diff --git a/assets/styles/components/_icon.scss b/assets/styles/components/_icon.scss
index 0b1fd29..fc81535 100644
--- a/assets/styles/components/_icon.scss
+++ b/assets/styles/components/_icon.scss
@@ -293,10 +293,6 @@
     mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 448 512'%3E%3Cpath d='M297.216 243.2c0 15.616-11.52 28.416-26.112 28.416-14.336 0-26.112-12.8-26.112-28.416s11.52-28.416 26.112-28.416c14.592 0 26.112 12.8 26.112 28.416zm-119.552-28.416c-14.592 0-26.112 12.8-26.112 28.416s11.776 28.416 26.112 28.416c14.592 0 26.112-12.8 26.112-28.416.256-15.616-11.52-28.416-26.112-28.416zM448 52.736V512c-64.494-56.994-43.868-38.128-118.784-107.776l13.568 47.36H52.48C23.552 451.584 0 428.032 0 398.848V52.736C0 23.552 23.552 0 52.48 0h343.04C424.448 0 448 23.552 448 52.736zm-72.96 242.688c0-82.432-36.864-149.248-36.864-149.248-36.864-27.648-71.936-26.88-71.936-26.88l-3.584 4.096c43.52 13.312 63.744 32.512 63.744 32.512-60.811-33.329-132.244-33.335-191.232-7.424-9.472 4.352-15.104 7.424-15.104 7.424s21.248-20.224 67.328-33.536l-2.56-3.072s-35.072-.768-71.936 26.88c0 0-36.864 66.816-36.864 149.248 0 0 21.504 37.12 78.08 38.912 0 0 9.472-11.52 17.152-21.248-32.512-9.728-44.8-30.208-44.8-30.208 3.766 2.636 9.976 6.053 10.496 6.4 43.21 24.198 104.588 32.126 159.744 8.96 8.96-3.328 18.944-8.192 29.44-15.104 0 0-12.8 20.992-46.336 30.464 7.68 9.728 16.896 20.736 16.896 20.736 56.576-1.792 78.336-38.912 78.336-38.912z'%3E%3C/path%3E%3C/svg%3E");
   }
 
-  &-git {
-    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='92pt' height='92pt' viewBox='0 0 92 92'%3E%3Cpath style='stroke:none;fill-rule:nonzero;fill:%6b6b6b;fill-opacity:1' d='M90.156 41.965 50.036 1.848a5.918 5.918 0 0 0-8.372 0l-8.328 8.332 10.566 10.566a7.03 7.03 0 0 1 7.23 1.684 7.034 7.034 0 0 1 1.669 7.277l10.187 10.184a7.028 7.028 0 0 1 7.278 1.672 7.04 7.04 0 0 1 0 9.957 7.05 7.05 0 0 1-9.965 0 7.044 7.044 0 0 1-1.528-7.66l-9.5-9.497V59.36a7.04 7.04 0 0 1 1.86 11.29 7.04 7.04 0 0 1-9.957 0 7.04 7.04 0 0 1 0-9.958 7.06 7.06 0 0 1 2.304-1.539V33.926a7.049 7.049 0 0 1-3.82-9.234L29.242 14.272 1.73 41.777a5.925 5.925 0 0 0 0 8.371L41.852 90.27a5.925 5.925 0 0 0 8.37 0l39.934-39.934a5.925 5.925 0 0 0 0-8.371'/%3E%3C/svg%3E");
-  }
-
   &-discourse {
     mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 448 512'%3E%3Cpath d='M225.9 32C103.3 32 0 130.5 0 252.1 0 256 .1 480 .1 480l225.8-.2c122.7 0 222.1-102.3 222.1-223.9C448 134.3 348.6 32 225.9 32zM224 384c-19.4 0-37.9-4.3-54.4-12.1L88.5 392l22.9-75c-9.8-18.1-15.4-38.9-15.4-61 0-70.7 57.3-128 128-128s128 57.3 128 128-57.3 128-128 128z'%3E%3C/path%3E%3C/svg%3E");
   }
diff --git a/assets/styles/components/_info.scss b/assets/styles/components/_info.scss
index 4169cf0..b7a7fb9 100644
--- a/assets/styles/components/_info.scss
+++ b/assets/styles/components/_info.scss
@@ -1,10 +1,3 @@
-.warning {
-  color: #ff8a00;
-  border-color: #ff8a00;
-  border-width: 2px;
-  font-size: 1.5em;
-}
-
 .info {
   &-name {
     font-size: 0.929rem;
diff --git a/components/DepositModalBox.vue b/components/DepositModalBox.vue
index 1b15fb0..613b6fc 100644
--- a/components/DepositModalBox.vue
+++ b/components/DepositModalBox.vue
@@ -29,8 +29,10 @@
       {{ $t('saveAsFile') }} <span class="has-text-primary">{{ filename }}</span>
     </div>
     <template v-if="!isSetupAccount">
-      <i18n tag="div" path="yourDontHaveAccount" class="notice warning">
-        <template v-slot:account></template>
+      <i18n tag="div" path="yourDontHaveAccount" class="notice">
+        <template v-slot:account>
+          <a @click="_redirectToAccount">{{ $t('account.button') }}</a>
+        </template>
       </i18n>
     </template>
     <b-checkbox v-if="isSetupAccount" v-model="isEncrypted">
diff --git a/components/Footer.vue b/components/Footer.vue
index 6e93820..595c657 100644
--- a/components/Footer.vue
+++ b/components/Footer.vue
@@ -37,15 +37,47 @@
                 <b-button
                   tag="a"
                   type="is-icon"
-                  href="https://development.tornadocash.community/tornadocash/classic-ui"
+                  href="https://forums.tornadocash.community"
                   target="_blank"
                   rel="noopener noreferrer"
-                  icon-right="git"
+                  icon-right="discourse"
                 ></b-button>
                 <b-button
                   tag="a"
                   type="is-icon"
-                  href="https://github.com/tornadocash"
+                  href="https://matrix.tornadocash.community"
+                  target="_blank"
+                  rel="noopener noreferrer"
+                  icon-right="matrix"
+                ></b-button>
+                <b-button
+                  tag="a"
+                  type="is-icon"
+                  href="https://tornado-cash.medium.com"
+                  target="_blank"
+                  rel="noopener noreferrer"
+                  icon-right="medium"
+                ></b-button>
+                <b-button
+                  tag="a"
+                  type="is-icon"
+                  href="https://twitter.com/TornadoCashOrg"
+                  target="_blank"
+                  rel="noopener noreferrer"
+                  icon-right="twitter"
+                ></b-button>
+                <b-button
+                  tag="a"
+                  type="is-icon"
+                  href="https://t.me/TornadoCashOrg"
+                  target="_blank"
+                  rel="noopener noreferrer"
+                  icon-right="telegram"
+                ></b-button>
+                <b-button
+                  tag="a"
+                  type="is-icon"
+                  href="https://development.tornadocash.community"
                   target="_blank"
                   rel="noopener noreferrer"
                   icon-right="github"
diff --git a/components/Loaders/Loader.vue b/components/Loaders/Loader.vue
index 895cc55..f6b661e 100644
--- a/components/Loaders/Loader.vue
+++ b/components/Loaders/Loader.vue
@@ -3,14 +3,15 @@
     <div class="loading-container">
       <div class="loading-tornado" data-test="tornado_loader"></div>
       <div class="loading-message">{{ message }}...</div>
-      <div v-if="progress >= 0" class="loading-message">{{ progress }}%</div>
       <approve-loader v-if="isApprove" />
     </div>
   </b-loading>
 </template>
 <script>
 import { mapState, mapGetters } from 'vuex'
+
 import ApproveLoader from './ApproveLoader'
+
 export default {
   components: {
     ApproveLoader
@@ -18,7 +19,7 @@ export default {
   computed: {
     ...mapGetters('metamask', ['isWalletConnect']),
     ...mapState('metamask', ['providerName']),
-    ...mapState('loading', ['enabled', 'message', 'progress', 'type']),
+    ...mapState('loading', ['enabled', 'message', 'type']),
     isApprove() {
       return this.type === 'approve'
     }
diff --git a/components/Statistics.vue b/components/Statistics.vue
index c12eb3f..15b5165 100644
--- a/components/Statistics.vue
+++ b/components/Statistics.vue
@@ -93,7 +93,9 @@ export default {
     }
   },
   mounted() {
-    this.updateEvents()
+    if (!this.timer) {
+      this.updateEvents()
+    }
   },
   beforeDestroy() {
     clearTimeout(this.timer)
@@ -101,6 +103,10 @@ export default {
   methods: {
     updateEvents() {
       this.$store.dispatch('application/updateSelectEvents')
+
+      this.timer = setTimeout(() => {
+        this.updateEvents()
+      }, 60 * 1000)
     }
   }
 }
diff --git a/components/withdraw/Withdraw.vue b/components/withdraw/Withdraw.vue
index 350022a..286042c 100644
--- a/components/withdraw/Withdraw.vue
+++ b/components/withdraw/Withdraw.vue
@@ -51,7 +51,8 @@
         data-test="enter_note_field"
       ></b-input>
       <div v-if="hasErrorNote" class="help" :class="hasErrorNote.type">
-        <p>{{ hasErrorNote.msg }}</p>
+        <!-- eslint-disable vue/no-v-html -->
+        <p v-html="hasErrorNote.msg"></p>
       </div>
     </div>
     <div v-if="!hasErrorNote && depositTxHash" class="field field-withdraw">
@@ -340,7 +341,6 @@ export default {
             if (currency !== this.nativeCurrency) {
               this.$store.dispatch('application/setDefaultEthToReceive', { currency })
             }
-            this.$store.dispatch('loading/updateProgress', { progress: -1 })
             this.depositsPast = Number(depositsPast) <= 0 ? 0 : depositsPast
             this.depositTxHash = txHash
             this.depositTimestamp = timestamp
diff --git a/constants/variables.js b/constants/variables.js
index d3977bc..35ab9b1 100644
--- a/constants/variables.js
+++ b/constants/variables.js
@@ -60,12 +60,6 @@ export const cachedEventsLength = {
   }
 }
 
-export const httpConfig = {
-  // buffer for tor connections
-  timeout: 30000,
-  keepAlive: true
-}
-
 export const PROVIDERS = {
   walletConnect: {
     name: 'WalletConnect',
diff --git a/langs/en.json b/langs/en.json
index 10d7ed4..a07910e 100644
--- a/langs/en.json
+++ b/langs/en.json
@@ -37,7 +37,7 @@
   "iBackedUpTheNote": "I backed up the note",
   "iEncryptedTheNote": "Create an on-chain backup of this note with your Account {address}",
   "yourNoteWontBeSaved": "Your note won't be saved in your browser. Please make sure it's backed up!",
-  "yourDontHaveAccount": "FAILURE TO BACKUP NOTES WILL RESULT IN LOSS OF FUNDS",
+  "yourDontHaveAccount": "You can also save encrypted notes on-chain by setting up the Note Account. Create one on the {account} page.",
   "sendDeposit": "Send Deposit",
   "clickToCopy": "Click to copy",
   "copied": "Copied!",
diff --git a/langs/ru.json b/langs/ru.json
index 2ff3f9e..46ae366 100644
--- a/langs/ru.json
+++ b/langs/ru.json
@@ -37,7 +37,7 @@
   "iBackedUpTheNote": "Я сделал резервную копию",
   "iEncryptedTheNote": "Создать резервную копию этой Note в блокчейне с помощью Аккаунта {address}",
   "yourNoteWontBeSaved": "Ваша Note не будет сохранена в браузере. Убедитесь, что вы сделали резервную копию!",
-  "yourDontHaveAccount": "НЕВОЗМОЖНОСТЬ СОЗДАТЬ РЕЗЕРВНУЮ ЗАПИСКУ ПРИВЕДЕТ К ПОТЕРЕ СРЕДСТВ",
+  "yourDontHaveAccount": "Вы также можете сохранять зашифрованные Note в блокчейне, создав аккаунт для приватных Note. Создайте его на странице {account}.",
   "sendDeposit": "Отправить депозит",
   "clickToCopy": "Скопировать",
   "copied": "Скопировано!",
diff --git a/langs/zh.json b/langs/zh.json
index 541b472..c13e179 100644
--- a/langs/zh.json
+++ b/langs/zh.json
@@ -37,7 +37,7 @@
   "iBackedUpTheNote": "我已备份了凭证",
   "iEncryptedTheNote": "用您的账户{address}创建此凭证的链上备份",
   "yourNoteWontBeSaved": "你的存款凭证不会被存储在浏览器的缓存中，请确认已作好备份。",
-  "yourDontHaveAccount": "未能备份票据将导致资金损失",
+  "yourDontHaveAccount": "您还可以通过设置凭证账户将加密的凭证保存在链上。 在 {account} 页面上创建。",
   "sendDeposit": "发送存款",
   "clickToCopy": "点击复制",
   "copied": "已复制！",
diff --git a/lib/Permit.js b/lib/Permit.js
index 4859de6..ce5d3b1 100644
--- a/lib/Permit.js
+++ b/lib/Permit.js
@@ -1,6 +1,6 @@
-import { concatSig } from 'eth-sig-util'
+const { EIP712Signer } = require('@ticket721/e712')
 
