diff --git a/.buildkite/pipeline.yml b/.buildkite/pipeline.yml
index d8be8f8af..2172e37b2 100644
--- a/.buildkite/pipeline.yml
+++ b/.buildkite/pipeline.yml
@@ -1,194 +1,194 @@
 steps:
-    - command: |
-        source ~/.cargo/env
-        rustup default stable
-        ci/test_verify_eth_headers.sh
-    
-      label: "verify eth headers"
-      agents:
-      - "queue=medium"
-  
-    - command: | 
-        source ~/.cargo/env
-        rustup default stable
-        ci/test_verify_eth_proofs.sh
-    
-      label: "verify eth proofs"
-      agents:
-      - "queue=medium"
-  
-    - command: |
-        source ~/.cargo/env
-        rustup default stable
-        cd libs-rs
-        eth-client/test.sh
-    
-      label: "eth-client tests"
-      agents:
-      - "queue=medium"
-  
-    - command: |
-        source ~/.cargo/env
-        rustup default stable
-        cd libs-rs
-        eth-prover/test.sh
-    
-      label: "eth-prover tests"
-      agents:
-      - "queue=medium"
-  
-    - command: |
-        cd libs-rs
-        ./build_all.sh
-        changed_files=$$(git status --porcelain --untracked-files=no | wc -l)
-        if [ $$changed_files -gt 0 ]; then
-          echo 'contract changed, please rebuild contract'
-          exit 1
-        fi
-    
-      label: "build all rust contracts"
-      agents:
-      - "queue=medium"
-  
-    - command: |
-        source ~/.cargo/env
-        source ~/.nvm/nvm.sh
-        source ~/.yarn/yarn.sh
-        cd libs-sol
-        ./build_all.sh
-    
-      label: "build all solidity contracts"
-      agents:
-      - "queue=medium"
-  
-    - label: "lint" 
-      command: |
-        source ~/.cargo/env
-        source ~/.nvm/nvm.sh
-        source ~/.yarn/yarn.sh
-        cd environment
-        yarn
-        yarn run lint
-        cd ../libs-sol/nearbridge
-        yarn
-        yarn lint
-      agents:
-      - "queue=medium"
-      soft_fail:
+  - command: |
+      source ~/.cargo/env
+      rustup default stable
+      ci/test_verify_eth_headers.sh
+
+    label: 'verify eth headers'
+    agents:
+      - 'queue=medium'
+
+  - command: |
+      source ~/.cargo/env
+      rustup default stable
+      ci/test_verify_eth_proofs.sh
+
+    label: 'verify eth proofs'
+    agents:
+      - 'queue=medium'
+
+  - command: |
+      source ~/.cargo/env
+      rustup default stable
+      cd libs-rs
+      eth-client/test.sh
+
+    label: 'eth-client tests'
+    agents:
+      - 'queue=medium'
+
+  - command: |
+      source ~/.cargo/env
+      rustup default stable
+      cd libs-rs
+      eth-prover/test.sh
+
+    label: 'eth-prover tests'
+    agents:
+      - 'queue=medium'
+
+  - command: |
+      cd libs-rs
+      ./build_all.sh
+      changed_files=$$(git status --porcelain --untracked-files=no | wc -l)
+      if [ $$changed_files -gt 0 ]; then
+        echo 'contract changed, please rebuild contract'
+        exit 1
+      fi
+
+    label: 'build all rust contracts'
+    agents:
+      - 'queue=medium'
+
+  - command: |
+      source ~/.cargo/env
+      source ~/.nvm/nvm.sh
+      source ~/.yarn/yarn.sh
+      cd libs-sol
+      ./build_all.sh
+
+    label: 'build all solidity contracts'
+    agents:
+      - 'queue=medium'
+
+  - label: 'lint'
+    command: |
+      source ~/.cargo/env
+      source ~/.nvm/nvm.sh
+      source ~/.yarn/yarn.sh
+      cd environment
+      yarn
+      yarn run lint
+      cd ../libs-sol/nearbridge
+      yarn
+      yarn lint
+    agents:
+      - 'queue=medium'
+    soft_fail:
       - exit_status: 1
       - exit_status: 2
-  
-    - command: |
-        source ~/.nvm/nvm.sh
-        source ~/.yarn/yarn.sh
-        cd environment
-        yarn
-        cd ..
-        cd libs-sol/nearbridge
-        yarn
-        yarn test
-        node test/ed25519-test.js
-    
-      label: "nearbridge test"
-      agents:
-      - "queue=medium"
-  
-    - command: |
-        source ~/.cargo/env
-        cd libs-rs
-        cargo test
-    
-      label: "rust contracts test"
-      agents:
-      - "queue=medium"
-  
-    - command: | 
-        source ~/.nvm/nvm.sh
-        source ~/.yarn/yarn.sh
-        cd environment
-        yarn
-        cd ../libs-sol/nearprover
-        yarn
-        yarn test
-    
-      label: "nearprover test"
-      agents:
-      - "queue=medium"
-    
-    - label: "e2e test"
-      command: |
-        source ci/e2e_ci_prepare_env.sh
-        source ci/e2e_ci_prepare_log.sh
-        ci/e2e.sh
-    
-      artifact_paths:
-      - "logs/**/*.log"
-      timeout: 40
-    
-      agents:
-      - "queue=default"
-
-    - label: "test challenge with near watchdog"
-      command: |
-        source ci/e2e_ci_prepare_env.sh
-        source ci/e2e_ci_prepare_log.sh
-        ci/test_challenge.sh
-    
-      artifact_paths:
-      - "logs/**/*.log"
-      timeout: 40
-    
-      agents:
-      - "queue=default"
-
-    - label: "test ethrelay catchup"
-      command: |
-        source ci/e2e_ci_prepare_env.sh
-        source ci/e2e_ci_prepare_log.sh
-        ci/test_ethrelay_catchup.sh
-    
-      artifact_paths:
-      - "logs/**/*.log"
-      timeout: 40
-    
-      agents:
-      - "queue=default"
-
-    - label: "test command as installed from npm"
-      command: |
-        source ci/e2e_ci_prepare_env.sh
-        source ci/e2e_ci_prepare_log.sh
-        ci/test_npm_package.sh
-    
-      artifact_paths:
-      - "logs/**/*.log"
-      timeout: 40
-    
-      agents:
-      - "queue=default"
-
-    - command: |
-        source ~/.nvm/nvm.sh
-        source ~/.yarn/yarn.sh
-        cd environment
-        yarn
-        cd ..
-        ci/test_verify_near_headers.sh
-    
-      label: "verify near headers"
-      agents:
-      - "queue=medium"
-  
-    - command: |
-        source ~/.nvm/nvm.sh
-        source ~/.yarn/yarn.sh
-        cd environment
-        yarn
-        cd ../libs-sol/nearprover
-        yarn
-        cd ../..
-        ci/test_verify_near_proofs.sh
-    
-      label: "verify near proofs"
-      agents:
-      - "queue=medium"
+
+  - command: |
+      source ~/.nvm/nvm.sh
+      source ~/.yarn/yarn.sh
+      cd environment
+      yarn
+      cd ..
+      cd libs-sol/nearbridge
+      yarn
+      yarn test
+      node test/ed25519-test.js
+
+    label: 'nearbridge test'
+    agents:
+      - 'queue=medium'
+
+  - command: |
+      source ~/.cargo/env
+      cd libs-rs
+      cargo test
+
+    label: 'rust contracts test'
+    agents:
+      - 'queue=medium'
+
+  - command: |
+      source ~/.nvm/nvm.sh
+      source ~/.yarn/yarn.sh
+      cd environment
+      yarn
+      cd ../libs-sol/nearprover
+      yarn
+      yarn test
+
+    label: 'nearprover test'
+    agents:
+      - 'queue=medium'
+
+  - label: 'e2e test'
+    command: |
+      source ci/e2e_ci_prepare_env.sh
+      source ci/e2e_ci_prepare_log.sh
+      ci/e2e.sh
+
+    artifact_paths:
+      - 'logs/**/*.log'
+    timeout: 40
+
+    agents:
+      - 'queue=default'
+
+  - label: 'test challenge with Rainbow Bridge Watchdog'
+    command: |
+      source ci/e2e_ci_prepare_env.sh
+      source ci/e2e_ci_prepare_log.sh
+      ci/test_challenge.sh
+
+    artifact_paths:
+      - 'logs/**/*.log'
+    timeout: 40
+
+    agents:
+      - 'queue=default'
+
+  - label: 'test ethrelay catchup'
+    command: |
+      source ci/e2e_ci_prepare_env.sh
+      source ci/e2e_ci_prepare_log.sh
+      ci/test_ethrelay_catchup.sh
+
+    artifact_paths:
+      - 'logs/**/*.log'
+    timeout: 40
+
+    agents:
+      - 'queue=default'
+
+  - label: 'test command as installed from npm'
+    command: |
+      source ci/e2e_ci_prepare_env.sh
+      source ci/e2e_ci_prepare_log.sh
+      ci/test_npm_package.sh
+
+    artifact_paths:
+      - 'logs/**/*.log'
+    timeout: 40
+
+    agents:
+      - 'queue=default'
+
+  - command: |
+      source ~/.nvm/nvm.sh
+      source ~/.yarn/yarn.sh
+      cd environment
+      yarn
+      cd ..
+      ci/test_verify_near_headers.sh
+
+    label: 'verify near headers'
+    agents:
+      - 'queue=medium'
+
+  - command: |
+      source ~/.nvm/nvm.sh
+      source ~/.yarn/yarn.sh
+      cd environment
+      yarn
+      cd ../libs-sol/nearprover
+      yarn
+      cd ../..
+      ci/test_verify_near_proofs.sh
+
+    label: 'verify near proofs'
+    agents:
+      - 'queue=medium'
diff --git a/README.md b/README.md
index 77bb72be3..5779b026c 100644
--- a/README.md
+++ b/README.md
@@ -273,9 +273,9 @@ node index.js init-near-fun-token
 Now start the services that will relay the information between the chains:
 
 ```bash
-node index.js start eth-relay
-node index.js start near-relay --eth-master-sk 0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501201
-node index.js start near-watchdog --eth-master-sk 0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501202
+node index.js start eth2near-relay
+node index.js start near2eth-relay --eth-master-sk 0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501201
+node index.js start bridge-watchdog --eth-master-sk 0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501202
 ```
 
