diff --git a/api/electra/builderbid.go b/api/electra/builderbid.go
index e593c92..c6b1630 100644
--- a/api/electra/builderbid.go
+++ b/api/electra/builderbid.go
@@ -37,5 +37,6 @@ func (b *BuilderBid) String() string {
 	if err != nil {
 		return fmt.Sprintf("ERR: %v", err)
 	}
+
 	return string(data)
 }
diff --git a/api/electra/builderbid_json.go b/api/electra/builderbid_json.go
index 20d91a8..293d26b 100644
--- a/api/electra/builderbid_json.go
+++ b/api/electra/builderbid_json.go
@@ -51,6 +51,7 @@ func (b *BuilderBid) UnmarshalJSON(input []byte) error {
 	if err := json.Unmarshal(input, &data); err != nil {
 		return errors.Wrap(err, "invalid JSON")
 	}
+
 	return b.unpack(&data)
 }
 
diff --git a/api/electra/builderbid_yaml.go b/api/electra/builderbid_yaml.go
index 47576b2..0ca8012 100644
--- a/api/electra/builderbid_yaml.go
+++ b/api/electra/builderbid_yaml.go
@@ -41,6 +41,7 @@ func (b *BuilderBid) MarshalYAML() ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
+
 	return bytes.ReplaceAll(yamlBytes, []byte(`"`), []byte(`'`)), nil
 }
 
@@ -51,5 +52,6 @@ func (b *BuilderBid) UnmarshalYAML(input []byte) error {
 	if err := yaml.Unmarshal(input, &data); err != nil {
 		return err
 	}
+
 	return b.unpack(&data)
 }
diff --git a/api/electra/executionpayloadandblobsbundle.go b/api/electra/executionpayloadandblobsbundle.go
index 428ec08..91e6c85 100644
--- a/api/electra/executionpayloadandblobsbundle.go
+++ b/api/electra/executionpayloadandblobsbundle.go
@@ -33,5 +33,6 @@ func (e *ExecutionPayloadAndBlobsBundle) String() string {
 	if err != nil {
 		return fmt.Sprintf("ERR: %v", err)
 	}
+
 	return string(data)
 }
diff --git a/api/electra/executionpayloadandblobsbundle_json.go b/api/electra/executionpayloadandblobsbundle_json.go
index 47721fb..13eb70a 100644
--- a/api/electra/executionpayloadandblobsbundle_json.go
+++ b/api/electra/executionpayloadandblobsbundle_json.go
@@ -41,6 +41,7 @@ func (e *ExecutionPayloadAndBlobsBundle) UnmarshalJSON(input []byte) error {
 	if err := json.Unmarshal(input, &data); err != nil {
 		return errors.Wrap(err, "invalid JSON")
 	}
+
 	return e.unpack(&data)
 }
 
diff --git a/api/electra/executionpayloadandblobsbundle_yaml.go b/api/electra/executionpayloadandblobsbundle_yaml.go
index 317e29d..4d3b7ec 100644
--- a/api/electra/executionpayloadandblobsbundle_yaml.go
+++ b/api/electra/executionpayloadandblobsbundle_yaml.go
@@ -36,6 +36,7 @@ func (e *ExecutionPayloadAndBlobsBundle) MarshalYAML() ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
+
 	return bytes.ReplaceAll(yamlBytes, []byte(`"`), []byte(`'`)), nil
 }
 
@@ -46,5 +47,6 @@ func (e *ExecutionPayloadAndBlobsBundle) UnmarshalYAML(input []byte) error {
 	if err := yaml.Unmarshal(input, &data); err != nil {
 		return err
 	}
+
 	return e.unpack(&data)
 }
diff --git a/api/electra/signedbuilderbid.go b/api/electra/signedbuilderbid.go
index 0012ae0..92d7ced 100644
--- a/api/electra/signedbuilderbid.go
+++ b/api/electra/signedbuilderbid.go
@@ -32,5 +32,6 @@ func (s *SignedBuilderBid) String() string {
 	if err != nil {
 		return fmt.Sprintf("ERR: %v", err)
 	}
+
 	return string(data)
 }
diff --git a/api/electra/signedbuilderbid_json.go b/api/electra/signedbuilderbid_json.go
index be61493..a12f90b 100644
--- a/api/electra/signedbuilderbid_json.go
+++ b/api/electra/signedbuilderbid_json.go
@@ -43,6 +43,7 @@ func (s *SignedBuilderBid) UnmarshalJSON(input []byte) error {
 	if err := json.Unmarshal(input, &data); err != nil {
 		return errors.Wrap(err, "invalid JSON")
 	}
+
 	return s.unpack(&data)
 }
 
diff --git a/api/electra/signedbuilderbid_yaml.go b/api/electra/signedbuilderbid_yaml.go
index 72a6042..842a58e 100644
--- a/api/electra/signedbuilderbid_yaml.go
+++ b/api/electra/signedbuilderbid_yaml.go
@@ -35,6 +35,7 @@ func (s *SignedBuilderBid) MarshalYAML() ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
