diff --git a/.gitignore b/.gitignore
index 654bb063..1fe4a343 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,7 +10,9 @@ coverage
 deploy/*.config
 deploy/*.env*
 !deploy/.env.example
+!deploy/.env.kovan-sokol
+!deploy/.env.mainnet-xdai
 upgrade/*.env*
 !upgrade/.env.example
 coverage.json
-
+.env
\ No newline at end of file
diff --git a/deploy.sh b/deploy.sh
deleted file mode 100755
index 60e364f9..00000000
--- a/deploy.sh
+++ /dev/null
@@ -1,41 +0,0 @@
-#!/bin/bash
-
-if [ -f /.dockerenv ]; then
-  # the script is run within the container
-  cd deploy
-
-  if [ "$1" == "token" ]; then
-    echo "Deployment of token for testing environment started"
-    node testenv-deploy.js token
-  elif [ "$1" == "interestReceiver" ]; then
-    echo "Deployment of interest receiver for testing environment started"
-    node testenv-deploy.js interestReceiver
-  else
-    echo "Bridge contract deployment started"
-    yarn run deploy
-    if [ -f bridgeDeploymentResults.json ]; then
-      cat bridgeDeploymentResults.json
-      echo
-    fi
-  fi
-  exit 0
-fi
-
-which docker-compose > /dev/null
-if [ "$?" == "1" ]; then
-  echo "docker-compose is needed to use this type of deployment"
-  exit 1
-fi
-
-if [ ! -f ./deploy/.env ]; then
-  echo "The .env file not found in the 'deploy' directory"
-  exit 3
-fi
-
-docker-compose images bridge-contracts >/dev/null 2>/dev/null
-if [ "$?" == "1" ]; then
-  echo "Docker image 'bridge-contracts' not found"
-  exit 2
-fi
-
-docker-compose run bridge-contracts deploy.sh "$@"
diff --git a/deploy/.env.kovan-sokol b/deploy/.env.kovan-sokol
new file mode 100644
index 00000000..7e3515e7
--- /dev/null
+++ b/deploy/.env.kovan-sokol
@@ -0,0 +1,119 @@
+# WARNING: Do not commit secrets in this file
+
+
+# The type of bridge. Defines set of contracts to be deployed.
+
+BRIDGE_MODE=MULTI_AMB_ERC_TO_ERC
+
+# The address of the account responsible for contracts
+# deployments and initial configuration. The account's balance must contain
+# funds from both networks. This must be an account on the trezor
+# trezorctl ethereum get-address -n "m/44'/60'/0'/0/1"
+HOME_DEPLOYMENT_ACCOUNT_ADDRESS=0xcceFb7EF9956B08B69c951Ed4f4A176972F700F1
+# trezorctl ethereum get-address -n "m/44'/1'/0'/0/1"
+FOREIGN_DEPLOYMENT_ACCOUNT_ADDRESS=0xE3423F92acB011F24D64154daA65247039DbffA3
+
+FOREIGN_EXPLORER_URL=https://kovan.etherscan.io/api
+
+
+# Extra gas added to the estimated gas of a particular deployment/configuration transaction
+# E.g. if estimated gas returns 100000 and the parameter is 0.2,
+# the transaction gas limit will be (100000 + 100000 * 0.2) = 120000
+DEPLOYMENT_GAS_LIMIT_EXTRA=0.2
+# The "gasPrice" parameter set in every deployment/configuration transaction on
+# Home network (in Wei).
+HOME_DEPLOYMENT_GAS_PRICE=1200000000
+HOME_GAS_PRICE=1200000000
+# The "gasPrice" parameter set in every deployment/configuration transaction on
+# Foreign network (in Wei).
+FOREIGN_DEPLOYMENT_GAS_PRICE=1200000000
+# The timeout limit to wait for receipt of the deployment/configuration
+# transaction.
+GET_RECEIPT_INTERVAL_IN_MILLISECONDS=3000
+
+# The RPC channel to a Home node able to handle deployment/configuration
+# transactions.
+HOME_RPC_URL=https://sokol.poa.network/
+HOME_CHAIN_ID=77
+HOME_KEY_DERIVATION_PATH="m/44'/60'/0'/0"
+HOME_EXPLORER_URL=https://blockscout.com/poa/sokol/api
+
+# Address on Home network with permissions to change parameters of the bridge contract.
+# For extra security we recommended using a multi-sig wallet contract address here.
+HOME_BRIDGE_OWNER=0xcceFb7EF9956B08B69c951Ed4f4A176972F700F1
+# Address on Home network with permissions to upgrade the bridge contract
+HOME_UPGRADEABLE_ADMIN=0xcceFb7EF9956B08B69c951Ed4f4A176972F700F1
+# The default daily transaction limit in Wei. As soon as this limit is exceeded, any
+# transaction which requests to relay assets will fail.
+HOME_DAILY_LIMIT=30000000000000000000000000
+# The default maximum limit for one transaction in Wei. If a single transaction tries to
+# relay funds exceeding this limit it will fail. HOME_MAX_AMOUNT_PER_TX must be
+# less than HOME_DAILY_LIMIT.
+HOME_MAX_AMOUNT_PER_TX=1500000000000000000000000
+# The default minimum limit for one transaction in Wei. If a transaction tries to relay
+# funds below this limit it will fail. This is required to prevent dryout
+# validator accounts.
+HOME_MIN_AMOUNT_PER_TX=500000000000000000
+
+# The RPC channel to a Foreign node able to handle deployment/configuration
+# transactions.
+FOREIGN_RPC_URL=https://kovan.infura.io/
+FOREIGN_CHAIN_ID=42
+FOREIGN_KEY_DERIVATION_PATH="m/44'/1'/0'/0"
+# Address on Foreign network with permissions to change parameters of the bridge contract.
+# For extra security we recommended using a multi-sig wallet contract address here.
+FOREIGN_BRIDGE_OWNER=0xE3423F92acB011F24D64154daA65247039DbffA3
+# Address on Foreign network with permissions to upgrade the bridge contract and the
+# bridge validator contract.
+FOREIGN_UPGRADEABLE_ADMIN=0xE3423F92acB011F24D64154daA65247039DbffA3
+# The default daily limit in Wei. As soon as this limit is exceeded, any transaction
+# requesting to relay assets will fail.
+FOREIGN_DAILY_LIMIT=15000000000000000000000000
+# The default maximum limit per one transaction in Wei. If a transaction tries to relay
+# funds exceeding this limit it will fail. FOREIGN_MAX_AMOUNT_PER_TX must be less
+# than FOREIGN_DAILY_LIMIT.
+FOREIGN_MAX_AMOUNT_PER_TX=750000000000000000000000
+# The default minimum limit for one transaction in Wei. If a transaction tries to relay
+# funds below this limit it will fail.
+FOREIGN_MIN_AMOUNT_PER_TX=500000000000000000
+
+# The address of the existing AMB bridge in the Home network that will be used to pass messages
+# to the Foreign network.
+HOME_AMB_BRIDGE=0xFe446bEF1DbF7AFE24E81e05BC8B271C1BA9a560
+# The address of the existing AMB bridge in the Foreign network that will be used to pass messages
+# to the Home network.
+FOREIGN_AMB_BRIDGE=0xfe446bef1dbf7afe24e81e05bc8b271c1ba9a560
+# The gas limit that will be used in the execution of the message passed to the mediator contract
+# in the Foreign network.
+HOME_MEDIATOR_REQUEST_GAS_LIMIT=2000000
+# The gas limit that will be used in the execution of the message passed to the mediator contract
+# in the Home network.
+FOREIGN_MEDIATOR_REQUEST_GAS_LIMIT=2000000
+
+# Variable to define whether to collect fee on bridge transfers
+# On this bridge mode only BOTH_DIRECTIONS is supported, leave false to disable fees collection
+HOME_REWARDABLE=false
+# On this this bridge mode, fees collection on home side is not supported, should be false.
+FOREIGN_REWARDABLE=false
+
+# Fee to be taken for every transaction directed from the Home network to the Foreign network
+# Makes sense only when HOME_REWARDABLE=BOTH_DIRECTIONS
+# e.g. 0.1% fee
+HOME_TRANSACTIONS_FEE=0.001
+# Fee to be taken for every transaction directed from the Foreign network to the Home network
+# Makes sense only when HOME_REWARDABLE=BOTH_DIRECTIONS
+# e.g. 0.1% fee
+FOREIGN_TRANSACTIONS_FEE=0.001
+
+# List of accounts where rewards should be transferred in Home network separated by space without quotes
+# Makes sense only when HOME_REWARDABLE=BOTH_DIRECTIONS
+#E.g. HOME_MEDIATOR_REWARD_ACCOUNTS=0x 0x 0x
+HOME_MEDIATOR_REWARD_ACCOUNTS=0xcceFb7EF9956B08B69c951Ed4f4A176972F700F1
+