 Note, you can observe the logs of the relays by running:
@@ -314,9 +314,9 @@ You should observe the change of the ERC20 balance as reported by the CLI.
 2. A development docker compose setup (docker-compose-dev.yml)
    - ganache
    - local near node
-   - eth-relay
+   - eth2near-relay
 3. A production docker compose setup (docker-compose-prod.yml)
-   - eth-relay
+   - eth2near-relay
 
 ## Running the docker setup:
 
diff --git a/ci/e2e.sh b/ci/e2e.sh
index 83684105f..5d2ed38b1 100755
--- a/ci/e2e.sh
+++ b/ci/e2e.sh
@@ -39,10 +39,10 @@ node index.js init-near-fun-token
 yarn run pm2 ping
 sleep 5
 yarn run pm2 list
-node index.js start near-relay --eth-master-sk 0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501201
+node index.js start near2eth-relay --eth-master-sk 0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501201
 sleep 5
 yarn run pm2 list
-node index.js start eth-relay
+node index.js start eth2near-relay
 sleep 5
 yarn run pm2 list
 node index.js transfer-eth-erc20-to-near --amount 1000 \
diff --git a/ci/test_challenge.sh b/ci/test_challenge.sh
index 448bffd81..8e4f06bf3 100755
--- a/ci/test_challenge.sh
+++ b/ci/test_challenge.sh
@@ -38,21 +38,21 @@ node index.js init-near-fun-token
 
 sleep 5
 yarn run pm2 list
-node index.js start near-relay --eth-master-sk 0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501201
+node index.js start near2eth-relay --eth-master-sk 0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501201
 sleep 5
 yarn run pm2 list
-node index.js start eth-relay
+node index.js start eth2near-relay
 sleep 5
 yarn run pm2 list
-node index.js start near-watchdog
+node index.js start bridge-watchdog
 sleep 5
 yarn run pm2 list
 
 sleep 30
-node index.js stop near-relay
+node index.js stop near2eth-relay
 node index.js DANGER submit_invalid_near_block
 sleep 30
-node index.js start near-relay
+node index.js start near2eth-relay
 
 node index.js transfer-eth-erc20-to-near --amount 1000 \
 --eth-sender-sk 0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501200 \
diff --git a/ci/test_ethrelay_catchup.sh b/ci/test_ethrelay_catchup.sh
index 41b7e4907..bebdcf3cc 100755
--- a/ci/test_ethrelay_catchup.sh
+++ b/ci/test_ethrelay_catchup.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# This test launch all commands, but postpone start eth-relay late to test it catch fast
+# This test launch all commands, but postpone start eth2near-relay late to test it catch fast
 
 set -exuo pipefail
 
@@ -38,11 +38,11 @@ node index.js init-near-fun-token
 yarn run pm2 ping
 sleep 5
 yarn run pm2 list
-node index.js start near-relay --eth-master-sk 0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501201
+node index.js start near2eth-relay --eth-master-sk 0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501201
 sleep 5
 yarn run pm2 list
 sleep 100
-node index.js start eth-relay
+node index.js start eth2near-relay
 sleep 5
 yarn run pm2 list
 node index.js transfer-eth-erc20-to-near --amount 1000 \
diff --git a/ci/test_npm_package.sh b/ci/test_npm_package.sh
index 97f190cce..6f6f4253b 100755
--- a/ci/test_npm_package.sh
+++ b/ci/test_npm_package.sh
@@ -18,14 +18,14 @@ npm i pm2
 export PATH=${ROOT_DIR}/testenv/node_modules/.bin:$PATH
 cd ..
 
-rbbr clean
+rainbow clean
 if [ -n "${LOCAL_CORE_SRC+x}" ]; then
-  rbbr prepare --core-src "$LOCAL_CORE_SRC"
+  rainbow prepare --core-src "$LOCAL_CORE_SRC"
 else
-  rbbr prepare
+  rainbow prepare
 fi
-rbbr start near-node
-rbbr start ganache
+rainbow start near-node
+rainbow start ganache
 # Wait for the local node to start
 while ! curl localhost:3030; do
   sleep 1
@@ -35,31 +35,31 @@ while ! curl localhost:9545; do
   sleep 1
 done
 
-rbbr init-near-contracts
-rbbr init-eth-ed25519
+rainbow init-near-contracts
+rainbow init-eth-ed25519
 # Use short lockup time for tests
-rbbr init-eth-client --eth-client-lock-eth-amount 1e18 --eth-client-lock-duration 30
-rbbr init-eth-prover
-rbbr init-eth-erc20
-rbbr init-eth-locker
-rbbr init-near-fun-token
+rainbow init-eth-client --eth-client-lock-eth-amount 1e18 --eth-client-lock-duration 30
+rainbow init-eth-prover
+rainbow init-eth-erc20
+rainbow init-eth-locker
+rainbow init-near-fun-token
 # First start pm2 daemon
 cd ${ROOT_DIR}/testenv/
 pm2 ping
 sleep 5
 pm2 list
-rbbr start near-relay --eth-master-sk 0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501201
+rainbow start near2eth-relay --eth-master-sk 0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501201
 sleep 5
 pm2 list
-rbbr start eth-relay
+rainbow start eth2near-relay
 sleep 5
 pm2 list
-rbbr transfer-eth-erc20-to-near --amount 1000 \
+rainbow transfer-eth-erc20-to-near --amount 1000 \
 --eth-sender-sk 0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501200 \
 --near-receiver-account rainbow_bridge_eth_on_near_prover --near-master-account rainbow_bridge_eth_on_near_prover \
 2>&1 | tee -a /tmp/eth2neartransfer.out
 grep "Balance of rainbow_bridge_eth_on_near_prover after the transfer is 1000" /tmp/eth2neartransfer.out
-rbbr transfer-eth-erc20-from-near --amount 1 --near-sender-account rainbow_bridge_eth_on_near_prover \
+rainbow transfer-eth-erc20-from-near --amount 1 --near-sender-account rainbow_bridge_eth_on_near_prover \
 --near-sender-sk ed25519:3D4YudUQRE39Lc4JHghuB5WM8kbgDDa34mnrEP5DdTApVH81af7e2dWgNPEaiQfdJnZq1CNPp5im4Rg5b733oiMP \
 --eth-receiver-address 0xEC8bE1A5630364292E56D01129E8ee8A9578d7D8 \
 2>&1 | tee -a /tmp/near2ethtransfer.out
diff --git a/docker-compose-dev.yml b/docker-compose-dev.yml
index 80803fa90..2cb2d1eb1 100644
--- a/docker-compose-dev.yml
+++ b/docker-compose-dev.yml
@@ -12,7 +12,7 @@ services:
     command: bash -c "node index.js start ganache --daemon false"
     ports:
       - 9545:9545
-  eth-relay:
+  eth2near-relay:
     image: rainbow-image
     network_mode: host
-    command: bash -c "node index.js start eth-relay --daemon false"
+    command: bash -c "node index.js start eth2near-relay --daemon false"
diff --git a/docker-compose-prod.yml b/docker-compose-prod.yml
index ebda21bdd..a9e7930d8 100644
--- a/docker-compose-prod.yml
+++ b/docker-compose-prod.yml
@@ -3,4 +3,4 @@ services:
   near-node:
     build: .
     network_mode: host
-    command: bash -c "node index.js start eth-relay --daemon false"
+    command: bash -c "node index.js start eth2near-relay --daemon false"
diff --git a/docker-compose.yml b/docker-compose.yml
index 7cd02ee0f..e2b01ed03 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -14,7 +14,7 @@ services:
         done
         ganache-cli --port 9545 --blockTime 12 --gasLimit 10000000 --account='0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501200,10000000000000000000000000000'
       "
-  eth-relay:
+  eth2near-relay:
     build: .
     network_mode: host
     depends_on:
@@ -25,5 +25,5 @@ services:
           sleep 1
         done
         node index.js init-near-contracts &&
-        node index.js start eth-relay --daemon false
+        node index.js start eth2near-relay --daemon false
       "
diff --git a/environment/commands/init-near-contracts.js b/environment/commands/init-near-contracts.js
index 880d71e1c..44a8ccc86 100644
--- a/environment/commands/init-near-contracts.js
+++ b/environment/commands/init-near-contracts.js
@@ -1,8 +1,8 @@
 const Web3 = require('web3')
 const nearlib = require('near-api-js')
 const { maybeCreateAccount, verifyAccount } = require('../lib/near-helpers')
-const { NearClientContract } = require('../lib/near-client-contract')
-const { EthProverContract } = require('../lib/eth-prover-contract')
+const { EthOnNearClientContract } = require('../lib/eth-on-near-client')
+const { EthOnNearProverContract } = require('../lib/eth-on-near-prover')
 const { RobustWeb3 } = require('../lib/robust')
 const { RainbowConfig } = require('../lib/config')
 
@@ -92,13 +92,13 @@ class InitNearContracts {
     await verifyAccount(near, proverAccount)
 
     console.log('Initializing client and prover contracts.')
-    const clientContract = new NearClientContract(
+    const clientContract = new EthOnNearClientContract(
       new nearlib.Account(near.connection, clientAccount),
       clientAccount
     )
     const robustWeb3 = new RobustWeb3(RainbowConfig.getParam('eth-node-url'))
     await clientContract.maybeInitialize(validateEthash === 'true', robustWeb3)
-    const proverContract = new EthProverContract(
+    const proverContract = new EthOnNearProverContract(
       new nearlib.Account(near.connection, proverAccount),
       proverAccount
     )
diff --git a/environment/commands/start/eth-relay.js b/environment/commands/start/eth2near-relay.js
similarity index 74%
rename from environment/commands/start/eth-relay.js
rename to environment/commands/start/eth2near-relay.js
index 04d5c433a..17eb2944e 100644
--- a/environment/commands/start/eth-relay.js
+++ b/environment/commands/start/eth2near-relay.js
@@ -2,12 +2,12 @@ const ProcessManager = require('pm2')
 const nearlib = require('near-api-js')
 const { spawnProcess } = require('./helpers')
 const { Eth2NearRelay } = require('../../lib/eth2near-relay')
-const { NearClientContract } = require('../../lib/near-client-contract')
+const { EthOnNearClientContract } = require('../../lib/eth-on-near-client')
 const { RainbowConfig } = require('../../lib/config')
 const path = require('path')
 const os = require('os')
 
