diff --git a/beacon-chain/blockchain/execution_engine.go b/beacon-chain/blockchain/execution_engine.go
index 564648a69..af2eeeef3 100644
--- a/beacon-chain/blockchain/execution_engine.go
+++ b/beacon-chain/blockchain/execution_engine.go
@@ -387,10 +387,7 @@ func (s *Service) removeInvalidBlockAndState(ctx context.Context, blkRoots [][32
 			// This is an irreparable condition, it would me a justified or finalized block has become invalid.
 			return err
 		}
-		// No op if the sidecar does not exist.
-		if err := s.cfg.BeaconDB.DeleteBlobSidecars(ctx, root); err != nil {
-			return err
-		}
+		// TODO: Remove blob here
 	}
 	return nil
 }
diff --git a/beacon-chain/blockchain/kzg/BUILD.bazel b/beacon-chain/blockchain/kzg/BUILD.bazel
index 4f30dc2dc..21c8fe9d7 100644
--- a/beacon-chain/blockchain/kzg/BUILD.bazel
+++ b/beacon-chain/blockchain/kzg/BUILD.bazel
@@ -11,7 +11,6 @@ go_library(
     visibility = ["//visibility:public"],
     deps = [
         "//consensus-types/blocks:go_default_library",
-        "//proto/prysm/v1alpha1:go_default_library",
         "@com_github_crate_crypto_go_kzg_4844//:go_default_library",
         "@com_github_pkg_errors//:go_default_library",
     ],
@@ -25,7 +24,7 @@ go_test(
     ],
     embed = [":go_default_library"],
     deps = [
-        "//proto/prysm/v1alpha1:go_default_library",
+        "//consensus-types/blocks:go_default_library",
         "//testing/require:go_default_library",
         "@com_github_consensys_gnark_crypto//ecc/bls12-381/fr:go_default_library",
         "@com_github_crate_crypto_go_kzg_4844//:go_default_library",
diff --git a/beacon-chain/blockchain/kzg/validation.go b/beacon-chain/blockchain/kzg/validation.go
index dfd09ce3b..1549a3f45 100644
--- a/beacon-chain/blockchain/kzg/validation.go
+++ b/beacon-chain/blockchain/kzg/validation.go
@@ -1,37 +1,10 @@
 package kzg
 
 import (
-	"fmt"
-
 	GoKZG "github.com/crate-crypto/go-kzg-4844"
 	"github.com/prysmaticlabs/prysm/v4/consensus-types/blocks"
-	ethpb "github.com/prysmaticlabs/prysm/v4/proto/prysm/v1alpha1"
 )
 
-// IsDataAvailable checks that
-// - all blobs in the block are available
-// - Expected KZG commitments match the number of blobs in the block
-// - That the number of proofs match the number of blobs
-// - That the proofs are verified against the KZG commitments
-func IsDataAvailable(commitments [][]byte, sidecars []*ethpb.DeprecatedBlobSidecar) error {
-	if len(commitments) != len(sidecars) {
-		return fmt.Errorf("could not check data availability, expected %d commitments, obtained %d",
-			len(commitments), len(sidecars))
-	}
-	if len(commitments) == 0 {
-		return nil
-	}
-	blobs := make([]GoKZG.Blob, len(commitments))
-	proofs := make([]GoKZG.KZGProof, len(commitments))
-	cmts := make([]GoKZG.KZGCommitment, len(commitments))
-	for i, sidecar := range sidecars {
-		blobs[i] = bytesToBlob(sidecar.Blob)
-		proofs[i] = bytesToKZGProof(sidecar.KzgProof)
-		cmts[i] = bytesToCommitment(commitments[i])
-	}
-	return kzgContext.VerifyBlobKZGProofBatch(blobs, cmts, proofs)
-}
-
 // Verify performs single or batch verification of commitments depending on the number of given BlobSidecars.