+# address of an already deployed PermittableToken contract that will be used as an implementation for all new created tokens
+# leave empty, if you want to deploy a new PermittableToken for further usage
+HOME_ERC677_TOKEN_IMAGE=0x769Aed9d3F34f320010fa31cd04Fe3bAD8700033
+
+BRIDGE_UTILS_ON_HOME_ADDRESS=0x3BBAD838bd46692583CF811884d3CDcD7cb65045
+FOREIGN_ALLOW_TOKEN_LIST=0xd6E34821F508e4247Db359CFceE0cb5e8050972a,0x4F96Fe3b7A6Cf9725f59d353F723c1bDb64CA6Aa
+
diff --git a/deploy/.env.mainnet-xdai b/deploy/.env.mainnet-xdai
new file mode 100644
index 00000000..bdfadefc
--- /dev/null
+++ b/deploy/.env.mainnet-xdai
@@ -0,0 +1,114 @@
+# WARNING: Do not commit secrets in this file
+
+# The type of bridge. Defines set of contracts to be deployed.
+
+BRIDGE_MODE=MULTI_AMB_ERC_TO_ERC
+
+# The address of the account responsible for contracts
+# deployments and initial configuration. The account's balance must contain
+# funds from both networks. This must be an account on the trezor
+HOME_DEPLOYMENT_ACCOUNT_ADDRESS=0xA06C2B0b8a2EECA46eac0ca6Cc958Dc94101dC5d
+FOREIGN_DEPLOYMENT_ACCOUNT_ADDRESS=0xA06C2B0b8a2EECA46eac0ca6Cc958Dc94101dC5d
+
+FOREIGN_EXPLORER_URL=https://api.etherscan.io/api
+
+# Extra gas added to the estimated gas of a particular deployment/configuration transaction
+# E.g. if estimated gas returns 100000 and the parameter is 0.2,
+# the transaction gas limit will be (100000 + 100000 * 0.2) = 120000
+DEPLOYMENT_GAS_LIMIT_EXTRA=0.2
+# The "gasPrice" parameter set in every deployment/configuration transaction on
+# Home network (in Wei).
+HOME_DEPLOYMENT_GAS_PRICE=1000000000
+HOME_GAS_PRICE=1000000000
+# The "gasPrice" parameter set in every deployment/configuration transaction on
+# Foreign network (in Wei).
+FOREIGN_DEPLOYMENT_GAS_PRICE=181000000000
+# The timeout limit to wait for receipt of the deployment/configuration
+# transaction.
+GET_RECEIPT_INTERVAL_IN_MILLISECONDS=3000
+
+# The RPC channel to a Home node able to handle deployment/configuration
+# transactions.
+HOME_RPC_URL=https://rpc.xdaichain.com/
+HOME_CHAIN_ID=100
+HOME_KEY_DERIVATION_PATH="m/44'/60'/0'/0"
+HOME_EXPLORER_URL=https://blockscout.com/poa/xdai/api
+
+# Address on Home network with permissions to change parameters of the bridge contract.
+# For extra security we recommended using a multi-sig wallet contract address here.
+HOME_BRIDGE_OWNER=0xA06C2B0b8a2EECA46eac0ca6Cc958Dc94101dC5d
+# Address on Home network with permissions to upgrade the bridge contract
+HOME_UPGRADEABLE_ADMIN=0xA06C2B0b8a2EECA46eac0ca6Cc958Dc94101dC5d
+# The default daily transaction limit in Wei. As soon as this limit is exceeded, any
+# transaction which requests to relay assets will fail.
+HOME_DAILY_LIMIT=30000000000000000000000000
+# The default maximum limit for one transaction in Wei. If a single transaction tries to
+# relay funds exceeding this limit it will fail. HOME_MAX_AMOUNT_PER_TX must be
+# less than HOME_DAILY_LIMIT.
+HOME_MAX_AMOUNT_PER_TX=1500000000000000000000000
+# The default minimum limit for one transaction in Wei. If a transaction tries to relay
+# funds below this limit it will fail. This is required to prevent dryout
+# validator accounts.
+HOME_MIN_AMOUNT_PER_TX=500000000000000000
+
+# The RPC channel to a Foreign node able to handle deployment/configuration
+# transactions.
+FOREIGN_RPC_URL=https://mainnet.infura.io
+FOREIGN_CHAIN_ID=1
+FOREIGN_KEY_DERIVATION_PATH="m/44'/60'/0'/0"
+# Address on Foreign network with permissions to change parameters of the bridge contract.
+# For extra security we recommended using a multi-sig wallet contract address here.
+FOREIGN_BRIDGE_OWNER=0xA06C2B0b8a2EECA46eac0ca6Cc958Dc94101dC5d
+# Address on Foreign network with permissions to upgrade the bridge contract and the
+# bridge validator contract.
+FOREIGN_UPGRADEABLE_ADMIN=0xA06C2B0b8a2EECA46eac0ca6Cc958Dc94101dC5d
+# The default daily limit in Wei. As soon as this limit is exceeded, any transaction
+# requesting to relay assets will fail.
+FOREIGN_DAILY_LIMIT=15000000000000000000000000
+# The default maximum limit per one transaction in Wei. If a transaction tries to relay
+# funds exceeding this limit it will fail. FOREIGN_MAX_AMOUNT_PER_TX must be less
+# than FOREIGN_DAILY_LIMIT.
+FOREIGN_MAX_AMOUNT_PER_TX=750000000000000000000000
+# The default minimum limit for one transaction in Wei. If a transaction tries to relay
+# funds below this limit it will fail.
+FOREIGN_MIN_AMOUNT_PER_TX=500000000000000000
+
+# The address of the existing AMB bridge in the Home network that will be used to pass messages
+# to the Foreign network.
+HOME_AMB_BRIDGE=0x75Df5AF045d91108662D8080fD1FEFAd6aA0bb59
+# The address of the existing AMB bridge in the Foreign network that will be used to pass messages
+# to the Home network.
+FOREIGN_AMB_BRIDGE=0x4C36d2919e407f0Cc2Ee3c993ccF8ac26d9CE64e
+# The gas limit that will be used in the execution of the message passed to the mediator contract
+# in the Foreign network.
+HOME_MEDIATOR_REQUEST_GAS_LIMIT=2000000
+# The gas limit that will be used in the execution of the message passed to the mediator contract
+# in the Home network.
+FOREIGN_MEDIATOR_REQUEST_GAS_LIMIT=2000000
+
+# Variable to define whether to collect fee on bridge transfers
+# On this bridge mode only BOTH_DIRECTIONS is supported, leave false to disable fees collection
+HOME_REWARDABLE=false
+# On this this bridge mode, fees collection on home side is not supported, should be false.
+FOREIGN_REWARDABLE=false
+
+# Fee to be taken for every transaction directed from the Home network to the Foreign network
+# Makes sense only when HOME_REWARDABLE=BOTH_DIRECTIONS
+# e.g. 0.1% fee
+HOME_TRANSACTIONS_FEE=0.001
+# Fee to be taken for every transaction directed from the Foreign network to the Home network
+# Makes sense only when HOME_REWARDABLE=BOTH_DIRECTIONS
+# e.g. 0.1% fee
+FOREIGN_TRANSACTIONS_FEE=0.001
+
+# List of accounts where rewards should be transferred in Home network separated by space without quotes
+# Makes sense only when HOME_REWARDABLE=BOTH_DIRECTIONS
+#E.g. HOME_MEDIATOR_REWARD_ACCOUNTS=0x 0x 0x
+HOME_MEDIATOR_REWARD_ACCOUNTS=0xA06C2B0b8a2EECA46eac0ca6Cc958Dc94101dC5d
+
+# address of an already deployed PermittableToken contract that will be used as an implementation for all new created tokens
+# leave empty, if you want to deploy a new PermittableToken for further usage
+HOME_ERC677_TOKEN_IMAGE=
+
+BRIDGE_UTILS_ON_HOME_ADDRESS=0xa79206F956461e053DbCF33ADDFa77553Df58D7F
+FOREIGN_ALLOW_TOKEN_LIST=0x954b890704693af242613edEf1B603825afcD708,0x6B175474E89094C44Da98b954EedeAC495271d0F
diff --git a/deploy/bridgeDeploymentResults.json.kovan-sokol b/deploy/bridgeDeploymentResults.json.kovan-sokol
new file mode 100644
index 00000000..4c9521a2
--- /dev/null
+++ b/deploy/bridgeDeploymentResults.json.kovan-sokol
@@ -0,0 +1,12 @@
+{
+    "homeBridge": {
+        "homeBridgeMediator": {
+            "address": "0xf9906aD189CC61d0158Cbc770cFB726a084bc6e0"
+        }
+    },
+    "foreignBridge": {
+        "foreignBridgeMediator": {
+            "address": "0x97bB40dB0fb70eeb4e2121B6d708BD91ec4D1a43"
+        }
+    }
+}
\ No newline at end of file
diff --git a/deploy/src/deploymentUtils.js b/deploy/src/deploymentUtils.js
index fede0256..1ca909cb 100644
--- a/deploy/src/deploymentUtils.js
+++ b/deploy/src/deploymentUtils.js
@@ -52,14 +52,6 @@ async function deployContract(contractJson, args, { network, nonce }) {
     nonce
   })
 
