diff --git a/core/types/data_blob_tx.go b/core/types/data_blob_tx.go
index c356331dbc5c..81b52f0ebb86 100644
--- a/core/types/data_blob_tx.go
+++ b/core/types/data_blob_tx.go
@@ -10,7 +10,6 @@ import (
 	"github.com/holiman/uint256"
 	"github.com/protolambda/ztyp/codec"
 	"github.com/protolambda/ztyp/conv"
-	"github.com/protolambda/ztyp/tree"
 	. "github.com/protolambda/ztyp/view"
 )
 
@@ -58,12 +57,6 @@ func (*AddressSSZ) FixedLength() uint64 {
 	return 20
 }
 
-func (addr *AddressSSZ) HashTreeRoot(hFn tree.HashFn) tree.Root {
-	var out tree.Root
-	copy(out[0:20], addr[:])
-	return out
-}
-
 // AddressOptionalSSZ implements Union[None, Address]
 type AddressOptionalSSZ struct {
 	Address *AddressSSZ
@@ -112,14 +105,6 @@ func (*AddressOptionalSSZ) FixedLength() uint64 {
 	return 0
 }
 
-func (ao *AddressOptionalSSZ) HashTreeRoot(hFn tree.HashFn) tree.Root {
-	if ao.Address == nil {
-		return hFn(tree.Root{}, tree.Root{0: 0})
-	} else {
-		return hFn(ao.Address.HashTreeRoot(hFn), tree.Root{0: 1})
-	}
-}
-
 type TxDataView []byte
 
 func (tdv *TxDataView) Deserialize(dr *codec.DecodingReader) error {
@@ -138,10 +123,6 @@ func (tdv *TxDataView) FixedLength() uint64 {
 	return 0
 }
 
-func (tdv TxDataView) HashTreeRoot(hFn tree.HashFn) tree.Root {
-	return hFn.ByteListHTR(tdv, MAX_CALLDATA_SIZE)
-}
-
 func (tdv TxDataView) MarshalText() ([]byte, error) {
 	return conv.BytesMarshalText(tdv[:])
 }
@@ -214,16 +195,6 @@ func (vhv *VersionedHashesView) FixedLength() uint64 {
 	return 0 // it's a list, no fixed length
 }
 
-func (vhv VersionedHashesView) HashTreeRoot(hFn tree.HashFn) tree.Root {
-	length := uint64(len(vhv))
-	return hFn.ComplexListHTR(func(i uint64) tree.HTR {
-		if i < length {
-			return (*tree.Root)(&vhv[i])
-		}
-		return nil
-	}, length, MAX_VERSIONED_HASHES_LIST_SIZE)
-}
-
 type StorageKeysView []common.Hash
 
 func (skv *StorageKeysView) Deserialize(dr *codec.DecodingReader) error {
@@ -242,16 +213,6 @@ func (skv *StorageKeysView) FixedLength() uint64 {
 	return 0 // it's a list, no fixed length
 }
 
-func (skv StorageKeysView) HashTreeRoot(hFn tree.HashFn) tree.Root {
-	length := uint64(len(skv))
-	return hFn.ComplexListHTR(func(i uint64) tree.HTR {
-		if i < length {
-			return (*tree.Root)(&skv[i])
-		}
-		return nil
-	}, length, MAX_ACCESS_LIST_STORAGE_KEYS)
-}
-
 type AccessTupleView AccessTuple
 
 func (atv *AccessTupleView) Deserialize(dr *codec.DecodingReader) error {
@@ -270,10 +231,6 @@ func (atv *AccessTupleView) FixedLength() uint64 {
 	return 0
 }
 
-func (atv *AccessTupleView) HashTreeRoot(hFn tree.HashFn) tree.Root {
-	return hFn.HashTreeRoot((*AddressSSZ)(&atv.Address), (*StorageKeysView)(&atv.StorageKeys))
-}
-
 type AccessListView AccessList
 
 func (alv *AccessListView) Deserialize(dr *codec.DecodingReader) error {
@@ -301,16 +258,6 @@ func (alv *AccessListView) FixedLength() uint64 {
 	return 0
 }
 