-class StartEthRelayCommand {
+class StartEth2NearRelayCommand {
   static async execute() {
     if (RainbowConfig.getParam('daemon') === 'true') {
       ProcessManager.connect(err => {
@@ -17,13 +17,13 @@ class StartEthRelayCommand {
           )
           return
         }
-        spawnProcess('eth-relay', {
-          name: 'eth-relay',
+        spawnProcess('eth2near-relay', {
+          name: 'eth2near-relay',
           script: path.join(__dirname, '../../index.js'),
           interpreter: 'node',
-          error_file: '~/.rainbow/logs/eth-relay/err.log',
-          out_file: '~/.rainbow/logs/eth-relay/out.log',
-          args: ['start', 'eth-relay', ...RainbowConfig.getArgsNoDaemon()],
+          error_file: '~/.rainbow/logs/eth2near-relay/err.log',
+          out_file: '~/.rainbow/logs/eth2near-relay/out.log',
+          args: ['start', 'eth2near-relay', ...RainbowConfig.getArgsNoDaemon()],
           wait_ready: true,
           kill_timeout: 60000,
           logDateFormat: 'YYYY-MM-DD HH:mm:ss.SSS',
@@ -48,17 +48,17 @@ class StartEthRelayCommand {
       })
 
       const relay = new Eth2NearRelay()
-      const clientContract = new NearClientContract(
+      const clientContract = new EthOnNearClientContract(
         new nearlib.Account(near.connection, masterAccount),
         RainbowConfig.getParam('near-client-account')
       )
       await clientContract.accessKeyInit()
-      console.log('Initializing Eth-Relay...')
+      console.log('Initializing eth2near-relay...')
       relay.initialize(clientContract, RainbowConfig.getParam('eth-node-url'))
-      console.log('Starting Eth-Relay...')
+      console.log('Starting eth2near-relay...')
       await relay.run()
     }
   }
 }
 
-exports.StartEthRelayCommand = StartEthRelayCommand
+exports.StartEth2NearRelayCommand = StartEth2NearRelayCommand
diff --git a/environment/commands/start/near-relay.js b/environment/commands/start/near2eth-relay.js
similarity index 69%
rename from environment/commands/start/near-relay.js
rename to environment/commands/start/near2eth-relay.js
index 325b148ed..92b5a2a50 100644
--- a/environment/commands/start/near-relay.js
+++ b/environment/commands/start/near2eth-relay.js
@@ -5,7 +5,7 @@ const { RainbowConfig } = require('../../lib/config')
 const path = require('path')
 const os = require('os')
 
-class StartNearRelayCommand {
+class StartNear2EthRelayCommand {
   static async execute() {
     if (RainbowConfig.getParam('daemon') === 'true') {
       ProcessManager.connect(err => {
@@ -15,13 +15,13 @@ class StartNearRelayCommand {
           )
           return
         }
-        spawnProcess('near-relay', {
-          name: 'near-relay',
+        spawnProcess('near2eth-relay', {
+          name: 'near2eth-relay',
           script: path.join(__dirname, '../../index.js'),
           interpreter: 'node',
-          error_file: '~/.rainbow/logs/near-relay/err.log',
-          out_file: '~/.rainbow/logs/near-relay/out.log',
-          args: ['start', 'near-relay', ...RainbowConfig.getArgsNoDaemon()],
+          error_file: '~/.rainbow/logs/near2eth-relay/err.log',
+          out_file: '~/.rainbow/logs/near2eth-relay/out.log',
+          args: ['start', 'near2eth-relay', ...RainbowConfig.getArgsNoDaemon()],
           wait_ready: true,
           kill_timeout: 60000,
           logDateFormat: 'YYYY-MM-DD HH:mm:ss.SSS',
@@ -35,4 +35,4 @@ class StartNearRelayCommand {
   }
 }
 
-exports.StartNearRelayCommand = StartNearRelayCommand
+exports.StartNear2EthRelayCommand = StartNear2EthRelayCommand
diff --git a/environment/commands/start/near-watchdog.js b/environment/commands/start/watchdog.js
similarity index 58%
rename from environment/commands/start/near-watchdog.js
rename to environment/commands/start/watchdog.js
index 8c565ad04..b836c5e29 100644
--- a/environment/commands/start/near-watchdog.js
+++ b/environment/commands/start/watchdog.js
@@ -1,11 +1,11 @@
 const ProcessManager = require('pm2')
 const { spawnProcess } = require('./helpers')
-const { Near2EthWatchdog } = require('../../lib/near2eth-watchdog')
+const { Watchdog } = require('../../lib/watchdog')
 const { RainbowConfig } = require('../../lib/config')
 const path = require('path')
 const os = require('os')
 
-class StartNearWatchdogCommand {
+class StartWatchdogCommand {
   static async execute() {
     if (RainbowConfig.getParam('daemon') === 'true') {
       ProcessManager.connect(err => {
@@ -15,22 +15,26 @@ class StartNearWatchdogCommand {
           )
           return
         }
-        spawnProcess('near-watchdog', {
-          name: 'near-watchdog',
+        spawnProcess('bridge-watchdog', {
+          name: 'bridge-watchdog',
           script: path.join(__dirname, '../../index.js'),
           interpreter: 'node',
-          error_file: '~/.rainbow/logs/near-watchdog/err.log',
-          out_file: '~/.rainbow/logs/near-watchdog/out.log',
-          args: ['start', 'near-watchdog', ...RainbowConfig.getArgsNoDaemon()],
+          error_file: '~/.rainbow/logs/bridge-watchdog/err.log',
+          out_file: '~/.rainbow/logs/bridge-watchdog/out.log',
+          args: [
+            'start',
+            'bridge-watchdog',
+            ...RainbowConfig.getArgsNoDaemon(),
+          ],
           logDateFormat: 'YYYY-MM-DD HH:mm:ss.SSS',
         })
       })
     } else {
-      const watchdog = new Near2EthWatchdog()
+      const watchdog = new Watchdog()
       await watchdog.initialize()
       await watchdog.run()
     }
   }
 }
 
-exports.StartNearWatchdogCommand = StartNearWatchdogCommand
+exports.StartWatchdogCommand = StartWatchdogCommand
diff --git a/environment/commands/status.js b/environment/commands/status.js
index b1a7ec0c8..03d3d06b4 100644
--- a/environment/commands/status.js
+++ b/environment/commands/status.js
@@ -2,6 +2,7 @@ const Web3 = require('web3')
 const nearlib = require('near-api-js')
 const fetch = require('node-fetch')
 const fs = require('fs')
+const ProcessManager = require('pm2-promise')
 
 const { verifyAccountGently } = require('../lib/near-helpers')
 const { RainbowConfig } = require('../lib/config')
@@ -13,6 +14,7 @@ const Info = 'info'
 const Warn = 'warn'
 const Error = 'error'
 
+const Running = 'running'
 const Valid = 'valid'
 const Deployed = 'deployed'
 const Unknown = 'unknown'
@@ -79,10 +81,25 @@ class NearContracts {
       return new Status(Unknown, Error, ContractNotFound)
     }
     try {
-      const contract = new nearlib.Contract(masterAccount, contractAccount, {})
-      // TODO #257 check contract validity here
-      //console.log(contract);
-      return new Status(Unknown, Info, NotVerified)
+      const nearAccount = new nearlib.Account(near.connection, masterAccount)
+      const contract = new nearlib.Contract(nearAccount, contractAccount, {
+        changeMethods: ['boo'],
+        viewMethods: [],
+      })
+      // TODO #270 implement `initialized` method to NEAR contracts
+      // TODO #257 check the code deployed if possible
+      try {
+        await contract.boo()
+      } catch (err) {
+        if (
+          err.message &&
+          err.message.indexOf('Contract method is not found') >= 0
+        ) {
+          return new Status(contract.contractId, Ok, Deployed)
+        } else {
+          return new Status(Unknown, Info, NotVerified)
+        }
+      }
     } catch (err) {
       return new Status(Unknown, Error, InternalError)
     }
@@ -312,6 +329,43 @@ class EthStatus {
   }
 }
 
+class ServicesStatus {
+  async init() {
+    this.eth2nearRelay = await this.running('eth2near-relay')
+    this.near2ethRelay = await this.running('near2eth-relay')
+    this.watchdog = await this.running('bridge-watchdog')
+  }
+
+  processArgs(args) {
+    var res = []
+    for (var i = 0; i + 1 < args.length; i++) {
+      if (args[i].startsWith('--')) {
+        res.push(args[i].substring(2, args[i].length) + '=' + args[i + 1])
+      }
+    }
+    return res.join(', ')
+  }
+
+  async running(serviceName) {
+    let status
+    try {
+      const process = await ProcessManager.describe(serviceName)
+      if (process.length) {
+        status = new Status(
+          Running,
+          Ok,
+          this.processArgs(process[0].pm2_env.args)
+        )
+      } else {
+        status = new Status(Unknown, Error, Unreachable)
+      }
+    } catch (err) {
+      status = new Status(Unknown, Error, InternalError)
+    }
+    return status
+  }
+}
+
 // TODO put it into StatusCommand class if possible
 function printHeader(text) {
   console.log('\x1B[33m' + text + NoColor)
@@ -360,6 +414,9 @@ class StatusCommand {
     const ethStatus = new EthStatus()
     await ethStatus.init()
 
+    const servicesStatus = new ServicesStatus()
+    await servicesStatus.init()
+
     // Return console.error back
     console.error = consoleError
 