-  if (apiUrl) {
-    let constructorArguments
-    if (args.length) {
-      constructorArguments = result.substring(contractJson.bytecode.length)
-    }
-    await verifier({ artifact: contractJson, constructorArguments, address: tx.contractAddress, apiUrl, apiKey })
-  }
-
   return instance
 }
 
@@ -117,7 +109,7 @@ async function sendRawTx({ data, nonce, to, from, url, gasPrice, value }) {
 
     const provider = getWeb3Provider(url)
 
-    console.log('Signing transaction…')
+    console.log('Signing transaction…', { rawTx })
 
     const signedTransaction = await provider.eth.signTransaction(rawTx)
     const txHash = await sendNodeRequest(url, 'eth_sendRawTransaction', signedTransaction.raw)
diff --git a/deploy/upgradePermittableTokenImage.js b/deploy/upgradePermittableTokenImage.js
index 0fe40c41..d5c3ca47 100644
--- a/deploy/upgradePermittableTokenImage.js
+++ b/deploy/upgradePermittableTokenImage.js
@@ -8,24 +8,21 @@ const {
   homeContracts: { ERC677BridgeTokenPermittable, HomeMultiAMBErc20ToErc677 }
 } = require('./src/loadContracts')
 
-const { HOME_DEPLOYMENT_ACCOUNT_ADDRESS, HOME_MEDIATOR_ADDRESS, HOME_TOKENS_TO_UPGRADE } = env
+const { HOME_DEPLOYMENT_ACCOUNT_ADDRESS } = env
+
+const {
+  homeBridge: {
+    homeBridgeMediator: { address: homeProxyAddress }
+  }
+} = require('./bridgeDeploymentResults.json')
 
 async function upgradePermittableTokenImage() {
   console.log('\n[Home] Deploying new ERC677 token image from ', HOME_DEPLOYMENT_ACCOUNT_ADDRESS)
-
-  const homeMediator = new web3Home.eth.Contract(HomeMultiAMBErc20ToErc677.abi, HOME_MEDIATOR_ADDRESS)
-
-  assert.strictEqual(
-    await homeMediator.methods.owner().call(),
-    HOME_DEPLOYMENT_ACCOUNT_ADDRESS,
-    'This operation must be peformed by the owner of the home mediator'
-  )
-
+  console.log(`  Home mediator: ${homeProxyAddress}`)
   let nonce = await web3Home.eth.getTransactionCount(HOME_DEPLOYMENT_ACCOUNT_ADDRESS)
+  console.log(`  Nonce: ${nonce}`)
 
-  const chainId = await web3Home.eth.getChainId()
-  assert.strictEqual(chainId > 0, true, 'Invalid chain ID')
-  const erc677token = await deployContract(ERC677BridgeTokenPermittable, ['', '', 0, chainId], {
+  const erc677token = await deployContract(ERC677BridgeTokenPermittable, ['', '', 0], {
     from: HOME_DEPLOYMENT_ACCOUNT_ADDRESS,
     nonce
   })
@@ -37,29 +34,13 @@ async function upgradePermittableTokenImage() {
   nonce++
 
   console.log('[Home] Setting the token image to the implementation')
+  const homeMediator = new web3Home.eth.Contract(HomeMultiAMBErc20ToErc677.abi, homeProxyAddress)
 
   await homeMediator.methods.setTokenImage(homeTokenImage).send({
     from: HOME_DEPLOYMENT_ACCOUNT_ADDRESS,
     nonce
   })
 
-  nonce++
-
-  const homeTokenList = HOME_TOKENS_TO_UPGRADE.split(',').map(a => a.trim())
-  // eslint-disable-next-line no-restricted-syntax
-  for (const homeTokenAddress of homeTokenList) {
-    console.log('[Home] upgrading metadata of token ', homeTokenAddress)
-    const token = new web3Home.eth.Contract(ERC677BridgeTokenPermittable.abi, homeTokenAddress)
-    const migrateData = await token.methods
-      .migrateTokenMetadata()
-      .send({ from: HOME_DEPLOYMENT_ACCOUNT_ADDRESS, nonce })
-
-    console.log('New symbol', await token.methods.symbol().call())
-    console.log('New name', await token.methods.name().call())
-
-    nonce++
-  }
-
   console.log('success')
 }
 
diff --git a/hardhat.config.js b/hardhat.config.js
index 3c282c5b..3618bc99 100644
--- a/hardhat.config.js
+++ b/hardhat.config.js
@@ -2,6 +2,8 @@ require('@nomiclabs/hardhat-truffle5')
 require('hardhat-contract-sizer')
 require('hardhat-gas-reporter')
 require('solidity-coverage')
+require('@nomiclabs/hardhat-etherscan')
+require('hardhat-tracer')
 
 /**
  * @type import('hardhat/config').HardhatUserConfig
@@ -19,9 +21,21 @@ module.exports = {
   networks: {
     localhost: {
       url: 'http://localhost:8545'
+    },
+    kovan: {
+      url: process.env.KOVAN_RPC_URL || 'https://kovan.infura.io'
+    },
+    sokol: {
+      url: process.env.SOKOL_RPC_URL || 'https://sokol.poa.network/'
     }
   },
   gasReporter: {
     enabled: !!process.env.GASREPORT
+  },
+  etherscan: {
+    apiKey: {
+      kovan: process.env.FOREIGN_EXPLORER_API_KEY,
+      sokol: 'This just has to be any non-empty string'
+    }
   }
 }
diff --git a/package.json b/package.json
index 1e026354..c73b1671 100644
--- a/package.json
+++ b/package.json
@@ -17,15 +17,20 @@
     "coverage": "./node_modules/.bin/hardhat coverage",
     "contract-size": "{ ./node_modules/.bin/hardhat size-contracts | tee /dev/fd/3 | grep -q 'exceed the size limit for mainnet deployment' && exit 1; } 3>&1 || echo 'All contracts within size limit'",
     "deploy:smoketest": "yarn run compile && env HARDHAT_NETWORK=localhost node ./deploy/setupMocks.js && env DOTENV_CONFIG_PATH=./.env.test DOTENV_CONFIG_DEBUG=true yarn run deploy",
-    "deploy": "node -r dotenv/config deploy/deploy.js"
+    "deploy": "node -r dotenv/config deploy/deploy.js",
+    "deploy:kovan-sokol": "env DOTENV_CONFIG_PATH=deploy/.env.kovan-sokol yarn run deploy",
+    "start-forked-node": "./node_modules/.bin/hardhat node --fork $FORK_RPC_URL --fork-block-number $FORK_BLOCK_NUMBER",
+    "start-forked-node:sokol": "env FORK_BLOCK_NUMBER=$SOKOL_FORK_BLOCK_NUMBER FORK_RPC_URL=https://sokol.poa.network HARDHAT_FORKING=sokol yarn start-forked-node"
   },
   "author": "POA network",
   "license": "GPL-3.0-only",
   "dependencies": {
+    "@nomiclabs/hardhat-etherscan": "^3.1.0",
     "@nomiclabs/hardhat-truffle5": "^2.0.5",
     "@truffle/hdwallet-provider": "^2.0.4",
     "hardhat-contract-sizer": "^2.5.0",
     "hardhat-gas-reporter": "^1.0.8",
+    "hardhat-tracer": "^1.1.0-rc.6",
     "openzeppelin-solidity": "1.12.0",
     "solidity-coverage": "^0.7.20",
     "trezor-cli-wallet-provider": "^1.0.7",
diff --git a/upgrade/.env.kovan-sokol b/upgrade/.env.kovan-sokol
new file mode 100644
index 00000000..817a32a3
--- /dev/null
+++ b/upgrade/.env.kovan-sokol
@@ -0,0 +1,21 @@
+# WARNING: Do not commit secrets in this file
+
+FOREIGN_RPC_URL=https://kovan.infura.io
+FOREIGN_DEPLOYMENT_ACCOUNT_ADDRESS=0xE3423F92acB011F24D64154daA65247039DbffA3
+FOREIGN_BRIDGE_PROXY_STORAGE_ADDRESS=0x366b4cc64D30849568af65522De3a68ea6CC78cE
+FOREIGN_GAS_PRICE=1200000000
+NEW_FOREIGN_BRIDGE_MEDIATOR_IMPLEMENTATION=0x5860a10E9Fee2de1a754e3362bE226a84cc49317
+FOREIGN_CURRENT_VERSION=2
+FOREIGN_NEW_VERSION=3
+FOREIGN_CHAIN_ID=42
+FOREIGN_KEY_DERIVATION_PATH="m/44'/1'/0'/0"
+
+HOME_RPC_URL=https://sokol.poa.network
+HOME_DEPLOYMENT_ACCOUNT_ADDRESS=0xcceFb7EF9956B08B69c951Ed4f4A176972F700F1
+HOME_BRIDGE_PROXY_STORAGE_ADDRESS=0x16a80598DD2f143CFBf091638CE3fB02c9135528
+HOME_GAS_PRICE=1200000000
+NEW_HOME_BRIDGE_MEDIATOR_IMPLEMENTATION=0x6224923c8B34C5CE226a31Bbc3661B1BF2fE0227
+HOME_CURRENT_VERSION=2
+HOME_NEW_VERSION=3
+HOME_CHAIN_ID=77
+HOME_KEY_DERIVATION_PATH="m/44'/60'/0'/0"
diff --git a/upgrade/src/upgradeBridgeOnForeign.js b/upgrade/src/upgradeBridgeOnForeign.js
index 437c53ca..82e01575 100644
--- a/upgrade/src/upgradeBridgeOnForeign.js
+++ b/upgrade/src/upgradeBridgeOnForeign.js
@@ -1,7 +1,8 @@
 require('dotenv').config()
 const Web3 = require('web3')
 const TrezorWalletProvider = require('trezor-cli-wallet-provider')
-const proxyAbi = require('../../build/contracts/EternalStorageProxy').abi
+const proxyAbi = require('../../artifacts/contracts/upgradeability/EternalStorageProxy.sol/EternalStorageProxy.json')
+  .abi
 
 const {
   FOREIGN_RPC_URL,
@@ -17,7 +18,8 @@ const {
 
 const foreignProvider = new TrezorWalletProvider(FOREIGN_RPC_URL, {
   chainId: FOREIGN_CHAIN_ID,
-  derivationPathPrefix: FOREIGN_KEY_DERIVATION_PATH
+  derivationPathPrefix: FOREIGN_KEY_DERIVATION_PATH,
+  numberOfAccounts: 5
 })
 const web3 = new Web3(foreignProvider)
 
