
 
 describe('HTTP', function() {
   var node, wallet, addr, hash;
@@ -44,7 +44,7 @@ describe('HTTP', function() {
   it('should get info', co(function* () {
     var info = yield wallet.client.getInfo();
     assert.equal(info.network, node.network.type);
-    assert.equal(info.version, USER_VERSION);
+    assert.equal(info.version, pkg.version);
     assert.equal(info.pool.agent, node.pool.options.agent);
     assert.equal(typeof info.chain, 'object');
     assert.equal(info.chain.height, 0);
diff --git a/test/protocol-test.js b/test/protocol-test.js
index c536213ac..eda9e5530 100644
--- a/test/protocol-test.js
+++ b/test/protocol-test.js
@@ -13,8 +13,8 @@ var packets = require('../lib/net/packets');
 var network = Network.get('main');
 
 describe('Protocol', function() {
-  var version = require('../package.json').version;
-  var agent = '/bcoin:' + version + '/';
+  var pkg = require('../lib/pkg');
+  var agent = '/bcoin:' + pkg.version + '/';
   var parser, framer, v1, v2, hosts;
 
   beforeEach(function() {