diff --git a/.gitignore b/.gitignore
index 2c69fbb..8e77007 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,4 +22,6 @@ eth-contracts/node_modules
 /.dione-config.toml
 /.dione-config-2.toml
 /.dione-config-3.toml
+/.dione-config-4.toml
+.bootstrap_privkey
 eth-contracts/build
\ No newline at end of file
diff --git a/consensus/miner.go b/consensus/miner.go
index 606ac1c..3326c46 100644
--- a/consensus/miner.go
+++ b/consensus/miner.go
@@ -6,7 +6,7 @@ import (
 	"sync"
 
 	"github.com/Secured-Finance/dione/beacon"
-	"github.com/Secured-Finance/dione/contracts/oracleEmitter"
+	oracleEmitter "github.com/Secured-Finance/dione/contracts/oracleemitter"
 	"github.com/Secured-Finance/dione/solana"
 	solTypes "github.com/Secured-Finance/dione/solana/types"
 
diff --git a/ethclient/ethereum.go b/ethclient/ethereum.go
index 3ce58b8..e0c542e 100644
--- a/ethclient/ethereum.go
+++ b/ethclient/ethereum.go
@@ -7,7 +7,7 @@ import (
 	"github.com/Secured-Finance/dione/contracts/aggregator"
 	"github.com/Secured-Finance/dione/contracts/dioneStaking"
 	stakingContract "github.com/Secured-Finance/dione/contracts/dioneStaking"
-	oracleEmitter "github.com/Secured-Finance/dione/contracts/oracleEmitter"
+	oracleEmitter "github.com/Secured-Finance/dione/contracts/oracleemitter"
 	"github.com/ethereum/go-ethereum/accounts/abi/bind"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/crypto"
@@ -81,8 +81,8 @@ func (c *EthereumClient) Initialize(ctx context.Context, url, privateKey, oracle
 		TransactOpts: bind.TransactOpts{
 			From:     authTransactor.From,
 			Signer:   authTransactor.Signer,
-			GasLimit: 0,   // 0 automatically estimates gas limit
-			GasPrice: nil, // nil automatically suggests gas price
+			GasLimit: 200000, // 0 automatically estimates gas limit
+			GasPrice: nil,    // nil automatically suggests gas price
 			Context:  context.Background(),
 		},
 	}
@@ -96,8 +96,8 @@ func (c *EthereumClient) Initialize(ctx context.Context, url, privateKey, oracle
 		TransactOpts: bind.TransactOpts{
 			From:     authTransactor.From,
 			Signer:   authTransactor.Signer,
-			GasLimit: 0,   // 0 automatically estimates gas limit
-			GasPrice: nil, // nil automatically suggests gas price
+			GasLimit: 200000, // 0 automatically estimates gas limit
+			GasPrice: nil,    // nil automatically suggests gas price
 			Context:  context.Background(),
 		},
 	}
@@ -111,8 +111,8 @@ func (c *EthereumClient) Initialize(ctx context.Context, url, privateKey, oracle
 		TransactOpts: bind.TransactOpts{
 			From:     authTransactor.From,
 			Signer:   authTransactor.Signer,
-			GasLimit: 0,   // 0 automatically estimates gas limit
-			GasPrice: nil, // nil automatically suggests gas price
+			GasLimit: 200000,                 // 0 automatically estimates gas limit
+			GasPrice: big.NewInt(1860127603), // nil automatically suggests gas price
 			Context:  context.Background(),
 		},
 	}
diff --git a/node/ethereum.go b/node/ethereum.go
index 819f09b..6dcd5b3 100644
--- a/node/ethereum.go
+++ b/node/ethereum.go
@@ -3,7 +3,6 @@ package node
 import (
 	"context"
 
-	"github.com/Secured-Finance/dione/consensus"
 	"github.com/sirupsen/logrus"
 )
 