@@ -36,7 +38,7 @@ const upgradeBridgeOnForeign = async () => {
       )
     }
 
-    console.log(`Attempting upgrade to ${FOREIGN_NEW_VERSION}`)
+    console.log(`Attempting upgrade to ${FOREIGN_NEW_VERSION} (${NEW_FOREIGN_BRIDGE_MEDIATOR_IMPLEMENTATION})`)
     console.log('Sending upgrade transaction from', FOREIGN_DEPLOYMENT_ACCOUNT_ADDRESS)
 
     const upgradeCall = proxy.methods.upgradeTo(FOREIGN_NEW_VERSION, NEW_FOREIGN_BRIDGE_MEDIATOR_IMPLEMENTATION)
diff --git a/upgrade/src/upgradeBridgeOnHome.js b/upgrade/src/upgradeBridgeOnHome.js
index 671066de..3fe43cdb 100644
--- a/upgrade/src/upgradeBridgeOnHome.js
+++ b/upgrade/src/upgradeBridgeOnHome.js
@@ -1,7 +1,8 @@
 require('dotenv').config()
 const Web3 = require('web3')
 const TrezorWalletProvider = require('trezor-cli-wallet-provider')
-const proxyAbi = require('../../build/contracts/EternalStorageProxy').abi
+const proxyAbi = require('../../artifacts/contracts/upgradeability/EternalStorageProxy.sol/EternalStorageProxy.json')
+  .abi
 
 const {
   HOME_RPC_URL,
@@ -17,7 +18,8 @@ const {
 
 const homeProvider = new TrezorWalletProvider(HOME_RPC_URL, {
   chainId: HOME_CHAIN_ID,
-  derivationPathPrefix: HOME_KEY_DERIVATION_PATH
+  derivationPathPrefix: HOME_KEY_DERIVATION_PATH,
+  numberOfAccounts: 5
 })
 const web3 = new Web3(homeProvider)
 
@@ -36,7 +38,7 @@ const upgradeBridgeOnHome = async () => {
       )
     }
 
-    console.log(`Attempting upgrade to ${HOME_NEW_VERSION}`)
+    console.log(`Attempting upgrade to ${HOME_NEW_VERSION} (${NEW_HOME_BRIDGE_MEDIATOR_IMPLEMENTATION})`)
     console.log('Sending upgrade transaction from', HOME_DEPLOYMENT_ACCOUNT_ADDRESS)
 
     const upgradeCall = proxy.methods.upgradeTo(HOME_NEW_VERSION, NEW_HOME_BRIDGE_MEDIATOR_IMPLEMENTATION)
diff --git a/yarn.lock b/yarn.lock
index f2b33522..79e46a02 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -271,6 +271,21 @@
     "@ethersproject/properties" "^5.0.3"
     "@ethersproject/strings" "^5.0.4"
 
+"@ethersproject/abi@5.6.4", "@ethersproject/abi@^5.6.3":
+  version "5.6.4"
+  resolved "https://registry.yarnpkg.com/@ethersproject/abi/-/abi-5.6.4.tgz#f6e01b6ed391a505932698ecc0d9e7a99ee60362"
+  integrity sha512-TTeZUlCeIHG6527/2goZA6gW5F8Emoc7MrZDC7hhP84aRGvW3TEdTnZR08Ls88YXM1m2SuK42Osw/jSi3uO8gg==
+  dependencies:
+    "@ethersproject/address" "^5.6.1"
+    "@ethersproject/bignumber" "^5.6.2"
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/constants" "^5.6.1"
+    "@ethersproject/hash" "^5.6.1"
+    "@ethersproject/keccak256" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+    "@ethersproject/properties" "^5.6.0"
+    "@ethersproject/strings" "^5.6.1"
+
 "@ethersproject/abi@^5.0.0-beta.146", "@ethersproject/abi@^5.1.2":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/abi/-/abi-5.6.0.tgz#ea07cbc1eec2374d32485679c12408005895e9f3"
@@ -286,6 +301,19 @@
     "@ethersproject/properties" "^5.6.0"
     "@ethersproject/strings" "^5.6.0"
 
+"@ethersproject/abstract-provider@5.6.1", "@ethersproject/abstract-provider@^5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/abstract-provider/-/abstract-provider-5.6.1.tgz#02ddce150785caf0c77fe036a0ebfcee61878c59"
+  integrity sha512-BxlIgogYJtp1FS8Muvj8YfdClk3unZH0vRMVX791Z9INBNT/kuACZ9GzaY1Y4yFq+YSy6/w4gzj3HCRKrK9hsQ==
+  dependencies:
+    "@ethersproject/bignumber" "^5.6.2"
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+    "@ethersproject/networks" "^5.6.3"
+    "@ethersproject/properties" "^5.6.0"
+    "@ethersproject/transactions" "^5.6.2"
+    "@ethersproject/web" "^5.6.1"
+
 "@ethersproject/abstract-provider@^5.6.0":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/abstract-provider/-/abstract-provider-5.6.0.tgz#0c4ac7054650dbd9c476cf5907f588bbb6ef3061"
@@ -299,6 +327,17 @@
     "@ethersproject/transactions" "^5.6.0"
     "@ethersproject/web" "^5.6.0"
 
+"@ethersproject/abstract-signer@5.6.2", "@ethersproject/abstract-signer@^5.6.2":
+  version "5.6.2"
+  resolved "https://registry.yarnpkg.com/@ethersproject/abstract-signer/-/abstract-signer-5.6.2.tgz#491f07fc2cbd5da258f46ec539664713950b0b33"
+  integrity sha512-n1r6lttFBG0t2vNiI3HoWaS/KdOt8xyDjzlP2cuevlWLG6EX0OwcKLyG/Kp/cuwNxdy/ous+R/DEMdTUwWQIjQ==
+  dependencies:
+    "@ethersproject/abstract-provider" "^5.6.1"
+    "@ethersproject/bignumber" "^5.6.2"
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+    "@ethersproject/properties" "^5.6.0"
+
 "@ethersproject/abstract-signer@^5.6.0":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/abstract-signer/-/abstract-signer-5.6.0.tgz#9cd7ae9211c2b123a3b29bf47aab17d4d016e3e7"
@@ -310,6 +349,17 @@
     "@ethersproject/logger" "^5.6.0"
     "@ethersproject/properties" "^5.6.0"
 
+"@ethersproject/address@5.6.1", "@ethersproject/address@^5.0.2", "@ethersproject/address@^5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/address/-/address-5.6.1.tgz#ab57818d9aefee919c5721d28cd31fd95eff413d"
+  integrity sha512-uOgF0kS5MJv9ZvCz7x6T2EXJSzotiybApn4XlOgoTX0xdtyVIJ7pF+6cGPxiEq/dpBiTfMiw7Yc81JcwhSYA0Q==
+  dependencies:
+    "@ethersproject/bignumber" "^5.6.2"
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/keccak256" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+    "@ethersproject/rlp" "^5.6.1"
+
 "@ethersproject/address@^5.0.4", "@ethersproject/address@^5.6.0":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/address/-/address-5.6.0.tgz#13c49836d73e7885fc148ad633afad729da25012"
@@ -321,6 +371,13 @@
     "@ethersproject/logger" "^5.6.0"
     "@ethersproject/rlp" "^5.6.0"
 
+"@ethersproject/base64@5.6.1", "@ethersproject/base64@^5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/base64/-/base64-5.6.1.tgz#2c40d8a0310c9d1606c2c37ae3092634b41d87cb"
+  integrity sha512-qB76rjop6a0RIYYMiB4Eh/8n+Hxu2NIZm8S/Q7kNo5pmZfXhHGHmS4MinUainiBC54SCyRnwzL+KZjj8zbsSsw==
+  dependencies:
+    "@ethersproject/bytes" "^5.6.1"
+
 "@ethersproject/base64@^5.6.0":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/base64/-/base64-5.6.0.tgz#a12c4da2a6fb86d88563216b0282308fc15907c9"
@@ -328,6 +385,23 @@
   dependencies:
     "@ethersproject/bytes" "^5.6.0"
 
+"@ethersproject/basex@5.6.1", "@ethersproject/basex@^5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/basex/-/basex-5.6.1.tgz#badbb2f1d4a6f52ce41c9064f01eab19cc4c5305"
+  integrity sha512-a52MkVz4vuBXR06nvflPMotld1FJWSj2QT0985v7P/emPZO00PucFAkbcmq2vpVU7Ts7umKiSI6SppiLykVWsA==
+  dependencies:
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/properties" "^5.6.0"
+
+"@ethersproject/bignumber@5.6.2", "@ethersproject/bignumber@^5.6.2":
+  version "5.6.2"
+  resolved "https://registry.yarnpkg.com/@ethersproject/bignumber/-/bignumber-5.6.2.tgz#72a0717d6163fab44c47bcc82e0c550ac0315d66"
+  integrity sha512-v7+EEUbhGqT3XJ9LMPsKvXYHFc8eHxTowFCG/HgJErmq4XHJ2WR7aeyICg3uTOAQ7Icn0GFHAohXEhxQHq4Ubw==
+  dependencies:
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+    bn.js "^5.2.1"
+
 "@ethersproject/bignumber@^5.0.7", "@ethersproject/bignumber@^5.6.0":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/bignumber/-/bignumber-5.6.0.tgz#116c81b075c57fa765a8f3822648cf718a8a0e26"
@@ -337,6 +411,13 @@
     "@ethersproject/logger" "^5.6.0"
     bn.js "^4.11.9"
 
+"@ethersproject/bytes@5.6.1", "@ethersproject/bytes@^5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/bytes/-/bytes-5.6.1.tgz#24f916e411f82a8a60412344bf4a813b917eefe7"
+  integrity sha512-NwQt7cKn5+ZE4uDn+X5RAXLp46E1chXoaMmrxAyA0rblpxz8t58lVkrHXoRIn0lz1joQElQ8410GqhTqMOwc6g==
+  dependencies:
+    "@ethersproject/logger" "^5.6.0"
+
 "@ethersproject/bytes@^5.0.4", "@ethersproject/bytes@^5.6.0":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/bytes/-/bytes-5.6.0.tgz#81652f2a0e04533575befadce555213c11d8aa20"
@@ -344,6 +425,13 @@
   dependencies:
     "@ethersproject/logger" "^5.6.0"
 
