diff --git a/.gitignore b/.gitignore
index 3f27cdc00f07..68ebda9de741 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,6 +14,7 @@
 */**/*tx_database*
 */**/*dapps*
 build/_vendor/pkg
+data
 
 #*
 .#*
diff --git a/Makefile b/Makefile
index d736ef61c001..8899a463dc6c 100644
--- a/Makefile
+++ b/Makefile
@@ -13,6 +13,8 @@ geth:
 	@echo "Done building."
 	@echo "Run \"$(GOBIN)/geth\" to launch geth."
 
+start:; ./start.sh
+
 all:
 	$(GORUN) build/ci.go install
 
@@ -35,4 +37,4 @@ devtools:
 	env GOBIN= go install github.com/golang/protobuf/protoc-gen-go@latest
 	env GOBIN= go install ./cmd/abigen
 	@type "solc" 2> /dev/null || echo 'Please install solc'
-	@type "protoc" 2> /dev/null || echo 'Please install protoc'
+	@type "protoc" 2> /dev/null || echo 'Please install protoc'
\ No newline at end of file
diff --git a/core/txpool/legacypool/legacypool.go b/core/txpool/legacypool/legacypool.go
index e71204185f03..94314eeca679 100644
--- a/core/txpool/legacypool/legacypool.go
+++ b/core/txpool/legacypool/legacypool.go
@@ -304,6 +304,9 @@ func (pool *LegacyPool) Init(gasTip *big.Int, head *types.Header, reserve txpool
 	statedb, err := pool.chain.StateAt(head.Root)
 	if err != nil {
 		statedb, err = pool.chain.StateAt(types.EmptyRootHash)
+		if err != nil {
+			statedb, err = pool.chain.StateAtBlockNumber(head.Number.Uint64())
+		}
 	}
 	if err != nil {
 		return err
diff --git a/eth/api_miner_builder.go b/eth/api_miner_builder.go
new file mode 100644
index 000000000000..72d1fdd2ca4c
--- /dev/null
+++ b/eth/api_miner_builder.go
@@ -0,0 +1,54 @@
+package eth
+
+import (
+	"errors"
+	"time"
+
+	"github.com/ethereum/go-ethereum/beacon/engine"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/miner"
+)
+
+// BuildBlock is a convenience function to build a block.
+func (s *MinerAPI) BuildBlock(attrs *miner.BuildPayloadArgs) (*engine.ExecutionPayloadEnvelope, error) {
+	// Send a request to generate a full block in the background.
+	// The result can be obtained via the returned channel.
+	args := &miner.BuildPayloadArgs{
+		Parent:       attrs.Parent,
+		Timestamp:    uint64(attrs.Timestamp),
+		FeeRecipient: attrs.FeeRecipient,
+		Random:       attrs.Random,
+		Withdrawals:  attrs.Withdrawals,
+		BeaconRoot:   attrs.BeaconRoot,
+	}
+
+	payload, err := s.e.Miner().BuildPayload(args)
+	if err != nil {
+		log.Error("Failed to build payload", "err", err)
+		return nil, err
+	}
+
+	resCh := make(chan *engine.ExecutionPayloadEnvelope, 1)
+	go func() {
+		resCh <- payload.ResolveFull()
+	}()
+
+	timer := time.NewTimer(4 * time.Second)
+	defer timer.Stop()
+
+	select {
+	case payload := <-resCh:
+		if payload == nil {
+			return nil, errors.New("received nil payload from sealing work")
+		}
+		return payload, nil
+	case <-timer.C:
+		log.Error("timeout waiting for block", "parent hash", attrs.Parent)
+		return nil, errors.New("timeout waiting for block result")
+	}
+}
+
+func (s *MinerAPI) Etherbase() common.Address {
+	return s.e.etherbase
+}
diff --git a/genesis.json b/genesis.json
new file mode 100644
index 000000000000..f3f4ffb93962
--- /dev/null
+++ b/genesis.json
@@ -0,0 +1,61 @@
+{
+    "config": {
+        "chainId": 7,
+        "homesteadBlock": 0,
+        "daoForkBlock": 0,
+        "daoForkSupport": true,
+        "eip150Block": 0,
+        "eip155Block": 0,
+        "eip158Block": 0,
+        "byzantiumBlock": 0,
+        "constantinopleBlock": 0,
+        "petersburgBlock": 0,
+        "istanbulBlock": 0,
+        "muirGlacierBlock": 0,
+        "berlinBlock": 0,
+        "londonBlock": 0,
+        "arrowGlacierBlock": 0,
+        "grayGlacierBlock": 0,