-const PermitType = [
+const Permit = [
   { name: 'owner', type: 'address' },
   { name: 'spender', type: 'address' },
   { name: 'value', type: 'uint256' },
@@ -8,53 +8,36 @@ const PermitType = [
   { name: 'deadline', type: 'uint256' }
 ]
 
-const EIP712DomainType = [
-  { name: 'name', type: 'string' },
-  { name: 'version', type: 'string' },
-  { name: 'chainId', type: 'uint256' },
-  { name: 'verifyingContract', type: 'address' }
-]
-
-export default class PermitSigner {
+class PermitSigner extends EIP712Signer {
   constructor(_domain, _permitArgs) {
+    super(_domain, ['Permit', Permit])
     this.permitArgs = _permitArgs
-    this.domain = _domain
   }
 
+  // Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)
   setPermitInfo(_permitArgs) {
     this.permitArgs = _permitArgs
   }
 
-  getReqPayload() {
+  getPayload() {
+    return this.generatePayload(this.permitArgs, 'Permit')
+  }
+
+  async getSignature(privateKey) {
+    const payload = this.getPayload()
+    const { hex, v, r, s } = await this.sign(privateKey, payload)
     return {
-      domain: this.domain,
-      primaryType: 'Permit',
-      types: {
-        Permit: PermitType,
-        EIP712Domain: EIP712DomainType
-      },
-      message: this.permitArgs
+      hex,
+      v,
+      r: '0x' + r,
+      s: '0x' + s
     }
   }
 
-  getSignature(response) {
-    response = response.substring(2)
-
-    const r = '0x' + response.substring(0, 64)
-    const s = '0x' + response.substring(64, 128)
-
-    let v = parseInt(response.substring(128, 130), 16)
-
-    // fix ledger sign
-    if (v === 0 || v === 1) {
-      v = v + 27
-    }
-
-    return {
-      hex: concatSig(v, r, s),
-      v,
-      r,
-      s
-    }
+  getSignerAddress(permitArgs, signature) {
+    const originalPayload = this.generatePayload(permitArgs, 'Permit')
+    return this.verify(originalPayload, signature)
   }
 }
+
+module.exports = { PermitSigner }
diff --git a/networkConfig.js b/networkConfig.js
index 31973d8..96601f7 100644
--- a/networkConfig.js
+++ b/networkConfig.js
@@ -278,8 +278,8 @@ export default {
     echoContractAccount: '0xa75BF2815618872f155b7C4B0C81bF990f5245E4',
     rpcUrls: {
       Arbitrum: {
-        name: '1RPC',
-        url: 'https://1rpc.io/arb'
+        name: 'Arbitrum Public RPC',
+        url: 'https://arb1.arbitrum.io/rpc'
       }
     },
     tokens: {
diff --git a/package.json b/package.json
index 5aaf5e6..c132f88 100644
--- a/package.json
+++ b/package.json
@@ -21,8 +21,10 @@
   },
   "dependencies": {
     "@apollo/client": "^3.3.20",
+    "@ensdomains/ensjs": "^2.1.0",
     "@metamask/onboarding": "^1.0.0",
     "@nuxtjs/moment": "^1.6.0",
+    "@ticket721/e712": "^0.4.1",
     "@walletconnect/web3-provider": "1.7.8",
     "ajv": "^6.10.2",
     "arraybuffer-loader": "^1.0.8",
@@ -41,6 +43,7 @@
     "graphql": "^15.5.1",
     "idb": "^6.0.0",
     "jspdf": "^1.5.3",
+    "jszip": "^3.5.0",
     "lodash": "^4.17.21",
     "node-fetch": "^2.6.1",
     "numbro": "^2.3.2",
@@ -80,11 +83,13 @@
     "eslint-plugin-vue": "^6.0.1",
     "esm": "^3.2.25",
     "jest": "^24.9.0",
+    "node-stream-zip": "^1.15.0",
     "nodemon": "^2.0.0",
     "prettier": "^1.19.1",
     "raw-loader": "^3.1.0",
     "sass": "^1.49.9",
     "sass-loader": "^8.0.0",
-    "vue-jest": "^3.0.5"
+    "vue-jest": "^3.0.5",
+    "zip-local": "^0.3.4"
   }
 }
diff --git a/pages/index.vue b/pages/index.vue
index ab8583b..8bd74d7 100644
--- a/pages/index.vue
+++ b/pages/index.vue
@@ -83,6 +83,31 @@
       </i18n>
     </b-notification>
 
+    <b-notification
+      v-if="isEthLink"
+      :active="isActiveNotification.ethLink"
+      class="main-notification"
+      type="is-warning"
+      icon-pack="icon"
+      has-icon
+      :aria-close-label="$t('closeNotification')"
+      @close="disableNotification({ key: 'ethLink' })"
+    >
+      <i18n path="ethLinkBanner.notification">
+        <template v-slot:issue>
+          <a
+            href="https://discuss.ens.domains/t/eth-link-expiry/13899"
+            target="_blank"
+            rel="noopener noreferrer"
+            >{{ $t('ethLinkBanner.issue') }}</a
+          >
+        </template>
+        <template v-slot:alternative>
+          <a href="https://tornado.cash/">{{ $t('ethLinkBanner.alternative') }}</a>
+        </template>
+      </i18n>
+    </b-notification>
+
     <div class="columns">
       <div class="column is-half">
         <b-tabs v-model="activeTab" class="is-tornado" :animated="false" @input="tabChanged">
@@ -115,7 +140,8 @@ export default {
   data() {
     return {
       activeTab: 0,
-      isActive: false
+      isActive: false,
+      isEthLink: window.location.host === 'tornadocash.eth.link'
     }
   },
   computed: {
@@ -158,19 +184,8 @@ export default {
           }
         }
       } else {
-        const userSelection = this.selectedInstance
-        const stateSelection = this.selectedStatistic
-
-        if (
-          !stateSelection ||
-          userSelection.amount !== stateSelection.amount ||
-          userSelection.currency !== stateSelection.currency
-        ) {
-          this.$store.dispatch('application/setAndUpdateStatistic', {
-            currency: userSelection.currency,
-            amount: userSelection.amount
-          })
-        }
+        const { currency, amount } = this.selectedInstance
+        this.$store.dispatch('application/setAndUpdateStatistic', { currency, amount })
       }
     }
   }
diff --git a/plugins/detectIPFS.js b/plugins/detectIPFS.js
index ae1c466..d8a9b0e 100644
--- a/plugins/detectIPFS.js
+++ b/plugins/detectIPFS.js
@@ -3,28 +3,13 @@ export default ({ store, isHMR, app }, inject) => {
   inject('isLoadedFromIPFS', main)
 }
 function main() {
-  const whiteListedDomains = [
-    'tornadocash.3th.li',
-    'tornadocash.3th.ws',
-    'tornadocash.eth.link',
-    'tornadocash.eth.limo',
-    'tornadocashcommunity.3th.li',
-    'tornadocashcommunity.3th.ws',
-    'tornadocashcommunity.eth.link',
-    'tornadocashcommunity.eth.limo'
-  ]
+  const whiteListedDomains = ['localhost:3000', 'tornadocash.eth.link', 'tornadocash.eth.limo']
 
-  const IPFS_GATEWAY_REGEXP = /.ipfs./
-  const IPFS_LOCAL_REGEXP = /.ipfs.localhost:/
-  const IPFS_SOP_GATEWAY_REGEXP = /\/ipfs\//
+  const NETLIFY_REGEXP = /deploy-preview-(\d+)--tornadocash\.netlify\.app/
 
-  if (IPFS_LOCAL_REGEXP.test(window.location.host)) {
+  if (NETLIFY_REGEXP.test(window.location.host)) {
     return false
-  } else if (
-    IPFS_GATEWAY_REGEXP.test(window.location.host) ||
-    IPFS_SOP_GATEWAY_REGEXP.test(window.location.host) ||
-    whiteListedDomains.includes(window.location.host)
-  ) {
+  } else if (!whiteListedDomains.includes(window.location.host)) {
     console.warn('The page has been loaded from ipfs.io. LocalStorage is disabled')
     return true
   }
diff --git a/plugins/idb.js b/plugins/idb.js
index 38e6292..15a857f 100644
--- a/plugins/idb.js
+++ b/plugins/idb.js
@@ -277,7 +277,7 @@ export default async (ctx, inject) => {
           },
           {
             name: `withdrawals_${token}_${amount}`,
-            keyPath: 'blockNumber',
+            keyPath: 'transactionHash',
             indexes: WITHDRAWAL_INDEXES
           },
           {
diff --git a/scripts/helpers/download.js b/scripts/helpers/download.js
index 9639de7..fb05282 100644
--- a/scripts/helpers/download.js
+++ b/scripts/helpers/download.js
@@ -1,14 +1,24 @@
 import fs from 'fs'
-import zlib from 'zlib'
+import Jszip from 'jszip'
 import Web3 from 'web3'
-
 import networkConfig from '../../networkConfig'
 
+const jszip = new Jszip()
+
 export async function download({ name, directory, contentType }) {
-  const path = `${directory}${name}.gz`.toLowerCase()
+  const path = `${directory}${name}.zip`.toLowerCase()
 
   const data = fs.readFileSync(path)
-  const content = zlib.inflateSync(data)
+  const zip = await jszip.loadAsync(data)
+
+  const file = zip.file(
+    path
+      .replace(directory, '')
+      .slice(0, -4)
+      .toLowerCase()
+  )
+
+  const content = await file.async(contentType)
 
   return content
 }
@@ -20,9 +30,14 @@ export async function loadCachedEvents({ name, directory, deployedBlock }) {
     if (module) {
       const events = JSON.parse(module)
 
+      const [lastEvent] = JSON.parse(module).sort(
+        (a, b) => (b.block || b.blockNumber) - (a.block || a.blockNumber)
+      )
+      const lastBlock = lastEvent.block || lastEvent.blockNumber
+
       return {
         events,
-        lastBlock:  events[events.length - 1].blockNumber
+        lastBlock
       }
     }
   } catch (err) {
@@ -53,7 +68,8 @@ export async function getPastEvents({ type, fromBlock, netId, events, contractAt
   const blockDifference = Math.ceil(blockNumberBuffer - fromBlock)
 
   // eth_logs and eth_filter are restricted > 10,000 block queries
-  const blockRange = 10000
+  const blockDenom = blockDifference > 10000 ? 4950 : 20
+  const blockRange = blockDifference / blockDenom
 
   let chunksCount = blockDifference === 0 ? 1 : Math.ceil(blockDifference / blockRange)
   const chunkSize = Math.ceil(blockDifference / chunksCount)
diff --git a/scripts/helpers/save.js b/scripts/helpers/save.js
index 3124a38..db0d63e 100644
--- a/scripts/helpers/save.js
+++ b/scripts/helpers/save.js
@@ -1,23 +1,17 @@
 import fs from 'fs'
-import zlib from 'zlib'
-
-export async function save(filePath) {
-  const directories = filePath.split('/')
-  const fileName = directories[directories.length - 1]
+import zipper from 'zip-local'
 
+export function save(fileName) {
   try {
-    const data = fs.readFileSync(`${filePath}`)
-
-    const payload = await zlib.deflateSync(data, {
-      level: zlib.constants.Z_BEST_COMPRESSION,
-      strategy: zlib.constants.Z_FILTERED
-    })
-
-    fs.writeFileSync(`${filePath}.gz`, payload)
+    zipper.sync
+      .zip(`${fileName}`)
+      .compress()
+      .save(`${fileName}.zip`)
 
+    fs.unlinkSync(fileName)
     return true
   } catch (err) {
-    console.log('on save error', filePath, err.message)
+    console.log('on save error', fileName, err.message)
     return false
   }
 }
diff --git a/scripts/updateEvents.js b/scripts/updateEvents.js
index 13cb3be..211b0d9 100644
--- a/scripts/updateEvents.js
+++ b/scripts/updateEvents.js
@@ -9,7 +9,7 @@ import { loadCachedEvents, getPastEvents } from './helpers'
 
 const EVENTS_PATH = './static/events/'
 const EVENTS = ['Deposit', 'Withdrawal']
-const enabledChains = ['1', '56', '100', '137' ]
+const enabledChains = ['1', '56', '5', '100', '137' ]
 
 async function main(type, netId) {
   const { tokens, nativeCurrency, deployedBlock } = networkConfig[`netId${netId}`]
@@ -64,7 +64,7 @@ async function main(type, netId) {
     let freshEvents = cachedEvents.events.concat(events)
 
     if (type === 'Withdrawal') {
-      freshEvents = uniqBy(freshEvents, 'nullifierHash').sort((a, b) => a.blockNumber - b.blockNumber)
+      freshEvents = uniqBy(freshEvents, 'nullifierHash').sort((a, b) => b.blockNumber - a.blockNumber)
     } else {
       freshEvents = freshEvents.filter((e, index) => Number(e.leafIndex) === index)
     }
diff --git a/scripts/updateTree.js b/scripts/updateTree.js
index 1100422..c61bcc2 100644
--- a/scripts/updateTree.js
+++ b/scripts/updateTree.js
@@ -45,7 +45,7 @@ function createTreeZip(netId) {
 
         treesFolder.forEach((fileName) => {
           fileName = `${TREES_PATH}${fileName}`
-          const isInstanceFile = !fileName.includes('.gz') && fileName.includes(baseFilename)
+          const isInstanceFile = !fileName.includes('.zip') && fileName.includes(baseFilename)
 
           if (isInstanceFile) {
             save(fileName)
diff --git a/services/events.js b/services/events.js
index 7d951f2..7ee1495 100644
--- a/services/events.js
+++ b/services/events.js
@@ -4,24 +4,17 @@ import graph from '@/services/graph'
 import { download } from '@/store/snark'
 import networkConfig from '@/networkConfig'
 import InstanceABI from '@/abis/Instance.abi.json'
-import { CONTRACT_INSTANCES, eventsType, httpConfig } from '@/constants'
-import { sleep, flattenNArray, formatEvents, capitalizeFirstLetter } from '@/utils'
+import { CONTRACT_INSTANCES, eventsType } from '@/constants'
+import { sleep, formatEvents, capitalizeFirstLetter } from '@/utils'
 
 const supportedCaches = ['1', '56', '100', '137']
 