@@ -409,6 +466,14 @@ class StatusCommand {
     } else {
       printLine('Contracts')
     }
+    printFooter()
+
+    printHeader('Services')
+    printLine('ETH-2-NEAR relay', servicesStatus.eth2nearRelay)
+    printLine('NEAR-2-ETH relay', servicesStatus.near2ethRelay)
+    printLine('Bridge Watchdog', servicesStatus.watchdog)
+
+    ProcessManager.disconnect()
   }
 }
 
diff --git a/environment/commands/stop/all.js b/environment/commands/stop/all.js
deleted file mode 100644
index 2005aaecd..000000000
--- a/environment/commands/stop/all.js
+++ /dev/null
@@ -1,37 +0,0 @@
-const ProcessManager = require('pm2-promise')
-
-const { StopLocalNearNodeCommand } = require('./near.js')
-
-async function stop(serviceName) {
-  try {
-    await ProcessManager.delete(serviceName)
-    console.log(serviceName, 'successfully stopped...')
-  } catch (err) {
-    if (!err.message.includes('process or namespace not found')) {
-      console.log(serviceName, 'error stopping the process due to:', err)
-    } else {
-      console.log(serviceName, 'already stopped')
-    }
-  }
-}
-
-class StopAllCommands {
-  static async execute() {
-    console.log('Stopping all processes...')
-
-    StopLocalNearNodeCommand.execute()
-    for (const serviceName of [
-      'ganache',
-      'eth-relay',
-      'near-relay',
-      'near-watchdog',
-    ]) {
-      await stop(serviceName)
-    }
-
-    console.log('Stopping all processes done')
-    await ProcessManager.disconnect()
-  }
-}
-
-exports.StopAllCommands = StopAllCommands
diff --git a/environment/commands/stop/near.js b/environment/commands/stop/near.js
deleted file mode 100644
index 26ba9463c..000000000
--- a/environment/commands/stop/near.js
+++ /dev/null
@@ -1,15 +0,0 @@
-const { execSync } = require('child_process')
-
-class StopLocalNearNodeCommand {
-  static execute() {
-    console.log('Stopping local near node...')
-    const command = 'python3 ~/.rainbow/nearup/main.py stop'
-    try {
-      execSync(command)
-    } catch (err) {
-      console.log('Error stopping local near node', err)
-    }
-  }
-}
-
-exports.StopLocalNearNodeCommand = StopLocalNearNodeCommand
diff --git a/environment/commands/stop/process.js b/environment/commands/stop/process.js
index d975d5f5c..b555d6a95 100644
--- a/environment/commands/stop/process.js
+++ b/environment/commands/stop/process.js
@@ -1,23 +1,66 @@
-const ProcessManager = require('pm2')
+const ProcessManager = require('pm2-promise')
+const { execSync } = require('child_process')
+
+async function stopLocalNearNode() {
+  console.log('Stopping near node')
+  const command = 'python3 ~/.rainbow/nearup/main.py stop'
+  try {
+    execSync(command)
+    console.log('near node successfully stopped')
+  } catch (err) {
+    console.log('Error stopping local near node', err)
+  }
+}
+
+async function stop(serviceName) {
+  try {
+    console.log('Stopping', serviceName)
+    await ProcessManager.delete(serviceName)
+    console.log(serviceName, 'successfully stopped')
+  } catch (err) {
+    if (
+      err.message &&
+      err.message.indexOf('process or namespace not found') >= 0
+    ) {
+      console.log(serviceName, 'already stopped')
+    } else {
+      console.log(
+        serviceName,
+        'error stopping the process due to:',
+        err.message
+      )
+    }
+  }
+}
 
 class StopManagedProcessCommand {
-  static execute(command) {
+  static async execute(command) {
     const serviceName = command._name
-    console.log('Stopping process:', serviceName)
-    ProcessManager.delete(serviceName, err => {
-      if (err) {
-        if (!err.message.includes('process or namespace not found')) {
-          console.log('Error stopping the process due to:', err)
-          process.exit(1)
-        } else {
-          console.log(serviceName, 'already stopped')
-        }
-      } else {
-        console.log(serviceName, 'successfully stopped...')
+
+    const consoleError = console.error
+    // A cool hack to avoid annoying pm2 printing to stderr
+    console.error = function() {}
+
+    if (serviceName === 'near-node') {
+      await stopLocalNearNode()
+    } else if (serviceName === 'all') {
+      await stopLocalNearNode()
+      for (const serviceName of [
+        'ganache',
+        'eth2near-relay',
+        'near2eth-relay',
+        'bridge-watchdog',
+      ]) {
+        await stop(serviceName)
+        await ProcessManager.disconnect()
       }
-      // @ts-ignore
-      ProcessManager.disconnect()
-    })
+    } else {
+      await stop(serviceName)
+      await ProcessManager.disconnect()
+    }
+
+    // Return console.error back
+    console.error = consoleError
   }
 }
 
diff --git a/environment/commands/transfer-eth-erc20-from-near.js b/environment/commands/transfer-eth-erc20-from-near.js
index 159eef4a5..d6c6aa338 100644
--- a/environment/commands/transfer-eth-erc20-from-near.js
+++ b/environment/commands/transfer-eth-erc20-from-near.js
@@ -1,4 +1,3 @@
-const Web3 = require('web3')
 const nearlib = require('near-api-js')
 const BN = require('bn.js')
 const fs = require('fs')
diff --git a/environment/commands/transfer-eth-erc20-to-near.js b/environment/commands/transfer-eth-erc20-to-near.js
index 742ddd894..6d585ac9b 100644
--- a/environment/commands/transfer-eth-erc20-to-near.js
+++ b/environment/commands/transfer-eth-erc20-to-near.js
@@ -1,6 +1,5 @@
 const utils = require('ethereumjs-util')
 const BN = require('bn.js')
-const Web3 = require('web3')
 const fs = require('fs')
 const nearlib = require('near-api-js')
 const {
@@ -11,7 +10,7 @@ const {
 const { verifyAccount } = require('../lib/near-helpers')
 const { NearMintableToken } = require('../lib/near-mintable-token')
 const { RainbowConfig } = require('../lib/config')
-const { NearClientContract } = require('../lib/near-client-contract')
+const { EthOnNearClientContract } = require('../lib/eth-on-near-client')
 const { sleep, RobustWeb3 } = require('../lib/robust')
 const { normalizeEthKey } = require('../lib/robust')
 
@@ -130,7 +129,7 @@ class TransferETHERC20ToNear {
     txLogIndex,
     lockedEvent,
     block,
-    ethClientContract,
+    ethOnNearClientContract,
   }) {
     const log_entry_data = logFromWeb3(log).serialize()
     const receipt_index = proof.txIndex
@@ -161,9 +160,9 @@ class TransferETHERC20ToNear {
     while (true) {
       // @ts-ignore
       const last_block_number = (
-        await ethClientContract.last_block_number()
+        await ethOnNearClientContract.last_block_number()
       ).toNumber()
-      const is_safe = await ethClientContract.block_hash_safe(blockNumber)
+      const is_safe = await ethOnNearClientContract.block_hash_safe(blockNumber)
       if (!is_safe) {
         const delay = 10
         console.log(
@@ -326,7 +325,7 @@ class TransferETHERC20ToNear {
     )
 
     const clientAccount = RainbowConfig.getParam('near-client-account')
-    const ethClientContract = new NearClientContract(
+    const ethOnNearClientContract = new EthOnNearClientContract(
       nearMasterAccount,
       clientAccount
     )
@@ -360,7 +359,7 @@ class TransferETHERC20ToNear {
     }
     if (transferLog.finished === 'find-proof') {
       await TransferETHERC20ToNear.waitBlockSafe({
-        ethClientContract,
+        ethOnNearClientContract,
         ...transferLog,
       })
       transferLog = TransferETHERC20ToNear.loadTransferLog()
diff --git a/environment/index.js b/environment/index.js
index a29e0f0c3..925d23596 100755
--- a/environment/index.js
+++ b/environment/index.js
@@ -6,15 +6,15 @@ const { program } = require('commander')
 const { CleanCommand } = require('./commands/clean')
 const { PrepareCommand } = require('./commands/prepare')
 const { StatusCommand } = require('./commands/status')
-const { StartEthRelayCommand } = require('./commands/start/eth-relay.js')
-const { StartNearRelayCommand } = require('./commands/start/near-relay.js')
 const {
-  StartNearWatchdogCommand,
-} = require('./commands/start/near-watchdog.js')
+  StartEth2NearRelayCommand,
+} = require('./commands/start/eth2near-relay.js')
+const {
+  StartNear2EthRelayCommand,
+} = require('./commands/start/near2eth-relay.js')
+const { StartWatchdogCommand } = require('./commands/start/watchdog.js')
 const { StartGanacheNodeCommand } = require('./commands/start/ganache.js')
 const { StartLocalNearNodeCommand } = require('./commands/start/near.js')
-const { StopLocalNearNodeCommand } = require('./commands/stop/near.js')
-const { StopAllCommands } = require('./commands/stop/all.js')
 const { StopManagedProcessCommand } = require('./commands/stop/process.js')
 const {
   DangerSubmitInvalidNearBlock,
@@ -271,7 +271,9 @@ RainbowConfig.addOptions(
 )
 
 RainbowConfig.addOptions(
-  startCommand.command('eth-relay').action(StartEthRelayCommand.execute),
+  startCommand
+    .command('eth2near-relay')
+    .action(StartEth2NearRelayCommand.execute),
   [
     'near-master-account',
     'near-master-sk',
@@ -283,7 +285,9 @@ RainbowConfig.addOptions(
 )
 
 RainbowConfig.addOptions(
-  startCommand.command('near-relay').action(StartNearRelayCommand.execute),
+  startCommand
+    .command('near2eth-relay')
+    .action(StartNear2EthRelayCommand.execute),
   [
     'eth-node-url',
     'eth-master-sk',
@@ -298,25 +302,23 @@ RainbowConfig.addOptions(
 )
 
 RainbowConfig.addOptions(
-  startCommand
-    .command('near-watchdog')
-    .action(StartNearWatchdogCommand.execute),
+  startCommand.command('bridge-watchdog').action(StartWatchdogCommand.execute),
   ['eth-node-url', 'eth-master-sk', 'eth-client-abi-path', 'daemon']
 )
 
 const stopCommand = program.command('stop')
 
-stopCommand.command('all').action(StopAllCommands.execute)
+stopCommand.command('all').action(StopManagedProcessCommand.execute)
 
-stopCommand.command('near-node').action(StopLocalNearNodeCommand.execute)
+stopCommand.command('near-node').action(StopManagedProcessCommand.execute)
 
 stopCommand.command('ganache').action(StopManagedProcessCommand.execute)
 
-stopCommand.command('eth-relay').action(StopManagedProcessCommand.execute)
+stopCommand.command('eth2near-relay').action(StopManagedProcessCommand.execute)
 
-stopCommand.command('near-relay').action(StopManagedProcessCommand.execute)
+stopCommand.command('near2eth-relay').action(StopManagedProcessCommand.execute)
 
-stopCommand.command('near-watchdog').action(StopManagedProcessCommand.execute)
+stopCommand.command('bridge-watchdog').action(StopManagedProcessCommand.execute)
 
