diff --git a/package.json b/package.json
index d356f71..9aa1c36 100644
--- a/package.json
+++ b/package.json
@@ -67,10 +67,12 @@
   },
   "dependencies": {
     "babel-runtime": "^6.26.0",
+    "eth-sig-util": "^1.4.2",
     "kleros": "^0.0.5",
     "kleros-interaction": "^0.0.8",
     "lodash": "^4.17.4",
     "truffle-contract": "^2.0.5",
-    "web3": "^0.20.1"
+    "web3": "^0.20.1",
+    "web3-eth-personal": "^1.0.0-beta.34"
   }
 }
diff --git a/src/constants/error.js b/src/constants/error.js
index 5ced8f7..30730fd 100644
--- a/src/constants/error.js
+++ b/src/constants/error.js
@@ -80,3 +80,8 @@ export const MISSING_STORE_PROVIDER =
 export const MISSING_CONTRACT_INSTANCE = contractAddress =>
   `No contract instance stored for ${contractAddress}. Please call addContractInstance.`
 export const ERROR_FETCHING_EVENTS = error => `Unable to fetch events: ${error}`
+
+// Auth
+export const UNABLE_TO_SIGN_TOKEN = `There was an error signing the auth token. Please try again`
+export const INVALID_AUTH_TOKEN = msg =>
+  `Authorization Token is invalid: ${msg}`
diff --git a/src/contracts/ContractImplementation.js b/src/contracts/ContractImplementation.js
index 33c45b0..5dcdcd1 100644
--- a/src/contracts/ContractImplementation.js
+++ b/src/contracts/ContractImplementation.js
@@ -147,7 +147,6 @@ class ContractImplementation {
       this._contractLoadedRejecter = reject
     })
 
-  // we have getters so that abstract classes can provide public access to implementations variables
   /**
    * Get the contract address for the currently instantiated contract.
    * @returns {string} - The address of the contract.
diff --git a/src/contracts/abstractions/Arbitrable.js b/src/contracts/abstractions/Arbitrable.js
index acc46a8..6a8b58b 100644
--- a/src/contracts/abstractions/Arbitrable.js
+++ b/src/contracts/abstractions/Arbitrable.js
@@ -160,10 +160,12 @@ class ArbitrableContract extends AbstractContract {
   getData = async account => {
     const contractData = await this._contractImplementation.getData()
 
-    const storeData = await this._StoreProvider.getContractByAddress(
-      account,
-      this._contractImplementation.contractAddress
-    )
+    let storeData = {}
+    if (account)
+      storeData = await this._StoreProvider.getContractByAddress(
+        account,
+        this._contractImplementation.contractAddress
+      )
 
     return Object.assign({}, storeData, contractData)
   }
diff --git a/src/contracts/abstractions/Arbitrator.js b/src/contracts/abstractions/Arbitrator.js
index d09d54a..907763c 100644
--- a/src/contracts/abstractions/Arbitrator.js
+++ b/src/contracts/abstractions/Arbitrator.js
@@ -24,8 +24,8 @@ class Arbitrator extends AbstractContract {
 
     const _getDisputesForUserFromStore = async account =>
       Promise.all(
-        (await this._StoreProvider.getDisputesForUser(account)).map(dispute =>
-          this._contractImplementation.getDispute(dispute.disputeId, account)
+        (await this._StoreProvider.getDisputes(account)).map(dispute =>
+          this._contractImplementation.getDispute(dispute.disputeId)
         )
       )
 
diff --git a/src/contracts/implementations/arbitrator/KlerosPOC.js b/src/contracts/implementations/arbitrator/KlerosPOC.js
index 27c2a4e..6b29731 100644
--- a/src/contracts/implementations/arbitrator/KlerosPOC.js
+++ b/src/contracts/implementations/arbitrator/KlerosPOC.js
@@ -473,11 +473,12 @@ class KlerosPOC extends ContractImplementation {
     const openDisputes = await this.getOpenDisputesForSession()
 
     const disputes = await Promise.all(
-      openDisputes.map(async disputeId => {
-        const draws = await this.getDrawsForJuror(disputeId, account)
-
-        const disputeData = await this.getDispute(disputeId)
-        disputeData.appealDraws = []
+      openDisputes.map(async disputeData => {
+        const draws = await this.getDrawsForJuror(
+          disputeData.disputeId,
+          account
+        )
+        disputeData.appealDraws = disputeData.appealDraws || []
         disputeData.appealDraws[disputeData.numberOfAppeals] = draws
 
         return disputeData
@@ -539,7 +540,7 @@ class KlerosPOC extends ContractImplementation {
 
       // If dispute is in the current session, add it to the result array
       if (dispute.firstSession + dispute.numberOfAppeals === currentSession)
-        openDisputes.push(disputeId)
+        openDisputes.push(dispute)
 
       // Advance to the next dispute
       disputeId++
diff --git a/src/kleros.js b/src/kleros.js
index 05cd47c..e70e5bb 100644
--- a/src/kleros.js
+++ b/src/kleros.js
@@ -33,12 +33,14 @@ class Kleros {
    *                 use when initializing KlerosPOC
    * @param {string} arbitrableContractAddress - Address of the arbitrator contract we should
    *                 use when initializing KlerosPOC
+   * @param {string} authToken - Signed token cooresponding to the user profile address.
    */
   constructor(
     ethereumProvider = isRequired('ethereumProvider'),
     storeUri = isRequired('storeUri'),
     arbitratorAddress,
-    arbitrableContractAddress
+    arbitrableContractAddress,
+    authToken
   ) {
     // NOTE we default to KlerosPOC and ArbitrableTransaction
     const _klerosPOC = new contracts.implementations.arbitrator.KlerosPOC(
@@ -55,7 +57,7 @@ class Kleros {
     // **************************** //
     // KLEROS WRAPPERS
     this.web3Wrapper = new Web3Wrapper(ethereumProvider)
-    this.storeWrapper = new StoreProviderWrapper(storeUri)
+    this.storeWrapper = new StoreProviderWrapper(storeUri, authToken)
     // ARBITRATOR
     this.arbitrator = new contracts.abstractions.Arbitrator(
       _klerosPOC,
@@ -78,6 +80,8 @@ class Kleros {
       this.arbitrable,
       this.storeWrapper
     )
+    // AUTH
+    this.auth = new resources.Auth(this.web3Wrapper, this.storeWrapper)
   }
 
   /**
@@ -137,6 +141,7 @@ class Kleros {
     this.arbitrable.setStoreProviderInstance(this.storeWrapper)
     this.arbitrator.setStoreProviderInstance(this.storeWrapper)
     this.notifications.setStoreProviderInstance(this.storeWrapper)
+    this.auth.setStoreProviderInstance(this.storeWrapper)
   }
 }
 
diff --git a/src/resources/Auth.js b/src/resources/Auth.js
new file mode 100644
index 0000000..b9e2ead
--- /dev/null
+++ b/src/resources/Auth.js
@@ -0,0 +1,78 @@
+import Personal from 'web3-eth-personal'
+
+import isRequired from '../utils/isRequired'
+import { UNABLE_TO_SIGN_TOKEN } from '../constants/error'
+
+class Auth {
+  constructor(
+    web3Wrapper = isRequired('web3Wrapper'),
+    storeProviderInstance = isRequired('storeProviderInstance')
+  ) {
+    this._Web3Wrapper = web3Wrapper
+    this._StoreProviderInstance = storeProviderInstance
+  }
+
+  /**
+   * Set store provider instance.
+   * @param {object} storeProviderInstance - instance of store provider wrapper.
+   */
+  setStoreProviderInstance = storeProviderInstance => {
+    this._StoreProviderInstance = storeProviderInstance
+  }
+
+  /**
+   * Set an auth token in the Store Provider. Call this instead of validateNewAuthToken
+   * if you have a signed token saved.
+   * @param {string} token - Hex representation of signed token.
+   */
+  setAuthToken = token => {
+    this._StoreProviderInstance.setAuthToken(token)
+  }
+
+  /**
+   * Validate a new auth token. Note if you validate a new token old signed tokens
+   * will not longer be valid regardless of their expiration time.
+   * @param {string} userAddress - Address of the user profile
+   * @returns {string} Signed token for future use.
+   */
+  getNewAuthToken = async userAddress => {
+    const unsignedToken = (await this._StoreProviderInstance.newAuthToken(
+      userAddress
+    )).unsignedToken
+
+    const signedToken = await this.signMessage(userAddress, unsignedToken)
+    // make sure token is valid
+    if (!await this.validateAuthToken(userAddress, signedToken))
+      throw new Error(UNABLE_TO_SIGN_TOKEN)
+
+    return signedToken
+  }
+
+  /**
+   * Sign a message with your private key. Uses web3 1.0 personal sign
+   * @param {string} userAddress - The address with which we want to sign the message
+   * @param {string} data - Hex encoded data to sign
+   * @returns {string} signed data
+   */
+  signMessage = (userAddress, data) => {
+    const ethPersonal = new Personal(this._Web3Wrapper.getProvider())
+    return new Promise((resolve, reject) => {
+      ethPersonal.sign(data, userAddress, (error, result) => {
+        if (error) reject(error)
+
+        resolve(result)
+      })
+    })
+  }
+
+  /**
+   * Validate an auth token.
+   * @param {string} userAddress - The address of the user.
+   * @param {string} authToken - Token to check.
+   * @returns {Promise} resolves to True if token is valid.
+   */
+  validateAuthToken = (userAddress, authToken) =>
+    this._StoreProviderInstance.isTokenValid(userAddress, authToken)
+}
+
+export default Auth
diff --git a/src/resources/Disputes.js b/src/resources/Disputes.js
index 262e1a5..19d8ebe 100644
--- a/src/resources/Disputes.js
+++ b/src/resources/Disputes.js
@@ -79,37 +79,43 @@ class Disputes {
     // There is no need to handle this event if we are not using the store
     const disputeId = event.args._disputeID.toNumber()
 
-    const contractAddress = this._ArbitratorInstance.getContractAddress()
-    const existingDispute = await this._StoreProviderInstance.getDispute(
-      contractAddress,
-      disputeId
+    const arbitratorAddress = this._ArbitratorInstance.getContractAddress()
+    // arbitrator data
+    const disputeData = await this._ArbitratorInstance.getDispute(disputeId)
+    // arbitrable contract data
+    await this._ArbitrableInstance.setContractInstance(
+      disputeData.arbitrableContractAddress
     )
 
-    // Add dispute to store if not there
-    if (_.isNull(existingDispute)) {
-      // arbitrator data
-      const disputeData = await this.getDataForDispute(disputeId, account)
-      // arbitrable contract data
-      await this._ArbitrableInstance.setContractInstance(
-        disputeData.arbitrableContractAddress
-      )
-      const arbitrableContractData = await this._ArbitrableInstance.getData()
+    const arbitrableContractData = await this._ArbitrableInstance.getData(
+      account
+    )
+    if (
+      account === arbitrableContractData.partyA ||
+      account === arbitrableContractData.partyB
+    ) {
       // timestamp
       const blockTimestamp = (await this._ArbitratorInstance.getBlock(
         event.blockNumber
       )).timestamp
 