-let store
-if (process.browser) {
-  window.onNuxtReady(({ $store }) => {
-    store = $store
-  })
-}
-
 class EventService {
   constructor({ netId, amount, currency, factoryMethods }) {
     this.idb = window.$nuxt.$indexedDB(netId)
 
     const { nativeCurrency } = networkConfig[`netId${netId}`]
-    const hasCache = supportedCaches.includes(netId.toString())
+    const hasCache = supportedCaches.indexOf(Number(this.netId)) !== 0
 
     this.netId = netId
     this.amount = amount
@@ -38,32 +31,20 @@ class EventService {
     return `${type}s_${this.currency}_${this.amount}`
   }
 
-  updateEventProgress(percentage, type) {
-    if (store) {
-      store.dispatch('loading/updateProgress', {
-        message: `Fetching past ${type} events`,
-        progress: Math.ceil(percentage * 100)
-      })
-    }
-  }
-
   async getEvents(type) {
     let cachedEvents = await this.getEventsFromDB(type)
 
     if (!cachedEvents && this.hasCache) {
       cachedEvents = await this.getEventsFromCache(type)
     }
-
     return cachedEvents
   }
-
   async updateEvents(type, cachedEvents) {
     const { deployedBlock } = networkConfig[`netId${this.netId}`]
 
     const savedEvents = cachedEvents || (await this.getEvents(type))
 
     let fromBlock = deployedBlock
-
     if (savedEvents) {
       fromBlock = savedEvents.lastBlock + 1
     }
@@ -133,7 +114,7 @@ class EventService {
 
       const module = await download({
         contentType: 'string',
-        name: `events/${instanceName}.json.gz`
+        name: `events/${instanceName}.json.zip`
       })
 
       if (module) {
@@ -157,15 +138,22 @@ class EventService {
   async getEventsFromDB(type) {
     try {
       const instanceName = this.getInstanceName(type)
+
       const savedEvents = await this.idb.getAll({ storeName: instanceName })
 
       if (!savedEvents || !savedEvents.length) {
         return undefined
       }
 
+      const event = await this.idb.getFromIndex({
+        storeName: 'lastEvents',
+        indexName: 'name',
+        key: instanceName
+      })
+
       return {
         events: savedEvents,
-        lastBlock: savedEvents[savedEvents.length - 1].blockNumber
+        lastBlock: event.blockNumber
       }
     } catch (err) {
       return undefined
@@ -247,22 +235,7 @@ class EventService {
     }
   }
 
-  getPastEvents({ fromBlock, toBlock, type }) {
-    return new Promise((resolve, reject) => {
-      const repsonse = this.contract.getPastEvents(capitalizeFirstLetter(type), {
-        fromBlock,
-        toBlock
-      })
-
-      if (repsonse) {
-        resolve(repsonse)
-      } else {
-        reject(new Error())
-      }
-    })
-  }
-
-  async getEventsPartFromRpc({ fromBlock, toBlock, type }, shouldRetry = false, i = 0) {
+  async getEventsPartFromRpc({ fromBlock, toBlock, type }) {
     try {
       const { currentBlockNumber } = await this.getBlocksDiff({ fromBlock })
 
@@ -273,27 +246,10 @@ class EventService {
         }
       }
 
-      let events = []
-
-      try {
-        events = await this.getPastEvents({ fromBlock, toBlock, type })
-      } catch (e) {
-        if (shouldRetry) {
-          i = i + 1
-          // maximum 10 second buffer for rate-limiting
-          await sleep(2000 * i)
-
-          events = await this.getEventsPartFromRpc(
-            {
-              fromBlock,
-              toBlock,
-              type
-            },
-            i !== 5,
-            i
-          )
-        }
-      }
+      const events = await this.contract.getPastEvents(capitalizeFirstLetter(type), {
+        fromBlock,
+        toBlock
+      })
 
       if (!events?.length) {
         return {
@@ -310,60 +266,41 @@ class EventService {
     }
   }
 
-  createBatchRequest({ batchIndex, batchSize, batchBlocks, blockDenom, type }) {
-    return new Array(batchSize).fill('').map(
-      (_, i) =>
-        new Promise(async (resolve) => {
-          const toBlock = batchBlocks[batchIndex * batchSize + i]
-          const fromBlock = toBlock - blockDenom
-
-          const batchEvents = await this.getEventsPartFromRpc(
-            {
-              fromBlock,
-              toBlock,
-              type
-            },
-            true
-          )
-
-          resolve(batchEvents.events)
-        })
-    )
-  }
-
   async getBatchEventsFromRpc({ fromBlock, type }) {
     try {
-      const batchSize = 10
-      const blockRange = 10000
+      const blockRange = 4950
       const { blockDifference, currentBlockNumber } = await this.getBlocksDiff({ fromBlock })
 
-      const batchDigest = blockDifference === 0 ? 1 : Math.ceil(blockDifference / blockRange)
-      const blockDenom = Math.ceil(blockDifference / batchDigest)
-      const batchCount = Math.ceil(batchDigest / batchSize)
-
-      const blocks = new Array(batchCount * batchSize).fill('')
-      const batchBlocks = blocks.map((_, i) => (i + 1) * blockDenom + fromBlock)
+      let numberParts = blockDifference === 0 ? 1 : Math.ceil(blockDifference / blockRange)
+      const part = Math.ceil(blockDifference / numberParts)
 
       let events = []
+      let toBlock = fromBlock + part
 
       if (fromBlock < currentBlockNumber) {
-        this.updateEventProgress(0, type)
-
-        for (let batchIndex = 0; batchIndex < batchCount; batchIndex++) {
-          const batch = await Promise.all(
-            this.createBatchRequest({ batchIndex, batchBlocks, blockDenom, batchSize, type })
-          )
-
-          this.updateEventProgress(batchIndex / batchCount, type)
-          events = events.concat(batch)
-          await sleep(200)
+        if (toBlock >= currentBlockNumber) {
+          toBlock = 'latest'
+          numberParts = 1
         }
 
-        events = flattenNArray(events)
-
-        return {
-          lastBlock: events[events.length - 1].blockNumber,
-          events
+        for (let i = 0; i < numberParts; i++) {
+          try {
+            await sleep(200)
+            const partOfEvents = await this.getEventsPartFromRpc({ fromBlock, toBlock, type })
+            if (partOfEvents) {
+              events = events.concat(partOfEvents.events)
+            }
+            fromBlock = toBlock
+            toBlock += part
+          } catch {
+            numberParts = numberParts + 1
+          }
+        }
+        if (events.length) {
+          return {
+            events,
+            lastBlock: toBlock === 'latest' ? currentBlockNumber : toBlock
+          }
         }
       }
       return undefined
@@ -374,19 +311,15 @@ class EventService {
 
   async getEventsFromRpc({ fromBlock, type }) {
     try {
-      const { blockDifference } = await this.getBlocksDiff({ fromBlock })
-      const blockRange = 10000
-
       let events
 
-      if (blockDifference < blockRange) {
+      if (Number(this.netId) === 1) {
         const rpcEvents = await this.getEventsPartFromRpc({ fromBlock, toBlock: 'latest', type })
         events = rpcEvents?.events || []
       } else {
         const rpcEvents = await this.getBatchEventsFromRpc({ fromBlock, type })
         events = rpcEvents?.events || []
       }
-
       return events
     } catch (err) {
       return []
@@ -399,7 +332,6 @@ class EventService {
       const rpcEvents = await this.getEventsFromRpc({ fromBlock, type })
 
       const allEvents = [].concat(rpcEvents || [])
-
       if (allEvents.length) {
         return {
           events: allEvents,
@@ -442,9 +374,7 @@ class EventsFactory {
   instances = new Map()
 
   constructor(rpcUrl) {
-    const httpProvider = new Web3.providers.HttpProvider(rpcUrl, httpConfig)
-
-    this.provider = new Web3(httpProvider).eth
+    this.provider = new Web3(rpcUrl).eth
   }
 
   getBlockNumber = () => {
diff --git a/services/graph.js b/services/graph.js
index 5366358..fb306df 100644
--- a/services/graph.js
+++ b/services/graph.js
@@ -39,7 +39,6 @@ const defaultOptions = {
 
 const client = new ApolloClient({
   uri: link,
-  credentials: 'omit',
   cache: new InMemoryCache(),
   defaultOptions
 })
@@ -47,7 +46,6 @@ const client = new ApolloClient({
 const registryClient = new ApolloClient({
   uri: 'https://api.thegraph.com/subgraphs/name/tornadocash/tornado-relayer-registry',
   cache: new InMemoryCache(),
-  credentials: 'omit',
   defaultOptions
 })
 
diff --git a/services/merkleTree.js b/services/merkleTree.js
index dfe33dc..46fad51 100644
--- a/services/merkleTree.js
+++ b/services/merkleTree.js
@@ -5,8 +5,6 @@ import { download } from '@/store/snark'
 import networkConfig from '@/networkConfig'
 import { mimc, bloomService } from '@/services'
 
-const supportedCaches = ['1', '56', '100', '137']
-
 class MerkleTreeService {
   constructor({ netId, amount, currency, commitment, instanceName }) {
     this.netId = netId
@@ -22,12 +20,12 @@ class MerkleTreeService {
       commitment,
       instanceName,
       fileFolder: 'trees',
-      fileName: `deposits_${currency}_${amount}_bloom.json.gz`
+      fileName: `deposits_${currency}_${amount}_bloom.json.zip`
     })
   }
 
   getFileName(partNumber = trees.PARTS_COUNT) {
-    return `trees/deposits_${this.currency}_${this.amount}_slice${partNumber}.json.gz`
+    return `trees/deposits_${this.currency}_${this.amount}_slice${partNumber}.json.zip`
   }
 
   createTree({ events }) {
@@ -155,7 +153,8 @@ class MerkleTreeService {
   }
 
   async getTree() {
-    const hasCache = supportedCaches.includes(this.netId.toString())
+    const { nativeCurrency } = networkConfig[`netId${this.netId}`]
+    const hasCache = nativeCurrency === this.currency && Number(this.netId) === 1
 
     let cachedTree = await this.getTreeFromDB()
 
diff --git a/services/registry/index.js b/services/registry/index.js
index c20a744..cacaba4 100644
--- a/services/registry/index.js
+++ b/services/registry/index.js
@@ -1,11 +1,10 @@
-import Web3 from 'web3'
 import namehash from 'eth-ens-namehash'
 import { BigNumber as BN } from 'bignumber.js'
-import { toChecksumAddress, isAddress } from 'web3-utils'
+import { toChecksumAddress } from 'web3-utils'
 
+import { graph } from '@/services'
 import networkConfig from '@/networkConfig'
 import { REGISTRY_DEPLOYED_BLOCK } from '@/constants'
-import { sleep, flattenNArray } from '@/utils'
 
 import AggregatorABI from '@/abis/Aggregator.abi.json'
 import RelayerRegistryABI from '@/abis/RelayerRegistry.abi.json'
@@ -25,59 +24,28 @@ class RelayerRegister {
     this.relayerRegistry = new this.provider.Contract(RelayerRegistryABI, registryContract)
   }
 
-  fetchEvents = ({ fromBlock, toBlock }, shouldRetry = false) => {
-    return new Promise((resolve, reject) => {
-      if (fromBlock <= toBlock) {
-        try {
-          const registeredEventsPart = this.relayerRegistry.getPastEvents('RelayerRegistered', {
-            fromBlock,
-            toBlock
-          })
-
-          resolve(registeredEventsPart)
-        } catch (error) {
-          if (shouldRetry) {
-            sleep(1000)
-
-            const events = this.fetchEvents({ fromBlock, toBlock })
-
-            resolve(events)
-          } else {
-            reject(new Error(error))
-          }
-        }
-      } else {
-        resolve([])
-      }
-    })
-  }
-
-  batchFetchEvents = async ({ fromBlock, toBlock }) => {
-    const blockRange = 10000
-    const blockDifference = toBlock - fromBlock
-    const chunkCount = Math.ceil(blockDifference / blockRange)
-    const blockDenom = Math.ceil(blockDifference / chunkCount)
-
-    const promises = new Array(chunkCount).fill('').map(
-      (_, i) =>
-        new Promise((resolve) => {
-          sleep(300)
-
-          const batch = this.fetchEvents(
-            {
-              fromBlock: i * blockDenom + fromBlock,
-              toBlock: (i + 1) * blockDenom + fromBlock
-            },
-            true
-          )
-          resolve(batch)
+  fetchEvents = async (fromBlock, toBlock) => {
+    if (fromBlock <= toBlock) {
+      try {
+        const registeredEventsPart = await this.relayerRegistry.getPastEvents('RelayerRegistered', {
+          fromBlock,
+          toBlock
         })
-    )
 