 RainbowConfig.addOptions(
   program
diff --git a/environment/lib/borsh/index.js b/environment/lib/borsh/index.js
index 6d63d22ae..0d3cf761c 100644
--- a/environment/lib/borsh/index.js
+++ b/environment/lib/borsh/index.js
@@ -4,7 +4,7 @@ const bs58 = require('bs58')
 
 const BN = require('bn.js')
 const { TextDecoder } = require('util')
-const { borshifyOutcomeProof } = require('./nearProof')
+const { borshifyOutcomeProof } = require('./near-proof')
 const { sleep, backoff, signAndSendTransaction } = require('../robust')
 
 class BorshError extends Error {
diff --git a/environment/lib/borsh/nearProof.js b/environment/lib/borsh/near-proof.js
similarity index 100%
rename from environment/lib/borsh/nearProof.js
rename to environment/lib/borsh/near-proof.js
diff --git a/environment/lib/eth-on-near-client/dag_merkle_roots.json b/environment/lib/eth-on-near-client/dag_merkle_roots.json
new file mode 100644
index 000000000..042c1a88d
--- /dev/null
+++ b/environment/lib/eth-on-near-client/dag_merkle_roots.json
@@ -0,0 +1,516 @@
+{
+  "dag_merkle_roots": [
+    "0x55b891e842e58f58956a847cbbf67821",
+    "0xfba03a3d1902b9256ebe9177d03242fe",
+    "0x2b186dc65b93be71780e5194fd44fc70",
+    "0x94c0532d49523cd9309057a847ef0dbd",
+    "0xf61d6da773315bdd4c79418186ebaa4a",
+    "0x28e89dd2e1e5e09ee3e4cf412af58a0e",
+    "0x54a0171c74e7336634f5b6b61f2b302c",
+    "0x3be685b693d9ddfc342406fcc8d98512",
+    "0x1887acc39d0818a7c6d47e33904a150a",
+    "0xe1434e68f6a9f30252e2f31be8db9658",
+    "0xa5e981ffaa1f770de8a1d21550f49755",
+    "0xf4a55238db60864330a300e1d05dba16",
+    "0xf4b2032ab23f95f9c9516db6d43372ce",
+    "0x5fa11b8f22bd56e5bbb4cb0f843b6730",
+    "0xad4e75d7abf04b5798d8d0c832bf6833",
+    "0x7df3208dec48fb446e0f89da95843d8a",
+    "0x250e4cae8e10486589190b68608af301",
+    "0xa55b182e12b1433a4935514bb729d2b2",
+    "0x99456d6b4f8886afbbafa6a758830a92",
+    "0xcfd122fe8a0b3c8984e1a603e97bae53",
+    "0x0d05ebdd6eae46efa4b0c7694e6db158",
+    "0x7e59bb58278cbd8f9470fe8636c4edee",
+    "0xc48e2800c2442220eb1d0a9d9d08b437",
+    "0x185f8beff965e31b7859b9b63fc79f97",
+    "0x6e6c22abdb238266d3fa0f2902f85d7c",
+    "0x7345950e2b649e10596ae6be11782110",
+    "0x0cc51bae63bfb29add017e4a0f89f97a",
+    "0x0a5a13ee1aea57228395fc64b8a1852e",
+    "0xecb847d99f761b457747886f4e0c81d7",
+    "0x9eaf4241ffab9b2d693b96420dbd0356",
+    "0x93f46416f3ef2d5ea57fe1a25c89cfea",
+    "0xec1ba1810cafc7c0fe76e7bf50809bb2",
+    "0x5ce691721774a58d63e53da2b80f0dbc",
+    "0xf570455f0bfca4359608d92ba076c0cc",
+    "0x1cdc79438ea2129bc739fc9497f53c14",
+    "0x52bfc78f0fc5839e04f1c729c73a1469",
+    "0xd711787384841b856ff7f4d53e5e42df",
+    "0x63dd408ecfdd6e71d45cddfd45aff23b",
+    "0xb0b09781e2c5249c9c248e0062a681ea",
+    "0x0d9d5d09f198c9637b510bbac6f33f34",
+    "0xb572f9b06f63d012d848174bd1191588",
+    "0xd7ab790f4a80e62b38d3a8ae4d170832",
+    "0x9184028922c8de7accdd9d72106aed6b",
+    "0x9d52e83fb1ccb288a8bbd7094ea25221",
+    "0xcb56adf452205662e1f83e51c0c496b5",
+    "0x761eb4593abc7603cf0b5ea95d3661bd",
+    "0x35ca47a1892c4524442a83fdc5231d3d",
+    "0x289f4c7339489b0d07c8716fbf169c74",
+    "0x75ec671be4712c1ce838fff26ef1122d",
+    "0xab650e5529ec2ce4147efe135a061eb1",
+    "0xe0e637747620e8c1c0ef440b99eb9ce7",
+    "0x94c0e63214f027f2ddd3ea463e44beb8",
+    "0x8548626524a60410aee37ee400d237fc",
+    "0xd80eb32a857a1f84b23801f6e4242459",
+    "0x4853cb0907651c681f1dfbab0646a828",
+    "0xecd1edccd4844736d8a8e01d4ab21e59",
+    "0xfb58a3ad252f9d576dcd1cfb23d32b89",
+    "0x583b5070f416adbbf796976b2ca27066",
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+    "0xe4af90f7979c2c631633131d642dd8bd",
+    "0x97f98f4275be120a445cd0275e2cd73a",
+    "0x150a9c0526b11752453a23d8b18a8f3b",
+    "0x010bbf6895ade2375c8478a0c3151ce5",
+    "0x355796530fdacf6d87bcc370f17fc71e",
+    "0x9a404317c26f415ed025f32dfabe8598",
+    "0x15d2eb783afced72c733f6ce90bf7349",
+    "0xfb9f445a7acf24b91e6cbe8f9489a7c2",
+    "0x6f03e5d4ef52a7c05a5a5fd28b159b5b",
+    "0x2466fb6d4eb8aa1c700e728fded218df",
+    "0x676cfafe2fbcffd070ddb236d2bb0021",
+    "0x91e33a111622283750412eea13c83f35",
+    "0x88b1f25057c3bac8ee1eeca2ff2209a3",
+    "0xc10d6e9c953ebdc8ece36c5cd6223387",
+    "0x1fb01164b818aa63387a0ec14be5e3e7",
+    "0xaca8367a8bfd04541cc836e293255b77",
+    "0x8b74b13c0d49da16c37a8de608c18e7e",
+    "0x79e4197b401889e0756cedda74f46812",
+    "0xfdfc1643dbd6ad08bd6a4eba37a0e3c3",
+    "0x3c4b6a74dd034b4e72bc84652a09a3ff",
+    "0x2f31fab52ef05919d280c2abcf422fab",
+    "0x4a2f98048e8605e4d439ff8554ab6e63",
+    "0x3b7e760d63c75a4c368dd53425084427",
+    "0xdbd55facc2eed4edae760a2ba92b4f39",
+    "0xf0e079daee7e4fae706c60345eaed7c6",
+    "0x00cd47758ac9dfe055865748f9f15b3a",
+    "0x5bb13e4d95fd1a1d551a0a8bbb724fbb",
+    "0x2ab38207d22885d80753f77eb8f11188",
+    "0x77af57a3e73852729f602770889d41f6",
+    "0x4e76a9575455c544259f6fa4dc28ec73",
+    "0xdced4535167e2f1ff0075e1fbca1f32b",
+    "0x94ac1540daf6ee75412dfedf521ac26b",
+    "0xa5f4edb22058795428c0e3f0984c4e42",
+    "0xc21b458e1b2973ad8d1a42865476e420",
+    "0xb8edf8bfd4fa0dcd9d68ca62de7f8163",
+    "0x8ca26ec2b20aaa2a003f4732b133d55e",
+    "0x518a1c489f3d366a6175a6c27caedb6d",
+    "0x11aa2bd74ac3e01a7ee5d413d3607681",
+    "0x3f2e4621aff23efdbe33e8c828c4d45a",
+    "0xff373231626f5dbcb6f1e0216aaec0ba",
+    "0xd400fa2884977ede9fb3667d23d984db",
+    "0x3ec403699e9f2e18d23f8e777cafa676",
+    "0xb6d0a777a0ce6e68f7bdeb79f37ae378",
+    "0x9e20d21eaa17f971543fe70ac15df078",
+    "0x8566b7226d025a7fcd4d61a7cb76edef",
+    "0x86d6b187f841cb3fcc92a27060e8f9ea",
+    "0xbf8d2e422a91c28cc445cb08a87bc401",
+    "0x0d64d2fbbad9c1b0530052ea47d4539b",
+    "0x0d5279a8100c0a044cf13882942f3c5e",
+    "0x4d914c7455896b6aeafbfaf5bbb7c69f",
+    "0x34859258bb4bac5923fb3c73c8e95fbb",
+    "0xcb2409f400cef34f88c7f29b731d7d59",
+    "0x7e9bc66a6bc2a5c5692306db1b6c474f",
+    "0x9b125466b31b3e4275b9c3f477ad9bb4",
+    "0x0682605f164269183277a0bfa1a7aa86",
+    "0xfdf029dca743acf24f4cbebbc846e990",
+    "0x4e5fa1902e699e059e6ac657585525f3",
+    "0xc70fced2684c45f39a227f1b0e6a2639",
+    "0x2e8ca3caf417021d3209da66f0d125b8",
+    "0x18a51613c5ae13e32c5bcf4965b78583",
+    "0x402ece445768d17f2790dc0cdbf7f9fa",
+    "0x7ef9cfe23a9f2d9b5fa10cc91e601f1c",
+    "0xba2dd4d240fbd92f1d46cd90a63cb301",
+    "0x29cff10b881311ce6292a765b9086853",
+    "0x9a016ffcb23883d0328d0183e035ed18",
+    "0xffcbd9d2ef2912e64d811c45700fcaec",
+    "0x0ce6dccd903d0e4809ad3e300da7a455",
+    "0x846bc24d47b884f73346f81788688374",
+    "0xbb5094794e59876aa8301adb7126a2c3",
+    "0xb8f55aa699f64d44a2c944246686298a",
+    "0xb824a33ef385a5293d2570326a7227c3",
+    "0xa9d724a77e1f87aaec95df4050649b1b",
+    "0xc0a76950b77ced186bdd52e1dc3ba8b7",
+    "0x38c28c14bfa88693bf306588e08ae09f",
+    "0x04f9280b95c9812a51299359c770b913",
+    "0x94f78ea30bbbc5024bc05c06fc80a3a3",
+    "0x57e2ff4bcecff754849ea5c15684df75",
+    "0x9064b534593c012115617b850814974e",
+    "0x96b84b73c9bd4fe4686b9c5e47057279",
+    "0x79422e6008157852225f4960b952ce94",
+    "0x16e6b48564c7f62bb0d6a5d8562f71e1",
+    "0x9ba574947f637db0922b5a3411b39073",
+    "0x9c0ea3342b493673eb6ba7c0f3e33001",
+    "0x13219cddbc960a443b68f73348bdabb7",
+    "0x9612e953f80bcec6fd9c11e80642e07c",
+    "0x7e1a63fe5d68d66440f69212f0d06a7d",
+    "0x29388bc27f370d522dc179cfddcefcf0",
+    "0x22d098169c99d823adbc0279467cdd55",
+    "0x8cb0763f7a0ec5aa0761bfbb049fe2c1",
+    "0xccd344c4e3b6b028253a724d7014b831",
+    "0x8a409beab35999899ae65a0b4519e081",
+    "0x472da5358a5c51cbe55d4beadfa8d2ef",
+    "0xaf3eb432bc504607d20dd9b93fdf0382",
+    "0x15652ee8ba674184c53238346e7c2818",
+    "0x1038ca6c9eca2e2240ae40dcee168d7f",
+    "0x8f99e10b2925562e1061f7ad3a7f591e",
+    "0xec7875f6e017ec743ce364f257c79a70",
+    "0xdf953a9008d4f96c63da1993439a81c6",
+    "0xc44353ffa531580a5bbbbb8faa0855cd",
+    "0x4d2020a9a71a5351f415552099e2760a",
+    "0x39c14bb1c059f585fd4ba723dc1c66ca",
+    "0x4fbbf8b5795d2a8b7a83b3768869b5e1",
+    "0x8210215bfb4ace609e0fb0973ac511de",
+    "0x16fba09f0e8ecd584d0524a4c5723a8b",
+    "0x8619f37f7511cec0777ab7efe07ae451",
+    "0xa4ff22443285056f6e6be1bba3a886e8",
+    "0xa13fb0480ab2fb0cdb3a1373694323f9",
+    "0xc9b9c6a82b04c72d8970ec3e015c2607",
+    "0x064449044bd883c413684d6d29eef904",
+    "0xb1896f87a9ae66ec233de69dd5b5fc50",
+    "0x4d39896b61686334603e8accbb0288ff",
+    "0xe0687ca2fc99a162a61e83da0f54dfea",
+    "0xe12c1c535fc6f6498de80b0da9094c80",
+    "0x4731d5e4b9421510c3ddf73d87a9c4a3",
+    "0x247a38f6f0fcc658fc35057787bd9054",
+    "0x8974ef985b8dc87bbf14f16657f3bd30",
+    "0x89073a016fd5c618095291915c5912e1",
+    "0x86f16e07d569b7570af0031fb6c36af4",
+    "0x12d5be9063d155f9df791be6c35f1865",
+    "0x8962f4ccba3d7cb61f0a501d474f9906",
+    "0xefee4030b687d7ae3eb2d27673f65343",
+    "0x2464c007ea23451f778ed2bf0c017b7b",
+    "0x6dbe36b12f350e01689f6295d686b8b9",
+    "0x025cafd23d97228050066bf4128a4fa3",
+    "0xde0bb757deba77755678381d08a12bf1",
+    "0x1c542ed68bb6f818c4bee47703298d08",
+    "0x8178b368306f2ae1abd7e68583d67dad",
+    "0xcb4d956080d6f8bb617a2d51e5ac1296",
+    "0x06dc4c3c0f4d7c5f4784f3e865433730",
+    "0x7134fde96ed353c8d6ac24ec7efccaf9",
+    "0x1466a522411631d6c9c5c706558985c1",
+    "0x95e26e89a1c7b9df6a7c2c56223292b5",
+    "0x6555486abac007b7fadaf6e04f896239",
+    "0x472a1d76a9734964c42b92b36993ed49",
+    "0xcea176b441e44750555739f29e045e74",
+    "0xfeb06e244cdbf8e8cb1d5fab49c6e583",
+    "0x499c5a7fc475c7ab9e888a9f8aeb5765",
+    "0xd3b05f45181c0b1b4a0354ffe3d95c9a",
+    "0xb768bcc1492f03e1819620dfa2e130d5",
+    "0xa38c13579500a7c7a90c80153ab22f4f",
+    "0xadb73d387c59a6ba8eff18a6b0320ca4",
+    "0x09c8e0bdd1ba73602063d89d11ff5210",
+    "0xecab8f890f1f3d6ff564eebab034ebb3",
+    "0x9823e2e8911c5a0fb2ff6feb52be2c0f",
+    "0x4fa03dbaabcf99e71903f3177444bfaa",
+    "0xa4c9667d00998d262c47f6d2c79f43c2",
+    "0xb3e65ee26384d25bc7750b3f37e72883",
+    "0x7dea46d1a183f3070760eee0bf5fce3c",
+    "0xecb2963c22a757569fe659635f4b0243",
+    "0x9ed968203144981e6e697db052910c27",
+    "0x4aa6ca6ebef942d8766065b2e590fd32"
+  ]
+}
diff --git a/environment/lib/near-client-contract/index.js b/environment/lib/eth-on-near-client/index.js
similarity index 90%
rename from environment/lib/near-client-contract/index.js
rename to environment/lib/eth-on-near-client/index.js
index 4b597b053..4cab0ac09 100644
--- a/environment/lib/near-client-contract/index.js
+++ b/environment/lib/eth-on-near-client/index.js
@@ -3,8 +3,6 @@ const { web3BlockToRlp } = require('../eth2near-relay')
 const Web3 = require('web3')
 const BN = require('bn.js')
 const { BorshContract, hexToBuffer, readerToHex } = require('../borsh')
-const { RobustWeb3 } = require('../robust')
-// @ts-ignore
 const roots = require('./dag_merkle_roots.json')
 