+
 	return bytes.ReplaceAll(yamlBytes, []byte(`"`), []byte(`'`)), nil
 }
 
@@ -45,5 +46,6 @@ func (s *SignedBuilderBid) UnmarshalYAML(input []byte) error {
 	if err := yaml.Unmarshal(input, &data); err != nil {
 		return err
 	}
+
 	return s.unpack(&data)
 }
diff --git a/api/electra/submitblockrequest.go b/api/electra/submitblockrequest.go
index 8c6edcb..a67fcd1 100644
--- a/api/electra/submitblockrequest.go
+++ b/api/electra/submitblockrequest.go
@@ -37,5 +37,6 @@ func (s *SubmitBlockRequest) String() string {
 	if err != nil {
 		return fmt.Sprintf("ERR: %v", err)
 	}
+
 	return string(data)
 }
diff --git a/api/electra/submitblockrequest_json.go b/api/electra/submitblockrequest_json.go
index a0303ba..f994e34 100644
--- a/api/electra/submitblockrequest_json.go
+++ b/api/electra/submitblockrequest_json.go
@@ -50,6 +50,7 @@ func (s *SubmitBlockRequest) UnmarshalJSON(input []byte) error {
 	if err := json.Unmarshal(input, &data); err != nil {
 		return errors.Wrap(err, "invalid JSON")
 	}
+
 	return s.unpack(&data)
 }
 
@@ -80,5 +81,6 @@ func (s *SubmitBlockRequest) unpack(data *submitBlockRequestJSON) error {
 		return errors.New("blobs bundle missing")
 	}
 	s.BlobsBundle = data.BlobsBundle
+
 	return nil
 }
diff --git a/api/electra/submitblockrequest_yaml.go b/api/electra/submitblockrequest_yaml.go
index f0a3b1b..2c31dc6 100644
--- a/api/electra/submitblockrequest_yaml.go
+++ b/api/electra/submitblockrequest_yaml.go
@@ -42,6 +42,7 @@ func (s *SubmitBlockRequest) MarshalYAML() ([]byte, error) {
 	if err != nil {
 		return nil, err
 	}
+
 	return bytes.ReplaceAll(yamlBytes, []byte(`"`), []byte(`'`)), nil
 }
 
@@ -52,5 +53,6 @@ func (s *SubmitBlockRequest) UnmarshalYAML(input []byte) error {
 	if err := yaml.Unmarshal(input, &data); err != nil {
 		return err
 	}
+
 	return s.unpack(&data)
 }
diff --git a/api/versionedexecutionpayload.go b/api/versionedexecutionpayload.go
index 144e4cf..5d8ab13 100644
--- a/api/versionedexecutionpayload.go
+++ b/api/versionedexecutionpayload.go
@@ -75,6 +75,7 @@ func (v *VersionedExecutionPayload) BlockHash() (phase0.Hash32, error) {
 		if v.Electra == nil {
 			return phase0.Hash32{}, errors.New("no data")
 		}
+
 		return v.Electra.BlockHash, nil
 	default:
 		return phase0.Hash32{}, errors.New("unsupported version")
@@ -109,6 +110,7 @@ func (v *VersionedExecutionPayload) Transactions() ([]bellatrix.Transaction, err
 		if v.Electra == nil {
 			return nil, errors.New("no data")
 		}
+
 		return v.Electra.Transactions, nil
 	default:
 		return nil, errors.New("unsupported version")
diff --git a/api/versionedexecutionpayload_json.go b/api/versionedexecutionpayload_json.go
index 9f8528b..8ff7613 100644
--- a/api/versionedexecutionpayload_json.go
+++ b/api/versionedexecutionpayload_json.go
@@ -88,6 +88,7 @@ func (v *VersionedExecutionPayload) MarshalJSON() ([]byte, error) {
 			*versionJSON
 			*denebVersionedExecutionPayloadJSON
 		}{version, data}
+
 		return json.Marshal(payload)
 	case spec.DataVersionElectra:
 		if v.Electra == nil {
@@ -100,6 +101,7 @@ func (v *VersionedExecutionPayload) MarshalJSON() ([]byte, error) {
 			*versionJSON
 			*electraVersionedExecutionPayloadJSON
 		}{version, data}
+
 		return json.Marshal(payload)
 	default:
 		return nil, fmt.Errorf("unsupported data version %v", v.Version)
diff --git a/api/versionedsubmitblindedblockresponse.go b/api/versionedsubmitblindedblockresponse.go
index 0028ad3..1cfc776 100644
--- a/api/versionedsubmitblindedblockresponse.go
+++ b/api/versionedsubmitblindedblockresponse.go
@@ -84,6 +84,7 @@ func (v *VersionedSubmitBlindedBlockResponse) BlockHash() (phase0.Hash32, error)
 		if v.Electra.ExecutionPayload == nil {
 			return phase0.Hash32{}, errors.New("no execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.BlockHash, nil
 	default:
 		return phase0.Hash32{}, errors.New("unsupported version")
