diff --git a/ethereum-consensus/src/deneb/blob_sidecar.rs b/ethereum-consensus/src/deneb/blob_sidecar.rs
index c0a6144e7..b13301009 100644
--- a/ethereum-consensus/src/deneb/blob_sidecar.rs
+++ b/ethereum-consensus/src/deneb/blob_sidecar.rs
@@ -1,6 +1,9 @@
 use crate::{
-    deneb::polynomial_commitments::{KzgCommitment, KzgProof},
-    primitives::{BlobIndex, BlsSignature, Root, Slot, ValidatorIndex},
+    deneb::{
+        polynomial_commitments::{KzgCommitment, KzgProof},
+        SignedBeaconBlockHeader,
+    },
+    primitives::{BlobIndex, Bytes32, Root},
     ssz::prelude::*,
 };
 
@@ -12,26 +15,17 @@ pub type Blob<const BYTES_PER_BLOB: usize> = ByteVector<BYTES_PER_BLOB>;
 #[derive(
     Default, Debug, Clone, SimpleSerialize, PartialEq, Eq, serde::Serialize, serde::Deserialize,
 )]
-pub struct BlobSidecar<const BYTES_PER_BLOB: usize> {
-    pub block_root: Root,
+pub struct BlobSidecar<
+    const BYTES_PER_BLOB: usize,
+    const KZG_COMMITMENT_INCLUSION_PROOF_DEPTH: usize,
+> {
     #[serde(with = "crate::serde::as_str")]
     pub index: BlobIndex,
-    #[serde(with = "crate::serde::as_str")]
-    pub slot: Slot,
-    pub block_parent_root: Root,
-    #[serde(with = "crate::serde::as_str")]
-    pub proposer_index: ValidatorIndex,
     pub blob: Blob<BYTES_PER_BLOB>,
     pub kzg_commitment: KzgCommitment,
     pub kzg_proof: KzgProof,
-}
-
-#[derive(
-    Default, Debug, Clone, SimpleSerialize, PartialEq, Eq, serde::Serialize, serde::Deserialize,
-)]
-pub struct SignedBlobSidecar<const BYTES_PER_BLOB: usize> {
-    pub message: BlobSidecar<BYTES_PER_BLOB>,
-    pub signature: BlsSignature,
+    pub signed_block_header: SignedBeaconBlockHeader,
+    pub kzg_commitment_inclusion_proof: Vector<Bytes32, KZG_COMMITMENT_INCLUSION_PROOF_DEPTH>,
 }
 
 #[derive(
diff --git a/ethereum-consensus/src/deneb/presets/mainnet.rs b/ethereum-consensus/src/deneb/presets/mainnet.rs
index 8b7e3190e..2bbf68198 100644
--- a/ethereum-consensus/src/deneb/presets/mainnet.rs
+++ b/ethereum-consensus/src/deneb/presets/mainnet.rs
@@ -19,6 +19,7 @@ pub use spec::*;
 pub const FIELD_ELEMENTS_PER_BLOB: usize = 4096;
 pub const MAX_BLOB_COMMITMENTS_PER_BLOCK: usize = 4096;
 pub const MAX_BLOBS_PER_BLOCK: usize = 6;
+pub const KZG_COMMITMENT_INCLUSION_PROOF_DEPTH: usize = 17;
 
 pub const BYTES_PER_BLOB: usize =
     crate::deneb::polynomial_commitments::BYTES_PER_FIELD_ELEMENT * FIELD_ELEMENTS_PER_BLOB;
@@ -149,5 +150,4 @@ pub type SignedBeaconBlock = spec::SignedBeaconBlock<
 >;
 
 pub type Blob = spec::Blob<BYTES_PER_BLOB>;
-pub type BlobSidecar = spec::BlobSidecar<BYTES_PER_BLOB>;
-pub type SignedBlobSidecar = spec::SignedBlobSidecar<BYTES_PER_BLOB>;
+pub type BlobSidecar = spec::BlobSidecar<BYTES_PER_BLOB, KZG_COMMITMENT_INCLUSION_PROOF_DEPTH>;
diff --git a/ethereum-consensus/src/deneb/presets/minimal.rs b/ethereum-consensus/src/deneb/presets/minimal.rs
index fc72718da..b24a5d71f 100644
--- a/ethereum-consensus/src/deneb/presets/minimal.rs
+++ b/ethereum-consensus/src/deneb/presets/minimal.rs
@@ -19,6 +19,7 @@ pub use spec::*;
 pub const FIELD_ELEMENTS_PER_BLOB: usize = 4096;
 pub const MAX_BLOB_COMMITMENTS_PER_BLOCK: usize = 16;
 pub const MAX_BLOBS_PER_BLOCK: usize = 6;
+pub const KZG_COMMITMENT_INCLUSION_PROOF_DEPTH: usize = 9;
 
 pub const BYTES_PER_BLOB: usize =
     crate::deneb::polynomial_commitments::BYTES_PER_FIELD_ELEMENT * FIELD_ELEMENTS_PER_BLOB;
@@ -149,5 +150,4 @@ pub type SignedBeaconBlock = spec::SignedBeaconBlock<
 >;
 
 pub type Blob = spec::Blob<BYTES_PER_BLOB>;
-pub type BlobSidecar = spec::BlobSidecar<BYTES_PER_BLOB>;
-pub type SignedBlobSidecar = spec::SignedBlobSidecar<BYTES_PER_BLOB>;
+pub type BlobSidecar = spec::BlobSidecar<BYTES_PER_BLOB, KZG_COMMITMENT_INCLUSION_PROOF_DEPTH>;
diff --git a/ethereum-consensus/src/deneb/spec/mod.rs b/ethereum-consensus/src/deneb/spec/mod.rs
index ffe10a1d3..f66b63416 100644
--- a/ethereum-consensus/src/deneb/spec/mod.rs
+++ b/ethereum-consensus/src/deneb/spec/mod.rs
@@ -33,8 +33,7 @@ pub use crate::{
         },
         blinded_blob_sidecar::{BlindedBlobSidecar, SignedBlindedBlobSidecar},
         blob_sidecar::{
-            Blob, BlobIdentifier, BlobSidecar, SignedBlobSidecar, BLOB_TX_TYPE,
-            VERSIONED_HASH_VERSION_KZG,
+            Blob, BlobIdentifier, BlobSidecar, BLOB_TX_TYPE, VERSIONED_HASH_VERSION_KZG,
         },
         block_processing::{
             process_attestation, process_block, process_execution_payload, process_voluntary_exit,