 func Verify(sidecars ...blocks.ROBlob) error {
 	if len(sidecars) == 0 {
diff --git a/beacon-chain/blockchain/kzg/validation_test.go b/beacon-chain/blockchain/kzg/validation_test.go
index b6f905ef0..032fbadf0 100644
--- a/beacon-chain/blockchain/kzg/validation_test.go
+++ b/beacon-chain/blockchain/kzg/validation_test.go
@@ -8,7 +8,7 @@ import (
 
 	"github.com/consensys/gnark-crypto/ecc/bls12-381/fr"
 	GoKZG "github.com/crate-crypto/go-kzg-4844"
-	ethpb "github.com/prysmaticlabs/prysm/v4/proto/prysm/v1alpha1"
+	"github.com/prysmaticlabs/prysm/v4/consensus-types/blocks"
 	"github.com/prysmaticlabs/prysm/v4/testing/require"
 	"github.com/sirupsen/logrus"
 )
@@ -58,10 +58,9 @@ func GenerateCommitmentAndProof(blob GoKZG.Blob) (GoKZG.KZGCommitment, GoKZG.KZG
 	return commitment, proof, err
 }
 
-func TestIsDataAvailable(t *testing.T) {
-	sidecars := make([]*ethpb.DeprecatedBlobSidecar, 0)
-	commitments := make([][]byte, 0)
-	require.NoError(t, IsDataAvailable(commitments, sidecars))
+func TestVerify(t *testing.T) {
+	sidecars := make([]blocks.ROBlob, 0)
+	require.NoError(t, Verify(sidecars...))
 }
 
 func TestBytesToAny(t *testing.T) {
diff --git a/beacon-chain/db/iface/interface.go b/beacon-chain/db/iface/interface.go
index e80f34d2b..509341004 100644
--- a/beacon-chain/db/iface/interface.go
+++ b/beacon-chain/db/iface/interface.go
@@ -55,9 +55,6 @@ type ReadOnlyDatabase interface {
 	FeeRecipientByValidatorID(ctx context.Context, id primitives.ValidatorIndex) (common.Address, error)
 	RegistrationByValidatorID(ctx context.Context, id primitives.ValidatorIndex) (*ethpb.ValidatorRegistrationV1, error)
 
-	// Blob operations.
-	BlobSidecarsByRoot(ctx context.Context, beaconBlockRoot [32]byte, indices ...uint64) ([]*ethpb.DeprecatedBlobSidecar, error)
-	BlobSidecarsBySlot(ctx context.Context, slot primitives.Slot, indices ...uint64) ([]*ethpb.DeprecatedBlobSidecar, error)
 	// origin checkpoint sync support
 	OriginCheckpointBlockRoot(ctx context.Context) ([32]byte, error)
 	BackfillBlockRoot(ctx context.Context) ([32]byte, error)
@@ -93,9 +90,6 @@ type NoHeadAccessDatabase interface {
 	SaveFeeRecipientsByValidatorIDs(ctx context.Context, ids []primitives.ValidatorIndex, addrs []common.Address) error
 	SaveRegistrationsByValidatorIDs(ctx context.Context, ids []primitives.ValidatorIndex, regs []*ethpb.ValidatorRegistrationV1) error
 
-	// Blob operations.
-	DeleteBlobSidecars(ctx context.Context, beaconBlockRoot [32]byte) error
-
 	CleanUpDirtyStates(ctx context.Context, slotsPerArchivedPoint primitives.Slot) error
 }
 
diff --git a/beacon-chain/db/kv/BUILD.bazel b/beacon-chain/db/kv/BUILD.bazel
index 48c9d50b8..896ad73c0 100644
--- a/beacon-chain/db/kv/BUILD.bazel
+++ b/beacon-chain/db/kv/BUILD.bazel
@@ -5,7 +5,6 @@ go_library(
     srcs = [
         "archived_point.go",
         "backup.go",
-        "blob.go",
         "blocks.go",
         "checkpoint.go",
         "deposit_contract.go",
@@ -39,7 +38,6 @@ go_library(
         "//beacon-chain/state/genesis:go_default_library",
         "//beacon-chain/state/state-native:go_default_library",
         "//config/features:go_default_library",
-        "//config/fieldparams:go_default_library",
         "//config/params:go_default_library",
         "//consensus-types/blocks:go_default_library",
         "//consensus-types/interfaces:go_default_library",
@@ -76,7 +74,6 @@ go_test(
     srcs = [
         "archived_point_test.go",
         "backup_test.go",
-        "blob_test.go",
         "blocks_test.go",
         "checkpoint_test.go",
         "deposit_contract_test.go",
@@ -114,7 +111,6 @@ go_test(