+"@ethersproject/constants@5.6.1", "@ethersproject/constants@^5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/constants/-/constants-5.6.1.tgz#e2e974cac160dd101cf79fdf879d7d18e8cb1370"
+  integrity sha512-QSq9WVnZbxXYFftrjSjZDUshp6/eKp6qrtdBtUCm0QxCV5z1fG/w3kdlcsjMCQuQHUnAclKoK7XpXMezhRDOLg==
+  dependencies:
+    "@ethersproject/bignumber" "^5.6.2"
+
 "@ethersproject/constants@^5.0.4", "@ethersproject/constants@^5.6.0":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/constants/-/constants-5.6.0.tgz#55e3eb0918584d3acc0688e9958b0cedef297088"
@@ -351,6 +439,36 @@
   dependencies:
     "@ethersproject/bignumber" "^5.6.0"
 
+"@ethersproject/contracts@5.6.2":
+  version "5.6.2"
+  resolved "https://registry.yarnpkg.com/@ethersproject/contracts/-/contracts-5.6.2.tgz#20b52e69ebc1b74274ff8e3d4e508de971c287bc"
+  integrity sha512-hguUA57BIKi6WY0kHvZp6PwPlWF87MCeB4B7Z7AbUpTxfFXFdn/3b0GmjZPagIHS+3yhcBJDnuEfU4Xz+Ks/8g==
+  dependencies:
+    "@ethersproject/abi" "^5.6.3"
+    "@ethersproject/abstract-provider" "^5.6.1"
+    "@ethersproject/abstract-signer" "^5.6.2"
+    "@ethersproject/address" "^5.6.1"
+    "@ethersproject/bignumber" "^5.6.2"
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/constants" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+    "@ethersproject/properties" "^5.6.0"
+    "@ethersproject/transactions" "^5.6.2"
+
+"@ethersproject/hash@5.6.1", "@ethersproject/hash@^5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/hash/-/hash-5.6.1.tgz#224572ea4de257f05b4abf8ae58b03a67e99b0f4"
+  integrity sha512-L1xAHurbaxG8VVul4ankNX5HgQ8PNCTrnVXEiFnE9xoRnaUcgfD12tZINtDinSllxPLCtGwguQxJ5E6keE84pA==
+  dependencies:
+    "@ethersproject/abstract-signer" "^5.6.2"
+    "@ethersproject/address" "^5.6.1"
+    "@ethersproject/bignumber" "^5.6.2"
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/keccak256" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+    "@ethersproject/properties" "^5.6.0"
+    "@ethersproject/strings" "^5.6.1"
+
 "@ethersproject/hash@^5.0.4", "@ethersproject/hash@^5.6.0":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/hash/-/hash-5.6.0.tgz#d24446a5263e02492f9808baa99b6e2b4c3429a2"
@@ -365,6 +483,51 @@
     "@ethersproject/properties" "^5.6.0"
     "@ethersproject/strings" "^5.6.0"
 
+"@ethersproject/hdnode@5.6.2", "@ethersproject/hdnode@^5.6.2":
+  version "5.6.2"
+  resolved "https://registry.yarnpkg.com/@ethersproject/hdnode/-/hdnode-5.6.2.tgz#26f3c83a3e8f1b7985c15d1db50dc2903418b2d2"
+  integrity sha512-tERxW8Ccf9CxW2db3WsN01Qao3wFeRsfYY9TCuhmG0xNpl2IO8wgXU3HtWIZ49gUWPggRy4Yg5axU0ACaEKf1Q==
+  dependencies:
+    "@ethersproject/abstract-signer" "^5.6.2"
+    "@ethersproject/basex" "^5.6.1"
+    "@ethersproject/bignumber" "^5.6.2"
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+    "@ethersproject/pbkdf2" "^5.6.1"
+    "@ethersproject/properties" "^5.6.0"
+    "@ethersproject/sha2" "^5.6.1"
+    "@ethersproject/signing-key" "^5.6.2"
+    "@ethersproject/strings" "^5.6.1"
+    "@ethersproject/transactions" "^5.6.2"
+    "@ethersproject/wordlists" "^5.6.1"
+
+"@ethersproject/json-wallets@5.6.1", "@ethersproject/json-wallets@^5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/json-wallets/-/json-wallets-5.6.1.tgz#3f06ba555c9c0d7da46756a12ac53483fe18dd91"
+  integrity sha512-KfyJ6Zwz3kGeX25nLihPwZYlDqamO6pfGKNnVMWWfEVVp42lTfCZVXXy5Ie8IZTN0HKwAngpIPi7gk4IJzgmqQ==
+  dependencies:
+    "@ethersproject/abstract-signer" "^5.6.2"
+    "@ethersproject/address" "^5.6.1"
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/hdnode" "^5.6.2"
+    "@ethersproject/keccak256" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+    "@ethersproject/pbkdf2" "^5.6.1"
+    "@ethersproject/properties" "^5.6.0"
+    "@ethersproject/random" "^5.6.1"
+    "@ethersproject/strings" "^5.6.1"
+    "@ethersproject/transactions" "^5.6.2"
+    aes-js "3.0.0"
+    scrypt-js "3.0.1"
+
+"@ethersproject/keccak256@5.6.1", "@ethersproject/keccak256@^5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/keccak256/-/keccak256-5.6.1.tgz#b867167c9b50ba1b1a92bccdd4f2d6bd168a91cc"
+  integrity sha512-bB7DQHCTRDooZZdL3lk9wpL0+XuG3XLGHLh3cePnybsO3V0rdCAOQGpn/0R3aODmnTOOkCATJiD2hnL+5bwthA==
+  dependencies:
+    "@ethersproject/bytes" "^5.6.1"
+    js-sha3 "0.8.0"
+
 "@ethersproject/keccak256@^5.0.3", "@ethersproject/keccak256@^5.6.0":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/keccak256/-/keccak256-5.6.0.tgz#fea4bb47dbf8f131c2e1774a1cecbfeb9d606459"
@@ -373,11 +536,18 @@
     "@ethersproject/bytes" "^5.6.0"
     js-sha3 "0.8.0"
 
-"@ethersproject/logger@^5.0.5", "@ethersproject/logger@^5.6.0":
+"@ethersproject/logger@5.6.0", "@ethersproject/logger@^5.0.5", "@ethersproject/logger@^5.6.0":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/logger/-/logger-5.6.0.tgz#d7db1bfcc22fd2e4ab574cba0bb6ad779a9a3e7a"
   integrity sha512-BiBWllUROH9w+P21RzoxJKzqoqpkyM1pRnEKG69bulE9TSQD8SAIvTQqIMZmmCO8pUNkgLP1wndX1gKghSpBmg==
 
+"@ethersproject/networks@5.6.4", "@ethersproject/networks@^5.6.3":
+  version "5.6.4"
+  resolved "https://registry.yarnpkg.com/@ethersproject/networks/-/networks-5.6.4.tgz#51296d8fec59e9627554f5a8a9c7791248c8dc07"
+  integrity sha512-KShHeHPahHI2UlWdtDMn2lJETcbtaJge4k7XSjDR9h79QTd6yQJmv6Cp2ZA4JdqWnhszAOLSuJEd9C0PRw7hSQ==
+  dependencies:
+    "@ethersproject/logger" "^5.6.0"
+
 "@ethersproject/networks@^5.6.0":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/networks/-/networks-5.6.0.tgz#486d03fff29b4b6b5414d47a232ded09fe10de5e"
@@ -385,13 +555,63 @@
   dependencies:
     "@ethersproject/logger" "^5.6.0"
 
-"@ethersproject/properties@^5.0.3", "@ethersproject/properties@^5.6.0":
+"@ethersproject/pbkdf2@5.6.1", "@ethersproject/pbkdf2@^5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/pbkdf2/-/pbkdf2-5.6.1.tgz#f462fe320b22c0d6b1d72a9920a3963b09eb82d1"
+  integrity sha512-k4gRQ+D93zDRPNUfmduNKq065uadC2YjMP/CqwwX5qG6R05f47boq6pLZtV/RnC4NZAYOPH1Cyo54q0c9sshRQ==
+  dependencies:
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/sha2" "^5.6.1"
+
+"@ethersproject/properties@5.6.0", "@ethersproject/properties@^5.0.3", "@ethersproject/properties@^5.6.0":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/properties/-/properties-5.6.0.tgz#38904651713bc6bdd5bdd1b0a4287ecda920fa04"
   integrity sha512-szoOkHskajKePTJSZ46uHUWWkbv7TzP2ypdEK6jGMqJaEt2sb0jCgfBo0gH0m2HBpRixMuJ6TBRaQCF7a9DoCg==
   dependencies:
     "@ethersproject/logger" "^5.6.0"
 