-func (alv AccessListView) HashTreeRoot(hFn tree.HashFn) tree.Root {
-	length := uint64(len(alv))
-	return hFn.ComplexListHTR(func(i uint64) tree.HTR {
-		if i < length {
-			return (*AccessTupleView)(&alv[i])
-		}
-		return nil
-	}, length, MAX_ACCESS_LIST_SIZE)
-}
-
 type BlobTxMessage struct {
 	ChainID          Uint256View
 	Nonce            Uint64View
@@ -350,10 +297,6 @@ func (stx *SignedBlobTx) FixedLength() uint64 {
 	return 0
 }
 
-func (tx *BlobTxMessage) HashTreeRoot(hFn tree.HashFn) tree.Root {
-	return hFn.HashTreeRoot(&tx.ChainID, &tx.Nonce, &tx.GasTipCap, &tx.GasFeeCap, &tx.Gas, &tx.To, &tx.Value, &tx.Data, &tx.AccessList, &tx.MaxFeePerDataGas, &tx.BlobVersionedHashes)
-}
-
 // copy creates a deep copy of the transaction data and initializes all fields.
 func (tx *BlobTxMessage) copy() *BlobTxMessage {
 	cpy := &BlobTxMessage{
diff --git a/core/types/hashing.go b/core/types/hashing.go
index c54f44ee5a66..0bc049206dc5 100644
--- a/core/types/hashing.go
+++ b/core/types/hashing.go
@@ -23,7 +23,7 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/rlp"
-	"github.com/protolambda/ztyp/tree"
+	"github.com/protolambda/ztyp/codec"
 	"golang.org/x/crypto/sha3"
 )
 
@@ -59,15 +59,14 @@ func prefixedRlpHash(prefix byte, x interface{}) (h common.Hash) {
 	return h
 }
 