@@ -124,6 +125,7 @@ func (v *VersionedSubmitBlindedBlockResponse) Transactions() ([]bellatrix.Transa
 		if v.Electra.ExecutionPayload == nil {
 			return nil, errors.New("no execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.Transactions, nil
 	default:
 		return nil, errors.New("unsupported version")
@@ -143,6 +145,7 @@ func (v *VersionedSubmitBlindedBlockResponse) Blobs() ([]consensusdeneb.Blob, er
 		if v.Deneb.BlobsBundle == nil {
 			return nil, errors.New("no data blobs bundle")
 		}
+
 		return v.Deneb.BlobsBundle.Blobs, nil
 	case consensusspec.DataVersionElectra:
 		if v.Electra == nil {
@@ -151,6 +154,7 @@ func (v *VersionedSubmitBlindedBlockResponse) Blobs() ([]consensusdeneb.Blob, er
 		if v.Electra.BlobsBundle == nil {
 			return nil, errors.New("no data blobs bundle")
 		}
+
 		return v.Electra.BlobsBundle.Blobs, nil
 	default:
 		return nil, errors.New("unsupported version")
@@ -170,6 +174,7 @@ func (v *VersionedSubmitBlindedBlockResponse) BlobGasUsed() (uint64, error) {
 		if v.Deneb.ExecutionPayload == nil {
 			return 0, errors.New("no data execution payload")
 		}
+
 		return v.Deneb.ExecutionPayload.BlobGasUsed, nil
 	case consensusspec.DataVersionElectra:
 		if v.Electra == nil {
@@ -178,6 +183,7 @@ func (v *VersionedSubmitBlindedBlockResponse) BlobGasUsed() (uint64, error) {
 		if v.Electra.ExecutionPayload == nil {
 			return 0, errors.New("no data execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.BlobGasUsed, nil
 	default:
 		return 0, errors.New("unsupported version")
@@ -197,6 +203,7 @@ func (v *VersionedSubmitBlindedBlockResponse) ExcessBlobGas() (uint64, error) {
 		if v.Deneb.ExecutionPayload == nil {
 			return 0, errors.New("no data execution payload")
 		}
+
 		return v.Deneb.ExecutionPayload.ExcessBlobGas, nil
 	case consensusspec.DataVersionElectra:
 		if v.Electra == nil {
@@ -205,6 +212,7 @@ func (v *VersionedSubmitBlindedBlockResponse) ExcessBlobGas() (uint64, error) {
 		if v.Electra.ExecutionPayload == nil {
 			return 0, errors.New("no data execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.ExcessBlobGas, nil
 	default:
 		return 0, errors.New("unsupported version")
@@ -224,6 +232,7 @@ func (v *VersionedSubmitBlindedBlockResponse) DepositReceipts() ([]*consensusele
 		if v.Electra.ExecutionPayload == nil {
 			return nil, errors.New("no data execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.DepositReceipts, nil
 	default:
 		return nil, errors.New("unsupported version")
@@ -243,6 +252,7 @@ func (v *VersionedSubmitBlindedBlockResponse) WithdrawalRequests() ([]*consensus
 		if v.Electra.ExecutionPayload == nil {
 			return nil, errors.New("no data execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.WithdrawalRequests, nil
 	default:
 		return nil, errors.New("unsupported version")
diff --git a/api/versionedsubmitblindedblockresponse_json.go b/api/versionedsubmitblindedblockresponse_json.go
index c62a713..3c33616 100644
--- a/api/versionedsubmitblindedblockresponse_json.go
+++ b/api/versionedsubmitblindedblockresponse_json.go
@@ -87,6 +87,7 @@ func (v *VersionedSubmitBlindedBlockResponse) MarshalJSON() ([]byte, error) {
 			*versionJSON
 			*electraVersionedExecutionPayloadAndBlobsBundleJSON
 		}{version, data}
+
 		return json.Marshal(payload)
 	default:
 		return nil, fmt.Errorf("unsupported data version %v", v.Version)
diff --git a/go.mod b/go.mod
index 31ec4e4..00433f0 100644
--- a/go.mod
+++ b/go.mod
@@ -3,11 +3,12 @@ module github.com/attestantio/go-builder-client
 go 1.20
 
 require (
-	github.com/attestantio/go-eth2-client v0.21.4-0.20240506185515-2ff35ee939f2
+	github.com/attestantio/go-eth2-client v0.21.4-0.20240506195511-4654a8b8bc37
 	github.com/ferranbt/fastssz v0.1.3
 	// go-yaml after 1.9.2 has memory issues due to https://github.com/goccy/go-yaml/issues/325; avoid.