 const borshSchema = {
@@ -65,7 +63,7 @@ const borshSchema = {
   },
 }
 
-class NearClientContract extends BorshContract {
+class EthOnNearClientContract extends BorshContract {
   constructor(account, contractId) {
     super(borshSchema, account, contractId, {
       viewMethods: [
@@ -126,7 +124,7 @@ class NearClientContract extends BorshContract {
       initialized = await this.initialized()
     } catch (e) {}
     if (!initialized) {
-      console.log('EthClient is not initialized, initializing...')
+      console.log('EthOnNearClient is not initialized, initializing...')
       const last_block_number = await robustWeb3.getBlockNumber()
       const blockRlp = web3BlockToRlp(
         await robustWeb3.getBlock(last_block_number)
@@ -144,10 +142,10 @@ class NearClientContract extends BorshContract {
         },
         new BN('300000000000000')
       )
-      console.log('EthClient initialized')
+      console.log('EthOnNearClient initialized')
     }
 
-    console.log('Checking EthClient initialization.')
+    console.log('Checking EthOnNearClient initialization.')
     // @ts-ignore
     const first_root = await this.dag_merkle_root({
       epoch: 0,
@@ -163,11 +161,11 @@ class NearClientContract extends BorshContract {
       )
     ) {
       console.log(
-        `EthClient initialization error! The first and last roots are ${first_root} and ${last_root}`
+        `EthOnNearClient initialization error! The first and last roots are ${first_root} and ${last_root}`
       )
       process.exit(1)
     }
   }
 }
 
-exports.NearClientContract = NearClientContract
+exports.EthOnNearClientContract = EthOnNearClientContract
diff --git a/environment/lib/eth-prover-contract/index.js b/environment/lib/eth-on-near-prover/index.js
similarity index 94%
rename from environment/lib/eth-prover-contract/index.js
rename to environment/lib/eth-on-near-prover/index.js
index abe6daee1..8aa9148eb 100644
--- a/environment/lib/eth-prover-contract/index.js
+++ b/environment/lib/eth-on-near-prover/index.js
@@ -31,7 +31,7 @@ const borshSchema = {
   },
 }
 
-class EthProverContract extends BorshContract {
+class EthOnNearProverContract extends BorshContract {
   constructor(account, contractId) {
     super(borshSchema, account, contractId, {
       viewMethods: [],
@@ -77,6 +77,6 @@ class EthProverContract extends BorshContract {
   }
 }
 
-exports.EthProverContract = EthProverContract
+exports.EthOnNearProverContract = EthOnNearProverContract
 // For debugging;
 exports.borshSchema = borshSchema
diff --git a/environment/lib/eth-proof-extractor/index.js b/environment/lib/eth-proof-extractor/index.js
index 18740cb23..9bac3d779 100644
--- a/environment/lib/eth-proof-extractor/index.js
+++ b/environment/lib/eth-proof-extractor/index.js
@@ -1,8 +1,6 @@
-const Web3 = require('web3')
 const Tree = require('merkle-patricia-tree')
-const utils = require('ethereumjs-util')
 const { Header, Proof, Receipt, Log } = require('eth-object')
-const { encode, toBuffer } = require('eth-util-lite')
+const { encode } = require('eth-util-lite')
 const { promisfy } = require('promisfy')
 const { RobustWeb3 } = require('../robust')
 