-// prefixedSSZHash writes the prefix into the hasher before SSZ hash-tree-root-ing x.
-// It's used for typed transactions.
-func prefixedSSZHash(prefix byte, x tree.HTR) (h common.Hash) {
+// prefixedSSZHash writes the prefix into the hasher before SSZ encoding x.  It's used for
+// computing the tx id & signing hashes of signed blob transactions.
+func prefixedSSZHash(prefix byte, obj codec.Serializable) (h common.Hash) {
 	sha := hasherPool.Get().(crypto.KeccakState)
 	defer hasherPool.Put(sha)
 	sha.Reset()
 	sha.Write([]byte{prefix})
-	htr := x.HashTreeRoot(tree.GetHashFn())
-	sha.Write(htr[:])
+	EncodeSSZ(sha, obj)
 	sha.Read(h[:])
 	return h
 }
diff --git a/core/types/transaction.go b/core/types/transaction.go
index 808fc81d2de1..7adc0682a88c 100644
--- a/core/types/transaction.go
+++ b/core/types/transaction.go
@@ -503,7 +503,7 @@ func (tx *Transaction) Hash() common.Hash {
 	case BlobTxType:
 		// TODO(eip-4844): We should remove this ugly switch by making hash()
 		// a part of the TxData interface
-		h = prefixedSSZHash(tx.Type(), &tx.inner.(*SignedBlobTx).Message)
+		h = prefixedSSZHash(tx.Type(), tx.inner.(*SignedBlobTx))
 	default:
 		h = prefixedRlpHash(tx.Type(), tx.inner)
 	}
diff --git a/go.mod b/go.mod
index a0c506b9e121..82cc93a253f6 100644
--- a/go.mod
+++ b/go.mod
@@ -33,7 +33,6 @@ require (
 	github.com/gorilla/websocket v1.4.2
 	github.com/graph-gophers/graphql-go v1.3.0
 	github.com/hashicorp/go-bexpr v0.1.10
-	github.com/hashicorp/golang-lru v0.5.5-0.20210104140557-80c98217689d
 	github.com/herumi/bls-eth-go-binary v1.28.1 // indirect
 	github.com/holiman/big v0.0.0-20221017200358-a027dc42d04e
 	github.com/holiman/bloomfilter/v2 v2.0.3
diff --git a/go.sum b/go.sum
index e3ab3f1c308e..afa21fa748b1 100644
--- a/go.sum
+++ b/go.sum
@@ -220,8 +220,6 @@ github.com/hashicorp/go-bexpr v0.1.10 h1:9kuI5PFotCboP3dkDYFr/wi0gg0QVbSNz5oFRpx
 github.com/hashicorp/go-bexpr v0.1.10/go.mod h1:oxlubA2vC/gFVfX1A6JGp7ls7uCDlfJn732ehYYg+g0=
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
-github.com/hashicorp/golang-lru v0.5.5-0.20210104140557-80c98217689d h1:dg1dEPuWpEqDnvIw251EVy4zlP8gWbsGj4BsUKCRpYs=
-github.com/hashicorp/golang-lru v0.5.5-0.20210104140557-80c98217689d/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4=
 github.com/herumi/bls-eth-go-binary v1.28.1 h1:fcIZ48y5EE9973k05XjE8+P3YiQgjZz4JI/YabAm8KA=
 github.com/herumi/bls-eth-go-binary v1.28.1/go.mod h1:luAnRm3OsMQeokhGzpYmc0ZKwawY7o87PUEP11Z7r7U=
 github.com/holiman/big v0.0.0-20221017200358-a027dc42d04e h1:pIYdhNkDh+YENVNi3gto8n9hAmRxKxoar0iE6BLucjw=
@@ -366,10 +364,6 @@ github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R
 github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
 github.com/prometheus/tsdb v0.7.1 h1:YZcsG11NqnK4czYLrWd9mpEuAJIHVQLwdrleYfszMAA=
 github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
-github.com/protolambda/go-kzg v0.0.0-20221121235515-3f3e1ef6beb7 h1:yzqsT6UIT17bmesiG9iB6+3cQkmMAtFjUffx5KrXgkk=
-github.com/protolambda/go-kzg v0.0.0-20221121235515-3f3e1ef6beb7/go.mod h1:7EhkBJFo/qJ9sToiW5baPqbyPo/TadVHn4iNdpwEW/w=
-github.com/protolambda/go-kzg v0.0.0-20221122014024-bb3fa3695412 h1:MQBDul/k5XDDYF5fVn18lNwkWKxpK93FbYeaum1b1UE=
-github.com/protolambda/go-kzg v0.0.0-20221122014024-bb3fa3695412/go.mod h1:7EhkBJFo/qJ9sToiW5baPqbyPo/TadVHn4iNdpwEW/w=
 github.com/protolambda/go-kzg v0.0.0-20221129234330-612948a21fb0 h1:DDaoou46n4krrbtDkymmqFAx2iqxatt2Sk+B1ZOM45A=
 github.com/protolambda/go-kzg v0.0.0-20221129234330-612948a21fb0/go.mod h1:7EhkBJFo/qJ9sToiW5baPqbyPo/TadVHn4iNdpwEW/w=
 github.com/protolambda/ztyp v0.2.1 h1:+rfw75/Zh8EopNlG652TGDXlLgJflj6XWxJ9yCVpJws=
@@ -556,7 +550,6 @@ golang.org/x/sys v0.0.0-20210324051608-47abb6519492/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210420205809-ac73e9fd8988/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20211020174200-9d6173849985/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220818161305-2296e01440c6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.2.0 h1:ljd4t30dBnAvMZaQCevtY0xLLD0A+bRZXbgLMLU1F/A=
 golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=