 	github.com/goccy/go-yaml v1.9.2
 	github.com/holiman/uint256 v1.2.4
+	github.com/huandu/go-clone v1.6.0
 	github.com/pkg/errors v0.9.1
 	github.com/prometheus/client_golang v1.16.0
 	github.com/rs/zerolog v1.32.0
@@ -17,8 +18,6 @@ require (
 	gotest.tools v2.2.0+incompatible
 )
 
-require github.com/huandu/go-clone v1.6.0
-
 require (
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
diff --git a/go.sum b/go.sum
index 1655d8d..24d9a54 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-github.com/attestantio/go-eth2-client v0.21.4-0.20240506185515-2ff35ee939f2 h1:zqs9KZ+QbCLw2R/CCdlNXd+bBYsgoNuw3ZNrz7MbyKw=
-github.com/attestantio/go-eth2-client v0.21.4-0.20240506185515-2ff35ee939f2/go.mod h1:vhb0ZoQ6bz0kkoyxVbHDRrZTOJbwlY6udFkwfwrJZTE=
+github.com/attestantio/go-eth2-client v0.21.4-0.20240506195511-4654a8b8bc37 h1:o6Ds0sAleeYlBs4NjmPI17QhbmbaaDH1sY7a7hDpVrs=
+github.com/attestantio/go-eth2-client v0.21.4-0.20240506195511-4654a8b8bc37/go.mod h1:yzMl6JKut8ngKCRyv+6H9j2nNjS/+SMm3N+duf8iix8=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
@@ -8,6 +8,7 @@ github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSV
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/fatih/color v1.10.0/go.mod h1:ELkj/draVOlAH/xkhN6mQ50Qd0MPOk5AAr3maGEBuJM=
 github.com/fatih/color v1.16.0 h1:zmkK9Ngbjj+K0yRhTVONQh1p/HknKYSlNT+vZCzyokM=
 github.com/fatih/color v1.16.0/go.mod h1:fL2Sau1YI5c0pdGEVCbKQbLXB6edEj1ZgiY4NijnWvE=
 github.com/ferranbt/fastssz v0.1.3 h1:ZI+z3JH05h4kgmFXdHuR1aWYsgrg7o+Fw7/NCzM16Mo=
@@ -17,11 +18,15 @@ github.com/go-logr/logr v1.2.4 h1:g01GSCwiDw2xSZfjJ2/T9M+S6pFdcNtFYsp+Y43HYDQ=
 github.com/go-logr/logr v1.2.4/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
+github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
 github.com/go-playground/locales v0.13.0 h1:HyWk6mgj5qFqCT5fjGBuRArbVDfE4hi8+e8ceBS/t7Q=
+github.com/go-playground/locales v0.13.0/go.mod h1:taPMhCMXrRLJO55olJkUXHZBHCxTMfnGwq/HNwmWNS8=
 github.com/go-playground/universal-translator v0.17.0 h1:icxd5fm+REJzpZx7ZfpaD876Lmtgy7VtROAbHHXk8no=
+github.com/go-playground/universal-translator v0.17.0/go.mod h1:UkSxE5sNxxRwHyU+Scu5vgOQjsIJAF8j9muTVoKLVtA=
 github.com/go-playground/validator/v10 v10.4.1 h1:pH2c5ADXtd66mxoE0Zm9SUhxE20r7aM3F26W0hOn+GE=
-github.com/goccy/go-yaml v1.11.3 h1:B3W9IdWbvrUu2OYQGwvU1nZtvMQJPBKgBUuweJjLj6I=
-github.com/goccy/go-yaml v1.11.3/go.mod h1:wKnAMd44+9JAAnGQpWVEgBzGt3YuTaQ4uXoHvE4m7WU=
+github.com/go-playground/validator/v10 v10.4.1/go.mod h1:nlOn6nFhuKACm19sB/8EGNn9GlaMV7XkbRSipzJ0Ii4=
+github.com/goccy/go-yaml v1.9.2 h1:2Njwzw+0+pjU2gb805ZC1B/uBuAs2VcZ3K+ZgHwDs7w=
+github.com/goccy/go-yaml v1.9.2/go.mod h1:U/jl18uSupI5rdI2jmuCswEA2htH9eXfferR3KfscvA=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.5/go.mod h1:6O5/vntMXwX2lRkT1hjjk0nAC1IDOTvTlVgjlRvqsdk=
@@ -44,8 +49,11 @@ github.com/klauspost/cpuid/v2 v2.2.7/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZY
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
 github.com/leodido/go-urn v1.2.0 h1:hpXL4XnriNwQ/ABnpepYM/1vCLWNDfUNts8dX3xTG6Y=
+github.com/leodido/go-urn v1.2.0/go.mod h1:+8+nEpDfqqsY+g338gtMEUOtuK+4dEMhiQEgxpxOKII=
+github.com/mattn/go-colorable v0.1.8/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
 github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
 github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
+github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
 github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