-      const appealCreatedAt = disputeData.appealCreatedAt
+      // Check if dispute has already been stored. This can happen if there was an appeal
+      const storedDispute = this._StoreProviderInstance.getDisputeDataForUser(
+        arbitrableContractData.partyA,
+        arbitratorAddress,
+        disputeId
+      )
+      const appealCreatedAt = storedDispute.appealCreatedAt || []
       appealCreatedAt[disputeData.numberOfAppeals] = blockTimestamp * 1000
 
-      await this._StoreProviderInstance.updateDispute(
-        contractAddress,
+      await this._StoreProviderInstance.updateDisputeProfile(
+        account,
+        arbitratorAddress,
         disputeId,
         {
           contractAddress: disputeData.arbitrableContractAddress,
           partyA: arbitrableContractData.partyA,
           partyB: arbitrableContractData.partyB,
-          status: disputeData.status,
           appealCreatedAt
         }
       )
@@ -162,35 +168,32 @@ class Disputes {
     const newPeriod = await this._ArbitratorInstance.getPeriod()
     // send appeal possible notifications
     if (newPeriod === arbitratorConstants.PERIOD.APPEAL) {
-      const disputes = await this._StoreProviderInstance.getDisputesForUser(
-        account
-      )
+      const disputes = await this._StoreProviderInstance.getDisputes(account)
       const openDisputes = await this._ArbitratorInstance.getOpenDisputesForSession()
       const contractAddress = this._ArbitratorInstance.getContractAddress()
 
       await Promise.all(
-        openDisputes.map(async disputeId => {
-          if (
-            _.findIndex(
-              disputes,
-              dispute =>
-                dispute.disputeId === disputeId &&
-                dispute.arbitratorAddress === contractAddress
-            ) >= 0
-          ) {
+        openDisputes.map(async openDispute => {
+          const disputeIndex = _.findIndex(
+            disputes,
+            dispute =>
+              dispute.disputeId === openDispute.disputeId &&
+              dispute.arbitratorAddress === contractAddress
+          )
+          if (disputeIndex >= 0) {
             // get ruledAt from block timestamp
             const blockNumber = event.blockNumber
             const blockTimestamp = (await this._ArbitratorInstance.getBlock(
               blockNumber
             )).timestamp
 
-            const disputeData = await this.getDataForDispute(disputeId, account)
-            const appealRuledAt = disputeData.appealRuledAt
-            appealRuledAt[disputeData.numberOfAppeals] = blockTimestamp * 1000
+            const appealRuledAt = disputes[disputeIndex].appealRuledAt || []
+            appealRuledAt[openDispute.numberOfAppeals] = blockTimestamp * 1000
 
-            this._StoreProviderInstance.updateDispute(
+            this._StoreProviderInstance.updateDisputeProfile(
+              account,
               contractAddress,
-              disputeId,
+              openDispute.disputeId,
               {
                 appealRuledAt
               }
@@ -211,30 +214,27 @@ class Disputes {
     const newPeriod = await this._ArbitratorInstance.getPeriod()
     // send appeal possible notifications
     if (newPeriod === arbitratorConstants.PERIOD.VOTE) {
-      const disputes = await this._StoreProviderInstance.getDisputesForUser(
-        account
-      )
+      const disputes = await this._StoreProviderInstance.getDisputes(account)
       // contract data
       const openDisputes = await this._ArbitratorInstance.getOpenDisputesForSession()
       const contractAddress = this._ArbitratorInstance.getContractAddress()
       await Promise.all(
-        openDisputes.map(async disputeId => {
-          if (
-            _.findIndex(
-              disputes,
-              dispute =>
-                dispute.disputeId === disputeId &&
-                dispute.arbitratorAddress === contractAddress
-            ) >= 0
-          ) {
+        openDisputes.map(async openDispute => {
+          const disputeIndex = _.findIndex(
+            disputes,
+            dispute =>
+              dispute.disputeId === openDispute.disputeId &&
+              dispute.arbitratorAddress === contractAddress
+          )
+          if (disputeIndex >= 0) {
             const deadline = await this._ArbitratorInstance.getDeadlineForOpenDispute()
-            const disputeData = await this.getDataForDispute(disputeId, account)
-            const appealDeadlines = disputeData.appealDeadlines
-            appealDeadlines[disputeData.numberOfAppeals] = deadline
+            const appealDeadlines = disputes[disputeIndex].appealDeadlines || []
+            appealDeadlines[openDispute.numberOfAppeals] = deadline
 
-            this._StoreProviderInstance.updateDispute(
+            this._StoreProviderInstance.updateDisputeProfile(
+              account,
               contractAddress,
-              disputeId,
+              openDispute.disputeId,
               {
                 appealDeadlines
               }
@@ -281,7 +281,7 @@ class Disputes {
       arbitrableContractAddress
     )
     const [arbitrableContractData, evidence] = await Promise.all([
-      this._ArbitrableInstance.getData(),
+      this._ArbitrableInstance.getData(account),
       this._ArbitrableInstance.getEvidenceForArbitrableContract(
         arbitrableContractAddress
       )
@@ -298,15 +298,17 @@ class Disputes {
     let appealRuledAt = []
     let netPNK = 0
     try {
-      const userData = await this._StoreProviderInstance.getDisputeData(
+      const userData = await this._StoreProviderInstance.getDisputeDataForUser(
+        account,
         arbitratorAddress,
-        disputeId,
-        account
+        disputeId
       )
-      if (userData.appealDraws) appealDraws = userData.appealDraws
-      if (userData.appealCreatedAt) appealCreatedAt = userData.appealCreatedAt
-      if (userData.appealDeadlines) appealDeadlines = userData.appealDeadlines
-      if (userData.appealRuledAt) appealRuledAt = userData.appealRuledAt
+      if (userData.appealDraws) appealDraws = userData.appealDraws || []
+      if (userData.appealCreatedAt)
+        appealCreatedAt = userData.appealCreatedAt || []
+      if (userData.appealDeadlines)
+        appealDeadlines = userData.appealDeadlines || []
+      if (userData.appealRuledAt) appealRuledAt = userData.appealRuledAt || []
       if (userData.netPNK) netPNK = userData.netPNK
       // eslint-disable-next-line no-unused-vars
     } catch (err) {
diff --git a/src/resources/Notifications.js b/src/resources/Notifications.js
index 7f8b2d2..30218b3 100644
--- a/src/resources/Notifications.js
+++ b/src/resources/Notifications.js
@@ -147,7 +147,9 @@ class Notifications {
         contracts.map(async contract => {
           // load arbitrable contract
           await this._ArbitrableInstance.setContractInstance(contract.address)
-          const contractData = await this._ArbitrableInstance.getData()
+          const contractData = await this._ArbitrableInstance.getData(
+            contract.partyA
+          )
           const arbitrationCost = await this._ArbitratorInstance.getArbitrationCost(
             contractData.arbitratorExtraData
           )
@@ -295,29 +297,28 @@ class Notifications {
       const arbitratorAddress = this._ArbitratorInstance.getContractAddress()
 
       await Promise.all(
-        openDisputes.map(async disputeId => {
+        openDisputes.map(async openDispute => {
           if (
             _.findIndex(
               disputes,
               dispute =>
-                dispute.disputeId === disputeId &&
+                dispute.disputeId === openDispute.disputeId &&
                 dispute.arbitratorAddress === arbitratorAddress
             ) >= 0
           ) {
-            const dispute = await this._ArbitratorInstance.getDispute(disputeId)
             const ruling = await this._ArbitratorInstance.currentRulingForDispute(
-              disputeId,
-              dispute.numberOfAppeals
+              openDispute.disputeId,
+              openDispute.numberOfAppeals
             )
 
             const notification = await this._newNotification(
               account,
               event.transactionHash,
-              disputeId, // use disputeId instead of logIndex since it doens't have its own event
+              openDispute.disputeId, // use disputeId instead of logIndex since it doens't have its own event
               notificationConstants.TYPE.APPEAL_POSSIBLE,
               'A ruling has been made. Appeal is possible',
               {
-                disputeId: disputeId,
+                disputeId: openDispute.disputeId,
                 arbitratorAddress,
                 ruling
               }
@@ -625,7 +626,7 @@ class Notifications {
 
     // If we have store provider fetch contracts and disputes from the store.
     if (this._StoreProviderInstance) {
-      disputes = await this._StoreProviderInstance.getDisputesForUser(account)
+      disputes = await this._StoreProviderInstance.getDisputes(account)
     } else if (isJuror) {
       // We have no way to get contracts. Get disputes from current session
       // TODO make a function to get open disputes for parites
diff --git a/src/resources/index.js b/src/resources/index.js
index c3ff838..5c08d4b 100644
--- a/src/resources/index.js
+++ b/src/resources/index.js
@@ -1,4 +1,5 @@
 import Disputes from './Disputes'
 import Notifications from './Notifications'
+import Auth from './Auth'
 
-export { Disputes, Notifications }
+export { Disputes, Notifications, Auth }
diff --git a/src/utils/StoreProviderWrapper.js b/src/utils/StoreProviderWrapper.js
index 14cb501..e43acd0 100644
--- a/src/utils/StoreProviderWrapper.js
+++ b/src/utils/StoreProviderWrapper.js
@@ -11,9 +11,11 @@ class StoreProviderWrapper {
   /**
    * Create a new instance of StoreProviderWrapper.
    * @param {string} storeProviderUri - The uri of kleros store.
+   * @param {string} authToken - Signed token cooresponding to user profile address.
    */
-  constructor(storeProviderUri) {
+  constructor(storeProviderUri, authToken) {
     this._storeUri = storeProviderUri
+    this._token = authToken
     this._storeQueue = new PromiseQueue()
   }
 
@@ -25,6 +27,12 @@ class StoreProviderWrapper {
    * @returns {Promise} request promise that resolves to the HTTP response.
    */
   _makeRequest = (verb, uri, body = null) => {
+    if (verb !== 'GET' && !this._token) {
+      throw new Error(
+        'No auth token set. Cannot make writes to store. Please call setAuthToken or validateNewAuthToken.'
+      )
+    }
+
     const httpRequest = new XMLHttpRequest()
     return new Promise((resolve, reject) => {
       try {
@@ -34,6 +42,7 @@ class StoreProviderWrapper {
             'Content-Type',
             'application/json;charset=UTF-8'
           )
+          httpRequest.setRequestHeader('Authorization', this._token)
         }
         httpRequest.onreadystatechange = () => {
           if (httpRequest.readyState === 4) {
@@ -42,6 +51,10 @@ class StoreProviderWrapper {
               body = JSON.parse(httpRequest.responseText)
               // eslint-disable-next-line no-unused-vars
             } catch (err) {}
+            // auth token error
+            if (httpRequest.status === 401)
+              reject(errorConstants.INVALID_AUTH_TOKEN(body.error))
+
             resolve({
               body: body,
               status: httpRequest.status
@@ -50,7 +63,7 @@ class StoreProviderWrapper {
         }
         httpRequest.send(body)
       } catch (err) {
-        reject(err)
+        reject(errorConstants.REQUEST_FAILED(err))
       }
     })
   }
@@ -76,47 +89,70 @@ class StoreProviderWrapper {
     this._storeQueue.fetch(() => this._makeRequest('GET', uri))
 