-    const batchEvents = flattenNArray(await Promise.all(promises))
-    const events = batchEvents.map((e) => ({ ...e.returnValues }))
+        return registeredEventsPart
+      } catch (error) {
+        const midBlock = (fromBlock + toBlock) >> 1
 
-    return events
+        if (midBlock - fromBlock < 2) {
+          throw new Error(`error fetching events: ${error.message}`)
+        }
+
+        const arr1 = await this.fetchEvents(fromBlock, midBlock)
+        const arr2 = await this.fetchEvents(midBlock + 1, toBlock)
+        return [...arr1, ...arr2]
+      }
+    }
+    return []
   }
 
   saveEvents = async ({ events, lastSyncBlock, storeName }) => {
@@ -128,69 +96,51 @@ class RelayerRegister {
     }
   }
 
-  getENSAddress = async (ensName) => {
-    const { url } = Object.values(networkConfig.netId1.rpcUrls)[0]
-    const provider = new Web3(url)
-
-    const ensAddress = await provider.eth.ens.getAddress(ensName)
-
-    return ensAddress
-  }
-
   fetchRelayers = async () => {
-    const blockRange = 10000
     // eslint-disable-next-line prefer-const
-    let { blockTo, cachedEvents } = await this.getCachedData()
+    let { blockFrom, blockTo, cachedEvents } = await this.getCachedData()
     let allRelayers = cachedEvents
 
-    const currentBlockNumber = await this.provider.getBlockNumber()
-    const fromBlock = cachedEvents.length === 0 ? REGISTRY_DEPLOYED_BLOCK[1] : blockTo
-    const blockDifference = currentBlockNumber - fromBlock
+    if (blockFrom !== blockTo) {
+      const registeredRelayersEvents = await graph.getAllRegisters(blockFrom)
 
-    try {
-      let toBlock
-      let registerRelayerEvents
-      let lastSyncBlock = blockTo
-
-      if (cachedEvents.length > 0 || blockDifference === 0) {
-        return cachedEvents
-      } else if (blockDifference >= blockRange) {
-        toBlock = currentBlockNumber
-        registerRelayerEvents = await this.batchFetchEvents({ fromBlock, toBlock })
-        lastSyncBlock = toBlock
-      } else {
-        toBlock = fromBlock + blockRange
-        registerRelayerEvents = await this.fetchEvents({ fromBlock, toBlock }, true)
-        lastSyncBlock = toBlock
+      let relayers = {
+        lastSyncBlock: registeredRelayersEvents.lastSyncBlock,
+        events: registeredRelayersEvents.events.map((el) => ({
+          ensName: el.ensName,
+          relayerAddress: toChecksumAddress(el.address)
+        }))
       }
 
-      const relayerEvents = cachedEvents.concat(registerRelayerEvents || [])
-      const events = []
+      const isGraphLate = relayers.lastSyncBlock && blockTo > Number(relayers.lastSyncBlock)
 
-      for (let x = 0; x < relayerEvents.length; x++) {
-        const { ensName, relayerAddress } = relayerEvents[x]
-        let ensAddress
-        if (!isAddress(relayerAddress)) {
-          ensAddress = await this.getENSAddress(ensName)
-          ensAddress = toChecksumAddress(ensAddress)
-        } else {
-          ensAddress = relayerAddress
+      if (isGraphLate) {
+        blockFrom = relayers.lastSyncBlock
+      }
+
+      if (!relayers.events.length || isGraphLate) {
+        const multicallEvents = await this.fetchEvents(blockFrom, blockTo)
+        const eventsRelayers = multicallEvents.map(({ returnValues }) => ({
+          ensName: returnValues.ensName,
+          relayerAddress: returnValues.relayerAddress
+        }))
+
+        relayers = {
+          lastSyncBlock: blockTo,
+          events: relayers.events.concat(eventsRelayers)
         }
-
-        events.push({ ensName, relayerAddress: ensAddress })
       }
 
-      await this.saveEvents({ storeName: 'register_events', lastSyncBlock, events })
-
-      allRelayers = allRelayers.concat(events)
-    } catch (err) {
-      console.log(err)
+      await this.saveEvents({ storeName: 'register_events', ...relayers })
+      allRelayers = allRelayers.concat(relayers.events)
     }
+
     return allRelayers
   }
 
   filterRelayer = (acc, curr, ensSubdomainKey, relayer) => {
     const subdomainIndex = subdomains.indexOf(ensSubdomainKey)
+
     const mainnetSubdomain = curr.records[0]
     const hostname = curr.records[subdomainIndex]
     const isHostWithProtocol = hostname.includes('http')
@@ -241,6 +191,7 @@ class RelayerRegister {
 
   getRelayers = async (ensSubdomainKey) => {
     const relayers = await this.fetchRelayers()
+
     const validRelayers = await this.getValidRelayers(relayers, ensSubdomainKey)
 
     return validRelayers
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diff --git a/static/trees/deposits_matic_100_slice4.json.gz b/static/trees/deposits_matic_100_slice4.json.gz
deleted file mode 100644
index d8f99ed..0000000
Binary files a/static/trees/deposits_matic_100_slice4.json.gz and /dev/null differ
diff --git a/static/trees/deposits_matic_100_slice4.json.zip b/static/trees/deposits_matic_100_slice4.json.zip
new file mode 100644
index 0000000..d9df978
Binary files /dev/null and b/static/trees/deposits_matic_100_slice4.json.zip differ
diff --git a/static/trees/deposits_xdai_100000_bloom.json.gz b/static/trees/deposits_xdai_100000_bloom.json.gz
deleted file mode 100644
index 9e99815..0000000
--- a/static/trees/deposits_xdai_100000_bloom.json.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-x��M
-�0�ѽ|�;xI�y��R�mٻ�8q�5Ļ�.E�}���Ń�ض��c����ă�)
-Qq��8�g�C\q�ĥ���%p�9�`�
\ No newline at end of file
diff --git a/static/trees/deposits_xdai_100000_bloom.json.zip b/static/trees/deposits_xdai_100000_bloom.json.zip
new file mode 100644
index 0000000..af26423
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diff --git a/static/trees/deposits_xdai_100000_slice1.json.gz b/static/trees/deposits_xdai_100000_slice1.json.gz
deleted file mode 100644
index 09ddd21..0000000
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index 0000000..1326d8d
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diff --git a/static/trees/deposits_xdai_100000_slice2.json.gz b/static/trees/deposits_xdai_100000_slice2.json.gz
deleted file mode 100644
index 32b5187..0000000
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deleted file mode 100644
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diff --git a/static/trees/deposits_xdai_100_slice3.json.zip b/static/trees/deposits_xdai_100_slice3.json.zip
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index 0000000..a167599
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diff --git a/static/trees/deposits_xdai_100_slice4.json.gz b/static/trees/deposits_xdai_100_slice4.json.gz
deleted file mode 100644
index e1be01c..0000000
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diff --git a/static/trees/deposits_xdai_100_slice4.json.zip b/static/trees/deposits_xdai_100_slice4.json.zip
new file mode 100644
index 0000000..34a5b1e
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diff --git a/store/application.js b/store/application.js
index 1c9f4f3..7415345 100644
--- a/store/application.js
+++ b/store/application.js
@@ -3,7 +3,7 @@
 import Web3 from 'web3'
 
 import networkConfig from '@/networkConfig'
-import { cachedEventsLength, eventsType, httpConfig } from '@/constants'
+import { cachedEventsLength, eventsType } from '@/constants'
 
 import MulticallABI from '@/abis/Multicall.json'
 import InstanceABI from '@/abis/Instance.abi.json'
@@ -117,8 +117,7 @@ const getters = {
     const config = networkConfig[`netId${netId}`]
     const { url } = rootState.settings[`netId${netId}`].rpc
     const address = config.tokens[currency].instanceAddress[amount]
-    const httpProvider = new Web3.providers.HttpProvider(url, httpConfig)
-    const web3 = new Web3(httpProvider)
+    const web3 = new Web3(url)
     return new web3.eth.Contract(InstanceABI, address)
   },
   multicallContract: (state, getters, rootState) => ({ netId }) => {
@@ -259,7 +258,6 @@ const getters = {
 const actions = {
   setAndUpdateStatistic({ dispatch, commit }, { currency, amount }) {
     commit('SET_SELECTED_STATISTIC', { currency, amount })
-
     dispatch('updateSelectEvents')
   },
   async updateSelectEvents({ dispatch, commit, state, rootGetters, getters }) {
@@ -267,14 +265,15 @@ const actions = {
     const { currency, amount } = state.selectedStatistic
 
     const eventService = getters.eventsInterface.getService({ netId, amount, currency })
+
     const graphEvents = await eventService.getEventsFromGraph({ methodName: 'getStatistic' })
 
     let statistic = graphEvents?.events
 
-    const latestDeposits = []
-
     if (!statistic || !statistic.length) {
-      statistic = []
+      const fresh = await eventService.getStatisticsRpc({ eventsCount: 10 })
+
+      statistic = fresh || []
     }
 
     const { nextDepositIndex, anonymitySet } = await dispatch('getLastDepositIndex', {
@@ -285,6 +284,8 @@ const actions = {
 
     statistic = statistic.sort((a, b) => a.leafIndex - b.leafIndex)
 
+    const latestDeposits = []
+
     for (const event of statistic.slice(-10)) {
       latestDeposits.unshift({
         index: event.leafIndex,
@@ -357,7 +358,7 @@ const actions = {
     try {
       const module = await download({
         contentType: 'string',
-        name: `events/encrypted_notes_${netId}.json.gz`
+        name: `events/encrypted_notes_${netId}.json.zip`
       })
 
       if (module) {
diff --git a/store/gasPrices.js b/store/gasPrices.js
index 8145814..49a5ba3 100644
--- a/store/gasPrices.js
+++ b/store/gasPrices.js
@@ -32,7 +32,6 @@ export const getters = {
     const address = config.ovmGasPriceOracleContract
     if (address) {
       const web3 = new Web3(url)
-
       return new web3.eth.Contract(OvmGasPriceOracleABI, address)
     }
 
diff --git a/store/governance/gov.js b/store/governance/gov.js
index 933d6df..5e7f69d 100644
--- a/store/governance/gov.js
+++ b/store/governance/gov.js
@@ -10,8 +10,6 @@ import networkConfig from '@/networkConfig'
 import GovernanceABI from '@/abis/Governance.abi.json'
 import AggregatorABI from '@/abis/Aggregator.abi.json'
 
-import { httpConfig } from '@/constants'
-
 const { numberToHex, toWei, fromWei, toBN, hexToNumber, hexToNumberString } = require('web3-utils')
 
 const state = () => {
@@ -49,9 +47,7 @@ const getters = {
   },
   getWeb3: (state, getters, rootState) => ({ netId }) => {
     const { url } = rootState.settings[`netId${netId}`].rpc
-    const httpProvider = new Web3.providers.HttpProvider(url, httpConfig)
-
-    return new Web3(httpProvider)
+    return new Web3(url)
   },
   govContract: (state, getters, rootState) => ({ netId }) => {
     const config = getters.getConfig({ netId })
diff --git a/store/loading.js b/store/loading.js
index f087ed8..00d54bf 100644
--- a/store/loading.js
+++ b/store/loading.js
@@ -1,7 +1,6 @@
 export const state = () => {
   return {
     message: '',
-    progress: -1,
     enabled: false,
     type: null
   }
@@ -10,16 +9,14 @@ export const state = () => {
 export const getters = {}
 
 export const mutations = {
-  ENABLE(state, { message, progress, type }) {
+  ENABLE(state, { message, type }) {
     state.message = message
     state.enabled = true
-    state.progress = progress
     state.type = type
   },
   DISABLE(state) {
     state.message = ''
     state.enabled = false
-    state.progress = -1
     state.type = null
   }
 }
@@ -31,9 +28,6 @@ export const actions = {
   changeText({ commit }, { message, type }) {
     commit('ENABLE', { message, type })
   },
-  updateProgress({ commit }, { message, progress }) {
-    commit('ENABLE', { message, progress })
-  },
   disable({ commit }) {
     commit('DISABLE')
   },
diff --git a/store/relayer.js b/store/relayer.js
index dfaaa52..0b7c725 100644
--- a/store/relayer.js
+++ b/store/relayer.js
@@ -3,7 +3,6 @@ import Web3 from 'web3'
 import BN from 'bignumber.js'
 import namehash from 'eth-ens-namehash'
 
-import { httpConfig } from '@/constants'
 import { schema, relayerRegisterService } from '@/services'
 import { createChainIdState, parseNote, parseSemanticVersion } from '@/utils'
 
@@ -86,9 +85,8 @@ export const state = () => {
 export const getters = {
   ethProvider: (state, getters, rootState) => {
     const { url } = rootState.settings.netId1.rpc
-    const httpProvider = new Web3.providers.HttpProvider(url, httpConfig)
 