         "//proto/prysm/v1alpha1:go_default_library",
         "//proto/testing:go_default_library",
         "//testing/assert:go_default_library",
-        "//testing/assertions:go_default_library",
         "//testing/require:go_default_library",
         "//testing/util:go_default_library",
         "@com_github_ethereum_go_ethereum//common:go_default_library",
diff --git a/beacon-chain/db/kv/blob.go b/beacon-chain/db/kv/blob.go
deleted file mode 100644
index 322df4f32..000000000
--- a/beacon-chain/db/kv/blob.go
+++ /dev/null
@@ -1,320 +0,0 @@
-package kv
-
-import (
-	"bytes"
-	"context"
-	"sort"
-
-	"github.com/pkg/errors"
-	fieldparams "github.com/prysmaticlabs/prysm/v4/config/fieldparams"
-	"github.com/prysmaticlabs/prysm/v4/config/params"
-	types "github.com/prysmaticlabs/prysm/v4/consensus-types/primitives"
-	"github.com/prysmaticlabs/prysm/v4/encoding/bytesutil"
-	ethpb "github.com/prysmaticlabs/prysm/v4/proto/prysm/v1alpha1"
-	bolt "go.etcd.io/bbolt"
-	"go.opencensus.io/trace"
-)
-
-var (
-	errBlobSlotMismatch     = errors.New("sidecar slot mismatch")
-	errBlobParentMismatch   = errors.New("sidecar parent root mismatch")
-	errBlobRootMismatch     = errors.New("sidecar root mismatch")
-	errBlobProposerMismatch = errors.New("sidecar proposer index mismatch")
-	errBlobSidecarLimit     = errors.New("sidecar exceeds maximum number of blobs")
-	errEmptySidecar         = errors.New("nil or empty blob sidecars")
-	errNewerBlobExists      = errors.New("Will not overwrite newer blobs in db")
-)
-
-// A blob rotating key is represented as bytes(slot_to_rotating_buffer(blob.slot)) ++ bytes(blob.slot) ++ blob.block_root
-type blobRotatingKey []byte
-
-// BufferPrefix returns the first 8 bytes of the rotating key.
-// This represents bytes(slot_to_rotating_buffer(blob.slot)) in the rotating key.
-func (rk blobRotatingKey) BufferPrefix() []byte {
-	return rk[0:8]
-}
-
-// Slot returns the information from the key.
-func (rk blobRotatingKey) Slot() types.Slot {
-	slotBytes := rk[8:16]
-	return bytesutil.BytesToSlotBigEndian(slotBytes)
-}
-
-// BlockRoot returns the block root information from the key.
-func (rk blobRotatingKey) BlockRoot() []byte {
-	return rk[16:]
-}
-
-// SaveBlobSidecar saves the blobs for a given epoch in the sidecar bucket. When we receive a blob:
-//
-//  1. Convert slot using a modulo operator to [0, maxSlots] where maxSlots = MAX_EPOCHS_TO_PERSIST_BLOBS*SLOTS_PER_EPOCH
-//
-//  2. Compute key for blob as bytes(slot_to_rotating_buffer(blob.slot)) ++ bytes(blob.slot) ++ blob.block_root
-//
-//  3. Begin the save algorithm:  If the incoming blob has a slot bigger than the saved slot at the spot
-//     in the rotating keys buffer, we overwrite all elements for that slot. Otherwise, we merge the blob with an existing one.
-//     Trying to replace a newer blob with an older one is an error.
-func (s *Store) SaveBlobSidecar(ctx context.Context, scs []*ethpb.DeprecatedBlobSidecar) error {
-	if len(scs) == 0 {
-		return errEmptySidecar
-	}
-	ctx, span := trace.StartSpan(ctx, "BeaconDB.SaveBlobSidecar")
-	defer span.End()
-
-	first := scs[0]
-	newKey := s.blobSidecarKey(first)
-	prefix := newKey.BufferPrefix()
-	var prune []blobRotatingKey
-	return s.db.Update(func(tx *bolt.Tx) error {
-		var existing []byte
-		sc := &ethpb.DeprecatedBlobSidecars{}
-		bkt := tx.Bucket(blobsBucket)
-		c := bkt.Cursor()
-		for k, v := c.Seek(prefix); bytes.HasPrefix(k, prefix); k, v = c.Next() {
-			key := blobRotatingKey(k)
-			ks := key.Slot()
-			if ks < first.Slot {
-				// Mark older blobs at the same position of the ring buffer for deletion.