   // **************************** //
-  // *          Read            * //
+  // *          Auth            * //
   // **************************** //
 
   /**
-   * Fetch stored user profile.
-   * @param {string} userAddress - Address of user.
-   * @returns {object} - a response object.
+   * Set the auth token for write requests.
+   * @param {string} token - Hex string of the signed data token.
    */
-  getUserProfile = async userAddress => {
-    const httpResponse = await this._makeRequest(
+  setAuthToken = token => {
+    this._token = token
+  }
+
+  /**
+   * Generate a new unsigned auth token.
+   * @param {string} userAddress - Address of the user profile.
+   * @returns {string} Hex encoded unsigned token.
+   */
+  newAuthToken = async userAddress => {
+    const newTokenResponse = await this._makeRequest(
       'GET',
-      `${this._storeUri}/${userAddress}`
+      `${this._storeUri}/${userAddress}/authToken`
     )
 
-    return httpResponse.body
+    return newTokenResponse.body
   }
 
   /**
-   * Get all stored data from a dispute. This includes data from the user profile as well
-   * as the user agnostic dispute data stored separately.
-   * @param {string} arbitratorAddress - Address of arbitrator contract.
-   * @param {number} disputeId - Index of the dispute.
-   * @param {string} userAddress - Address of user.
-   * @returns {object} - a response object.
+   * Validate auth token
+   * @param {string} userAddress - Address of user profile.
+   * @param {string} token - <optional> token to use. Sets token.
+   * @returns {bool} - True if token is valid.
    */
-  getDisputeData = async (arbitratorAddress, disputeId, userAddress) => {
-    const userProfile = await this.getUserProfile(userAddress)
-    if (!userProfile)
-      throw new Error(errorConstants.PROFILE_NOT_FOUND(userAddress))
+  isTokenValid = async (userAddress, token) => {
+    if (token) this.setAuthToken(token)
+
+    try {
+      const response = await this._makeRequest(
+        'POST',
+        `${this._storeUri}/${userAddress}/authToken/verify`,
+        JSON.stringify({})
+      )
 
-    let disputeData = _.filter(
-      userProfile.disputes,
-      o =>
-        o.arbitratorAddress === arbitratorAddress && o.disputeId === disputeId
-    )
+      return response.status === 201
+      // eslint-disable-next-line no-unused-vars
+    } catch (err) {
+      return false
+    }
+  }
 
+  // **************************** //
+  // *          Read            * //
+  // **************************** //
+
+  /**
+   * Fetch stored user profile.
+   * @param {string} userAddress - Address of user.
+   * @returns {object} - a response object.
+   */
+  getUserProfile = async userAddress => {
     const httpResponse = await this._makeRequest(
       'GET',
-      `${this._storeUri}/arbitrators/${arbitratorAddress}/disputes/${disputeId}`
+      `${this._storeUri}/${userAddress}`
     )
-    return Object.assign({}, httpResponse.body, disputeData[0])
+
+    return httpResponse.body
   }
 
   /**
@@ -138,32 +174,35 @@ class StoreProviderWrapper {
     return contract[0]
   }
 
+  /**
+   * Get all stored data for a dispute. Must exist in User Profile.
+   * @param {string} userAddress - Address of user.
+   * @param {string} arbitratorAddress - Address of arbitrator contract.
+   * @param {number} disputeId - Index of the dispute.
+   * @returns {object} - a response object.
+   */
+  getDisputeDataForUser = async (userAddress, arbitratorAddress, disputeId) => {
+    const userProfile = await this.getUserProfile(userAddress)
+    if (!userProfile)
+      throw new Error(errorConstants.PROFILE_NOT_FOUND(userAddress))
+
+    return _.filter(
+      userProfile.disputes,
+      o =>
+        o.arbitratorAddress === arbitratorAddress && o.disputeId === disputeId
+    )[0]
+  }
+
   /**
    * Fetch stored disputes for a user.
    * @param {string} userAddress - Address of user.
    * @returns {object} - a response object.
    */
-  getDisputesForUser = async userAddress => {
+  getDisputes = async userAddress => {
     const userProfile = await this.getUserProfile(userAddress)
     if (!userProfile) return []
 
-    const disputes = []
-    for (let i = 0; i < userProfile.disputes.length; i++) {
-      const dispute = userProfile.disputes[i]
-      if (!dispute.arbitratorAddress || _.isNil(dispute.disputeId)) continue
-      // fetch dispute data
-      const httpResponse = await this._makeRequest(
-        'GET',
-        `${this._storeUri}/arbitrators/${dispute.arbitratorAddress}/disputes/${
-          dispute.disputeId
-        }`
-      )
-      if (httpResponse.status === 200) {
-        disputes.push(Object.assign({}, httpResponse.body, dispute))
-      }
-    }
-
-    return disputes
+    return userProfile.disputes
   }
 
   /**
@@ -177,21 +216,6 @@ class StoreProviderWrapper {
     return userProfile.lastBlock || 0
   }
 
-  /**
-   * Fetch user agnostic data stored on a dispute
-   * @param {string} arbitratorAddress - The address of the arbitrator contract.
-   * @param {number} disputeId - The index of the dispute.
-   * @returns {object} - a response object.
-   */
-  getDispute = async (arbitratorAddress, disputeId) => {
-    const httpResponse = await this._makeRequest(
-      'GET',
-      `${this._storeUri}/arbitrators/${arbitratorAddress}/disputes/${disputeId}`
-    )
-
-    return httpResponse.body
-  }
-
   // **************************** //
   // *          Write           * //
   // **************************** //
@@ -265,7 +289,7 @@ class StoreProviderWrapper {
       `${this._storeUri}/${userAddress}/contracts/${contractAddress}`
     )
 
-    if (httpResponse.status !== 200) {
+    if (httpResponse.status !== 201) {
       throw new Error(errorConstants.REQUEST_FAILED(httpResponse.error))
     }
 
@@ -356,33 +380,6 @@ class StoreProviderWrapper {
     )
   }
 
-  /**
-   * Update the user agnostic data on a dispute.
-   * @param {string} arbitratorAddress - The address of the arbitrator contract.
-   * @param {number} disputeId - The index of the dispute.
-   * @param {object} params - The data we are updating.
-   * @returns {Promise} The resulting dispute data.
-   */
-  updateDispute = async (arbitratorAddress, disputeId, params) => {
-    const getBodyFn = async () => {
-      const currentDispute =
-        (await this.getDispute(arbitratorAddress, disputeId)) || {}
-      delete currentDispute._id
-      delete currentDispute.updated_at
-
-      params.arbitratorAddress = arbitratorAddress
-      params.disputeId = disputeId
-
-      return JSON.stringify({ ...currentDispute, ...params })
-    }
-
-    return this.queueWriteRequest(
-      getBodyFn,
-      'POST',
-      `${this._storeUri}/arbitrators/${arbitratorAddress}/disputes/${disputeId}`
-    )
-  }
-
   /**
    * Create a new notification in the store.
    * @param {string} userAddress - The address of the user.
diff --git a/src/utils/Web3Wrapper.js b/src/utils/Web3Wrapper.js
index 00aa6a1..988d228 100644
--- a/src/utils/Web3Wrapper.js
+++ b/src/utils/Web3Wrapper.js
@@ -32,6 +32,15 @@ class Web3Wrapper {
 
   blockNumber = () => this._web3.eth.blockNumber
 
+  sign = (userAddress, data) =>
+    new Promise((resolve, reject) => {
+      this._web3.eth.sign(userAddress, data, (error, result) => {
+        if (error) reject(error)
+
+        resolve(result)
+      })
+    })
+
   getBlock = blockNumber =>
     new Promise((resolve, reject) => {
       this._web3.eth.getBlock(blockNumber, (error, result) => {
diff --git a/tests/integration/storeAuth.test.js b/tests/integration/storeAuth.test.js
new file mode 100644
index 0000000..79bc8da
--- /dev/null
+++ b/tests/integration/storeAuth.test.js
@@ -0,0 +1,71 @@
+import Web3 from 'web3'
+import sigUtil from 'eth-sig-util'
+
+import Kleros from '../../src/kleros'
+import * as ethConstants from '../../src/constants/eth'
+
+describe('Auth', () => {
+  let web3
+  let loggedInUserAddress
+
+  beforeAll(async () => {
+    const provider = await new Web3.providers.HttpProvider(
+      ethConstants.LOCALHOST_ETH_PROVIDER
+    )
+    web3 = await new Web3(provider)
+
+    loggedInUserAddress = web3.eth.accounts[0]
+  })
+
+  it('can sign auth token', async () => {
+    const mockStoreUri = ''
+    const ethProvider = new Web3.providers.HttpProvider(
+      ethConstants.LOCALHOST_ETH_PROVIDER
+    )
+    const mockArbitrator = '0x0'
+    const mockArbitrable = '0x1'
+
+    const klerosInstance = new Kleros(
+      ethProvider,
+      mockStoreUri,
+      mockArbitrator,
+      mockArbitrable
+    )
+
+    const mockToken =
+      '0x7b2276657273696f6e223a312c2265787069726174696f6e223a313532353830303831313932307d'
+    const mockStoreProvider = {
+      newAuthToken: () => ({ unsignedToken: mockToken }),
+      setAuthToken: () => true,
+      isTokenValid: () => true
+    }
+    // set new store provider
+    klerosInstance.auth.setStoreProviderInstance(mockStoreProvider)
+
+    // FIXME testrpc/ganache clients don't support personal_sign yet. Remove this mock once they do.
+    klerosInstance.auth.signMessage = (userAddress, data) =>
+      new Promise((resolve, reject) => {
+        web3.eth.sign(userAddress, data, (error, result) => {
+          if (error) reject(error)
+
+          resolve(result)
+        })
+      })
+
+    const signedToken = await klerosInstance.auth.getNewAuthToken(
+      loggedInUserAddress
+    )
+
+    expect(signedToken).toBeTruthy()
+
+    // validate token
+    const msgParams = {
+      data: mockToken,
+      sig: signedToken
+    }
+
+    const authorizedUser = await sigUtil.recoverPersonalSignature(msgParams)
+
+    expect(authorizedUser).toEqual(loggedInUserAddress)
+  })
+})
diff --git a/tests/unit/contracts/abstractions/Arbitrator.test.js b/tests/unit/contracts/abstractions/Arbitrator.test.js
index 04ba45a..37efebd 100644
--- a/tests/unit/contracts/abstractions/Arbitrator.test.js
+++ b/tests/unit/contracts/abstractions/Arbitrator.test.js
@@ -19,7 +19,7 @@ describe('Arbitrator', () => {
         disputeId: '1'
       }
       const mockStoreProvider = {
-        getDisputesForUser: mockGetDisputesForUser.mockReturnValue(
+        getDisputes: mockGetDisputesForUser.mockReturnValue(
           _asyncMockResponse([mockDispute])
         ),
         setUpUserProfile: mockShouldNotCall
@@ -51,7 +51,7 @@ describe('Arbitrator', () => {
         disputeId: '1'
       }
       const mockStoreProvider = {
-        getDisputesForUser: mockGetDisputesForUser.mockReturnValue(
+        getDisputes: mockGetDisputesForUser.mockReturnValue(
           _asyncMockResponse([mockDispute])
         ),
         setUpUserProfile: mockSetUpUserProfile.mockReturnValue(
@@ -91,7 +91,7 @@ describe('Arbitrator', () => {
         appealDraws: [1]
       }
       const mockStoreProvider = {
-        getDisputesForUser: mockGetDisputesForUser.mockReturnValue(
+        getDisputes: mockGetDisputesForUser.mockReturnValue(
           _asyncMockResponse([mockDispute])
         ),
         setUpUserProfile: mockSetUpUserProfile.mockReturnValue(
diff --git a/tests/unit/resources/Disputes.test.js b/tests/unit/resources/Disputes.test.js
index 0013ca2..7ef7e78 100644
--- a/tests/unit/resources/Disputes.test.js
+++ b/tests/unit/resources/Disputes.test.js
@@ -178,7 +178,7 @@ describe('Disputes', () => {
       }
       const mockStoreProvider = {
         getContractByAddress: jest.fn().mockReturnValue(mockContract),
-        getDisputeData: jest.fn().mockReturnValue(mockUserData)
+        getDisputeDataForUser: jest.fn().mockReturnValue(mockUserData)
       }
       disputesInstance.setStoreProviderInstance(mockStoreProvider)
 