 github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
@@ -85,16 +93,27 @@ go.opentelemetry.io/otel/metric v1.16.0 h1:RbrpwVG1Hfv85LgnZ7+txXioPDoh6EdbZHo26
 go.opentelemetry.io/otel/metric v1.16.0/go.mod h1:QE47cpOmkwipPiefDwo2wDzwJrlfxxNYodqc4xnGCo4=
 go.opentelemetry.io/otel/trace v1.16.0 h1:8JRpaObFoW0pxuVPapkgH8UhHQj+bJW8jJsCZEu5MQs=
 go.opentelemetry.io/otel/trace v1.16.0/go.mod h1:Yt9vYq1SdNz3xdjZZK7wcXv1qv2pwLkqr2QVwea0ef0=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
 golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
 golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028 h1:+cNy6SZtPcJQH3LJVLOSmiC7MMxXNOb3PU/VUEz+EhU=
 golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028/go.mod h1:NDW/Ps6MPRej6fsCIbMTohpP40sJ/P/vI1MoTEGwX90=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
diff --git a/spec/versionedsignedbuilderbid.go b/spec/versionedsignedbuilderbid.go
index 022f821..1fbc781 100644
--- a/spec/versionedsignedbuilderbid.go
+++ b/spec/versionedsignedbuilderbid.go
@@ -93,6 +93,7 @@ func (v *VersionedSignedBuilderBid) Builder() (phase0.BLSPubKey, error) {
 		if v.Electra.Message == nil {
 			return phase0.BLSPubKey{}, errors.New("no data message")
 		}
+
 		return v.Electra.Message.Pubkey, nil
 	default:
 		return phase0.BLSPubKey{}, errors.New("unsupported version")
@@ -139,6 +140,7 @@ func (v *VersionedSignedBuilderBid) Value() (*uint256.Int, error) {
 		if v.Electra.Message == nil {
 			return nil, errors.New("no data message")
 		}
+
 		return v.Electra.Message.Value, nil
 	default:
 		return nil, errors.New("unsupported version")
@@ -197,6 +199,7 @@ func (v *VersionedSignedBuilderBid) BlockNumber() (uint64, error) {
 		if v.Electra.Message.Header == nil {
 			return 0, errors.New("no data message header")
 		}
+
 		return v.Electra.Message.Header.BlockNumber, nil
 	default:
 		return 0, errors.New("unsupported version")
@@ -255,6 +258,7 @@ func (v *VersionedSignedBuilderBid) BlockHash() (phase0.Hash32, error) {
 		if v.Electra.Message.Header == nil {
 			return phase0.Hash32{}, errors.New("no data message header")
 		}
+
 		return v.Electra.Message.Header.BlockHash, nil
 	default:
 		return phase0.Hash32{}, errors.New("unsupported version")
@@ -313,6 +317,7 @@ func (v *VersionedSignedBuilderBid) ParentHash() (phase0.Hash32, error) {
 		if v.Electra.Message.Header == nil {
 			return phase0.Hash32{}, errors.New("no data message header")
 		}
+
 		return v.Electra.Message.Header.ParentHash, nil
 	default:
 		return phase0.Hash32{}, errors.New("unsupported version")
@@ -371,6 +376,7 @@ func (v *VersionedSignedBuilderBid) StateRoot() (phase0.Root, error) {
 		if v.Electra.Message.Header == nil {
 			return phase0.Root{}, errors.New("no data message header")
 		}
+
 		return v.Electra.Message.Header.StateRoot, nil
 	default:
 		return phase0.Root{}, errors.New("unsupported version")
@@ -429,6 +435,7 @@ func (v *VersionedSignedBuilderBid) FeeRecipient() (consensusbellatrix.Execution
 		if v.Electra.Message.Header == nil {
 			return consensusbellatrix.ExecutionAddress{}, errors.New("no data message header")
 		}
+
 		return v.Electra.Message.Header.FeeRecipient, nil
 	default:
 		return consensusbellatrix.ExecutionAddress{}, errors.New("unsupported version")
@@ -487,6 +494,7 @@ func (v *VersionedSignedBuilderBid) Timestamp() (uint64, error) {
 		if v.Electra.Message.Header == nil {
 			return 0, errors.New("no data message header")
 		}
+
 		return v.Electra.Message.Header.Timestamp, nil
 	default:
 		return 0, errors.New("unsupported version")
@@ -545,6 +553,7 @@ func (v *VersionedSignedBuilderBid) TransactionsRoot() (phase0.Root, error) {
 		if v.Electra.Message.Header == nil {
 			return phase0.Root{}, errors.New("no data message header")
 		}
+
 		return v.Electra.Message.Header.TransactionsRoot, nil
 	default:
 		return phase0.Root{}, errors.New("unsupported version")
@@ -591,6 +600,7 @@ func (v *VersionedSignedBuilderBid) MessageHashTreeRoot() (phase0.Root, error) {
 		if v.Electra.Message == nil {
 			return phase0.Root{}, errors.New("no data message")
 		}
+
 		return v.Electra.Message.HashTreeRoot()
 	default:
 		return phase0.Root{}, errors.New("unsupported version")
@@ -649,6 +659,7 @@ func (v *VersionedSignedBuilderBid) HeaderHashTreeRoot() (phase0.Root, error) {
 		if v.Electra.Message.Header == nil {
 			return phase0.Root{}, errors.New("no data message header")
 		}
+
 		return v.Electra.Message.Header.HashTreeRoot()
 	default:
 		return phase0.Root{}, errors.New("unsupported version")
@@ -683,6 +694,7 @@ func (v *VersionedSignedBuilderBid) Signature() (phase0.BLSSignature, error) {
 		if v.Electra == nil {
 			return phase0.BLSSignature{}, errors.New("no data")
 		}
+
 		return v.Electra.Signature, nil
 	default:
 		return phase0.BLSSignature{}, errors.New("unsupported version")
diff --git a/spec/versionedsignedbuilderbid_json.go b/spec/versionedsignedbuilderbid_json.go
index b9a5347..75efe76 100644
--- a/spec/versionedsignedbuilderbid_json.go
+++ b/spec/versionedsignedbuilderbid_json.go
@@ -101,6 +101,7 @@ func (v *VersionedSignedBuilderBid) MarshalJSON() ([]byte, error) {
 			*versionJSON
 			*electraVersionedSignedBuilderBidJSON
 		}{version, data}
+
 		return json.Marshal(payload)
 	default:
 		return nil, fmt.Errorf("unsupported data version %v", v.Version)
diff --git a/spec/versionedsubmitblockrequest.go b/spec/versionedsubmitblockrequest.go
index 24d20e5..897c684 100644
--- a/spec/versionedsubmitblockrequest.go
+++ b/spec/versionedsubmitblockrequest.go
@@ -97,6 +97,7 @@ func (v *VersionedSubmitBlockRequest) Slot() (uint64, error) {
 		if v.Electra.Message == nil {
 			return 0, errors.New("no data message")
 		}
+
 		return v.Electra.Message.Slot, nil
 	default:
 		return 0, errors.New("unsupported version")
@@ -143,6 +144,7 @@ func (v *VersionedSubmitBlockRequest) BlockHash() (phase0.Hash32, error) {
 		if v.Electra.Message == nil {
 			return phase0.Hash32{}, errors.New("no data message")
 		}
+
 		return v.Electra.Message.BlockHash, nil
 	default:
 		return phase0.Hash32{}, errors.New("unsupported version")
@@ -189,6 +191,7 @@ func (v *VersionedSubmitBlockRequest) Builder() (phase0.BLSPubKey, error) {
 		if v.Electra.Message == nil {
 			return phase0.BLSPubKey{}, errors.New("no data message")
 		}
+
 		return v.Electra.Message.BuilderPubkey, nil
 	default:
 		return phase0.BLSPubKey{}, errors.New("unsupported version")
@@ -235,6 +238,7 @@ func (v *VersionedSubmitBlockRequest) ProposerFeeRecipient() (consensusbellatrix
 		if v.Electra.Message == nil {
 			return consensusbellatrix.ExecutionAddress{}, errors.New("no data message")
 		}
+
 		return v.Electra.Message.ProposerFeeRecipient, nil
 	default:
 		return consensusbellatrix.ExecutionAddress{}, errors.New("unsupported version")
@@ -281,6 +285,7 @@ func (v *VersionedSubmitBlockRequest) ProposerPubKey() (phase0.BLSPubKey, error)
 		if v.Electra.Message == nil {
 			return phase0.BLSPubKey{}, errors.New("no data message")
 		}
+
 		return v.Electra.Message.ProposerPubkey, nil