@@ -23,21 +22,24 @@ func (n *Node) subscribeOnEthContracts(ctx context.Context) {
 					if err != nil {
 						logrus.Fatal("Error with mining algorithm, exiting... ", err)
 					}
+					if task == nil {
+						continue
+					}
 					logrus.Info("BlockHash for Solana transaction: ", task.BlockHash)
 					logrus.Info("Started new consensus round with ID: ", task.BlockHash)
 					n.ConsensusManager.NewTestConsensus(string(task.BlockHash), task.BlockHash, func(finalData string) {
 						if finalData != string(task.BlockHash) {
-							logrus.Warn("Expected final data to be %s, not %s", finalData)
+							logrus.Warnf("Expected final data to be %s, not %s", task.BlockHash, finalData)
+							return
 						}
-					})
-
-					if n.ConsensusManager.Consensuses[task.BlockHash].State == consensus.ConsensusCommitted {
 						logrus.Info("Consensus ID: ", task.BlockHash, " was successfull")
 						logrus.Info("Submitting on-chain result: ", task.BlockHash, "for consensus ID: ", task.BlockHash)
-						if err := n.Ethereum.SubmitRequestAnswer(event.RequestID, task.BlockHash, event.CallbackAddress, event.CallbackMethodID); err != nil {
-							logrus.Warn("Can't submit request to ethereum chain: ", err)
+						if task.Miner == n.Host.ID() {
+							if err := n.Ethereum.SubmitRequestAnswer(event.RequestID, task.BlockHash, event.CallbackAddress, event.CallbackMethodID); err != nil {
+								logrus.Warn("Can't submit request to ethereum chain: ", err)
+							}
 						}
-					}
+					})
 				}
 			case <-ctx.Done():
 				break EventLoop
diff --git a/node/node.go b/node/node.go
index 7f30ad4..6a3617e 100644
--- a/node/node.go
+++ b/node/node.go
@@ -5,6 +5,8 @@ import (
 	"crypto/rand"
 	"flag"
 	"fmt"
+	"io/ioutil"
+	"os"
 	"time"
 
 	"github.com/Secured-Finance/dione/solana"
@@ -31,7 +33,7 @@ import (
 )
 
 const (
-	DefaultPEXUpdateTime = 1 * time.Minute
+	DefaultPEXUpdateTime = 6 * time.Second
 )
 
 type Node struct {
@@ -240,22 +242,37 @@ func Start() error {
 	if *verbose {
 		logrus.SetLevel(logrus.DebugLevel)
 	} else {
-		logrus.SetLevel(logrus.InfoLevel)
+		logrus.SetLevel(logrus.DebugLevel)
 	}
 	if err != nil {
 		logrus.Panic(err)
 	}
 
-	privKey, err := generatePrivateKey()
-	if err != nil {
-		logrus.Fatal(err)
+	var privateKey crypto.PrivKey
+
+	if node.Config.IsBootstrap {
+		if _, err := os.Stat(".bootstrap_privkey"); os.IsNotExist(err) {
+			privateKey, err = generatePrivateKey()
+			if err != nil {
+				logrus.Fatal(err)
+			}
+
+			f, _ := os.Create(".bootstrap_privkey")
+			r, _ := privateKey.Raw()
+			f.Write(r)
+		} else {
+			pkey, _ := ioutil.ReadFile(".bootstrap_privkey")
+			privateKey, _ = crypto.UnmarshalEd25519PrivateKey(pkey)
+		}
+	} else {
+		privateKey, err = generatePrivateKey()
 	}
 
 	ctx, ctxCancel := context.WithCancel(context.Background())
 	node.GlobalCtx = ctx
 	node.GlobalCtxCancel = ctxCancel
 
-	node.setupNode(ctx, privKey, DefaultPEXUpdateTime)
+	node.setupNode(ctx, privateKey, DefaultPEXUpdateTime)
 	for {
 		select {
 		case <-ctx.Done():
diff --git a/pb/pubsub_router.go b/pb/pubsub_router.go
index 2367807..e3aecfd 100644
--- a/pb/pubsub_router.go
+++ b/pb/pubsub_router.go
@@ -30,7 +30,7 @@ func NewPubSubRouter(h host.Host, oracleTopic string) *PubSubRouter {
 		handlers:      make(map[string][]Handler),
 	}
 
-	pb, err := pubsub.NewGossipSub(
+	pb, err := pubsub.NewFloodSub(
 		context.TODO(),
 		psr.node, //pubsub.WithMessageSigning(true),
 		//pubsub.WithStrictSignatureVerification(true),