@@ -293,7 +293,7 @@ describe('Disputes', () => {
       }
       const mockStoreProvider = {
         getContractByAddress: jest.fn().mockReturnValue(mockContract),
-        getDisputeData: jest.fn().mockReturnValue(mockUserData)
+        getDisputeDataForUser: jest.fn().mockReturnValue(mockUserData)
       }
       disputesInstance.setStoreProviderInstance(mockStoreProvider)
 
@@ -410,7 +410,7 @@ describe('Disputes', () => {
       }
       const mockStoreProvider = {
         getContractByAddress: jest.fn().mockReturnValue(mockContract),
-        getDisputeData: jest.fn().mockReturnValue(mockUserData)
+        getDisputeDataForUser: jest.fn().mockReturnValue(mockUserData)
       }
       disputesInstance.setStoreProviderInstance(mockStoreProvider)
 
diff --git a/yarn.lock b/yarn.lock
index d970577..a50f7f4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -232,6 +232,13 @@ abbrev@1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
 
+accepts@~1.3.5:
+  version "1.3.5"
+  resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.5.tgz#eb777df6011723a3b14e8a72c0805c8e86746bd2"
+  dependencies:
+    mime-types "~2.1.18"
+    negotiator "0.6.1"
+
 acorn-dynamic-import@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-3.0.0.tgz#901ceee4c7faaef7e07ad2a47e890675da50a278"
@@ -342,6 +349,10 @@ any-observable@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/any-observable/-/any-observable-0.2.0.tgz#c67870058003579009083f54ac0abafb5c33d242"
 
+any-promise@1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/any-promise/-/any-promise-1.3.0.tgz#abc6afeedcea52e809cdc0376aed3ce39635d17f"
+
 anymatch@^1.3.0:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-1.3.2.tgz#553dcb8f91e3c889845dfdba34c77721b90b9d7a"
@@ -417,6 +428,10 @@ array-find-index@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/array-find-index/-/array-find-index-1.0.2.tgz#df010aa1287e164bbda6f9723b0a96a1ec4187a1"
 
+array-flatten@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/array-flatten/-/array-flatten-1.1.1.tgz#9a5f699051b1e7073328f2a008968b64ea2955d2"
+
 array-ify@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/array-ify/-/array-ify-1.0.0.tgz#9e528762b4a9066ad163a6962a364418e9626ece"
@@ -1343,6 +1358,16 @@ binaryextensions@2:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/binaryextensions/-/binaryextensions-2.1.1.tgz#3209a51ca4a4ad541a3b8d3d6a6d5b83a2485935"
 
+bindings@^1.2.1:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.3.0.tgz#b346f6ecf6a95f5a815c5839fc7cdb22502f1ed7"
+
+bip66@^1.1.3:
+  version "1.1.5"
+  resolved "https://registry.yarnpkg.com/bip66/-/bip66-1.1.5.tgz#01fa8748785ca70955d5011217d1b3139969ca22"
+  dependencies:
+    safe-buffer "^5.0.1"
+
 block-stream@*:
   version "0.0.9"
   resolved "https://registry.yarnpkg.com/block-stream/-/block-stream-0.0.9.tgz#13ebfe778a03205cfe03751481ebb4b3300c126a"
@@ -1361,10 +1386,25 @@ bn.js@4.11.6:
   version "4.11.6"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.6.tgz#53344adb14617a13f6e8dd2ce28905d1c0ba3215"
 
-bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.4.0:
+bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.10.0, bn.js@^4.11.0, bn.js@^4.11.3, bn.js@^4.11.6, bn.js@^4.4.0:
   version "4.11.8"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
 
+body-parser@1.18.2, body-parser@^1.16.0:
+  version "1.18.2"
+  resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.18.2.tgz#87678a19d84b47d859b83199bd59bce222b10454"
+  dependencies:
+    bytes "3.0.0"
+    content-type "~1.0.4"
+    debug "2.6.9"
+    depd "~1.1.1"
+    http-errors "~1.6.2"
+    iconv-lite "0.4.19"
+    on-finished "~2.3.0"
+    qs "6.5.1"
+    raw-body "2.3.2"
+    type-is "~1.6.15"
+
 boolbase@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/boolbase/-/boolbase-1.0.0.tgz#68dff5fbe60c51eb37725ea9e3ed310dcc1e776e"
@@ -1444,6 +1484,17 @@ browserify-aes@^1.0.0, browserify-aes@^1.0.4:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
 
+browserify-aes@^1.0.6:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/browserify-aes/-/browserify-aes-1.2.0.tgz#326734642f403dabc3003209853bb70ad428ef48"
+  dependencies:
+    buffer-xor "^1.0.3"
+    cipher-base "^1.0.0"
+    create-hash "^1.1.0"
+    evp_bytestokey "^1.0.3"
+    inherits "^2.0.1"
+    safe-buffer "^5.0.1"
+
 browserify-cipher@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/browserify-cipher/-/browserify-cipher-1.0.0.tgz#9988244874bf5ed4e28da95666dcd66ac8fc363a"
@@ -1467,6 +1518,12 @@ browserify-rsa@^4.0.0:
     bn.js "^4.1.0"
     randombytes "^2.0.1"
 
+browserify-sha3@^0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/browserify-sha3/-/browserify-sha3-0.0.1.tgz#3ff34a3006ef15c0fb3567e541b91a2340123d11"
+  dependencies:
+    js-sha3 "^0.3.1"
+
 browserify-sign@^4.0.0:
   version "4.0.4"
   resolved "https://registry.yarnpkg.com/browserify-sign/-/browserify-sign-4.0.4.tgz#aa4eb68e5d7b658baa6bf6a57e630cbd7a93d298"
@@ -1505,6 +1562,10 @@ bser@^2.0.0:
   dependencies:
     node-int64 "^0.4.0"
 
+buffer-to-arraybuffer@^0.0.5:
+  version "0.0.5"
+  resolved "https://registry.yarnpkg.com/buffer-to-arraybuffer/-/buffer-to-arraybuffer-0.0.5.tgz#6064a40fa76eb43c723aba9ef8f6e1216d10511a"
+
 buffer-xor@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/buffer-xor/-/buffer-xor-1.0.3.tgz#26e61ed1422fb70dd42e6e36729ed51d855fe8d9"
@@ -1525,6 +1586,10 @@ builtin-status-codes@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/builtin-status-codes/-/builtin-status-codes-3.0.0.tgz#85982878e21b98e1c66425e03d0174788f569ee8"
 
+bytes@3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.0.0.tgz#d32815404d689699f85a4ea4fa8755dd13a96048"
+
 cacache@^10.0.1:
   version "10.0.4"
   resolved "https://registry.yarnpkg.com/cacache/-/cacache-10.0.4.tgz#6452367999eff9d4188aefd9a14e9d7c6a263460"
@@ -1979,10 +2044,18 @@ contains-path@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/contains-path/-/contains-path-0.1.0.tgz#fe8cf184ff6670b6baef01a9d4861a5cbec4120a"
 
+content-disposition@0.5.2:
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.2.tgz#0cf68bb9ddf5f2be7961c3a85178cb85dba78cb4"
+
 content-type-parser@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/content-type-parser/-/content-type-parser-1.0.2.tgz#caabe80623e63638b2502fd4c7f12ff4ce2352e7"
 
+content-type@~1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/content-type/-/content-type-1.0.4.tgz#e138cc75e040c727b1966fe5e5f8c9aee256fe3b"
+
 conventional-changelog-angular@^1.3.3, conventional-changelog-angular@^1.6.6:
   version "1.6.6"
   resolved "https://registry.yarnpkg.com/conventional-changelog-angular/-/conventional-changelog-angular-1.6.6.tgz#b27f2b315c16d0a1f23eb181309d0e6a4698ea0f"
@@ -2131,6 +2204,14 @@ convert-source-map@^1.4.0, convert-source-map@^1.5.0:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.5.1.tgz#b8278097b9bc229365de5c62cf5fcaed8b5599e5"
 
+cookie-signature@1.0.6:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/cookie-signature/-/cookie-signature-1.0.6.tgz#e303a882b342cc3ee8ca513a79999734dab3ae2c"
+
+cookie@0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.3.1.tgz#e7e0a1f9ef43b4c8ba925c5c5a96e806d16873bb"
+
 copy-concurrently@^1.0.0:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/copy-concurrently/-/copy-concurrently-1.0.5.tgz#92297398cae34937fcafd6ec8139c18051f0b5e0"
@@ -2158,6 +2239,13 @@ core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
 