-    return new Web3(httpProvider)
+    return new Web3(url)
   },
   jobs: (state, getters, rootState, rootGetters) => (type) => {
     const netId = rootGetters['metamask/netId']
@@ -206,13 +204,7 @@ export const actions = {
       }
 
       const url = `${window.location.protocol}//${hostname}`
-      const reqConfig = {
-        headers: {
-          'Content-Type': 'application/json, application/x-www-form-urlencoded'
-        },
-        timeout: 10000
-      }
-      const response = await axios.get(`${url}status`, reqConfig).catch(() => {
+      const response = await axios.get(`${url}status`, { timeout: 5000 }).catch(() => {
         throw new Error(this.app.i18n.t('canNotFetchStatusFromTheRelayer'))
       })
 
@@ -330,18 +322,8 @@ export const actions = {
       })
     } catch {
       console.error('Method pickRandomRelayer has not picked relayer')
-      dispatch(
-        'notice/addNotice',
-        {
-          notice: {
-            untranslatedTitle: 'Failed to fetch relayers',
-            type: 'warning'
-          },
-          interval: 1500
-        },
-        { root: true }
-      )
     }
+
     commit('SET_IS_LOADING_RELAYERS', false)
   },
   async getKnownRelayerData({ rootGetters, getters }, { relayerAddress, name }) {
diff --git a/store/snark.js b/store/snark.js
index 516ab1f..3aec732 100644
--- a/store/snark.js
+++ b/store/snark.js
@@ -1,7 +1,8 @@
 /* eslint-disable no-console */
-import zlib from 'zlib'
-import axios from 'axios'
 import Web3 from 'web3'
+import Jszip from 'jszip'
+import axios from 'axios'
+import ENS, { getEnsAddress } from '@ensdomains/ensjs'
 
 import { detectMob } from '@/utils'
 import networkConfig from '@/networkConfig'
@@ -9,6 +10,7 @@ import networkConfig from '@/networkConfig'
 const { APP_ENS_NAME } = process.env
 
 const groth16 = require('websnark/src/groth16')
+const jszip = new Jszip()
 
 function buildGroth16() {
   const isMobile = detectMob()
@@ -17,32 +19,31 @@ function buildGroth16() {
 }
 
 function getEns() {
-  const { url } = Object.values(networkConfig.netId1.rpcUrls)[0]
-  const provider = new Web3(url)
-
-  return provider.eth.ens
+  const provider = new Web3.providers.HttpProvider(networkConfig.netId1.rpcUrls.Infura.url)
+  return new ENS({ provider, ensAddress: getEnsAddress('1') })
 }
 
 async function getTornadoKeys(getProgress) {
   try {
     const keys = await Promise.all([
-      download({ name: 'tornado.json.gz', contentType: 'string' }),
-      download({ name: 'tornadoProvingKey.bin.gz', contentType: 'arraybuffer', getProgress })
+      download({ name: 'tornado.json.zip', contentType: 'string' }),
+      download({ name: 'tornadoProvingKey.bin.zip', contentType: 'arraybuffer', getProgress })
     ])
-
-    return { circuit: JSON.parse(keys[0]), provingKey: keys[1].buffer }
+    return { circuit: JSON.parse(keys[0]), provingKey: keys[1] }
   } catch (err) {
-    console.log('ERR', err)
     throw err
   }
 }
 
 async function getIPFSIdFromENS(ensName) {
   try {
-    const ensInterface = getEns()
-    const { decoded } = await ensInterface.getContenthash(ensName)
+    const ens = getEns()
 
-    return decoded
+    const ensInterface = await ens.name(ensName)
+    const { value } = await ensInterface.getContent(ensName)
+
+    const [, id] = value.split('://')
+    return id
   } catch (err) {
     throw new Error(err)
   }
@@ -97,8 +98,11 @@ async function download({ name, contentType, getProgress, eventName = 'events' }
     // eslint-disable-next-line no-undef
     const prefix = __webpack_public_path__.slice(0, -7)
     const response = await fetchFile({ getProgress, url: prefix, name })
-    const buffer = Buffer.from(await response.data.arrayBuffer())
-    const content = zlib.inflateSync(buffer)
+
+    const zip = await jszip.loadAsync(response.data)
+    const file = zip.file(name.replace(`${eventName}/`, '').slice(0, -4))
+
+    const content = await file.async(contentType)
 
     return content
   } catch (err) {
diff --git a/store/torn.js b/store/torn.js
index 7f6b020..c6dbee4 100644
--- a/store/torn.js
+++ b/store/torn.js
@@ -2,11 +2,11 @@
 import Web3 from 'web3'
 import { toBN } from 'web3-utils'
 import tornABI from '../abis/ERC20.abi.json'
-import PermitSigner from '../lib/Permit'
 
 import { isWalletRejection } from '@/utils'
 
 const { toWei, toHex, numberToHex } = require('web3-utils')
+const { PermitSigner } = require('../lib/Permit')
 
 const state = () => {
   return {
@@ -168,11 +168,11 @@ const actions = {
       }
 
       const permitSigner = new PermitSigner(domain, args)
-      const req = permitSigner.getReqPayload()
+      const message = permitSigner.getPayload()
 
       const callParams = {
         method: 'eth_signTypedData_v4',
-        params: [ethAccount, JSON.stringify(req)]
+        params: [ethAccount, JSON.stringify(message)]
       }
 
       dispatch(
@@ -186,10 +186,18 @@ const actions = {
         { root: true }
       )
 
-      const query = await this.$provider.sendRequest(callParams)
-      const { v, r, s, hex } = permitSigner.getSignature(query)
+      let signature = await this.$provider.sendRequest(callParams)
+      signature = signature.substring(2)
+      const r = '0x' + signature.substring(0, 64)
+      const s = '0x' + signature.substring(64, 128)
+      let v = parseInt(signature.substring(128, 130), 16)
 
-      console.log('signature', v, r, s, hex)
+      // fix ledger sign
+      if (v === 0 || v === 1) {
+        v = v + 27
+      }
+
+      console.log('signature', v, r, s, signature)
 
       // signature validation on contract
       await getters.tokenContract.methods
diff --git a/utils/index.js b/utils/index.js
index 566b88b..df30fec 100644
--- a/utils/index.js
+++ b/utils/index.js
@@ -8,12 +8,6 @@ export * from './stringUtils'
 export * from './numberUtils'
 export * from './instanceUtils'
 
-export function flattenNArray(arr) {
-  return arr.reduce((flat, toFlatten) => {
-    return flat.concat(Array.isArray(toFlatten) ? flattenNArray(toFlatten) : toFlatten)
-  }, [])
-}
-
 export function sleep(ms) {
   return new Promise((resolve) => setTimeout(resolve, ms))
 }
diff --git a/yarn.lock b/yarn.lock
index 779643d..4927b3c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1065,7 +1065,7 @@
   dependencies:
     regenerator-runtime "^0.13.4"
 
-"@babel/runtime@^7.5.5":
+"@babel/runtime@^7.4.4", "@babel/runtime@^7.5.5":
   version "7.17.7"
   resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.17.7.tgz#a5f3328dc41ff39d803f311cfe17703418cf9825"
   integrity sha512-L6rvG9GDxaLgFjg41K+5Yv9OMrU98sWe+Ykmc6FDJW/+vYZMhdOMKkISgzptMaERHvS2Y2lw9MDRm2gHhlQQoA==
@@ -1184,6 +1184,49 @@
   resolved "https://registry.yarnpkg.com/@csstools/convert-colors/-/convert-colors-1.4.0.tgz#ad495dc41b12e75d588c6db8b9834f08fa131eb7"
   integrity sha512-5a6wqoJV/xEdbRNKVo6I4hO3VjyDq//8q2f9I6PBAvMesJHFauXDorcNCsr9RzvsZnaWi5NYCcfyqP1QeFHFbw==
 
+"@ensdomains/address-encoder@^0.1.7":
+  version "0.1.9"
+  resolved "https://registry.yarnpkg.com/@ensdomains/address-encoder/-/address-encoder-0.1.9.tgz#f948c485443d9ef7ed2c0c4790e931c33334d02d"
+  integrity sha512-E2d2gP4uxJQnDu2Kfg1tHNspefzbLT8Tyjrm5sEuim32UkU2sm5xL4VXtgc2X33fmPEw9+jUMpGs4veMbf+PYg==
+  dependencies:
+    bech32 "^1.1.3"
+    blakejs "^1.1.0"
+    bn.js "^4.11.8"
+    bs58 "^4.0.1"
+    crypto-addr-codec "^0.1.7"
+    nano-base32 "^1.0.1"
+    ripemd160 "^2.0.2"
+
+"@ensdomains/ens@0.4.5":
+  version "0.4.5"
+  resolved "https://registry.yarnpkg.com/@ensdomains/ens/-/ens-0.4.5.tgz#e0aebc005afdc066447c6e22feb4eda89a5edbfc"
+  integrity sha512-JSvpj1iNMFjK6K+uVl4unqMoa9rf5jopb8cya5UGBWz23Nw8hSNT7efgUx4BTlAPAgpNlEioUfeTyQ6J9ZvTVw==
+  dependencies:
+    bluebird "^3.5.2"
+    eth-ens-namehash "^2.0.8"
+    solc "^0.4.20"
+    testrpc "0.0.1"
+    web3-utils "^1.0.0-beta.31"
+
+"@ensdomains/ensjs@^2.1.0":
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/@ensdomains/ensjs/-/ensjs-2.1.0.tgz#0a7296c1f3d735ef019320d863a7846a0760c460"
+  integrity sha512-GRbGPT8Z/OJMDuxs75U/jUNEC0tbL0aj7/L/QQznGYKm/tiasp+ndLOaoULy9kKJFC0TBByqfFliEHDgoLhyog==
+  dependencies:
+    "@babel/runtime" "^7.4.4"
+    "@ensdomains/address-encoder" "^0.1.7"
+    "@ensdomains/ens" "0.4.5"
+    "@ensdomains/resolver" "0.2.4"
+    content-hash "^2.5.2"
+    eth-ens-namehash "^2.0.8"
+    ethers "^5.0.13"
+    js-sha3 "^0.8.0"
+
+"@ensdomains/resolver@0.2.4":
+  version "0.2.4"
+  resolved "https://registry.yarnpkg.com/@ensdomains/resolver/-/resolver-0.2.4.tgz#c10fe28bf5efbf49bff4666d909aed0265efbc89"
+  integrity sha512-bvaTH34PMCbv6anRa9I/0zjLJgY4EuznbEMgbV77JBCQ9KNC46rzi0avuxpOfu+xDjPEtSFGqVEOr5GlUSGudA==
+
 "@ethereumjs/common@^2.3.0", "@ethereumjs/common@^2.4.0", "@ethereumjs/common@^2.5.0", "@ethereumjs/common@^2.6.1":
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/@ethereumjs/common/-/common-2.6.2.tgz#eb006c9329c75c80f634f340dc1719a5258244df"
@@ -2109,6 +2152,14 @@
   dependencies:
     defer-to-connect "^1.0.1"
 
+"@ticket721/e712@^0.4.1":
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/@ticket721/e712/-/e712-0.4.1.tgz#b9be3f5d9d01a8468e0a49eeed67fe4454c87582"
+  integrity sha512-JHqyb2HntsmLJ4PtlXQ2AoU+s42X1itRtxeCAlA1AxOMORXQudbhly9wvGhN/Hbcl8VYpfgLJKp4hK3AT6xDiw==
+  dependencies:
+    bn.js "5.1.1"
+    ethers "4.0.41"
+
 "@types/anymatch@*":
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/@types/anymatch/-/anymatch-1.3.1.tgz#336badc1beecb9dacc38bea2cf32adf627a8421a"
@@ -3940,7 +3991,7 @@ bcrypt-pbkdf@^1.0.0:
   dependencies:
     tweetnacl "^0.14.3"
 
-bech32@1.1.4:
+bech32@1.1.4, bech32@^1.1.3:
   version "1.1.4"
   resolved "https://registry.yarnpkg.com/bech32/-/bech32-1.1.4.tgz#e38c9f37bf179b8eb16ae3a772b40c356d4832e9"
   integrity sha512-s0IrSOzLlbvX7yp4WBfPITzpAU8sqQcpsmwXDiKwrG4r491vwCO/XpejasRNl0piBMe/DvP4Tz0mIS/X1DPJBQ==
@@ -3955,6 +4006,11 @@ bfj@^6.1.1:
     hoopy "^0.1.4"
     tryer "^1.0.1"
 
+big-integer@1.6.36:
+  version "1.6.36"
+  resolved "https://registry.yarnpkg.com/big-integer/-/big-integer-1.6.36.tgz#78631076265d4ae3555c04f85e7d9d2f3a071a36"
+  integrity sha512-t70bfa7HYEA1D9idDbmuv7YbsbVkQ+Hp+8KFSul4aE5e/i1bjCNIRYJZlA8Q8p0r9T8cF/RVvwUgRA//FydEyg==
+
 big-integer@1.6.42:
   version "1.6.42"
   resolved "https://registry.yarnpkg.com/big-integer/-/big-integer-1.6.42.tgz#91623ae5ceeff9a47416c56c9440a66f12f534f1"
@@ -4037,7 +4093,7 @@ bluebird@^3.1.1, bluebird@^3.5.5:
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.5.tgz#a8d0afd73251effbbd5fe384a77d73003c17a71f"
   integrity sha512-5am6HnnfN+urzt4yfg7IgTbotDjIT/u8AJpEt0sIU9FtXfVeezXAPKswrG+xKUCOYAINpSdgZVDU6QFh+cuH3w==
 