+"@ethersproject/providers@5.6.8":
+  version "5.6.8"
+  resolved "https://registry.yarnpkg.com/@ethersproject/providers/-/providers-5.6.8.tgz#22e6c57be215ba5545d3a46cf759d265bb4e879d"
+  integrity sha512-Wf+CseT/iOJjrGtAOf3ck9zS7AgPmr2fZ3N97r4+YXN3mBePTG2/bJ8DApl9mVwYL+RpYbNxMEkEp4mPGdwG/w==
+  dependencies:
+    "@ethersproject/abstract-provider" "^5.6.1"
+    "@ethersproject/abstract-signer" "^5.6.2"
+    "@ethersproject/address" "^5.6.1"
+    "@ethersproject/base64" "^5.6.1"
+    "@ethersproject/basex" "^5.6.1"
+    "@ethersproject/bignumber" "^5.6.2"
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/constants" "^5.6.1"
+    "@ethersproject/hash" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+    "@ethersproject/networks" "^5.6.3"
+    "@ethersproject/properties" "^5.6.0"
+    "@ethersproject/random" "^5.6.1"
+    "@ethersproject/rlp" "^5.6.1"
+    "@ethersproject/sha2" "^5.6.1"
+    "@ethersproject/strings" "^5.6.1"
+    "@ethersproject/transactions" "^5.6.2"
+    "@ethersproject/web" "^5.6.1"
+    bech32 "1.1.4"
+    ws "7.4.6"
+
+"@ethersproject/random@5.6.1", "@ethersproject/random@^5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/random/-/random-5.6.1.tgz#66915943981bcd3e11bbd43733f5c3ba5a790255"
+  integrity sha512-/wtPNHwbmng+5yi3fkipA8YBT59DdkGRoC2vWk09Dci/q5DlgnMkhIycjHlavrvrjJBkFjO/ueLyT+aUDfc4lA==
+  dependencies:
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+
+"@ethersproject/rlp@5.6.1", "@ethersproject/rlp@^5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/rlp/-/rlp-5.6.1.tgz#df8311e6f9f24dcb03d59a2bac457a28a4fe2bd8"
+  integrity sha512-uYjmcZx+DKlFUk7a5/W9aQVaoEC7+1MOBgNtvNg13+RnuUwT4F0zTovC0tmay5SmRslb29V1B7Y5KCri46WhuQ==
+  dependencies:
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+
 "@ethersproject/rlp@^5.6.0":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/rlp/-/rlp-5.6.0.tgz#55a7be01c6f5e64d6e6e7edb6061aa120962a717"
@@ -400,6 +620,27 @@
     "@ethersproject/bytes" "^5.6.0"
     "@ethersproject/logger" "^5.6.0"
 
+"@ethersproject/sha2@5.6.1", "@ethersproject/sha2@^5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/sha2/-/sha2-5.6.1.tgz#211f14d3f5da5301c8972a8827770b6fd3e51656"
+  integrity sha512-5K2GyqcW7G4Yo3uenHegbXRPDgARpWUiXc6RiF7b6i/HXUoWlb7uCARh7BAHg7/qT/Q5ydofNwiZcim9qpjB6g==
+  dependencies:
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+    hash.js "1.1.7"
+
+"@ethersproject/signing-key@5.6.2", "@ethersproject/signing-key@^5.6.2":
+  version "5.6.2"
+  resolved "https://registry.yarnpkg.com/@ethersproject/signing-key/-/signing-key-5.6.2.tgz#8a51b111e4d62e5a62aee1da1e088d12de0614a3"
+  integrity sha512-jVbu0RuP7EFpw82vHcL+GP35+KaNruVAZM90GxgQnGqB6crhBqW/ozBfFvdeImtmb4qPko0uxXjn8l9jpn0cwQ==
+  dependencies:
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+    "@ethersproject/properties" "^5.6.0"
+    bn.js "^5.2.1"
+    elliptic "6.5.4"
+    hash.js "1.1.7"
+
 "@ethersproject/signing-key@^5.6.0":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/signing-key/-/signing-key-5.6.0.tgz#4f02e3fb09e22b71e2e1d6dc4bcb5dafa69ce042"
@@ -412,6 +653,27 @@
     elliptic "6.5.4"
     hash.js "1.1.7"
 
+"@ethersproject/solidity@5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/solidity/-/solidity-5.6.1.tgz#5845e71182c66d32e6ec5eefd041fca091a473e2"
+  integrity sha512-KWqVLkUUoLBfL1iwdzUVlkNqAUIFMpbbeH0rgCfKmJp0vFtY4AsaN91gHKo9ZZLkC4UOm3cI3BmMV4N53BOq4g==
+  dependencies:
+    "@ethersproject/bignumber" "^5.6.2"
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/keccak256" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+    "@ethersproject/sha2" "^5.6.1"
+    "@ethersproject/strings" "^5.6.1"
+
+"@ethersproject/strings@5.6.1", "@ethersproject/strings@^5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/strings/-/strings-5.6.1.tgz#dbc1b7f901db822b5cafd4ebf01ca93c373f8952"
+  integrity sha512-2X1Lgk6Jyfg26MUnsHiT456U9ijxKUybz8IM1Vih+NJxYtXhmvKBcHOmvGqpFSVJ0nQ4ZCoIViR8XlRw1v/+Cw==
+  dependencies:
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/constants" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+
 "@ethersproject/strings@^5.0.4", "@ethersproject/strings@^5.6.0":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/strings/-/strings-5.6.0.tgz#9891b26709153d996bf1303d39a7f4bc047878fd"
@@ -421,6 +683,21 @@
     "@ethersproject/constants" "^5.6.0"
     "@ethersproject/logger" "^5.6.0"
 
+"@ethersproject/transactions@5.6.2", "@ethersproject/transactions@^5.6.2":
+  version "5.6.2"
+  resolved "https://registry.yarnpkg.com/@ethersproject/transactions/-/transactions-5.6.2.tgz#793a774c01ced9fe7073985bb95a4b4e57a6370b"
+  integrity sha512-BuV63IRPHmJvthNkkt9G70Ullx6AcM+SDc+a8Aw/8Yew6YwT51TcBKEp1P4oOQ/bP25I18JJr7rcFRgFtU9B2Q==
+  dependencies:
+    "@ethersproject/address" "^5.6.1"
+    "@ethersproject/bignumber" "^5.6.2"
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/constants" "^5.6.1"
+    "@ethersproject/keccak256" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+    "@ethersproject/properties" "^5.6.0"
+    "@ethersproject/rlp" "^5.6.1"
+    "@ethersproject/signing-key" "^5.6.2"
+
 "@ethersproject/transactions@^5.0.0-beta.135", "@ethersproject/transactions@^5.6.0":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/transactions/-/transactions-5.6.0.tgz#4b594d73a868ef6e1529a2f8f94a785e6791ae4e"
@@ -436,6 +713,47 @@
     "@ethersproject/rlp" "^5.6.0"
     "@ethersproject/signing-key" "^5.6.0"
 
+"@ethersproject/units@5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/units/-/units-5.6.1.tgz#ecc590d16d37c8f9ef4e89e2005bda7ddc6a4e6f"
+  integrity sha512-rEfSEvMQ7obcx3KWD5EWWx77gqv54K6BKiZzKxkQJqtpriVsICrktIQmKl8ReNToPeIYPnFHpXvKpi068YFZXw==
+  dependencies:
+    "@ethersproject/bignumber" "^5.6.2"
+    "@ethersproject/constants" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+
+"@ethersproject/wallet@5.6.2":
+  version "5.6.2"
+  resolved "https://registry.yarnpkg.com/@ethersproject/wallet/-/wallet-5.6.2.tgz#cd61429d1e934681e413f4bc847a5f2f87e3a03c"
+  integrity sha512-lrgh0FDQPuOnHcF80Q3gHYsSUODp6aJLAdDmDV0xKCN/T7D99ta1jGVhulg3PY8wiXEngD0DfM0I2XKXlrqJfg==
+  dependencies:
+    "@ethersproject/abstract-provider" "^5.6.1"
+    "@ethersproject/abstract-signer" "^5.6.2"
+    "@ethersproject/address" "^5.6.1"
+    "@ethersproject/bignumber" "^5.6.2"
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/hash" "^5.6.1"
+    "@ethersproject/hdnode" "^5.6.2"
+    "@ethersproject/json-wallets" "^5.6.1"
+    "@ethersproject/keccak256" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+    "@ethersproject/properties" "^5.6.0"
+    "@ethersproject/random" "^5.6.1"
+    "@ethersproject/signing-key" "^5.6.2"
+    "@ethersproject/transactions" "^5.6.2"
+    "@ethersproject/wordlists" "^5.6.1"
+
+"@ethersproject/web@5.6.1", "@ethersproject/web@^5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/web/-/web-5.6.1.tgz#6e2bd3ebadd033e6fe57d072db2b69ad2c9bdf5d"
+  integrity sha512-/vSyzaQlNXkO1WV+RneYKqCJwualcUdx/Z3gseVovZP0wIlOFcCE1hkRhKBH8ImKbGQbMl9EAAyJFrJu7V0aqA==
+  dependencies:
+    "@ethersproject/base64" "^5.6.1"
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+    "@ethersproject/properties" "^5.6.0"
+    "@ethersproject/strings" "^5.6.1"
+
 "@ethersproject/web@^5.6.0":
   version "5.6.0"
   resolved "https://registry.yarnpkg.com/@ethersproject/web/-/web-5.6.0.tgz#4bf8b3cbc17055027e1a5dd3c357e37474eaaeb8"
@@ -447,6 +765,17 @@
     "@ethersproject/properties" "^5.6.0"
     "@ethersproject/strings" "^5.6.0"
 