+cors@^2.8.1:
+  version "2.8.4"
+  resolved "https://registry.yarnpkg.com/cors/-/cors-2.8.4.tgz#2bd381f2eb201020105cd50ea59da63090694686"
+  dependencies:
+    object-assign "^4"
+    vary "^1"
+
 cosmiconfig@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-3.1.0.tgz#640a94bf9847f321800403cd273af60665c73397"
@@ -2354,7 +2442,7 @@ dateformat@^3.0.0:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/dateformat/-/dateformat-3.0.3.tgz#a6e37499a4d9a9cf85ef5872044d62901c9889ae"
 
-debug@^2.0.0, debug@^2.1.0, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8, debug@^2.6.9:
+debug@2.6.9, debug@^2.0.0, debug@^2.1.0, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8, debug@^2.6.9:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   dependencies:
@@ -2381,7 +2469,7 @@ decode-uri-component@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
 
-decompress-response@^3.2.0:
+decompress-response@^3.2.0, decompress-response@^3.3.0:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/decompress-response/-/decompress-response-3.3.0.tgz#80a4dd323748384bfa248083622aedec982adff3"
   dependencies:
@@ -2455,6 +2543,14 @@ delegates@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
 
+depd@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.1.tgz#5783b4e1c459f06fa5ca27f991f3d06e7a310359"
+
+depd@~1.1.1, depd@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.2.tgz#9bcd52e14c097763e749b274c4346ed2e560b5a9"
+
 des.js@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/des.js/-/des.js-1.0.0.tgz#c074d2e2aa6a8a9a07dbd61f9a15c2cd83ec8ecc"
@@ -2462,6 +2558,10 @@ des.js@^1.0.0:
     inherits "^2.0.1"
     minimalistic-assert "^1.0.0"
 
+destroy@~1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/destroy/-/destroy-1.0.4.tgz#978857442c44749e4206613e37946205826abd80"
+
 detect-conflict@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/detect-conflict/-/detect-conflict-1.0.1.tgz#088657a66a961c05019db7c4230883b1c6b4176e"
@@ -2608,6 +2708,14 @@ dotgitignore@^1.0.3:
     find-up "^2.1.0"
     minimatch "^3.0.4"
 
+drbg.js@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/drbg.js/-/drbg.js-1.0.1.tgz#3e36b6c42b37043823cdbc332d58f31e2445480b"
+  dependencies:
+    browserify-aes "^1.0.6"
+    create-hash "^1.1.2"
+    create-hmac "^1.1.4"
+
 duplexer3@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/duplexer3/-/duplexer3-0.1.4.tgz#ee01dd1cac0ed3cbc7fdbea37dc0a8f1ce002ce2"
@@ -2631,6 +2739,10 @@ editions@^1.3.3:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/editions/-/editions-1.3.4.tgz#3662cb592347c3168eb8e498a0ff73271d67f50b"
 
+ee-first@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
+
 ejs@^2.3.1:
   version "2.5.7"
   resolved "https://registry.yarnpkg.com/ejs/-/ejs-2.5.7.tgz#cc872c168880ae3c7189762fd5ffc00896c9518a"
@@ -2643,7 +2755,7 @@ elegant-spinner@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/elegant-spinner/-/elegant-spinner-1.0.1.tgz#db043521c95d7e303fd8f345bedc3349cfb0729e"
 
-elliptic@^6.0.0:
+elliptic@^6.0.0, elliptic@^6.2.3, elliptic@^6.4.0:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.4.0.tgz#cac9af8762c85836187003c8dfe193e5e2eae5df"
   dependencies:
@@ -2663,6 +2775,10 @@ emojis-list@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/emojis-list/-/emojis-list-2.1.0.tgz#4daa4d9db00f9819880c79fa457ae5b09a1fd389"
 
+encodeurl@~1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
+
 encoding@^0.1.11:
   version "0.1.12"
   resolved "https://registry.yarnpkg.com/encoding/-/encoding-0.1.12.tgz#538b66f3ee62cd1ab51ec323829d1f9480c74beb"
@@ -2737,7 +2853,7 @@ es-to-primitive@^1.1.1:
     is-date-object "^1.0.1"
     is-symbol "^1.0.1"
 
-escape-html@1.0.3:
+escape-html@1.0.3, escape-html@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
 
@@ -3053,12 +3169,54 @@ esutils@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
 
+etag@~1.8.1:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
+
 eth-contract-class@0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/eth-contract-class/-/eth-contract-class-0.0.6.tgz#398b8952149cc747cb959fa8b5d480288c7a8bce"
   dependencies:
     web3-core-promievent "^1.0.0-beta.21"
 
+eth-lib@0.1.27:
+  version "0.1.27"
+  resolved "https://registry.yarnpkg.com/eth-lib/-/eth-lib-0.1.27.tgz#f0b0fd144f865d2d6bf8257a40004f2e75ca1dd6"
+  dependencies:
+    bn.js "^4.11.6"
+    elliptic "^6.4.0"
+    keccakjs "^0.2.1"
+    nano-json-stream-parser "^0.1.2"
+    servify "^0.1.12"
+    ws "^3.0.0"
+    xhr-request-promise "^0.1.2"
+
+eth-sig-util@^1.4.2:
+  version "1.4.2"
+  resolved "https://registry.yarnpkg.com/eth-sig-util/-/eth-sig-util-1.4.2.tgz#8d958202c7edbaae839707fba6f09ff327606210"
+  dependencies:
+    ethereumjs-abi "git+https://github.com/ethereumjs/ethereumjs-abi.git"
+    ethereumjs-util "^5.1.1"
+
+"ethereumjs-abi@git+https://github.com/ethereumjs/ethereumjs-abi.git":
+  version "0.6.5"
+  resolved "git+https://github.com/ethereumjs/ethereumjs-abi.git#4ea2fdfed09e8f99117d9362d17c6b01b64a2bcf"
+  dependencies:
+    bn.js "^4.10.0"
+    ethereumjs-util "^5.0.0"
+
+ethereumjs-util@^5.0.0, ethereumjs-util@^5.1.1:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz#3e0c0d1741471acf1036052d048623dee54ad642"
+  dependencies:
+    bn.js "^4.11.0"
+    create-hash "^1.1.2"
+    ethjs-util "^0.1.3"
+    keccak "^1.0.2"
+    rlp "^2.0.0"
+    safe-buffer "^5.1.1"
+    secp256k1 "^3.0.1"
+
 ethjs-abi@0.1.8:
   version "0.1.8"
   resolved "https://registry.yarnpkg.com/ethjs-abi/-/ethjs-abi-0.1.8.tgz#cd288583ed628cdfadaf8adefa3ba1dbcbca6c18"
@@ -3075,6 +3233,20 @@ ethjs-abi@^0.2.1:
     js-sha3 "0.5.5"
     number-to-bn "1.7.0"
 
+ethjs-unit@0.1.6:
+  version "0.1.6"
+  resolved "https://registry.yarnpkg.com/ethjs-unit/-/ethjs-unit-0.1.6.tgz#c665921e476e87bce2a9d588a6fe0405b2c41699"
+  dependencies:
+    bn.js "4.11.6"
+    number-to-bn "1.7.0"
+
+ethjs-util@^0.1.3:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/ethjs-util/-/ethjs-util-0.1.4.tgz#1c8b6879257444ef4d3f3fbbac2ded12cd997d93"
+  dependencies:
+    is-hex-prefixed "1.0.0"
+    strip-hex-prefix "1.0.0"
+
 eventemitter3@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-1.1.1.tgz#47786bdaa087caf7b1b75e73abc5c7d540158cd0"
@@ -3181,6 +3353,41 @@ expect@^22.4.0:
     jest-message-util "^22.4.0"
     jest-regex-util "^22.1.0"
 
+express@^4.14.0:
+  version "4.16.3"
+  resolved "https://registry.yarnpkg.com/express/-/express-4.16.3.tgz#6af8a502350db3246ecc4becf6b5a34d22f7ed53"
+  dependencies:
+    accepts "~1.3.5"
+    array-flatten "1.1.1"
+    body-parser "1.18.2"
+    content-disposition "0.5.2"
+    content-type "~1.0.4"
+    cookie "0.3.1"
+    cookie-signature "1.0.6"
+    debug "2.6.9"
+    depd "~1.1.2"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    etag "~1.8.1"
+    finalhandler "1.1.1"
+    fresh "0.5.2"
+    merge-descriptors "1.0.1"
+    methods "~1.1.2"
+    on-finished "~2.3.0"
+    parseurl "~1.3.2"
+    path-to-regexp "0.1.7"
+    proxy-addr "~2.0.3"
+    qs "6.5.1"
+    range-parser "~1.2.0"
+    safe-buffer "5.1.1"
+    send "0.16.2"
+    serve-static "1.13.2"
+    setprototypeof "1.1.0"
+    statuses "~1.4.0"
+    type-is "~1.6.16"
+    utils-merge "1.0.1"
+    vary "~1.1.2"
+
 extend-shallow@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-2.0.1.tgz#51af7d614ad9a9f610ea1bafbb989d6b1c56890f"
@@ -3325,6 +3532,18 @@ fill-range@^4.0.0:
     repeat-string "^1.6.1"
     to-regex-range "^2.1.0"
 
+finalhandler@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/finalhandler/-/finalhandler-1.1.1.tgz#eebf4ed840079c83f4249038c9d703008301b105"
+  dependencies:
+    debug "2.6.9"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    on-finished "~2.3.0"
+    parseurl "~1.3.2"
+    statuses "~1.4.0"
+    unpipe "~1.0.0"
+
 find-cache-dir@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/find-cache-dir/-/find-cache-dir-1.0.0.tgz#9288e3e9e3cc3748717d39eade17cf71fc30ee6f"
@@ -3396,6 +3615,12 @@ flush-write-stream@^1.0.0:
     inherits "^2.0.1"
     readable-stream "^2.0.4"
 
+for-each@^0.3.2:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/for-each/-/for-each-0.3.2.tgz#2c40450b9348e97f281322593ba96704b9abd4d4"
+  dependencies:
+    is-function "~1.0.0"
+
 for-in@^1.0.1, for-in@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
@@ -3430,12 +3655,20 @@ form-data@~2.3.1:
     combined-stream "1.0.6"
     mime-types "^2.1.12"
 
+forwarded@~0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.1.2.tgz#98c23dab1175657b8c0573e8ceccd91b0ff18c84"
+
 fragment-cache@^0.2.1:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/fragment-cache/-/fragment-cache-0.2.1.tgz#4290fad27f13e89be7f33799c6bc5a0abfff0d19"
   dependencies:
     map-cache "^0.2.2"
 