-bluebird@^3.5.0:
+bluebird@^3.5.0, bluebird@^3.5.2:
   version "3.7.2"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.7.2.tgz#9f229c15be272454ffa973ace0dbee79a1b0c36f"
   integrity sha512-XpNj6GDQzdfW+r2Wnn7xiSAd7TM3jzkxGXBGTtWKuSXv1xUV+azxAm8jdWZN06QTQk+2N2XB9jRDkvbmQmcRtg==
@@ -4052,6 +4108,11 @@ bn.js@4.11.8, bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.4.0:
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
   integrity sha512-ItfYfPLkWHUjckQCk8xC+LwxgK8NYcXywGigJgSwOP8Y2iyWT4f2vsZnoOXTTbo+o5yXmIUJ4gn5538SO5S3gA==
 
+bn.js@5.1.1:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-5.1.1.tgz#48efc4031a9c4041b9c99c6941d903463ab62eb5"
+  integrity sha512-IUTD/REb78Z2eodka1QZyyEk66pciRcP6Sroka0aI3tG/iwIdYLrBD62RsubR7vqdt3WyX8p4jxeatzmRSphtA==
+
 bn.js@^4.11.0, bn.js@^4.11.6, bn.js@^4.11.8, bn.js@^4.11.9:
   version "4.12.0"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.12.0.tgz#775b3f278efbb9718eec7361f483fb36fbbfea88"
@@ -4356,6 +4417,14 @@ buffer-xor@^1.0.3:
   resolved "https://registry.yarnpkg.com/buffer-xor/-/buffer-xor-1.0.3.tgz#26e61ed1422fb70dd42e6e36729ed51d855fe8d9"
   integrity sha1-JuYe0UIvtw3ULm42cp7VHYVf6Nk=
 
+buffer@6.0.3:
+  version "6.0.3"
+  resolved "https://registry.yarnpkg.com/buffer/-/buffer-6.0.3.tgz#2ace578459cc8fbe2a70aaa8f52ee63b6a74c6c6"
+  integrity sha512-FTiCpNxtwiZZHEZbcbTIcZjERVICn9yq/pDFkTl95/AxzD1naBctN7YO68riM/gLSDY7sdrMby8hofADYuuqOA==
+  dependencies:
+    base64-js "^1.3.1"
+    ieee754 "^1.2.1"
+
 buffer@^4.3.0:
   version "4.9.1"
   resolved "https://registry.yarnpkg.com/buffer/-/buffer-4.9.1.tgz#6d1bb601b07a4efced97094132093027c95bc298"
@@ -4554,6 +4623,11 @@ camel-case@^4.1.1:
     pascal-case "^3.1.2"
     tslib "^2.0.3"
 
+camelcase@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-3.0.0.tgz#32fc4b9fcdaf845fcdf7e73bb97cac2261f0ab0a"
+  integrity sha1-MvxLn82vhF/N9+c7uXysImHwqwo=
+
 camelcase@^4.0.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-4.1.0.tgz#d545635be1e33c542649c69173e5de6acfae34dd"
@@ -4912,6 +4986,15 @@ clipboard@^2.0.0:
     select "^1.1.2"
     tiny-emitter "^2.0.0"
 
+cliui@^3.2.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/cliui/-/cliui-3.2.0.tgz#120601537a916d29940f934da3b48d585a39213d"
+  integrity sha1-EgYBU3qRbSmUD5NNo7SNWFo5IT0=
+  dependencies:
+    string-width "^1.0.1"
+    strip-ansi "^3.0.1"
+    wrap-ansi "^2.0.0"
+
 cliui@^4.0.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-4.1.0.tgz#348422dbe82d800b3022eef4f6ac10bf2e4d1b49"
@@ -5394,6 +5477,19 @@ cross-spawn@^7.0.0:
     shebang-command "^2.0.0"
     which "^2.0.1"
 
+crypto-addr-codec@^0.1.7:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/crypto-addr-codec/-/crypto-addr-codec-0.1.7.tgz#e16cea892730178fe25a38f6d15b680cab3124ae"
+  integrity sha512-X4hzfBzNhy4mAc3UpiXEC/L0jo5E8wAa9unsnA8nNXYzXjCcGk83hfC5avJWCSGT8V91xMnAS9AKMHmjw5+XCg==
+  dependencies:
+    base-x "^3.0.8"
+    big-integer "1.6.36"
+    blakejs "^1.1.0"
+    bs58 "^4.0.1"
+    ripemd160-min "0.0.6"
+    safe-buffer "^5.2.0"
+    sha3 "^2.1.1"
+
 crypto-browserify@3.12.0, crypto-browserify@^3.11.0:
   version "3.12.0"
   resolved "https://registry.yarnpkg.com/crypto-browserify/-/crypto-browserify-3.12.0.tgz#396cf9f3137f03e4b8e532c58f698254e00f80ec"
@@ -5731,7 +5827,7 @@ debug@^4.2.0:
   dependencies:
     ms "2.1.2"
 
-decamelize@^1.2.0:
+decamelize@^1.1.1, decamelize@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
   integrity sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=
@@ -6080,6 +6176,19 @@ electron-to-chromium@^1.4.84:
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.4.86.tgz#90fe4a9787f48d6522957213408e08a8126b2ebc"
   integrity sha512-EVTZ+igi8x63pK4bPuA95PXIs2b2Cowi3WQwI9f9qManLiZJOD1Lash1J3W4TvvcUCcIR4o/rgi9o8UicXSO+w==
 
+elliptic@6.5.2:
+  version "6.5.2"
+  resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.2.tgz#05c5678d7173c049d8ca433552224a495d0e3762"
+  integrity sha512-f4x70okzZbIQl/NSRLkI/+tteV/9WqL98zx+SQ69KbXxmVrmjwsNUPn/gYJJ0sHvEak24cZgHIPegRePAtA/xw==
+  dependencies:
+    bn.js "^4.4.0"
+    brorand "^1.0.1"
+    hash.js "^1.0.0"
+    hmac-drbg "^1.0.0"
+    inherits "^2.0.1"
+    minimalistic-assert "^1.0.0"
+    minimalistic-crypto-utils "^1.0.0"
+
 elliptic@6.5.4, elliptic@^6.4.0, elliptic@^6.5.2, elliptic@^6.5.4:
   version "6.5.4"
   resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.4.tgz#da37cebd31e79a1367e941b592ed1fbebd58abbb"
@@ -6961,7 +7070,22 @@ ethereumjs-vm@^2.3.4:
     rustbn.js "~0.2.0"
     safe-buffer "^5.1.1"
 
-ethers@^5.5.1:
+ethers@4.0.41:
+  version "4.0.41"
+  resolved "https://registry.yarnpkg.com/ethers/-/ethers-4.0.41.tgz#a0cff526f08c2e08c525cf82ef4483f6333b8000"
+  integrity sha512-QpW2CPZajquwiA7rVDozMksOuvdUBKIruamAakt0++EKBB/VWtLB9zSRZDInLDpp9fZYgOT/0trPD38r6CzLIg==
+  dependencies:
+    aes-js "3.0.0"
+    bn.js "^4.4.0"
+    elliptic "6.5.2"
+    hash.js "1.1.3"
+    js-sha3 "0.5.7"
+    scrypt-js "2.0.4"
+    setimmediate "1.0.4"
+    uuid "2.0.1"
+    xmlhttprequest "1.8.0"
+
+ethers@^5.0.13, ethers@^5.5.1:
   version "5.6.1"
   resolved "https://registry.yarnpkg.com/ethers/-/ethers-5.6.1.tgz#a56cd67f1595b745dc3dde0ccf2b5de53a41a6d0"
   integrity sha512-qtl/2W+dwmUa5Z3JqwsbV3JEBZZHNARe5K/A2ePcNAuhJYnEKIgGOT/O9ouPwBijSqVoQnmQMzi5D48LFNOY2A==
@@ -7658,6 +7782,17 @@ from2@^2.1.0:
     inherits "^2.0.1"
     readable-stream "^2.0.0"
 
+fs-extra@^0.30.0:
+  version "0.30.0"
+  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-0.30.0.tgz#f233ffcc08d4da7d432daa449776989db1df93f0"
+  integrity sha1-8jP/zAjU2n1DLapEl3aYnbHfk/A=
+  dependencies:
+    graceful-fs "^4.1.2"
+    jsonfile "^2.1.0"
+    klaw "^1.0.0"
+    path-is-absolute "^1.0.0"
+    rimraf "^2.2.8"
+
 fs-extra@^4.0.2:
   version "4.0.3"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-4.0.3.tgz#0d852122e5bc5beb453fb028e9c0c9bf36340c94"
@@ -8070,11 +8205,21 @@ graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2, graceful-fs@^4.1.6
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.2.tgz#6f0952605d0140c1cfdb138ed005775b92d67b02"
   integrity sha512-IItsdsea19BoLC7ELy13q1iJFNmd7ofZH5+X/pJr90/nRoPEX0DJo1dHDbgtYWOhJhcCgMDTOw84RZ72q6lB+Q==
 
+graceful-fs@^4.1.3:
+  version "4.2.8"
+  resolved "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.8.tgz#e412b8d33f5e006593cbd3cee6df9f2cebbe802a"
+  integrity sha512-qkIilPUYcNhJpd33n0GBXTB1MMPp14TxEsEs0pTrsSVucApsYzW5V+Q8Qxhik6KU3evy+qkAAowTByymK0avdg==
+
 graceful-fs@^4.1.4:
   version "4.2.4"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.4.tgz#2256bde14d3632958c465ebc96dc467ca07a29fb"
   integrity sha512-WjKPNJF79dtJAVniUlGGWHYGz2jWxT6VhN/4m1NdkbZ2nOsEF+cI1Edgql5zCRhs/VsQYRvrXctxktVXZUkixw==
 
+graceful-fs@^4.1.9:
+  version "4.2.9"
+  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.9.tgz#041b05df45755e587a24942279b9d113146e1c96"
+  integrity sha512-NtNxqUcXgpW2iMrfqSfR73Glt39K+BLwWsPs94yR63v45T0Wbej7eRmL5cWfwEgqXnmjQp3zaJTshdRW/qC2ZQ==
+
 graceful-fs@^4.2.2:
   version "4.2.3"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.3.tgz#4a12ff1b60376ef09862c2093edd908328be8423"
@@ -8265,6 +8410,14 @@ hash-sum@^2.0.0:
   resolved "https://registry.yarnpkg.com/hash-sum/-/hash-sum-2.0.0.tgz#81d01bb5de8ea4a214ad5d6ead1b523460b0b45a"
   integrity sha512-WdZTbAByD+pHfl/g9QSsBIIwy8IT+EsPiKDs0KNX+zSHhdDLFKdZu0BQHljvO+0QI/BasbMSUa8wYNCZTvhslg==
 
+hash.js@1.1.3:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/hash.js/-/hash.js-1.1.3.tgz#340dedbe6290187151c1ea1d777a3448935df846"
+  integrity sha512-/UETyP0W22QILqS+6HowevwhEFJ3MBJnwTf75Qob9Wz9t0DPuisL8kW8YZMK62dHAKE1c1p+gY1TtOLY+USEHA==
+  dependencies:
+    inherits "^2.0.3"
+    minimalistic-assert "^1.0.0"
+
 hash.js@1.1.7, hash.js@^1.0.0, hash.js@^1.0.3, hash.js@^1.1.7:
   version "1.1.7"
   resolved "https://registry.yarnpkg.com/hash.js/-/hash.js-1.1.7.tgz#0babca538e8d4ee4a0f8988d68866537a003cf42"
@@ -8502,6 +8655,11 @@ ieee754@^1.1.13, ieee754@^1.1.4:
   resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.1.13.tgz#ec168558e95aa181fd87d37f55c32bbcb6708b84"
   integrity sha512-4vf7I2LYV/HaWerSo3XmlMkp5eZ83i+/CDluXi/IGTs/O1sejBNhTtnxzmRZfvOUqj7lZjqHkeTvpgSFDlWZTg==
 
+ieee754@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.2.1.tgz#8eb7a10a63fff25d15a57b001586d177d1b0d352"
+  integrity sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA==
+
 iferr@^0.1.5:
   version "0.1.5"
   resolved "https://registry.yarnpkg.com/iferr/-/iferr-0.1.5.tgz#c60eed69e6d8fdb6b3104a1fcbca1c192dc5b501"
@@ -8539,6 +8697,11 @@ immediate@^3.2.3:
   resolved "https://registry.yarnpkg.com/immediate/-/immediate-3.3.0.tgz#1aef225517836bcdf7f2a2de2600c79ff0269266"
   integrity sha512-HR7EVodfFUdQCTIeySw+WDRFJlPcLOJbXfwwZ7Oom6tjsvZ3bOkCDJHehQC3nxJrv7+f9XecwazynjU8e4Vw3Q==
 