+        "mergeNetsplitBlock": 0,
+        "shanghaiTime": 0,
+        "terminalTotalDifficulty": 0,
+        "terminalTotalDifficultyPassed": true
+    },
+    "coinbase": "0x0000000000000000000000000000000000000000",
+    "difficulty": "0x20000",
+    "extraData": "0x0000000000000000000000000000000000000000000000000000000000000000658bdf435d810c91414ec09147daa6db624063790000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+    "gasLimit": "0x2fefd8",
+    "nonce": "0x0000000000000000",
+    "timestamp": "0x65307BE5",
+    "alloc": {
+        "20f33ce90a13a4b5e7697e3544c3083b8f8a51d4": {
+            "balance": "0x123450000000000000000"
+        },
+        "0161e041aad467a890839d5b08b138c1e6373072": {
+            "balance": "0x123450000000000000000"
+        },
+        "87da6a8c6e9eff15d703fc2773e32f6af8dbe301": {
+            "balance": "0x123450000000000000000"
+        },
+        "b97de4b8c857e4f6bc354f226dc3249aaee49209": {
+            "balance": "0x123450000000000000000"
+        },
+        "c5065c9eeebe6df2c2284d046bfc906501846c51": {
+            "balance": "0x123450000000000000000"
+        },
+        "0000000000000000000000000000000000000314": {
+            "balance": "0x0",
+            "code": "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",
+            "storage": {
+                "0x0000000000000000000000000000000000000000000000000000000000000000": "0x1234",
+                "0x6661e9d6d8b923d5bbaab1b96e1dd51ff6ea2a93520fdc9eb75d059238b8c5e9": "0x01"
+            },
+            "nonce": "0x1"
+        },
+        "0000000000000000000000000000000000000315": {
+            "balance": "0x9999999999999999999999999999999",
+            "code": "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",
+            "nonce": "0x1"
+        }
+    }
+}
\ No newline at end of file
diff --git a/jwt.hex b/jwt.hex
new file mode 100644
index 000000000000..824a154dbdd8
--- /dev/null
+++ b/jwt.hex
@@ -0,0 +1 @@
+ba6d51b12d7854243e2f91fc66ea419fc587f7f78cc63e6f2925df1469962a60
diff --git a/jwt.txt b/jwt.txt
new file mode 100644
index 000000000000..863bdad2f5fb
--- /dev/null
+++ b/jwt.txt
@@ -0,0 +1 @@
+abdf6f2f080ea59ce6874d72f1e801d25578dacde4e624a1f034bedd1be76a92
diff --git a/miner/worker.go b/miner/worker.go
index f68070281454..b72998f55293 100644
--- a/miner/worker.go
+++ b/miner/worker.go
@@ -456,7 +456,7 @@ func (w *worker) newWorkLoop(recommit time.Duration) {
 		case head := <-w.chainHeadCh:
 			clearPending(head.Block.NumberU64())
 			timestamp = time.Now().Unix()
-			commit(commitInterruptNewHead)
+			// commit(commitInterruptNewHead)
 
 		case <-timer.C:
 			// If sealing is running resubmit a new work cycle periodically to pull in
@@ -467,7 +467,7 @@ func (w *worker) newWorkLoop(recommit time.Duration) {
 					timer.Reset(recommit)
 					continue
 				}
-				commit(commitInterruptResubmit)
+				// commit(commitInterruptResubmit)
 			}
 
 		case interval := <-w.resubmitIntervalCh:
diff --git a/password.txt b/password.txt
new file mode 100644
index 000000000000..f3097ab13082
--- /dev/null
+++ b/password.txt
@@ -0,0 +1 @@
+password
diff --git a/start.sh b/start.sh
new file mode 100755
index 000000000000..3774b42b30c9
--- /dev/null
+++ b/start.sh
@@ -0,0 +1,6 @@
+make
+rm -rf data
+mkdir data
+mkdir data/node1
+./build/bin/geth --datadir data/node1/ init genesis.json
+./build/bin/geth --datadir data/node1 --ipcdisable --port 30301 --networkid 7 --http --http.addr 'localhost' --http.port 8545 --http.api 'admin,engine,debug,eth,miner,net,personal,txpool,web3' --allow-insecure-unlock --syncmode full
\ No newline at end of file