-				prune = append(prune, key)
-				continue
-			}
-			if ks > first.Slot {
-				// We shouldn't be overwriting newer blobs with older blobs. Something is wrong.
-				return errNewerBlobExists
-			}
-			// The slot isn't older or newer, so it must be equal.
-			// If the roots match, then we want to merge the new sidecars with the existing data.
-			if bytes.Equal(first.BlockRoot, key.BlockRoot()) {
-				existing = v
-				if err := decode(ctx, v, sc); err != nil {
-					return err
-				}
-			}
-			// If the slot is equal but the roots don't match, leave the existing key alone and allow the sidecar
-			// to be written to the new key with the same prefix. In this case sc will be empty, so it will just
-			// contain the incoming sidecars when we write it.
-		}
-		sc.Sidecars = append(sc.Sidecars, scs...)
-		sortSidecars(sc.Sidecars)
-		var err error
-		sc.Sidecars, err = validUniqueSidecars(sc.Sidecars)
-		if err != nil {
-			return err
-		}
-		encoded, err := encode(ctx, sc)
-		if err != nil {
-			return err
-		}
-		// don't write if the merged result is the same as before
-		if len(existing) == len(encoded) && bytes.Equal(existing, encoded) {
-			return nil
-		}
-		// Only prune if we're actually going through with the update.
-		for _, k := range prune {
-			if err := bkt.Delete(k); err != nil {
-				// note: attempting to delete a key that does not exist should not return an error.
-				log.WithError(err).Warnf("Could not delete blob key %#x.", k)
-			}
-		}
-		return bkt.Put(newKey, encoded)
-	})
-}
-
-// validUniqueSidecars ensures that all sidecars have the same slot, parent root, block root, and proposer index, and
-// there are no more than MAX_BLOBS_PER_BLOCK sidecars.
-func validUniqueSidecars(scs []*ethpb.DeprecatedBlobSidecar) ([]*ethpb.DeprecatedBlobSidecar, error) {
-	if len(scs) == 0 {
-		return nil, errEmptySidecar
-	}
-
-	// If there's only 1 sidecar, we've got nothing to compare.
-	if len(scs) == 1 {
-		return scs, nil
-	}
-
-	prev := scs[0]
-	didx := 1
-	for i := 1; i < len(scs); i++ {
-		sc := scs[i]
-		if sc.Slot != prev.Slot {
-			return nil, errors.Wrapf(errBlobSlotMismatch, "%d != %d", sc.Slot, prev.Slot)
-		}
-		if !bytes.Equal(sc.BlockParentRoot, prev.BlockParentRoot) {
-			return nil, errors.Wrapf(errBlobParentMismatch, "%x != %x", sc.BlockParentRoot, prev.BlockParentRoot)
-		}
-		if !bytes.Equal(sc.BlockRoot, prev.BlockRoot) {
-			return nil, errors.Wrapf(errBlobRootMismatch, "%x != %x", sc.BlockRoot, prev.BlockRoot)
-		}
-		if sc.ProposerIndex != prev.ProposerIndex {
-			return nil, errors.Wrapf(errBlobProposerMismatch, "%d != %d", sc.ProposerIndex, prev.ProposerIndex)
-		}
-		// skip duplicate
-		if sc.Index == prev.Index {
-			continue
-		}
-		if didx != i {
-			scs[didx] = scs[i]
-		}
-		prev = scs[i]
-		didx += 1
-	}
-
-	if didx > fieldparams.MaxBlobsPerBlock {
-		return nil, errors.Wrapf(errBlobSidecarLimit, "%d > %d", didx, fieldparams.MaxBlobsPerBlock)
-	}
-	return scs[0:didx], nil
-}
-
-// sortSidecars sorts the sidecars by their index.
-func sortSidecars(scs []*ethpb.DeprecatedBlobSidecar) {
-	sort.Slice(scs, func(i, j int) bool {
-		return scs[i].Index < scs[j].Index
-	})
-}
-
-// BlobSidecarsByRoot retrieves the blobs for the given beacon block root.
-// If the `indices` argument is omitted, all blobs for the root will be returned.
-// Otherwise, the result will be filtered to only include the specified indices.
-// An error will result if an invalid index is specified.
-// The bucket size is bounded by 131072 entries. That's the most blobs a node will keep before rotating it out.