+"@ethersproject/wordlists@5.6.1", "@ethersproject/wordlists@^5.6.1":
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/@ethersproject/wordlists/-/wordlists-5.6.1.tgz#1e78e2740a8a21e9e99947e47979d72e130aeda1"
+  integrity sha512-wiPRgBpNbNwCQFoCr8bcWO8o5I810cqO6mkdtKfLKFlLxeCWcnzDi4Alu8iyNzlhYuS9npCwivMbRWF19dyblw==
+  dependencies:
+    "@ethersproject/bytes" "^5.6.1"
+    "@ethersproject/hash" "^5.6.1"
+    "@ethersproject/logger" "^5.6.0"
+    "@ethersproject/properties" "^5.6.0"
+    "@ethersproject/strings" "^5.6.1"
+
 "@humanwhocodes/config-array@^0.9.2":
   version "0.9.5"
   resolved "https://registry.yarnpkg.com/@humanwhocodes/config-array/-/config-array-0.9.5.tgz#2cbaf9a89460da24b5ca6531b8bbfc23e1df50c7"
@@ -498,6 +827,22 @@
     "@nodelib/fs.scandir" "2.1.5"
     fastq "^1.6.0"
 
+"@nomiclabs/hardhat-etherscan@^3.1.0":
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/@nomiclabs/hardhat-etherscan/-/hardhat-etherscan-3.1.0.tgz#7137554862b3b1c914f1b1bf110f0529fd2dec53"
+  integrity sha512-JroYgfN1AlYFkQTQ3nRwFi4o8NtZF7K/qFR2dxDUgHbCtIagkUseca9L4E/D2ScUm4XT40+8PbCdqZi+XmHyQA==
+  dependencies:
+    "@ethersproject/abi" "^5.1.2"
+    "@ethersproject/address" "^5.0.2"
+    cbor "^5.0.2"
+    chalk "^2.4.2"
+    debug "^4.1.1"
+    fs-extra "^7.0.1"
+    lodash "^4.17.11"
+    semver "^6.3.0"
+    table "^6.8.0"
+    undici "^5.4.0"
+
 "@nomiclabs/hardhat-truffle5@^2.0.5":
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/@nomiclabs/hardhat-truffle5/-/hardhat-truffle5-2.0.5.tgz#28a4c33a0ebbca3e48f50e12824a3a94ed557916"
@@ -1078,6 +1423,16 @@ ajv@^6.10.0, ajv@^6.10.2, ajv@^6.12.3, ajv@^6.12.4, ajv@^6.6.1, ajv@^6.9.1:
     json-schema-traverse "^0.4.1"
     uri-js "^4.2.2"
 
+ajv@^8.0.1:
+  version "8.11.0"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-8.11.0.tgz#977e91dd96ca669f54a11e23e378e33b884a565f"
+  integrity sha512-wGgprdCvMalC0BztXvitD2hC04YffAvtsUn93JbGXYLAtCUO4xd17mCCZQxUOItiBwZvJScWo8NIvQMQ71rdpg==
+  dependencies:
+    fast-deep-equal "^3.1.1"
+    json-schema-traverse "^1.0.0"
+    require-from-string "^2.0.2"
+    uri-js "^4.2.2"
+
 amdefine@>=0.0.4:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/amdefine/-/amdefine-1.0.1.tgz#4a5282ac164729e93619bcfd3ad151f817ce91f5"
@@ -1259,6 +1614,11 @@ astral-regex@^1.0.0:
   resolved "https://registry.yarnpkg.com/astral-regex/-/astral-regex-1.0.0.tgz#6c8c3fb827dd43ee3918f27b82782ab7658a6fd9"
   integrity sha512-+Ryf6g3BKoRc7jfp7ad8tM4TtMiaWvbF/1/sQcZPkkS7ag3D5nMBCe2UfOTONtAkaG0tO0ij3C5Lwmf1EiyjHg==
 
+astral-regex@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/astral-regex/-/astral-regex-2.0.0.tgz#483143c567aeed4785759c0865786dc77d7d2e31"
+  integrity sha512-Z7tMw1ytTXt5jqMcOP+OQteU1VuNK9Y02uuJtKQ1Sv69jXQKKg5cibLwGJow8yzZP+eAc18EmLGPal0bp36rvQ==
+
 async-eventemitter@^0.2.2, async-eventemitter@^0.2.4:
   version "0.2.4"
   resolved "https://registry.yarnpkg.com/async-eventemitter/-/async-eventemitter-0.2.4.tgz#f5e7c8ca7d3e46aab9ec40a292baf686a0bafaca"
@@ -1377,12 +1737,17 @@ bcrypt-pbkdf@^1.0.0:
   dependencies:
     tweetnacl "^0.14.3"
 
+bech32@1.1.4:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/bech32/-/bech32-1.1.4.tgz#e38c9f37bf179b8eb16ae3a772b40c356d4832e9"
+  integrity sha512-s0IrSOzLlbvX7yp4WBfPITzpAU8sqQcpsmwXDiKwrG4r491vwCO/XpejasRNl0piBMe/DvP4Tz0mIS/X1DPJBQ==
+
 big.js@^5.2.2:
   version "5.2.2"
   resolved "https://registry.yarnpkg.com/big.js/-/big.js-5.2.2.tgz#65f0af382f578bcdc742bd9c281e9cb2d7768328"
   integrity sha512-vyL2OymJxmarO8gxMr0mhChsO9QGwhynfuu4+MHTAW6czfq9humCB7rKpUjDd9YUiDPU4mzpyupFSvOClAwbmQ==
 
-bignumber.js@*, bignumber.js@^9.0.0:
+bignumber.js@*, bignumber.js@^9.0.0, bignumber.js@^9.0.1:
   version "9.0.2"
   resolved "https://registry.yarnpkg.com/bignumber.js/-/bignumber.js-9.0.2.tgz#71c6c6bed38de64e24a65ebe16cfcf23ae693673"
   integrity sha512-GAcQvbpsM0pUb0zw1EI0KhQEZ+lRwR5fYaAp3vPOYuP7aDvGy6cVN6XHLauvF8SOga2y0dcLcjt3iQDTSEliyw==
@@ -1441,6 +1806,11 @@ bn.js@^5.0.0, bn.js@^5.1.1, bn.js@^5.1.2, bn.js@^5.1.3, bn.js@^5.2.0:
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-5.2.0.tgz#358860674396c6997771a9d051fcc1b57d4ae002"
   integrity sha512-D7iWRBvnZE8ecXiLj/9wbxH7Tk79fAh8IHaTNq1RWRixsS02W+5qS+iE9yq6RYl0asXx5tw0bLhmT5pIfbSquw==
 
+bn.js@^5.2.1:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-5.2.1.tgz#0bc527a6a0d18d0aa8d5b0538ce4a77dccfa7b70"
+  integrity sha512-eXRvHzWyYPBuB4NBy0cmYQjGitUrtqwbvlzP3G6VFnNRbsZQIxQ10PbKKHt8gZ/HW/D/747aDl+QkDqg3KQLMQ==
+
 body-parser@1.19.2, body-parser@^1.16.0:
   version "1.19.2"
   resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.19.2.tgz#4714ccd9c157d44797b8b5607d72c0b89952f26e"
@@ -1732,6 +2102,14 @@ catering@^2.0.0, catering@^2.1.0:
   resolved "https://registry.yarnpkg.com/catering/-/catering-2.1.1.tgz#66acba06ed5ee28d5286133982a927de9a04b510"
   integrity sha512-K7Qy8O9p76sL3/3m7/zLKbRkyOlSZAgzEaLhyj2mXS8PsCud2Eo4hAb8aLtZqHh0QGqLcb9dlJSu6lHRVENm1w==
 
+cbor@^5.0.2:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/cbor/-/cbor-5.2.0.tgz#4cca67783ccd6de7b50ab4ed62636712f287a67c"
+  integrity sha512-5IMhi9e1QU76ppa5/ajP1BmMWZ2FHkhAhjeVKQ/EFCgYSEaeVaoGtL7cxJskf9oCCk+XjzaIdc3IuU/dbA/o2A==
+  dependencies:
+    bignumber.js "^9.0.1"
+    nofilter "^1.0.4"
+
 chai-as-promised@^7.1.1:
   version "7.1.1"
   resolved "https://registry.yarnpkg.com/chai-as-promised/-/chai-as-promised-7.1.1.tgz#08645d825deb8696ee61725dbf590c012eb00ca0"
@@ -3407,6 +3785,42 @@ ethers@^4.0.0-beta.1, ethers@^4.0.32, ethers@^4.0.40:
     uuid "2.0.1"
     xmlhttprequest "1.8.0"
 
+ethers@^5.6.1:
+  version "5.6.9"
+  resolved "https://registry.yarnpkg.com/ethers/-/ethers-5.6.9.tgz#4e12f8dfcb67b88ae7a78a9519b384c23c576a4d"
+  integrity sha512-lMGC2zv9HC5EC+8r429WaWu3uWJUCgUCt8xxKCFqkrFuBDZXDYIdzDUECxzjf2BMF8IVBByY1EBoGSL3RTm8RA==
+  dependencies:
+    "@ethersproject/abi" "5.6.4"
+    "@ethersproject/abstract-provider" "5.6.1"
+    "@ethersproject/abstract-signer" "5.6.2"
+    "@ethersproject/address" "5.6.1"
+    "@ethersproject/base64" "5.6.1"
+    "@ethersproject/basex" "5.6.1"
+    "@ethersproject/bignumber" "5.6.2"
+    "@ethersproject/bytes" "5.6.1"
+    "@ethersproject/constants" "5.6.1"
+    "@ethersproject/contracts" "5.6.2"
+    "@ethersproject/hash" "5.6.1"
+    "@ethersproject/hdnode" "5.6.2"
+    "@ethersproject/json-wallets" "5.6.1"
+    "@ethersproject/keccak256" "5.6.1"
+    "@ethersproject/logger" "5.6.0"
+    "@ethersproject/networks" "5.6.4"
+    "@ethersproject/pbkdf2" "5.6.1"
+    "@ethersproject/properties" "5.6.0"
+    "@ethersproject/providers" "5.6.8"
+    "@ethersproject/random" "5.6.1"
+    "@ethersproject/rlp" "5.6.1"
+    "@ethersproject/sha2" "5.6.1"
+    "@ethersproject/signing-key" "5.6.2"
+    "@ethersproject/solidity" "5.6.1"
+    "@ethersproject/strings" "5.6.1"
+    "@ethersproject/transactions" "5.6.2"
+    "@ethersproject/units" "5.6.1"
+    "@ethersproject/wallet" "5.6.2"
+    "@ethersproject/web" "5.6.1"
+    "@ethersproject/wordlists" "5.6.1"
+
 ethjs-unit@0.1.6:
   version "0.1.6"
   resolved "https://registry.yarnpkg.com/ethjs-unit/-/ethjs-unit-0.1.6.tgz#c665921e476e87bce2a9d588a6fe0405b2c41699"
@@ -4098,6 +4512,13 @@ hardhat-gas-reporter@^1.0.8:
     eth-gas-reporter "^0.2.24"
     sha1 "^1.1.1"
 