+immediate@~3.0.5:
+  version "3.0.6"
+  resolved "https://registry.yarnpkg.com/immediate/-/immediate-3.0.6.tgz#9db1dbd0faf8de6fbe0f5dd5e56bb606280de69b"
+  integrity sha1-nbHb0Pr43m++D13V5Wu2BigN5ps=
+
 immutable@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/immutable/-/immutable-4.0.0.tgz#b86f78de6adef3608395efb269a91462797e2c23"
@@ -8718,6 +8881,11 @@ invariant@^2.2.2, invariant@^2.2.4:
   dependencies:
     loose-envify "^1.0.0"
 
+invert-kv@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-1.0.0.tgz#104a8e4aaca6d3d8cd157a8ef8bfab2d7a3ffdb6"
+  integrity sha1-EEqOSqym09jNFXqO+L+rLXo//bY=
+
 invert-kv@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-2.0.0.tgz#7393f5afa59ec9ff5f67a27620d11c226e3eec02"
@@ -9199,6 +9367,11 @@ is-typedarray@1.0.0, is-typedarray@^1.0.0, is-typedarray@~1.0.0:
   resolved "https://registry.yarnpkg.com/is-typedarray/-/is-typedarray-1.0.0.tgz#e479c80858df0c1b11ddda6940f96011fcda4a9a"
   integrity sha1-5HnICFjfDBsR3dppQPlgEfzaSpo=
 
+is-utf8@^0.2.0:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/is-utf8/-/is-utf8-0.2.1.tgz#4b0da1442104d1b336340e80797e865cf39f7d72"
+  integrity sha1-Sw2hRCEE0bM2NA6AeX6GXPOffXI=
+
 is-weakref@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-weakref/-/is-weakref-1.0.2.tgz#9529f383a9338205e89765e0392efc2f100f06f2"
@@ -9684,16 +9857,16 @@ js-beautify@^1.6.14:
     mkdirp "~0.5.1"
     nopt "~4.0.1"
 
+js-sha3@0.5.7, js-sha3@^0.5.7:
+  version "0.5.7"
+  resolved "https://registry.yarnpkg.com/js-sha3/-/js-sha3-0.5.7.tgz#0d4ffd8002d5333aabaf4a23eed2f6374c9f28e7"
+  integrity sha1-DU/9gALVMzqrr0oj7tL2N0yfKOc=
+
 js-sha3@0.8.0, js-sha3@^0.8.0:
   version "0.8.0"
   resolved "https://registry.yarnpkg.com/js-sha3/-/js-sha3-0.8.0.tgz#b9b7a5da73afad7dedd0f8c463954cbde6818840"
   integrity sha512-gF1cRrHhIzNfToc802P800N8PpXS+evLLXfsVpowqmAFR9uwbi89WvXg2QspOmXL8QL86J4T1EpFu+yUkwJY3Q==
 
-js-sha3@^0.5.7:
-  version "0.5.7"
-  resolved "https://registry.yarnpkg.com/js-sha3/-/js-sha3-0.5.7.tgz#0d4ffd8002d5333aabaf4a23eed2f6374c9f28e7"
-  integrity sha1-DU/9gALVMzqrr0oj7tL2N0yfKOc=
-
 "js-tokens@^3.0.0 || ^4.0.0", js-tokens@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
@@ -9879,6 +10052,13 @@ json5@^2.1.2:
   dependencies:
     minimist "^1.2.5"
 
+jsonfile@^2.1.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-2.4.0.tgz#3736a2b428b87bbda0cc83b53fa3d633a35c2ae8"
+  integrity sha1-NzaitCi4e72gzIO1P6PWM6NcKug=
+  optionalDependencies:
+    graceful-fs "^4.1.6"
+
 jsonfile@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-4.0.0.tgz#8771aae0799b64076b76640fca058f9c10e33ecb"
@@ -9913,6 +10093,23 @@ jsprim@^1.2.2:
     json-schema "0.2.3"
     verror "1.10.0"
 
+jszip@^2.5.0:
+  version "2.6.1"
+  resolved "https://registry.npmjs.org/jszip/-/jszip-2.6.1.tgz#b88f3a7b2e67a2a048152982c7a3756d9c4828f0"
+  integrity sha1-uI86ey5noqBIFSmCx6N1bZxIKPA=
+  dependencies:
+    pako "~1.0.2"
+
+jszip@^3.5.0:
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/jszip/-/jszip-3.5.0.tgz#b4fd1f368245346658e781fec9675802489e15f6"
+  integrity sha512-WRtu7TPCmYePR1nazfrtuF216cIVon/3GWOvHS9QR5bIwSbnxtdpma6un3jyGGNhHsKCSzn5Ypk+EkDRvTGiFA==
+  dependencies:
+    lie "~3.3.0"
+    pako "~1.0.2"
+    readable-stream "~2.3.6"
+    set-immediate-shim "~1.0.1"
+
 keccak@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/keccak/-/keccak-2.1.0.tgz#734ea53f2edcfd0f42cdb8d5f4c358fef052752b"
@@ -9968,6 +10165,13 @@ kind-of@^6.0.0, kind-of@^6.0.2:
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-6.0.2.tgz#01146b36a6218e64e58f3a8d66de5d7fc6f6d051"
   integrity sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==
 
+klaw@^1.0.0:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/klaw/-/klaw-1.3.1.tgz#4088433b46b3b1ba259d78785d8e96f73ba02439"
+  integrity sha1-QIhDO0azsbolnXh4XY6W9zugJDk=
+  optionalDependencies:
+    graceful-fs "^4.1.9"
+
 kleur@^3.0.3:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/kleur/-/kleur-3.0.3.tgz#a79c9ecc86ee1ce3fa6206d1216c501f147fc07e"
@@ -10003,6 +10207,13 @@ launch-editor@^2.2.1:
     chalk "^2.3.0"
     shell-quote "^1.6.1"
 
+lcid@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/lcid/-/lcid-1.0.0.tgz#308accafa0bc483a3867b4b6f2b9506251d1b835"
+  integrity sha1-MIrMr6C8SDo4Z7S28rlQYlHRuDU=
+  dependencies:
+    invert-kv "^1.0.0"
+
 lcid@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/lcid/-/lcid-2.0.0.tgz#6ef5d2df60e52f82eb228a4c373e8d1f397253cf"
@@ -10078,6 +10289,24 @@ levn@^0.3.0, levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
+lie@~3.3.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/lie/-/lie-3.3.0.tgz#dcf82dee545f46074daf200c7c1c5a08e0f40f6a"
+  integrity sha512-UaiMJzeWRlEujzAuw5LokY1L5ecNQYZKfmyZ9L7wDHb/p5etKaxXhohBcrw0EYby+G/NA52vRSN4N39dxHAIwQ==
+  dependencies:
+    immediate "~3.0.5"
+
+load-json-file@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
+  integrity sha1-lWkFcI1YtLq0wiYbBPWfMcmTdMA=
+  dependencies:
+    graceful-fs "^4.1.2"
+    parse-json "^2.2.0"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+    strip-bom "^2.0.0"
+
 load-json-file@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-2.0.0.tgz#7947e42149af80d696cbf797bcaabcfe1fe29ca8"
@@ -10166,6 +10395,11 @@ lodash._reinterpolate@^3.0.0:
   resolved "https://registry.yarnpkg.com/lodash._reinterpolate/-/lodash._reinterpolate-3.0.0.tgz#0ccf2d89166af03b3663c796538b75ac6e114d9d"
   integrity sha1-DM8tiRZq8Ds2Y8eWU4t1rG4RTZ0=
 
+lodash.assign@^4.0.3, lodash.assign@^4.0.6:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/lodash.assign/-/lodash.assign-4.2.0.tgz#0d99f3ccd7a6d261d19bdaeb9245005d285808e7"
+  integrity sha1-DZnzzNem0mHRm9rrkkUAXShYCOc=
+
 lodash.camelcase@^4.1.1:
   version "4.3.0"
   resolved "https://registry.yarnpkg.com/lodash.camelcase/-/lodash.camelcase-4.3.0.tgz#b28aa6288a2b9fc651035c7711f65ab6190331a6"
@@ -10450,6 +10684,11 @@ memory-fs@^0.5.0:
     errno "^0.1.3"
     readable-stream "^2.0.1"
 
+memorystream@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/memorystream/-/memorystream-0.3.1.tgz#86d7090b30ce455d63fbae12dda51a47ddcaf9b2"
+  integrity sha1-htcJCzDORV1j+64S3aUaR93K+bI=
+
 merge-descriptors@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
@@ -10898,6 +11137,11 @@ nan@^2.14.0:
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.15.0.tgz#3f34a473ff18e15c1b5626b62903b5ad6e665fee"
   integrity sha512-8ZtvEnA2c5aYCZYd1cvgdnU6cqwixRoYg70xPLWUws5ORTa/lnw+u4amixRS/Ac5U5mQVgp9pnlSUnbNWFaWZQ==
 
+nano-base32@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/nano-base32/-/nano-base32-1.0.1.tgz#ba548c879efcfb90da1c4d9e097db4a46c9255ef"
+  integrity sha1-ulSMh578+5DaHE2eCX20pGySVe8=
+
 nano-json-stream-parser@^0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/nano-json-stream-parser/-/nano-json-stream-parser-0.1.2.tgz#0cc8f6d0e2b622b479c40d499c46d64b755c6f5f"
@@ -11123,6 +11367,11 @@ node-res@^5.0.1:
     on-finished "^2.3.0"
     vary "^1.1.2"
 
+node-stream-zip@^1.15.0:
+  version "1.15.0"
+  resolved "https://registry.npmjs.org/node-stream-zip/-/node-stream-zip-1.15.0.tgz#158adb88ed8004c6c49a396b50a6a5de3bca33ea"
+  integrity sha512-LN4fydt9TqhZhThkZIVQnF9cwjU3qmUH9h78Mx/K7d3VvfRqqwthLwJEUOEL0QPZ0XQmNN7be5Ggit5+4dq3Bw==
+
 nodemon@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/nodemon/-/nodemon-2.0.0.tgz#1c19aa3c668fcf5dddd1121555efb90e315d8edd"
@@ -11516,6 +11765,13 @@ os-homedir@^1.0.0:
   resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
   integrity sha1-/7xJiDNuDoM94MFox+8VISGqf7M=
 
+os-locale@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-1.4.0.tgz#20f9f17ae29ed345e8bde583b13d2009803c14d9"
+  integrity sha1-IPnxeuKe00XoveWDsT0gCYA8FNk=
+  dependencies:
+    lcid "^1.0.0"
+
 os-locale@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-3.1.0.tgz#a802a6ee17f24c10483ab9935719cef4ed16bf1a"
@@ -11665,6 +11921,11 @@ package-json@^4.0.0:
     registry-url "^3.0.3"
     semver "^5.1.0"
 
+pako@~1.0.2:
+  version "1.0.11"
+  resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.11.tgz#6c9599d340d54dfd3946380252a35705a6b992bf"
+  integrity sha512-4hLB8Py4zZce5s4yd9XzopqwVv/yGNhV1Bl8NTmCq1763HeK2+EwVTv+leGeL13Dnh2wfbqowVPXCIO0z4taYw==
+
 pako@~1.0.5:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.10.tgz#4328badb5086a426aa90f541977d4955da5c9732"
@@ -11859,6 +12120,15 @@ path-to-regexp@0.1.7:
   resolved "https://registry.yarnpkg.com/path-to-regexp/-/path-to-regexp-0.1.7.tgz#df604178005f522f15eb4490e7247a1bfaa67f8c"
   integrity sha1-32BBeABfUi8V60SQ5yR6G/qmf4w=
 
+path-type@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/path-type/-/path-type-1.1.0.tgz#59c44f7ee491da704da415da5a4070ba4f8fe441"
+  integrity sha1-WcRPfuSR2nBNpBXaWkBwuk+P5EE=
+  dependencies:
+    graceful-fs "^4.1.2"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+
 path-type@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/path-type/-/path-type-2.0.0.tgz#f012ccb8415b7096fc2daa1054c3d72389594c73"
@@ -12919,7 +13189,7 @@ push-dir@^0.4.1:
   dependencies:
     minimist "^1.2.0"
 
-q@^1.1.2:
+q@^1.1.2, q@^1.4.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/q/-/q-1.5.1.tgz#7e32f75b41381291d04611f1bf14109ac00651d7"
   integrity sha1-fjL3W0E4EpHQRhHxvxQQmsAGUdc=
@@ -13081,6 +13351,14 @@ read-cache@^1.0.0:
   dependencies:
     pify "^2.3.0"
 
+read-pkg-up@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-1.0.1.tgz#9d63c13276c065918d57f002a57f40a1b643fb02"
+  integrity sha1-nWPBMnbAZZGNV/ACpX9AobZD+wI=
+  dependencies:
+    find-up "^1.0.0"
+    read-pkg "^1.0.0"
+
 read-pkg-up@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-2.0.0.tgz#6b72a8048984e0c41e79510fd5e9fa99b3b549be"
@@ -13097,6 +13375,15 @@ read-pkg-up@^4.0.0:
     find-up "^3.0.0"
     read-pkg "^3.0.0"
 