diff --git a/environment/lib/eth2near-relay.js b/environment/lib/eth2near-relay.js
index 3505f7996..0fc909e57 100644
--- a/environment/lib/eth2near-relay.js
+++ b/environment/lib/eth2near-relay.js
@@ -1,6 +1,5 @@
 const path = require('path')
 const os = require('os')
-const Web3 = require('web3')
 const exec = require('child_process').exec
 const utils = require('ethereumjs-util')
 const BN = require('bn.js')
@@ -48,7 +47,7 @@ class Eth2NearRelay {
       let chainBlockNumber
       try {
         // Even retry 10 times ethClientContract.last_block_number could still fail
-        // Return back to loop to avoid crash eth-relay.
+        // Return back to loop to avoid crash eth2near-relay.
         clientBlockNumber = (
           await this.ethClientContract.last_block_number()
         ).toNumber()
diff --git a/environment/lib/near-client-contract/dag_merkle_roots.json b/environment/lib/near-client-contract/dag_merkle_roots.json
deleted file mode 100644
index 1bf0af332..000000000
--- a/environment/lib/near-client-contract/dag_merkle_roots.json
+++ /dev/null
@@ -1,516 +0,0 @@
-{
-    "dag_merkle_roots": [
-        "0x55b891e842e58f58956a847cbbf67821",
-        "0xfba03a3d1902b9256ebe9177d03242fe",
-        "0x2b186dc65b93be71780e5194fd44fc70",
-        "0x94c0532d49523cd9309057a847ef0dbd",
-        "0xf61d6da773315bdd4c79418186ebaa4a",
-        "0x28e89dd2e1e5e09ee3e4cf412af58a0e",
-        "0x54a0171c74e7336634f5b6b61f2b302c",
-        "0x3be685b693d9ddfc342406fcc8d98512",
-        "0x1887acc39d0818a7c6d47e33904a150a",
-        "0xe1434e68f6a9f30252e2f31be8db9658",
-        "0xa5e981ffaa1f770de8a1d21550f49755",
-        "0xf4a55238db60864330a300e1d05dba16",
-        "0xf4b2032ab23f95f9c9516db6d43372ce",
-        "0x5fa11b8f22bd56e5bbb4cb0f843b6730",
-        "0xad4e75d7abf04b5798d8d0c832bf6833",
-        "0x7df3208dec48fb446e0f89da95843d8a",
-        "0x250e4cae8e10486589190b68608af301",
-        "0xa55b182e12b1433a4935514bb729d2b2",
-        "0x99456d6b4f8886afbbafa6a758830a92",
-        "0xcfd122fe8a0b3c8984e1a603e97bae53",
-        "0x0d05ebdd6eae46efa4b0c7694e6db158",
-        "0x7e59bb58278cbd8f9470fe8636c4edee",
-        "0xc48e2800c2442220eb1d0a9d9d08b437",
-        "0x185f8beff965e31b7859b9b63fc79f97",
-        "0x6e6c22abdb238266d3fa0f2902f85d7c",
-        "0x7345950e2b649e10596ae6be11782110",
-        "0x0cc51bae63bfb29add017e4a0f89f97a",
-        "0x0a5a13ee1aea57228395fc64b8a1852e",
-        "0xecb847d99f761b457747886f4e0c81d7",
-        "0x9eaf4241ffab9b2d693b96420dbd0356",
-        "0x93f46416f3ef2d5ea57fe1a25c89cfea",
-        "0xec1ba1810cafc7c0fe76e7bf50809bb2",
-        "0x5ce691721774a58d63e53da2b80f0dbc",
-        "0xf570455f0bfca4359608d92ba076c0cc",
-        "0x1cdc79438ea2129bc739fc9497f53c14",
-        "0x52bfc78f0fc5839e04f1c729c73a1469",
-        "0xd711787384841b856ff7f4d53e5e42df",
-        "0x63dd408ecfdd6e71d45cddfd45aff23b",
-        "0xb0b09781e2c5249c9c248e0062a681ea",
-        "0x0d9d5d09f198c9637b510bbac6f33f34",
-        "0xb572f9b06f63d012d848174bd1191588",
-        "0xd7ab790f4a80e62b38d3a8ae4d170832",
-        "0x9184028922c8de7accdd9d72106aed6b",
-        "0x9d52e83fb1ccb288a8bbd7094ea25221",
-        "0xcb56adf452205662e1f83e51c0c496b5",
-        "0x761eb4593abc7603cf0b5ea95d3661bd",
-        "0x35ca47a1892c4524442a83fdc5231d3d",
-        "0x289f4c7339489b0d07c8716fbf169c74",
-        "0x75ec671be4712c1ce838fff26ef1122d",
-        "0xab650e5529ec2ce4147efe135a061eb1",
-        "0xe0e637747620e8c1c0ef440b99eb9ce7",
-        "0x94c0e63214f027f2ddd3ea463e44beb8",
-        "0x8548626524a60410aee37ee400d237fc",
-        "0xd80eb32a857a1f84b23801f6e4242459",
-        "0x4853cb0907651c681f1dfbab0646a828",
-        "0xecd1edccd4844736d8a8e01d4ab21e59",
-        "0xfb58a3ad252f9d576dcd1cfb23d32b89",
-        "0x583b5070f416adbbf796976b2ca27066",
-        "0x259d6fdcd7c3e46dd1a57ae64abda536",
-        "0xd0c6caf2ce368aa85881e8c3bca18192",
-        "0x7d54a3c9d517fba4ffb88cace0276c43",
-        "0x630201121608bdec230db5d012bacfb4",
-        "0x0da36e18ac524cab0cbd44ed0e70bf0e",
-        "0x864cf4a44dfa1f5419a85613e03340b3",
-        "0xd0369950eb82302e887caaca083d31b7",
-        "0x2993e04f04c9b8476e92871886d88d7a",
-        "0xdd49abb10a5bfaff4503b3a31874ac65",
-        "0x96f5bb80bb703cd6b940b0fab926195a",
-        "0x10e2c9baae90477c9be2f10365c29130",
-        "0x696469c514035c0cdf657865a76c8b05",
-        "0xe988c9b6348ae392d81e9d224c608247",
-        "0x81a816b9971534a48e6ec21994b78c81",
-        "0x5498cb9019ba94f896e2c04140cd036a",
-        "0x17fa73eaa092e4bce97e3ba4b770a0b8",
-        "0xe8c7b08816fc5215dfbe44cd46b47dec",
-        "0xc30789092db881251b0c5f7373e0c6f0",
-        "0xf397a1ac039c5e8bc374d1fd03568042",
-        "0x33ec1f25215eae69085a3fbf7a6b27fa",
-        "0xf6fdd17ce7427518d0631e269924f45b",
-        "0x036c902bf005559ba3082e5f2201e614",
-        "0x1fc45e655afc624fb90a7e0795b20b86",
-        "0xbc94ffd5e4f606a12f0c0425d7bf1013",
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-        "0xdbd55facc2eed4edae760a2ba92b4f39",
-        "0xf0e079daee7e4fae706c60345eaed7c6",
-        "0x00cd47758ac9dfe055865748f9f15b3a",
-        "0x5bb13e4d95fd1a1d551a0a8bbb724fbb",
-        "0x2ab38207d22885d80753f77eb8f11188",
-        "0x77af57a3e73852729f602770889d41f6",
-        "0x4e76a9575455c544259f6fa4dc28ec73",
-        "0xdced4535167e2f1ff0075e1fbca1f32b",
-        "0x94ac1540daf6ee75412dfedf521ac26b",
-        "0xa5f4edb22058795428c0e3f0984c4e42",
-        "0xc21b458e1b2973ad8d1a42865476e420",
-        "0xb8edf8bfd4fa0dcd9d68ca62de7f8163",
-        "0x8ca26ec2b20aaa2a003f4732b133d55e",
-        "0x518a1c489f3d366a6175a6c27caedb6d",
-        "0x11aa2bd74ac3e01a7ee5d413d3607681",
-        "0x3f2e4621aff23efdbe33e8c828c4d45a",
-        "0xff373231626f5dbcb6f1e0216aaec0ba",
-        "0xd400fa2884977ede9fb3667d23d984db",
-        "0x3ec403699e9f2e18d23f8e777cafa676",
-        "0xb6d0a777a0ce6e68f7bdeb79f37ae378",
-        "0x9e20d21eaa17f971543fe70ac15df078",
-        "0x8566b7226d025a7fcd4d61a7cb76edef",
-        "0x86d6b187f841cb3fcc92a27060e8f9ea",
-        "0xbf8d2e422a91c28cc445cb08a87bc401",
-        "0x0d64d2fbbad9c1b0530052ea47d4539b",
-        "0x0d5279a8100c0a044cf13882942f3c5e",
-        "0x4d914c7455896b6aeafbfaf5bbb7c69f",
-        "0x34859258bb4bac5923fb3c73c8e95fbb",
-        "0xcb2409f400cef34f88c7f29b731d7d59",
-        "0x7e9bc66a6bc2a5c5692306db1b6c474f",
-        "0x9b125466b31b3e4275b9c3f477ad9bb4",
-        "0x0682605f164269183277a0bfa1a7aa86",
-        "0xfdf029dca743acf24f4cbebbc846e990",
-        "0x4e5fa1902e699e059e6ac657585525f3",
-        "0xc70fced2684c45f39a227f1b0e6a2639",
-        "0x2e8ca3caf417021d3209da66f0d125b8",
-        "0x18a51613c5ae13e32c5bcf4965b78583",
-        "0x402ece445768d17f2790dc0cdbf7f9fa",
-        "0x7ef9cfe23a9f2d9b5fa10cc91e601f1c",
-        "0xba2dd4d240fbd92f1d46cd90a63cb301",
-        "0x29cff10b881311ce6292a765b9086853",
-        "0x9a016ffcb23883d0328d0183e035ed18",
-        "0xffcbd9d2ef2912e64d811c45700fcaec",
-        "0x0ce6dccd903d0e4809ad3e300da7a455",
-        "0x846bc24d47b884f73346f81788688374",
-        "0xbb5094794e59876aa8301adb7126a2c3",
-        "0xb8f55aa699f64d44a2c944246686298a",
-        "0xb824a33ef385a5293d2570326a7227c3",
-        "0xa9d724a77e1f87aaec95df4050649b1b",
-        "0xc0a76950b77ced186bdd52e1dc3ba8b7",
-        "0x38c28c14bfa88693bf306588e08ae09f",
-        "0x04f9280b95c9812a51299359c770b913",
-        "0x94f78ea30bbbc5024bc05c06fc80a3a3",
-        "0x57e2ff4bcecff754849ea5c15684df75",
-        "0x9064b534593c012115617b850814974e",
-        "0x96b84b73c9bd4fe4686b9c5e47057279",
-        "0x79422e6008157852225f4960b952ce94",
-        "0x16e6b48564c7f62bb0d6a5d8562f71e1",
-        "0x9ba574947f637db0922b5a3411b39073",
-        "0x9c0ea3342b493673eb6ba7c0f3e33001",
-        "0x13219cddbc960a443b68f73348bdabb7",
-        "0x9612e953f80bcec6fd9c11e80642e07c",
-        "0x7e1a63fe5d68d66440f69212f0d06a7d",
-        "0x29388bc27f370d522dc179cfddcefcf0",
-        "0x22d098169c99d823adbc0279467cdd55",
-        "0x8cb0763f7a0ec5aa0761bfbb049fe2c1",
-        "0xccd344c4e3b6b028253a724d7014b831",
-        "0x8a409beab35999899ae65a0b4519e081",
-        "0x472da5358a5c51cbe55d4beadfa8d2ef",
-        "0xaf3eb432bc504607d20dd9b93fdf0382",
-        "0x15652ee8ba674184c53238346e7c2818",
-        "0x1038ca6c9eca2e2240ae40dcee168d7f",
-        "0x8f99e10b2925562e1061f7ad3a7f591e",
-        "0xec7875f6e017ec743ce364f257c79a70",
-        "0xdf953a9008d4f96c63da1993439a81c6",
-        "0xc44353ffa531580a5bbbbb8faa0855cd",
-        "0x4d2020a9a71a5351f415552099e2760a",
-        "0x39c14bb1c059f585fd4ba723dc1c66ca",
-        "0x4fbbf8b5795d2a8b7a83b3768869b5e1",
-        "0x8210215bfb4ace609e0fb0973ac511de",
-        "0x16fba09f0e8ecd584d0524a4c5723a8b",
-        "0x8619f37f7511cec0777ab7efe07ae451",
-        "0xa4ff22443285056f6e6be1bba3a886e8",
-        "0xa13fb0480ab2fb0cdb3a1373694323f9",
-        "0xc9b9c6a82b04c72d8970ec3e015c2607",
-        "0x064449044bd883c413684d6d29eef904",
-        "0xb1896f87a9ae66ec233de69dd5b5fc50",
-        "0x4d39896b61686334603e8accbb0288ff",
-        "0xe0687ca2fc99a162a61e83da0f54dfea",
-        "0xe12c1c535fc6f6498de80b0da9094c80",
-        "0x4731d5e4b9421510c3ddf73d87a9c4a3",
-        "0x247a38f6f0fcc658fc35057787bd9054",
-        "0x8974ef985b8dc87bbf14f16657f3bd30",
-        "0x89073a016fd5c618095291915c5912e1",
-        "0x86f16e07d569b7570af0031fb6c36af4",
-        "0x12d5be9063d155f9df791be6c35f1865",
-        "0x8962f4ccba3d7cb61f0a501d474f9906",
-        "0xefee4030b687d7ae3eb2d27673f65343",
-        "0x2464c007ea23451f778ed2bf0c017b7b",
-        "0x6dbe36b12f350e01689f6295d686b8b9",
-        "0x025cafd23d97228050066bf4128a4fa3",
-        "0xde0bb757deba77755678381d08a12bf1",
-        "0x1c542ed68bb6f818c4bee47703298d08",
-        "0x8178b368306f2ae1abd7e68583d67dad",
-        "0xcb4d956080d6f8bb617a2d51e5ac1296",
-        "0x06dc4c3c0f4d7c5f4784f3e865433730",
-        "0x7134fde96ed353c8d6ac24ec7efccaf9",
-        "0x1466a522411631d6c9c5c706558985c1",
-        "0x95e26e89a1c7b9df6a7c2c56223292b5",
-        "0x6555486abac007b7fadaf6e04f896239",
-        "0x472a1d76a9734964c42b92b36993ed49",
-        "0xcea176b441e44750555739f29e045e74",
-        "0xfeb06e244cdbf8e8cb1d5fab49c6e583",
-        "0x499c5a7fc475c7ab9e888a9f8aeb5765",
-        "0xd3b05f45181c0b1b4a0354ffe3d95c9a",
-        "0xb768bcc1492f03e1819620dfa2e130d5",
-        "0xa38c13579500a7c7a90c80153ab22f4f",
-        "0xadb73d387c59a6ba8eff18a6b0320ca4",
-        "0x09c8e0bdd1ba73602063d89d11ff5210",
-        "0xecab8f890f1f3d6ff564eebab034ebb3",
-        "0x9823e2e8911c5a0fb2ff6feb52be2c0f",
-        "0x4fa03dbaabcf99e71903f3177444bfaa",
-        "0xa4c9667d00998d262c47f6d2c79f43c2",
-        "0xb3e65ee26384d25bc7750b3f37e72883",
-        "0x7dea46d1a183f3070760eee0bf5fce3c",
-        "0xecb2963c22a757569fe659635f4b0243",
-        "0x9ed968203144981e6e697db052910c27",
-        "0x4aa6ca6ebef942d8766065b2e590fd32"
-    ]
-}
\ No newline at end of file
diff --git a/environment/lib/near2eth-watchdog.js b/environment/lib/watchdog.js
similarity index 97%
rename from environment/lib/near2eth-watchdog.js
rename to environment/lib/watchdog.js
index a5e685c90..707bb4e19 100644
--- a/environment/lib/near2eth-watchdog.js
+++ b/environment/lib/watchdog.js
@@ -1,5 +1,4 @@
 const Web3 = require('web3')
-const BN = require('bn.js')
 const fs = require('fs')
 const { RainbowConfig } = require('./config')
 const {
@@ -12,7 +11,7 @@ const Tx = require('ethereumjs-tx').Transaction
 