+fresh@0.5.2:
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/fresh/-/fresh-0.5.2.tgz#3d8cadd90d976569fa835ab1f8e4b23a105605a7"
+
 from2@^2.1.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/from2/-/from2-2.3.0.tgz#8bfb5502bde4a4d36cfdeea007fcca21d7e382af"
@@ -3705,7 +3938,7 @@ global-prefix@^1.0.1:
     is-windows "^1.0.1"
     which "^1.2.14"
 
-global@^4.3.2:
+global@^4.3.2, global@~4.3.0:
   version "4.3.2"
   resolved "https://registry.yarnpkg.com/global/-/global-4.3.2.tgz#e76989268a6c74c38908b1305b10fc0e394e9d0f"
   dependencies:
@@ -4009,6 +4242,28 @@ htmlparser2@~3.8.1:
     entities "1.0"
     readable-stream "1.1"
 
+http-errors@1.6.2:
+  version "1.6.2"
+  resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.6.2.tgz#0a002cc85707192a7e7946ceedc11155f60ec736"
+  dependencies:
+    depd "1.1.1"
+    inherits "2.0.3"
+    setprototypeof "1.0.3"
+    statuses ">= 1.3.1 < 2"
+
+http-errors@~1.6.2:
+  version "1.6.3"
+  resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.6.3.tgz#8b55680bb4be283a0b5bf4ea2e38580be1d9320d"
+  dependencies:
+    depd "~1.1.2"
+    inherits "2.0.3"
+    setprototypeof "1.1.0"
+    statuses ">= 1.4.0 < 2"
+
+http-https@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/http-https/-/http-https-1.0.0.tgz#2f908dd5f1db4068c058cd6e6d4ce392c913389b"
+
 http-signature@~1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-1.1.1.tgz#df72e267066cd0ac67fb76adf8e134a8fbcf91bf"
@@ -4104,7 +4359,7 @@ inflight@^1.0.4:
     once "^1.3.0"
     wrappy "1"
 
-inherits@2, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.0, inherits@~2.0.1, inherits@~2.0.3:
+inherits@2, inherits@2.0.3, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.0, inherits@~2.0.1, inherits@~2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
 
@@ -4185,6 +4440,10 @@ invert-kv@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-1.0.0.tgz#104a8e4aaca6d3d8cd157a8ef8bfab2d7a3ffdb6"
 
+ipaddr.js@1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.6.0.tgz#e3fa357b773da619f26e95f049d055c72796f86b"
+
 is-accessor-descriptor@^0.1.6:
   version "0.1.6"
   resolved "https://registry.yarnpkg.com/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz#a9e12cb3ae8d876727eeef3843f8a0897b5c98d6"
@@ -4326,6 +4585,10 @@ is-fullwidth-code-point@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz#a3b30a5c4f199183167aaab93beefae3ddfb654f"
 
+is-function@^1.0.1, is-function@~1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-function/-/is-function-1.0.1.tgz#12cfb98b65b57dd3d193a3121f5f6e2f437602b5"
+
 is-generator-fn@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-generator-fn/-/is-generator-fn-1.0.0.tgz#969d49e1bb3329f6bb7f09089be26578b2ddd46a"
@@ -4470,7 +4733,7 @@ is-text-path@^1.0.0:
   dependencies:
     text-extensions "^1.0.0"
 
-is-typedarray@~1.0.0:
+is-typedarray@^1.0.0, is-typedarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-typedarray/-/is-typedarray-1.0.0.tgz#e479c80858df0c1b11ddda6940f96011fcda4a9a"
 
@@ -4889,6 +5152,10 @@ js-sha3@0.5.5:
   version "0.5.5"
   resolved "https://registry.yarnpkg.com/js-sha3/-/js-sha3-0.5.5.tgz#baf0c0e8c54ad5903447df96ade7a4a1bca79a4a"
 
+js-sha3@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/js-sha3/-/js-sha3-0.3.1.tgz#86122802142f0828502a0d1dee1d95e253bb0243"
+
 js-tokens@^3.0.0, js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
@@ -5046,6 +5313,22 @@ jsx-ast-utils@^2.0.0, jsx-ast-utils@^2.0.1:
   dependencies:
     array-includes "^3.0.3"
 
+keccak@^1.0.2:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/keccak/-/keccak-1.4.0.tgz#572f8a6dbee8e7b3aa421550f9e6408ca2186f80"
+  dependencies:
+    bindings "^1.2.1"
+    inherits "^2.0.3"
+    nan "^2.2.1"
+    safe-buffer "^5.1.0"
+
+keccakjs@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/keccakjs/-/keccakjs-0.2.1.tgz#1d633af907ef305bbf9f2fa616d56c44561dfa4d"
+  dependencies:
+    browserify-sha3 "^0.0.1"
+    sha3 "^1.1.0"
+
 kind-of@^3.0.2, kind-of@^3.0.3, kind-of@^3.2.0:
   version "3.2.2"
   resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-3.2.2.tgz#31ea21a734bab9bbb0f32466d893aea51e4a3c64"
@@ -5561,6 +5844,10 @@ mdast-util-compact@^1.0.0:
     unist-util-modify-children "^1.0.0"
     unist-util-visit "^1.1.0"
 
+media-typer@0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
+
 mem-fs-editor@^3.0.0:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/mem-fs-editor/-/mem-fs-editor-3.0.2.tgz#dd0a6eaf2bb8a6b37740067aa549eb530105af9f"
@@ -5626,6 +5913,10 @@ meow@^4.0.0:
     redent "^2.0.0"
     trim-newlines "^2.0.0"
 
+merge-descriptors@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
+
 merge-stream@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/merge-stream/-/merge-stream-1.0.1.tgz#4041202d508a342ba00174008df0c251b8c135e1"
@@ -5636,6 +5927,10 @@ merge@^1.1.3, merge@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.0.tgz#7531e39d4949c281a66b8c5a6e0265e8b05894da"
 
+methods@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
+
 micromatch@^2.1.5, micromatch@^2.3.11, micromatch@^2.3.7:
   version "2.3.11"
   resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-2.3.11.tgz#86677c97d1720b363431d04d0d15293bd38c1565"
@@ -5683,12 +5978,16 @@ mime-db@~1.33.0:
   version "1.33.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.33.0.tgz#a3492050a5cb9b63450541e39d9788d2272783db"
 
-mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.7:
+mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.18, mime-types@~2.1.7:
   version "2.1.18"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.18.tgz#6f323f60a83d11146f831ff11fd66e2fe5503bb8"
   dependencies:
     mime-db "~1.33.0"
 
+mime@1.4.1:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-1.4.1.tgz#121f9ebc49e3766f311a76e1fa1c8003c4b03aa6"
+
 mimic-fn@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
@@ -5818,10 +6117,18 @@ mute-stream@0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
 
+nan@2.10.0, nan@^2.2.1, nan@^2.3.3:
+  version "2.10.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.10.0.tgz#96d0cd610ebd58d4b4de9cc0c6828cda99c7548f"
+
 nan@^2.3.0:
   version "2.9.2"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.9.2.tgz#f564d75f5f8f36a6d9456cca7a6c4fe488ab7866"
 
+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"
+
 nanomatch@^1.2.9:
   version "1.2.9"
   resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.9.tgz#879f7150cb2dab7a471259066c104eee6e0fa7c2"
@@ -5843,6 +6150,10 @@ natural-compare@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
 
+negotiator@0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
+
 neo-async@^2.5.0:
   version "2.5.0"
   resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.5.0.tgz#76b1c823130cca26acfbaccc8fbaf0a2fa33b18f"
@@ -6026,7 +6337,7 @@ oauth-sign@~0.8.1, oauth-sign@~0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.8.2.tgz#46a6ab7f0aead8deae9ec0565780b7d4efeb9d43"
 
-object-assign@^4.0.1, object-assign@^4.1.0, object-assign@^4.1.1:
+object-assign@^4, object-assign@^4.0.1, object-assign@^4.1.0, object-assign@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
 
@@ -6068,6 +6379,18 @@ object.pick@^1.3.0:
   dependencies:
     isobject "^3.0.1"
 
+oboe@2.1.3:
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/oboe/-/oboe-2.1.3.tgz#2b4865dbd46be81225713f4e9bfe4bcf4f680a4f"
+  dependencies:
+    http-https "^1.0.0"
+
+on-finished@~2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/on-finished/-/on-finished-2.3.0.tgz#20f1336481b083cd75337992a16971aa2d906947"
+  dependencies:
+    ee-first "1.1.1"
+
 once@^1.3.0, once@^1.3.1, once@^1.3.3, once@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
@@ -6250,6 +6573,13 @@ parse-glob@^3.0.4:
     is-extglob "^1.0.0"
     is-glob "^2.0.0"
 
+parse-headers@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/parse-headers/-/parse-headers-2.0.1.tgz#6ae83a7aa25a9d9b700acc28698cd1f1ed7e9536"
+  dependencies:
+    for-each "^0.3.2"
+    trim "0.0.1"
+
 parse-json@^2.2.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/parse-json/-/parse-json-2.2.0.tgz#f480f40434ef80741f8469099f8dea18f55a4dc9"
@@ -6281,6 +6611,10 @@ parse5@^1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/parse5/-/parse5-1.5.1.tgz#9b7f3b0de32be78dc2401b17573ccaf0f6f59d94"
 
+parseurl@~1.3.2:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.2.tgz#fc289d4ed8993119460c156253262cdc8de65bf3"
+
 pascalcase@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/pascalcase/-/pascalcase-0.1.1.tgz#b363e55e8006ca6fe21784d2db22bd15d7917f14"
@@ -6315,6 +6649,10 @@ path-parse@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.5.tgz#3c1adf871ea9cd6c9431b6ea2bd74a0ff055c4c1"
 
+path-to-regexp@0.1.7:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/path-to-regexp/-/path-to-regexp-0.1.7.tgz#df604178005f522f15eb4490e7247a1bfaa67f8c"
+
 path-type@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/path-type/-/path-type-1.1.0.tgz#59c44f7ee491da704da415da5a4070ba4f8fe441"
@@ -6572,6 +6910,13 @@ prop-types@^15.6.0:
     loose-envify "^1.3.1"
     object-assign "^4.1.1"
 
+proxy-addr@~2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/proxy-addr/-/proxy-addr-2.0.3.tgz#355f262505a621646b3130a728eb647e22055341"
+  dependencies:
+    forwarded "~0.1.2"
+    ipaddr.js "1.6.0"
+
 prr@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/prr/-/prr-1.0.1.tgz#d3fc114ba06995a45ec6893f484ceb1d78f5f476"
@@ -6621,13 +6966,21 @@ q@^1.4.1, q@^1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/q/-/q-1.5.1.tgz#7e32f75b41381291d04611f1bf14109ac00651d7"
 
+qs@6.5.1, qs@~6.5.1:
+  version "6.5.1"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.1.tgz#349cdf6eef89ec45c12d7d5eb3fc0c870343a6d8"
+
 qs@~6.4.0:
   version "6.4.0"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
 