 	default:
 		return phase0.BLSPubKey{}, errors.New("unsupported version")
@@ -327,6 +332,7 @@ func (v *VersionedSubmitBlockRequest) ParentHash() (phase0.Hash32, error) {
 		if v.Electra.Message == nil {
 			return phase0.Hash32{}, errors.New("no data message")
 		}
+
 		return v.Electra.Message.ParentHash, nil
 	default:
 		return phase0.Hash32{}, errors.New("unsupported version")
@@ -373,6 +379,7 @@ func (v *VersionedSubmitBlockRequest) Value() (*uint256.Int, error) {
 		if v.Electra.Message == nil {
 			return nil, errors.New("no data message")
 		}
+
 		return v.Electra.Message.Value, nil
 	default:
 		return nil, errors.New("unsupported version")
@@ -419,6 +426,7 @@ func (v *VersionedSubmitBlockRequest) BidTrace() (*apiv1.BidTrace, error) {
 		if v.Electra.Message == nil {
 			return nil, errors.New("no data message")
 		}
+
 		return v.Electra.Message, nil
 	default:
 		return nil, errors.New("unsupported version")
@@ -453,6 +461,7 @@ func (v *VersionedSubmitBlockRequest) Signature() (phase0.BLSSignature, error) {
 		if v.Electra == nil {
 			return phase0.BLSSignature{}, errors.New("no data")
 		}
+
 		return v.Electra.Signature, nil
 	default:
 		return phase0.BLSSignature{}, errors.New("unsupported version")
@@ -499,6 +508,7 @@ func (v *VersionedSubmitBlockRequest) ExecutionPayloadBlockHash() (phase0.Hash32
 		if v.Electra.ExecutionPayload == nil {
 			return phase0.Hash32{}, errors.New("no data execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.BlockHash, nil
 	default:
 		return phase0.Hash32{}, errors.New("unsupported version")
@@ -545,6 +555,7 @@ func (v *VersionedSubmitBlockRequest) ExecutionPayloadParentHash() (phase0.Hash3
 		if v.Electra.ExecutionPayload == nil {
 			return phase0.Hash32{}, errors.New("no data execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.ParentHash, nil
 	default:
 		return phase0.Hash32{}, errors.New("unsupported version")
@@ -591,6 +602,7 @@ func (v *VersionedSubmitBlockRequest) PrevRandao() (phase0.Hash32, error) {
 		if v.Electra.ExecutionPayload == nil {
 			return phase0.Hash32{}, errors.New("no data execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.PrevRandao, nil
 	default:
 		return phase0.Hash32{}, errors.New("unsupported version")
@@ -637,6 +649,7 @@ func (v *VersionedSubmitBlockRequest) GasLimit() (uint64, error) {
 		if v.Electra.ExecutionPayload == nil {
 			return 0, errors.New("no data execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.GasLimit, nil
 	default:
 		return 0, errors.New("unsupported version")
@@ -683,6 +696,7 @@ func (v *VersionedSubmitBlockRequest) GasUsed() (uint64, error) {
 		if v.Electra.ExecutionPayload == nil {
 			return 0, errors.New("no data execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.GasUsed, nil
 	default:
 		return 0, errors.New("unsupported version")
@@ -729,6 +743,7 @@ func (v *VersionedSubmitBlockRequest) BlockNumber() (uint64, error) {
 		if v.Electra.ExecutionPayload == nil {
 			return 0, errors.New("no data execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.BlockNumber, nil
 	default:
 		return 0, errors.New("unsupported version")
@@ -775,6 +790,7 @@ func (v *VersionedSubmitBlockRequest) Timestamp() (uint64, error) {
 		if v.Electra.ExecutionPayload == nil {
 			return 0, errors.New("no data execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.Timestamp, nil
 	default:
 		return 0, errors.New("unsupported version")
@@ -821,6 +837,7 @@ func (v *VersionedSubmitBlockRequest) Transactions() ([]consensusbellatrix.Trans