 const SLOW_TX_ERROR_MSG = 'transaction not executed within 5 minutes'
 
-class Near2EthWatchdog {
+class Watchdog {
   async initialize() {
     // @ts-ignore
     this.robustWeb3 = new RobustWeb3(RainbowConfig.getParam('eth-node-url'))
@@ -121,4 +120,4 @@ class Near2EthWatchdog {
   }
 }
 
-exports.Near2EthWatchdog = Near2EthWatchdog
+exports.Watchdog = Watchdog
diff --git a/environment/package.json b/environment/package.json
index 99622efd2..431245061 100644
--- a/environment/package.json
+++ b/environment/package.json
@@ -5,7 +5,7 @@
   "main": "index.js",
   "bin": {
     "rainbow-bridge": "./index.js",
-    "rbbr": "./index.js"
+    "rainbow": "./index.js"
   },
   "author": "Near Inc.",
   "repository": {
@@ -33,7 +33,7 @@
     "merkle-patricia-tree": "^3.0.0",
     "near-api-js": "^0.26.0",
     "pm2": "^4.4.0",
-    "pm2-promise": "near/pm2-promise#13e6e691d8069392981439ad0d19d222c010b010",
+    "pm2-promise": "^2.0.1",
     "promisfy": "^1.2.0",
     "web3": "=1.2.6"
   },
diff --git a/environment/scripts/prepare.sh b/environment/scripts/prepare.sh
index 720a48ef6..5a0668237 100644
--- a/environment/scripts/prepare.sh
+++ b/environment/scripts/prepare.sh
@@ -14,17 +14,17 @@ eval NEARUP_LOGS=~/.nearup/localnet-logs
 
 mkdir -p $RAINBOW_DIR
 mkdir -p $RAINBOW_DIR/logs/ganache
-mkdir -p $RAINBOW_DIR/logs/near-relay
-mkdir -p $RAINBOW_DIR/logs/eth-relay
-mkdir -p $RAINBOW_DIR/logs/near-watchdog
+mkdir -p $RAINBOW_DIR/logs/near2eth-relay
+mkdir -p $RAINBOW_DIR/logs/eth2near-relay
+mkdir -p $RAINBOW_DIR/logs/watchdog
 touch $RAINBOW_DIR/logs/ganache/out.log
 touch $RAINBOW_DIR/logs/ganache/err.log
-touch $RAINBOW_DIR/logs/near-relay/out.log
-touch $RAINBOW_DIR/logs/near-relay/err.log
-touch $RAINBOW_DIR/logs/eth-relay/out.log
-touch $RAINBOW_DIR/logs/eth-relay/err.log
-touch $RAINBOW_DIR/logs/near-watchdog/out.log
-touch $RAINBOW_DIR/logs/near-watchdog/err.log
+touch $RAINBOW_DIR/logs/near2eth-relay/out.log
+touch $RAINBOW_DIR/logs/near2eth-relay/err.log
+touch $RAINBOW_DIR/logs/eth2near-relay/out.log
+touch $RAINBOW_DIR/logs/eth2near-relay/err.log
+touch $RAINBOW_DIR/logs/watchdog/out.log
+touch $RAINBOW_DIR/logs/watchdog/err.log
 
 if test -z "$LOCAL_CORE_SRC"
 then
diff --git a/environment/yarn.lock b/environment/yarn.lock
index 0a665003a..ca71ebc80 100644
--- a/environment/yarn.lock
+++ b/environment/yarn.lock
@@ -4926,9 +4926,10 @@ pm2-multimeter@^0.1.2:
   dependencies:
     charm "~0.1.1"
 
-pm2-promise@near/pm2-promise#13e6e691d8069392981439ad0d19d222c010b010:
+pm2-promise@^2.0.1:
   version "2.0.1"
-  resolved "https://codeload.github.com/near/pm2-promise/tar.gz/13e6e691d8069392981439ad0d19d222c010b010"
+  resolved "https://registry.yarnpkg.com/pm2-promise/-/pm2-promise-2.0.1.tgz#582b7faad84babe311e46c3130b61a6a0695ed5f"
+  integrity sha512-7QWgJFeB9JsTy78ZonqnhdtJ3W9QjVTDZ7G0EC99WXv/fEfmywKxjboN8F9VL+OqB70Dm3DQ0riUqTMhPgiMIw==
   dependencies:
     pm2 "^4.4.0"
 
diff --git a/libs-sol/build_all.sh b/libs-sol/build_all.sh
index 190a92716..567d64bb8 100755
--- a/libs-sol/build_all.sh
+++ b/libs-sol/build_all.sh
@@ -3,14 +3,14 @@
 # Exit script as soon as a command fails.
 set -e
 
-# Build Near2EthClient contract
-echo "Building Near2EthClient and ED25519 contracts"
+# Build NearOnEthClient contract
+echo "Building NearOnEthClient and ED25519 contracts"
 pushd "nearbridge"
 yarn
 ./dist.sh
 popd
 
-echo "Building Near2EthProver contract"
+echo "Building NearOnEthProver contract"
 pushd "nearprover"
 yarn
 ./dist.sh