-qs@~6.5.1:
-  version "6.5.1"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.1.tgz#349cdf6eef89ec45c12d7d5eb3fc0c870343a6d8"
+query-string@^5.0.1:
+  version "5.1.1"
+  resolved "https://registry.yarnpkg.com/query-string/-/query-string-5.1.1.tgz#a78c012b71c17e05f2e3fa2319dd330682efb3cb"
+  dependencies:
+    decode-uri-component "^0.2.0"
+    object-assign "^4.1.0"
+    strict-uri-encode "^1.0.0"
 
 querystring-es3@^0.2.0:
   version "0.2.1"
@@ -6661,6 +7014,23 @@ randomfill@^1.0.3:
     randombytes "^2.0.5"
     safe-buffer "^5.1.0"
 
+randomhex@0.1.5:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/randomhex/-/randomhex-0.1.5.tgz#baceef982329091400f2a2912c6cd02f1094f585"
+
+range-parser@~1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.0.tgz#f49be6b487894ddc40dcc94a322f611092e00d5e"
+
+raw-body@2.3.2:
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.3.2.tgz#bcd60c77d3eb93cde0050295c3f379389bc88f89"
+  dependencies:
+    bytes "3.0.0"
+    http-errors "1.6.2"
+    iconv-lite "0.4.19"
+    unpipe "1.0.0"
+
 rc@^1.1.7:
   version "1.2.5"
   resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.5.tgz#275cd687f6e3b36cc756baa26dfee80a790301fd"
@@ -7119,6 +7489,10 @@ ripemd160@^2.0.0, ripemd160@^2.0.1:
     hash-base "^2.0.0"
     inherits "^2.0.1"
 
+rlp@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/rlp/-/rlp-2.0.0.tgz#9db384ff4b89a8f61563d92395d8625b18f3afb0"
+
 run-async@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/run-async/-/run-async-0.1.0.tgz#c8ad4a5e110661e402a7d21b530e009f25f8e389"
@@ -7161,7 +7535,7 @@ rxjs@^5.0.0-beta.11, rxjs@^5.4.2:
   dependencies:
     symbol-observable "1.0.1"
 
-safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
+safe-buffer@5.1.1, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
 
@@ -7200,14 +7574,64 @@ scoped-regex@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/scoped-regex/-/scoped-regex-1.0.0.tgz#a346bb1acd4207ae70bd7c0c7ca9e566b6baddb8"
 
+secp256k1@^3.0.1:
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/secp256k1/-/secp256k1-3.5.0.tgz#677d3b8a8e04e1a5fa381a1ae437c54207b738d0"
+  dependencies:
+    bindings "^1.2.1"
+    bip66 "^1.1.3"
+    bn.js "^4.11.3"
+    create-hash "^1.1.2"
+    drbg.js "^1.0.1"
+    elliptic "^6.2.3"
+    nan "^2.2.1"
+    safe-buffer "^5.1.0"
+
 "semver@2 || 3 || 4 || 5", semver@5.5.0, semver@^5.1.0, semver@^5.3.0, semver@^5.4.1, semver@^5.5.0:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
 
+send@0.16.2:
+  version "0.16.2"
+  resolved "https://registry.yarnpkg.com/send/-/send-0.16.2.tgz#6ecca1e0f8c156d141597559848df64730a6bbc1"
+  dependencies:
+    debug "2.6.9"
+    depd "~1.1.2"
+    destroy "~1.0.4"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    etag "~1.8.1"
+    fresh "0.5.2"
+    http-errors "~1.6.2"
+    mime "1.4.1"
+    ms "2.0.0"
+    on-finished "~2.3.0"
+    range-parser "~1.2.0"
+    statuses "~1.4.0"
+
 serialize-javascript@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-1.4.0.tgz#7c958514db6ac2443a8abc062dc9f7886a7f6005"
 
+serve-static@1.13.2:
+  version "1.13.2"
+  resolved "https://registry.yarnpkg.com/serve-static/-/serve-static-1.13.2.tgz#095e8472fd5b46237db50ce486a43f4b86c6cec1"
+  dependencies:
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    parseurl "~1.3.2"
+    send "0.16.2"
+
+servify@^0.1.12:
+  version "0.1.12"
+  resolved "https://registry.yarnpkg.com/servify/-/servify-0.1.12.tgz#142ab7bee1f1d033b66d0707086085b17c06db95"
+  dependencies:
+    body-parser "^1.16.0"
+    cors "^2.8.1"
+    express "^4.14.0"
+    request "^2.79.0"
+    xhr "^2.3.3"
+
 set-blocking@^2.0.0, set-blocking@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
@@ -7244,6 +7668,14 @@ setimmediate@^1.0.4, setimmediate@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/setimmediate/-/setimmediate-1.0.5.tgz#290cbb232e306942d7d7ea9b83732ab7856f8285"
 
+setprototypeof@1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.0.3.tgz#66567e37043eeb4f04d91bd658c0cbefb55b8e04"
+
+setprototypeof@1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.1.0.tgz#d0bd85536887b6fe7c0d818cb962d9d91c54e656"
+
 sha.js@^2.4.0, sha.js@^2.4.8:
   version "2.4.10"
   resolved "https://registry.yarnpkg.com/sha.js/-/sha.js-2.4.10.tgz#b1fde5cd7d11a5626638a07c604ab909cfa31f9b"
@@ -7251,6 +7683,12 @@ sha.js@^2.4.0, sha.js@^2.4.8:
     inherits "^2.0.1"
     safe-buffer "^5.0.1"
 
+sha3@^1.1.0:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/sha3/-/sha3-1.2.2.tgz#a66c5098de4c25bc88336ec8b4817d005bca7ba9"
+  dependencies:
+    nan "2.10.0"
+
 shebang-command@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/shebang-command/-/shebang-command-1.2.0.tgz#44aac65b695b03398968c39f363fee5deafdf1ea"
@@ -7285,6 +7723,18 @@ signal-exit@^3.0.0, signal-exit@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
 
+simple-concat@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/simple-concat/-/simple-concat-1.0.0.tgz#7344cbb8b6e26fb27d66b2fc86f9f6d5997521c6"
+
+simple-get@^2.7.0:
+  version "2.8.1"
+  resolved "https://registry.yarnpkg.com/simple-get/-/simple-get-2.8.1.tgz#0e22e91d4575d87620620bc91308d57a77f44b5d"
+  dependencies:
+    decompress-response "^3.3.0"
+    once "^1.3.1"
+    simple-concat "^1.0.0"
+
 slash@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/slash/-/slash-1.0.0.tgz#c41f2f6c39fc16d1cd17ad4b5d896114ae470d55"
@@ -7504,6 +7954,14 @@ static-extend@^0.1.1:
     define-property "^0.2.5"
     object-copy "^0.1.0"
 
+"statuses@>= 1.3.1 < 2", "statuses@>= 1.4.0 < 2":
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.5.0.tgz#161c7dac177659fd9811f43771fa99381478628c"
+
+statuses@~1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.4.0.tgz#bb73d446da2796106efcc1b601a253d6c46bd087"
+
 stealthy-require@^1.1.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/stealthy-require/-/stealthy-require-1.1.1.tgz#35b09875b4ff49f26a777e509b3090a3226bf24b"
@@ -7546,6 +8004,10 @@ stream-to-observable@^0.2.0:
   dependencies:
     any-observable "^0.2.0"
 
+strict-uri-encode@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/strict-uri-encode/-/strict-uri-encode-1.1.0.tgz#279b225df1d582b1f54e65addd4352e18faa0713"
+
 string-length@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/string-length/-/string-length-2.0.0.tgz#d40dbb686a3ace960c1cffca562bf2c45f8363ed"
@@ -7922,7 +8384,7 @@ through@2, "through@>=2.2.7 <3", through@^2.3.6:
   version "2.3.8"
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
 
-timed-out@^4.0.0:
+timed-out@^4.0.0, timed-out@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/timed-out/-/timed-out-4.0.1.tgz#f32eacac5a175bea25d7fab565ab3ed8741ef56f"
 
@@ -8067,6 +8529,19 @@ type-check@~0.3.2:
   dependencies:
     prelude-ls "~1.1.2"
 
+type-is@~1.6.15, type-is@~1.6.16:
+  version "1.6.16"
+  resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.16.tgz#f89ce341541c672b25ee7ae3c73dee3b2be50194"
+  dependencies:
+    media-typer "0.3.0"
+    mime-types "~2.1.18"
+
+typedarray-to-buffer@^3.1.2:
+  version "3.1.5"
+  resolved "https://registry.yarnpkg.com/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz#a97ee7a9ff42691b9f783ff1bc5112fe3fca9080"
+  dependencies:
+    is-typedarray "^1.0.0"
+
 typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
@@ -8112,6 +8587,14 @@ uid-number@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/uid-number/-/uid-number-0.0.6.tgz#0ea10e8035e8eb5b8e4449f06da1c730663baa81"
 
+ultron@~1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.1.1.tgz#9fe1536a10a664a65266a1e3ccf85fd36302bc9c"
+
+underscore@1.8.3:
+  version "1.8.3"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.8.3.tgz#4f3fb53b106e6097fcf9cb4109f2a5e9bdfa5022"
+
 underscore@~1.6.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.6.0.tgz#8b38b10cacdef63337b8b24e4ff86d45aea529a8"
@@ -8192,6 +8675,10 @@ unist-util-visit@^1.1.0:
   dependencies:
     unist-util-is "^2.1.1"
 
+unpipe@1.0.0, unpipe@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
+
 unset-value@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unset-value/-/unset-value-1.0.0.tgz#8376873f7d2335179ffb1e6fc3a8ed0dfc8ab559"
@@ -8219,6 +8706,10 @@ url-parse-lax@^1.0.0:
   dependencies:
     prepend-http "^1.0.1"
 
+url-set-query@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/url-set-query/-/url-set-query-1.0.0.tgz#016e8cfd7c20ee05cafe7795e892bd0702faa339"
+
 url-to-options@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/url-to-options/-/url-to-options-1.0.1.tgz#1505a03a289a48cbd7a434efbaeec5055f5633a9"
@@ -8246,6 +8737,10 @@ user-home@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/user-home/-/user-home-1.1.1.tgz#2b5be23a32b63a7c9deb8d0f28d485724a3df190"
 
+utf8@2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/utf8/-/utf8-2.1.1.tgz#2e01db02f7d8d0944f77104f1609eb0c304cf768"
+
 utf8@^2.1.1:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/utf8/-/utf8-2.1.2.tgz#1fa0d9270e9be850d9b05027f63519bf46457d96"
@@ -8267,6 +8762,10 @@ util@0.10.3, util@^0.10.3:
   dependencies:
     inherits "2.0.1"
 