 		if v.Electra.ExecutionPayload == nil {
 			return nil, errors.New("no data execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.Transactions, nil
 	default:
 		return nil, errors.New("unsupported version")
@@ -858,6 +875,7 @@ func (v *VersionedSubmitBlockRequest) Withdrawals() ([]*consensuscapella.Withdra
 		if v.Electra.ExecutionPayload == nil {
 			return nil, errors.New("no data execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.Withdrawals, nil
 	default:
 		return nil, errors.New("unsupported version")
@@ -877,6 +895,7 @@ func (v *VersionedSubmitBlockRequest) Blobs() ([]consensusdeneb.Blob, error) {
 		if v.Deneb.BlobsBundle == nil {
 			return nil, errors.New("no data blobs bundle")
 		}
+
 		return v.Deneb.BlobsBundle.Blobs, nil
 	case consensusspec.DataVersionElectra:
 		if v.Electra == nil {
@@ -885,6 +904,7 @@ func (v *VersionedSubmitBlockRequest) Blobs() ([]consensusdeneb.Blob, error) {
 		if v.Electra.BlobsBundle == nil {
 			return nil, errors.New("no data blobs bundle")
 		}
+
 		return v.Electra.BlobsBundle.Blobs, nil
 	default:
 		return nil, errors.New("unsupported version")
@@ -904,6 +924,7 @@ func (v *VersionedSubmitBlockRequest) BlobGasUsed() (uint64, error) {
 		if v.Deneb.ExecutionPayload == nil {
 			return 0, errors.New("no data execution payload")
 		}
+
 		return v.Deneb.ExecutionPayload.BlobGasUsed, nil
 	case consensusspec.DataVersionElectra:
 		if v.Electra == nil {
@@ -912,6 +933,7 @@ func (v *VersionedSubmitBlockRequest) BlobGasUsed() (uint64, error) {
 		if v.Electra.ExecutionPayload == nil {
 			return 0, errors.New("no data execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.BlobGasUsed, nil
 	default:
 		return 0, errors.New("unsupported version")
@@ -931,6 +953,7 @@ func (v *VersionedSubmitBlockRequest) ExcessBlobGas() (uint64, error) {
 		if v.Deneb.ExecutionPayload == nil {
 			return 0, errors.New("no data execution payload")
 		}
+
 		return v.Deneb.ExecutionPayload.ExcessBlobGas, nil
 	case consensusspec.DataVersionElectra:
 		if v.Electra == nil {
@@ -939,6 +962,7 @@ func (v *VersionedSubmitBlockRequest) ExcessBlobGas() (uint64, error) {
 		if v.Electra.ExecutionPayload == nil {
 			return 0, errors.New("no data execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.ExcessBlobGas, nil
 	default:
 		return 0, errors.New("unsupported version")
@@ -958,6 +982,7 @@ func (v *VersionedSubmitBlockRequest) DepositReceipts() ([]*consensuselectra.Dep
 		if v.Electra.ExecutionPayload == nil {
 			return nil, errors.New("no data execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.DepositReceipts, nil
 	default:
 		return nil, errors.New("unsupported version")
@@ -977,6 +1002,7 @@ func (v *VersionedSubmitBlockRequest) WithdrawalRequests() ([]*consensuselectra.
 		if v.Electra.ExecutionPayload == nil {
 			return nil, errors.New("no data execution payload")
 		}
+
 		return v.Electra.ExecutionPayload.WithdrawalRequests, nil
 	default:
 		return nil, errors.New("unsupported version")
diff --git a/spec/versionedsubmitblockrequest_json.go b/spec/versionedsubmitblockrequest_json.go
index 11037b9..a5bb81a 100644
--- a/spec/versionedsubmitblockrequest_json.go
+++ b/spec/versionedsubmitblockrequest_json.go
@@ -97,6 +97,7 @@ func (v *VersionedSubmitBlockRequest) MarshalJSON() ([]byte, error) {
 			*versionJSON
 			*electraVersionedSubmitBlockRequestJSON
 		}{version, data}
+
 		return json.Marshal(payload)
 	default:
 		return nil, fmt.Errorf("unsupported data version %v", v.Version)