+hardhat-tracer@^1.1.0-rc.6:
+  version "1.1.0-rc.6"
+  resolved "https://registry.yarnpkg.com/hardhat-tracer/-/hardhat-tracer-1.1.0-rc.6.tgz#963f9058a2e1ca7f1dac19d8b00ab2c2e556a1f4"
+  integrity sha512-u1d8YpyYBCj/7xVMPDxsx+H1gBaothk/XNLeTYuEmxC6WmVMEwVjpdnmTYZiRQ2ntUfwSIjwKhDkLOqewBqaQA==
+  dependencies:
+    ethers "^5.6.1"
+
 hardhat@^2.9.1:
   version "2.9.1"
   resolved "https://registry.yarnpkg.com/hardhat/-/hardhat-2.9.1.tgz#f69f82bb4d98e28744584779483caa7c5cfbde8b"
@@ -4870,6 +5291,11 @@ json-schema-traverse@^0.4.1:
   resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz#69f6a87d9513ab8bb8fe63bdb0979c448e684660"
   integrity sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg==
 
+json-schema-traverse@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz#ae7bcb3656ab77a73ba5c49bf654f38e6b6860e2"
+  integrity sha512-NM8/P9n3XjXhIZn1lLhkFaACTOURQXjWhV4BA/RnOv8xvgqtqpAX9IO4mRQxSx1Rlo4tqzeqb0sOlruaOy3dug==
+
 json-schema@0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/json-schema/-/json-schema-0.4.0.tgz#f7de4cf6efab838ebaeb3236474cbba5a1930ab5"
@@ -5219,6 +5645,11 @@ lodash.sum@^4.0.2:
   resolved "https://registry.yarnpkg.com/lodash.sum/-/lodash.sum-4.0.2.tgz#ad90e397965d803d4f1ff7aa5b2d0197f3b4637b"
   integrity sha1-rZDjl5ZdgD1PH/eqWy0Bl/O0Y3s=
 
+lodash.truncate@^4.4.2:
+  version "4.4.2"
+  resolved "https://registry.yarnpkg.com/lodash.truncate/-/lodash.truncate-4.4.2.tgz#5a350da0b1113b837ecfffd5812cbe58d6eae193"
+  integrity sha512-jttmRe7bRse52OsWIMDLaXxWqRAmtIUccAQ3garviCqJjafXOfNMO0yMfNpdD6zbGaTU0P5Nz7e7gAT6cKmJRw==
+
 lodash@^4.17.11, lodash@^4.17.12, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.19, lodash@^4.17.21:
   version "4.17.21"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
@@ -5761,6 +6192,11 @@ nodemon@^2.0.15:
     undefsafe "^2.0.5"
     update-notifier "^5.1.0"
 
+nofilter@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/nofilter/-/nofilter-1.0.4.tgz#78d6f4b6a613e7ced8b015cec534625f7667006e"
+  integrity sha512-N8lidFp+fCz+TD51+haYdbDGrcBWwuHX40F5+z0qkUjMJ5Tp+rdSuAkMJ9N9eoolDlEVTf6u5icM+cNKkKW2mA==
+
 nopt@3.x:
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/nopt/-/nopt-3.0.6.tgz#c6465dbf08abcd4db359317f79ac68a646b28ff9"
@@ -6579,7 +7015,7 @@ 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@^2.0.0:
+require-from-string@^2.0.0, require-from-string@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/require-from-string/-/require-from-string-2.0.2.tgz#89a7fdd938261267318eafe14f9c32e598c36909"
   integrity sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==
@@ -6752,7 +7188,7 @@ scrypt-js@2.0.4:
   resolved "https://registry.yarnpkg.com/scrypt-js/-/scrypt-js-2.0.4.tgz#32f8c5149f0797672e551c07e230f834b6af5f16"
   integrity sha512-4KsaGcPnuhtCZQCxFxN3GVYIhKFPTdLd8PLC552XwbMndtD0cjRFAhDuuydXQ0h08ZfPgzqe6EKHozpuH74iDw==
 
-scrypt-js@^3.0.0, scrypt-js@^3.0.1:
+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"
   integrity sha512-cdwTTnqPu0Hyvf5in5asVdZocVDTNRmR7XEcJuIzMjJeSHybHl7vpB66AzwTaIg6CLSbtjcxc8fqcySfnTkccA==
@@ -6996,6 +7432,15 @@ slice-ansi@^2.1.0:
     astral-regex "^1.0.0"
     is-fullwidth-code-point "^2.0.0"
 
+slice-ansi@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-4.0.0.tgz#500e8dd0fd55b05815086255b3195adf2a45fe6b"
+  integrity sha512-qMCMfhY040cVHT43K9BFygqYbUPFZKHOg7K73mtTWJRb8pyP3fzf4Ixd5SzdEJQ6MRUg/WBnOLxghZtKKurENQ==
+  dependencies:
+    ansi-styles "^4.0.0"
+    astral-regex "^2.0.0"
+    is-fullwidth-code-point "^3.0.0"
+
 solc@0.7.3:
   version "0.7.3"
   resolved "https://registry.yarnpkg.com/solc/-/solc-0.7.3.tgz#04646961bd867a744f63d2b4e3c0701ffdc7d78a"
@@ -7158,7 +7603,7 @@ string-width@^3.0.0, string-width@^3.1.0:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^5.1.0"
 
-string-width@^4.0.0, string-width@^4.1.0, string-width@^4.2.0, string-width@^4.2.2:
+string-width@^4.0.0, string-width@^4.1.0, string-width@^4.2.0, string-width@^4.2.2, string-width@^4.2.3:
   version "4.2.3"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-4.2.3.tgz#269c7117d27b05ad2e536830a8ec895ef9c6d010"
   integrity sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==
@@ -7338,6 +7783,17 @@ table@^5.2.3:
     slice-ansi "^2.1.0"
     string-width "^3.0.0"
 
+table@^6.8.0:
+  version "6.8.0"
+  resolved "https://registry.yarnpkg.com/table/-/table-6.8.0.tgz#87e28f14fa4321c3377ba286f07b79b281a3b3ca"
+  integrity sha512-s/fitrbVeEyHKFa7mFdkuQMWlH1Wgw/yEXMt5xACT4ZpzWFluehAxRtUUQKPuWhaLAWhFcVx6w3oC8VKaUfPGA==
+  dependencies:
+    ajv "^8.0.1"
+    lodash.truncate "^4.4.2"
+    slice-ansi "^4.0.0"
+    string-width "^4.2.3"
+    strip-ansi "^6.0.1"
+
 tar@^4.0.2:
   version "4.4.19"
   resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.19.tgz#2e4d7263df26f2b914dee10c825ab132123742f3"
@@ -7617,6 +8073,11 @@ undici@^4.14.1:
   resolved "https://registry.yarnpkg.com/undici/-/undici-4.16.0.tgz#469bb87b3b918818d3d7843d91a1d08da357d5ff"
   integrity sha512-tkZSECUYi+/T1i4u+4+lwZmQgLXd4BLGlrc7KZPcLIW7Jpq99+Xpc30ONv7nS6F5UNOxp/HBZSSL9MafUrvJbw==
 
+undici@^5.4.0:
+  version "5.8.0"
+  resolved "https://registry.yarnpkg.com/undici/-/undici-5.8.0.tgz#dec9a8ccd90e5a1d81d43c0eab6503146d649a4f"
+  integrity sha512-1F7Vtcez5w/LwH2G2tGnFIihuWUlc58YidwLiCv+jR2Z50x0tNXpRRw7eOIJ+GvqCqIkg9SB7NWAJ/T9TLfv8Q==
+
 unique-string@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/unique-string/-/unique-string-2.0.0.tgz#39c6451f81afb2749de2b233e3f7c5e8843bd89d"
@@ -8316,7 +8777,6 @@ web3-provider-engine@16.0.3:
 
 web3-provider-engine@habdelra/web3-provider-engine:
   version "16.0.1"
-  uid d9e5d9545c1af75124ca027bce5aaa84a3c4fda4
   resolved "https://codeload.github.com/habdelra/web3-provider-engine/tar.gz/d9e5d9545c1af75124ca027bce5aaa84a3c4fda4"
   dependencies:
     async "^2.5.0"
@@ -8683,6 +9143,11 @@ write@1.0.3:
   dependencies:
     mkdirp "^0.5.1"
 
+ws@7.4.6:
+  version "7.4.6"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-7.4.6.tgz#5654ca8ecdeee47c33a9a4bf6d28e2be2980377c"
+  integrity sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A==
+
 ws@^3.0.0:
   version "3.3.3"
   resolved "https://registry.yarnpkg.com/ws/-/ws-3.3.3.tgz#f1cf84fe2d5e901ebce94efaece785f187a228f2"