+read-pkg@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-1.1.0.tgz#f5ffaa5ecd29cb31c0474bca7d756b6bb29e3f28"
+  integrity sha1-9f+qXs0pyzHAR0vKfXVra7KePyg=
+  dependencies:
+    load-json-file "^1.0.0"
+    normalize-package-data "^2.3.2"
+    path-type "^1.0.0"
+
 read-pkg@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-2.0.0.tgz#8ef1c0623c6a6db0dc6713c4bfac46332b2368f8"
@@ -13465,6 +13752,11 @@ require-directory@^2.1.1:
   resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
   integrity sha1-jGStX9MNqxyXbiNE/+f3kqam30I=
 
+require-from-string@^1.1.0:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/require-from-string/-/require-from-string-1.2.1.tgz#529c9ccef27380adfec9a2f965b649bbee636418"
+  integrity sha1-UpyczvJzgK3+yaL5ZbZJu+5jZBg=
+
 require-main-filename@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
@@ -13583,14 +13875,19 @@ rimraf@2.6.3:
   dependencies:
     glob "^7.1.3"
 
-rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.2, rimraf@^2.6.3, rimraf@^2.7.1:
+rimraf@^2.2.8, rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.2, rimraf@^2.6.3, rimraf@^2.7.1:
   version "2.7.1"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.7.1.tgz#35797f13a7fdadc566142c29d4f07ccad483e3ec"
   integrity sha512-uWjbaKIK3T1OSVptzX7Nl6PvQ3qAGtKEtVRjRuazjfL3Bx5eI409VZSqgND+4UNnmzLVdPj9FqFJNPqBZFve4w==
   dependencies:
     glob "^7.1.3"
 
-ripemd160@^2.0.0, ripemd160@^2.0.1:
+ripemd160-min@0.0.6:
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/ripemd160-min/-/ripemd160-min-0.0.6.tgz#a904b77658114474d02503e819dcc55853b67e62"
+  integrity sha512-+GcJgQivhs6S9qvLogusiTcS9kQUfgR75whKuy5jIhuiOfQuJ8fjqxV6EGD5duH1Y/FawFUMtMhyeq3Fbnib8A==
+
+ripemd160@^2.0.0, ripemd160@^2.0.1, ripemd160@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/ripemd160/-/ripemd160-2.0.2.tgz#a1c1a6f624751577ba5d07914cbc92850585890c"
   integrity sha512-ii4iagi25WusVoiC4B4lq7pbXfAp3D9v5CwfkY33vffw2+pkDjY1D8GaN7spsxvCSx8dkPqOZCEZyfxcmJG2IA==
@@ -13777,6 +14074,11 @@ schema-utils@^3.0.0:
     ajv "^6.12.5"
     ajv-keywords "^3.5.2"
 
+scrypt-js@2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/scrypt-js/-/scrypt-js-2.0.4.tgz#32f8c5149f0797672e551c07e230f834b6af5f16"
+  integrity sha512-4KsaGcPnuhtCZQCxFxN3GVYIhKFPTdLd8PLC552XwbMndtD0cjRFAhDuuydXQ0h08ZfPgzqe6EKHozpuH74iDw==
+
 scrypt-js@3.0.1, scrypt-js@^3.0.0, scrypt-js@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/scrypt-js/-/scrypt-js-3.0.1.tgz#d314a57c2aef69d1ad98a138a21fe9eafa9ee312"
@@ -13947,7 +14249,7 @@ set-blocking@^2.0.0, set-blocking@~2.0.0:
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
   integrity sha1-BF+XgtARrppoA93TgrJDkrPYkPc=
 
-set-immediate-shim@^1.0.1:
+set-immediate-shim@^1.0.1, set-immediate-shim@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/set-immediate-shim/-/set-immediate-shim-1.0.1.tgz#4b2b1b27eb808a9f8dcc481a58e5e56f599f3f61"
   integrity sha1-SysbJ+uAip+NzEgaWOXlb1mfP2E=
@@ -13962,6 +14264,11 @@ set-value@^2.0.0, set-value@^2.0.1:
     is-plain-object "^2.0.3"
     split-string "^3.0.1"
 
+setimmediate@1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/setimmediate/-/setimmediate-1.0.4.tgz#20e81de622d4a02588ce0c8da8973cbcf1d3138f"
+  integrity sha1-IOgd5iLUoCWIzgyNqJc8vPHTE48=
+
 setimmediate@^1.0.4, setimmediate@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/setimmediate/-/setimmediate-1.0.5.tgz#290cbb232e306942d7d7ea9b83732ab7856f8285"
@@ -13985,6 +14292,13 @@ sha.js@^2.4.0, sha.js@^2.4.8:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
 
+sha3@^2.1.1:
+  version "2.1.4"
+  resolved "https://registry.yarnpkg.com/sha3/-/sha3-2.1.4.tgz#000fac0fe7c2feac1f48a25e7a31b52a6492cc8f"
+  integrity sha512-S8cNxbyb0UGUM2VhRD4Poe5N58gJnJsLJ5vC7FYWGUmGhcsj4++WaIOBFVDxlG0W3To6xBuiRh+i0Qp2oNCOtg==
+  dependencies:
+    buffer "6.0.3"
+
 shallow-clone@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/shallow-clone/-/shallow-clone-3.0.1.tgz#8f2981ad92531f55035b01fb230769a40e02efa3"
@@ -14146,6 +14460,17 @@ snapdragon@^0.8.1:
     keccak "^2.0.0"
     yargs "^12.0.5"
 
+solc@^0.4.20:
+  version "0.4.26"
+  resolved "https://registry.yarnpkg.com/solc/-/solc-0.4.26.tgz#5390a62a99f40806b86258c737c1cf653cc35cb5"
+  integrity sha512-o+c6FpkiHd+HPjmjEVpQgH7fqZ14tJpXhho+/bQXlXbliLIS/xjXb42Vxh+qQY1WCSTMQ0+a5vR9vi0MfhU6mA==
+  dependencies:
+    fs-extra "^0.30.0"
+    memorystream "^0.3.1"
+    require-from-string "^1.1.0"
+    semver "^5.3.0"
+    yargs "^4.7.1"
+
 sort-keys@^1.0.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/sort-keys/-/sort-keys-1.1.2.tgz#441b6d4d346798f1b4e49e8920adfba0e543f9ad"
@@ -14513,6 +14838,13 @@ strip-ansi@^6.0.0:
   dependencies:
     ansi-regex "^5.0.0"
 
+strip-bom@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-2.0.0.tgz#6219a85616520491f35788bdbf1447a99c7e6b0e"
+  integrity sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=
+  dependencies:
+    is-utf8 "^0.2.0"
+
 strip-bom@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-3.0.0.tgz#2334c18e9c759f7bdd56fdef7e9ae3d588e68ed3"
@@ -14756,6 +15088,11 @@ test-exclude@^5.2.3:
     read-pkg-up "^4.0.0"
     require-main-filename "^2.0.0"
 
+testrpc@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/testrpc/-/testrpc-0.0.1.tgz#83e2195b1f5873aec7be1af8cbe6dcf39edb7aed"
+  integrity sha512-afH1hO+SQ/VPlmaLUFj2636QMeDvPCeQMc/9RBMW0IfjNe9gFD9Ra3ShqYkB7py0do1ZcCna/9acHyzTJ+GcNA==
+
 text-table@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/text-table/-/text-table-0.2.0.tgz#7f5ee823ae805207c00af2df4a84ec3fcfa570b4"
@@ -15349,6 +15686,11 @@ utils-merge@1.0.1:
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
   integrity sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM=
 
+uuid@2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/uuid/-/uuid-2.0.1.tgz#c2a30dedb3e535d72ccf82e343941a50ba8533ac"
+  integrity sha1-wqMN7bPlNdcsz4LjQ5QaULqFM6w=
+
 uuid@3.3.2:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.2.tgz#1b4af4955eb3077c501c23872fc6513811587131"
@@ -16066,7 +16408,7 @@ web3-utils@1.5.2:
     randombytes "^2.1.0"
     utf8 "3.0.0"
 
-web3-utils@1.7.1, web3-utils@^1.3.0:
+web3-utils@1.7.1, web3-utils@^1.0.0-beta.31, web3-utils@^1.3.0:
   version "1.7.1"
   resolved "https://registry.yarnpkg.com/web3-utils/-/web3-utils-1.7.1.tgz#77d8bacaf426c66027d8aa4864d77f0ed211aacd"
   integrity sha512-fef0EsqMGJUgiHPdX+KN9okVWshbIumyJPmR+btnD1HgvoXijKEkuKBv0OmUqjbeqmLKP2/N9EiXKJel5+E1Dw==
@@ -16291,6 +16633,11 @@ which-boxed-primitive@^1.0.2:
     is-string "^1.0.5"
     is-symbol "^1.0.3"
 
+which-module@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/which-module/-/which-module-1.0.0.tgz#bba63ca861948994ff307736089e3b96026c2a4f"
+  integrity sha1-u6Y8qGGUiZT/MHc2CJ47lgJsKk8=
+
 which-module@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
@@ -16343,6 +16690,11 @@ widest-line@^3.1.0:
   dependencies:
     string-width "^4.0.0"
 
+window-size@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.2.0.tgz#b4315bb4214a3d7058ebeee892e13fa24d98b075"
+  integrity sha1-tDFbtCFKPXBY6+7okuE/ok2YsHU=
+
 wordwrap@~0.0.2:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
@@ -16525,6 +16877,11 @@ xmldom@^0.1.22:
   resolved "https://registry.yarnpkg.com/xmldom/-/xmldom-0.1.31.tgz#b76c9a1bd9f0a9737e5a72dc37231cf38375e2ff"
   integrity sha512-yS2uJflVQs6n+CyjHoaBmVSqIDevTAWrzMmjG1Gc7h1qQ7uVozNhEPJAwZXWyGQ/Gafo3fCwrcaokezLPupVyQ==
 
+xmlhttprequest@1.8.0:
+  version "1.8.0"
+  resolved "https://registry.yarnpkg.com/xmlhttprequest/-/xmlhttprequest-1.8.0.tgz#67fe075c5c24fef39f9d65f5f7b7fe75171968fc"
+  integrity sha1-Z/4HXFwk/vOfnWX197f+dRcZaPw=
+
 xtend@^4.0.0, xtend@^4.0.1, xtend@~4.0.0, xtend@~4.0.1:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"
@@ -16544,6 +16901,11 @@ xxhashjs@^0.2.1:
   dependencies:
     cuint "^0.2.2"
 
+y18n@^3.2.1:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.2.tgz#85c901bd6470ce71fc4bb723ad209b70f7f28696"
+  integrity sha512-uGZHXkHnhF0XeeAPgnKfPv1bgKAYyVvmNL1xlKsPYZPaIHxGti2hHqvOCQv71XMsLxu1QjergkqogUnms5D3YQ==
+
 "y18n@^3.2.1 || ^4.0.0":
   version "4.0.3"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.3.tgz#b5f259c82cd6e336921efd7bfd8bf560de9eeedf"
@@ -16603,6 +16965,14 @@ yargs-parser@^13.1.2:
     camelcase "^5.0.0"
     decamelize "^1.2.0"
 
+yargs-parser@^2.4.1:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-2.4.1.tgz#85568de3cf150ff49fa51825f03a8c880ddcc5c4"
+  integrity sha1-hVaN488VD/SfpRgl8DqMiA3cxcQ=
+  dependencies:
+    camelcase "^3.0.0"
+    lodash.assign "^4.0.6"
+
 yargs@^12.0.5:
   version "12.0.5"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-12.0.5.tgz#05f5997b609647b64f66b81e3b4b10a368e7ad13"
@@ -16653,7 +17023,37 @@ yargs@^13.3.0:
     y18n "^4.0.0"
     yargs-parser "^13.1.1"
 
+yargs@^4.7.1:
+  version "4.8.1"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-4.8.1.tgz#c0c42924ca4aaa6b0e6da1739dfb216439f9ddc0"
+  integrity sha1-wMQpJMpKqmsObaFznfshZDn53cA=
+  dependencies:
+    cliui "^3.2.0"
+    decamelize "^1.1.1"
+    get-caller-file "^1.0.1"
+    lodash.assign "^4.0.3"
+    os-locale "^1.4.0"
+    read-pkg-up "^1.0.1"
+    require-directory "^2.1.1"
+    require-main-filename "^1.0.1"
+    set-blocking "^2.0.0"
+    string-width "^1.0.1"
+    which-module "^1.0.0"
+    window-size "^0.2.0"
+    y18n "^3.2.1"
+    yargs-parser "^2.4.1"
+
 zen-observable@^0.8.14:
   version "0.8.15"
   resolved "https://registry.npmjs.org/zen-observable/-/zen-observable-0.8.15.tgz#96415c512d8e3ffd920afd3889604e30b9eaac15"
   integrity sha512-PQ2PC7R9rslx84ndNBZB/Dkv8V8fZEpk83RLgXtYd0fwUgEjseMn1Dgajh2x6S8QbZAFa9p2qVCEuYZNgve0dQ==
+
+zip-local@^0.3.4:
+  version "0.3.4"
+  resolved "https://registry.npmjs.org/zip-local/-/zip-local-0.3.4.tgz#e2931907257a946479ea5bd0d0e20adfeb2b5a07"
+  integrity sha1-4pMZByV6lGR56lvQ0OIK3+srWgc=
+  dependencies:
+    async "^1.4.2"
+    graceful-fs "^4.1.3"
+    jszip "^2.5.0"
+    q "^1.4.1"