+utils-merge@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
+
 uuid@^3.0.0, uuid@^3.1.0:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.2.1.tgz#12c528bb9d58d0b9265d9a2f6f0fe8be17ff1f14"
@@ -8288,6 +8787,10 @@ validate-npm-package-license@^3.0.1:
     spdx-correct "^2.0.4"
     spdx-expression-parse "^3.0.0"
 
+vary@^1, vary@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
+
 verror@1.10.0:
   version "1.10.0"
   resolved "https://registry.yarnpkg.com/verror/-/verror-1.10.0.tgz#3a105ca17053af55d6e270c1f8288682e18da400"
@@ -8393,6 +8896,31 @@ watchpack@^1.4.0:
     chokidar "^1.7.0"
     graceful-fs "^4.1.2"
 
+web3-core-helpers@1.0.0-beta.34:
+  version "1.0.0-beta.34"
+  resolved "https://registry.yarnpkg.com/web3-core-helpers/-/web3-core-helpers-1.0.0-beta.34.tgz#b168da00d3e19e156bc15ae203203dd4dfee2d03"
+  dependencies:
+    underscore "1.8.3"
+    web3-eth-iban "1.0.0-beta.34"
+    web3-utils "1.0.0-beta.34"
+
+web3-core-method@1.0.0-beta.34:
+  version "1.0.0-beta.34"
+  resolved "https://registry.yarnpkg.com/web3-core-method/-/web3-core-method-1.0.0-beta.34.tgz#ec163c8a2c490fa02a7ec15559fa7307fc7cc6dd"
+  dependencies:
+    underscore "1.8.3"
+    web3-core-helpers "1.0.0-beta.34"
+    web3-core-promievent "1.0.0-beta.34"
+    web3-core-subscriptions "1.0.0-beta.34"
+    web3-utils "1.0.0-beta.34"
+
+web3-core-promievent@1.0.0-beta.34:
+  version "1.0.0-beta.34"
+  resolved "https://registry.yarnpkg.com/web3-core-promievent/-/web3-core-promievent-1.0.0-beta.34.tgz#a4f4fa6784bb293e82c60960ae5b56a94cd03edc"
+  dependencies:
+    any-promise "1.3.0"
+    eventemitter3 "1.1.1"
+
 web3-core-promievent@^1.0.0-beta.21:
   version "1.0.0-beta.30"
   resolved "https://registry.yarnpkg.com/web3-core-promievent/-/web3-core-promievent-1.0.0-beta.30.tgz#6205192bfb097441132226a5939ec5aed3a8a291"
@@ -8400,6 +8928,93 @@ web3-core-promievent@^1.0.0-beta.21:
     bluebird "3.3.1"
     eventemitter3 "1.1.1"
 
+web3-core-requestmanager@1.0.0-beta.34:
+  version "1.0.0-beta.34"
+  resolved "https://registry.yarnpkg.com/web3-core-requestmanager/-/web3-core-requestmanager-1.0.0-beta.34.tgz#01f8f6cf2ae6b6f0b70c38bae1ef741b5bab215c"
+  dependencies:
+    underscore "1.8.3"
+    web3-core-helpers "1.0.0-beta.34"
+    web3-providers-http "1.0.0-beta.34"
+    web3-providers-ipc "1.0.0-beta.34"
+    web3-providers-ws "1.0.0-beta.34"
+
+web3-core-subscriptions@1.0.0-beta.34:
+  version "1.0.0-beta.34"
+  resolved "https://registry.yarnpkg.com/web3-core-subscriptions/-/web3-core-subscriptions-1.0.0-beta.34.tgz#9fed144033f221c3cf21060302ffdaf5ef2de2de"
+  dependencies:
+    eventemitter3 "1.1.1"
+    underscore "1.8.3"
+    web3-core-helpers "1.0.0-beta.34"
+
+web3-core@1.0.0-beta.34:
+  version "1.0.0-beta.34"
+  resolved "https://registry.yarnpkg.com/web3-core/-/web3-core-1.0.0-beta.34.tgz#121be8555e9fb00d2c5d05ddd3381d0c9e46987e"
+  dependencies:
+    web3-core-helpers "1.0.0-beta.34"
+    web3-core-method "1.0.0-beta.34"
+    web3-core-requestmanager "1.0.0-beta.34"
+    web3-utils "1.0.0-beta.34"
+
+web3-eth-iban@1.0.0-beta.34:
+  version "1.0.0-beta.34"
+  resolved "https://registry.yarnpkg.com/web3-eth-iban/-/web3-eth-iban-1.0.0-beta.34.tgz#9af458605867ccf74ea979aaf326b38ba6a5ba0c"
+  dependencies:
+    bn.js "4.11.6"
+    web3-utils "1.0.0-beta.34"
+
+web3-eth-personal@^1.0.0-beta.34:
+  version "1.0.0-beta.34"
+  resolved "https://registry.yarnpkg.com/web3-eth-personal/-/web3-eth-personal-1.0.0-beta.34.tgz#9afba167342ebde5420bcd5895c3f6c34388f205"
+  dependencies:
+    web3-core "1.0.0-beta.34"
+    web3-core-helpers "1.0.0-beta.34"
+    web3-core-method "1.0.0-beta.34"
+    web3-net "1.0.0-beta.34"
+    web3-utils "1.0.0-beta.34"
+
+web3-net@1.0.0-beta.34:
+  version "1.0.0-beta.34"
+  resolved "https://registry.yarnpkg.com/web3-net/-/web3-net-1.0.0-beta.34.tgz#427cea2f431881449c8e38d523290f173f9ff63d"
+  dependencies:
+    web3-core "1.0.0-beta.34"
+    web3-core-method "1.0.0-beta.34"
+    web3-utils "1.0.0-beta.34"
+
+web3-providers-http@1.0.0-beta.34:
+  version "1.0.0-beta.34"
+  resolved "https://registry.yarnpkg.com/web3-providers-http/-/web3-providers-http-1.0.0-beta.34.tgz#e561b52bbb43766282007d40285bfe3550c27e7a"
+  dependencies:
+    web3-core-helpers "1.0.0-beta.34"
+    xhr2 "0.1.4"
+
+web3-providers-ipc@1.0.0-beta.34:
+  version "1.0.0-beta.34"
+  resolved "https://registry.yarnpkg.com/web3-providers-ipc/-/web3-providers-ipc-1.0.0-beta.34.tgz#a1b77f1a306d73649a9c039052e40cb71328d00a"
+  dependencies:
+    oboe "2.1.3"
+    underscore "1.8.3"
+    web3-core-helpers "1.0.0-beta.34"
+
+web3-providers-ws@1.0.0-beta.34:
+  version "1.0.0-beta.34"
+  resolved "https://registry.yarnpkg.com/web3-providers-ws/-/web3-providers-ws-1.0.0-beta.34.tgz#7de70f1b83f2de36476772156becfef6e3516eb3"
+  dependencies:
+    underscore "1.8.3"
+    web3-core-helpers "1.0.0-beta.34"
+    websocket "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible"
+
+web3-utils@1.0.0-beta.34:
+  version "1.0.0-beta.34"
+  resolved "https://registry.yarnpkg.com/web3-utils/-/web3-utils-1.0.0-beta.34.tgz#9411fc39aaef39ca4e06169f762297d9ff020970"
+  dependencies:
+    bn.js "4.11.6"
+    eth-lib "0.1.27"
+    ethjs-unit "0.1.6"
+    number-to-bn "1.7.0"
+    randomhex "0.1.5"
+    underscore "1.8.3"
+    utf8 "2.1.1"
+
 web3@^0.20.1:
   version "0.20.5"
   resolved "https://registry.yarnpkg.com/web3/-/web3-0.20.5.tgz#c5048d35f7bf4e2c4c280ce51fbbbc951290b165"
@@ -8519,6 +9134,15 @@ webpack@^4.0.1:
     watchpack "^1.4.0"
     webpack-sources "^1.0.1"
 
+"websocket@git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible":
+  version "1.0.24"
+  resolved "git://github.com/frozeman/WebSocket-Node.git#7004c39c42ac98875ab61126e5b4a925430f592c"
+  dependencies:
+    debug "^2.2.0"
+    nan "^2.3.3"
+    typedarray-to-buffer "^3.1.2"
+    yaeti "^0.0.6"
+
 whatwg-encoding@^1.0.1, whatwg-encoding@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/whatwg-encoding/-/whatwg-encoding-1.0.3.tgz#57c235bc8657e914d24e1a397d3c82daee0a6ba3"
@@ -8619,6 +9243,14 @@ write@^0.2.1:
   dependencies:
     mkdirp "^0.5.1"
 
+ws@^3.0.0:
+  version "3.3.3"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-3.3.3.tgz#f1cf84fe2d5e901ebce94efaece785f187a228f2"
+  dependencies:
+    async-limiter "~1.0.0"
+    safe-buffer "~5.1.0"
+    ultron "~1.1.0"
+
 ws@^4.0.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/ws/-/ws-4.1.0.tgz#a979b5d7d4da68bf54efe0408967c324869a7289"
@@ -8634,10 +9266,37 @@ x-is-string@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/x-is-string/-/x-is-string-0.1.0.tgz#474b50865af3a49a9c4657f05acd145458f77d82"
 
-xhr2@*:
+xhr-request-promise@^0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/xhr-request-promise/-/xhr-request-promise-0.1.2.tgz#343c44d1ee7726b8648069682d0f840c83b4261d"
+  dependencies:
+    xhr-request "^1.0.1"
+
+xhr-request@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/xhr-request/-/xhr-request-1.1.0.tgz#f4a7c1868b9f198723444d82dcae317643f2e2ed"
+  dependencies:
+    buffer-to-arraybuffer "^0.0.5"
+    object-assign "^4.1.1"
+    query-string "^5.0.1"
+    simple-get "^2.7.0"
+    timed-out "^4.0.1"
+    url-set-query "^1.0.0"
+    xhr "^2.0.4"
+
+xhr2@*, xhr2@0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/xhr2/-/xhr2-0.1.4.tgz#7f87658847716db5026323812f818cadab387a5f"
 
+xhr@^2.0.4, xhr@^2.3.3:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/xhr/-/xhr-2.4.1.tgz#ba982cced205ae5eec387169ac9dc77ca4853d38"
+  dependencies:
+    global "~4.3.0"
+    is-function "^1.0.1"
+    parse-headers "^2.0.0"
+    xtend "^4.0.0"
+
 "xml-name-validator@>= 2.0.1 < 3.0.0":
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/xml-name-validator/-/xml-name-validator-2.0.1.tgz#4d8b8f1eccd3419aa362061becef515e1e559635"
@@ -8662,6 +9321,10 @@ y18n@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
 
+yaeti@^0.0.6:
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/yaeti/-/yaeti-0.0.6.tgz#f26f484d72684cf42bedfb76970aa1608fbf9577"
+
 yallist@^2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"