-func (s *Store) BlobSidecarsByRoot(ctx context.Context, root [32]byte, indices ...uint64) ([]*ethpb.DeprecatedBlobSidecar, error) {
-	ctx, span := trace.StartSpan(ctx, "BeaconDB.BlobSidecarsByRoot")
-	defer span.End()
-
-	var enc []byte
-	if err := s.db.View(func(tx *bolt.Tx) error {
-		c := tx.Bucket(blobsBucket).Cursor()
-		// Bucket size is bounded and bolt cursors are fast. Moreover, a thin caching layer can be added.
-		for k, v := c.First(); k != nil; k, v = c.Next() {
-			if bytes.HasSuffix(k, root[:]) {
-				enc = v
-				break
-			}
-		}
-		return nil
-	}); err != nil {
-		return nil, err
-	}
-	if enc == nil {
-		return nil, ErrNotFound
-	}
-	sc := &ethpb.DeprecatedBlobSidecars{}
-	if err := decode(ctx, enc, sc); err != nil {
-		return nil, err
-	}
-
-	return filterForIndices(sc, indices...)
-}
-
-func filterForIndices(sc *ethpb.DeprecatedBlobSidecars, indices ...uint64) ([]*ethpb.DeprecatedBlobSidecar, error) {
-	if len(indices) == 0 {
-		return sc.Sidecars, nil
-	}
-	// This loop assumes that the BlobSidecars value stores the complete set of blobs for a block
-	// in ascending order from eg 0..3, without gaps. This allows us to assume the indices argument
-	// maps 1:1 with indices in the BlobSidecars storage object.
-	maxIdx := uint64(len(sc.Sidecars)) - 1
-	sidecars := make([]*ethpb.DeprecatedBlobSidecar, len(indices))
-	for i, idx := range indices {
-		if idx > maxIdx {
-			return nil, errors.Wrapf(ErrNotFound, "BlobSidecars missing index: index %d", idx)
-		}
-		sidecars[i] = sc.Sidecars[idx]
-	}
-	return sidecars, nil
-}
-
-// BlobSidecarsBySlot retrieves BlobSidecars for the given slot.
-// If the `indices` argument is omitted, all blobs for the slot will be returned.
-// Otherwise, the result will be filtered to only include the specified indices.
-// An error will result if an invalid index is specified.
-// The bucket size is bounded by 131072 entries. That's the most blobs a node will keep before rotating it out.
-func (s *Store) BlobSidecarsBySlot(ctx context.Context, slot types.Slot, indices ...uint64) ([]*ethpb.DeprecatedBlobSidecar, error) {
-	ctx, span := trace.StartSpan(ctx, "BeaconDB.BlobSidecarsBySlot")
-	defer span.End()
-
-	var enc []byte
-	sk := s.slotKey(slot)
-	if err := s.db.View(func(tx *bolt.Tx) error {
-		c := tx.Bucket(blobsBucket).Cursor()
-		// Bucket size is bounded and bolt cursors are fast. Moreover, a thin caching layer can be added.
-		for k, v := c.Seek(sk); bytes.HasPrefix(k, sk); k, _ = c.Next() {
-			slotInKey := bytesutil.BytesToSlotBigEndian(k[8:16])
-			if slotInKey == slot {
-				enc = v
-				break
-			}
-		}
-		return nil
-	}); err != nil {
-		return nil, err
-	}
-	if enc == nil {
-		return nil, ErrNotFound
-	}
-	sc := &ethpb.DeprecatedBlobSidecars{}
-	if err := decode(ctx, enc, sc); err != nil {
-		return nil, err
-	}
-
-	return filterForIndices(sc, indices...)
-}
-
-// DeleteBlobSidecars returns true if the blobs are in the db.
-func (s *Store) DeleteBlobSidecars(ctx context.Context, beaconBlockRoot [32]byte) error {
-	_, span := trace.StartSpan(ctx, "BeaconDB.DeleteBlobSidecar")
-	defer span.End()
-	return s.db.Update(func(tx *bolt.Tx) error {
-		bkt := tx.Bucket(blobsBucket)
-		c := bkt.Cursor()
-		for k, _ := c.First(); k != nil; k, _ = c.Next() {
-			if bytes.HasSuffix(k, beaconBlockRoot[:]) {
-				if err := bkt.Delete(k); err != nil {
-					return err
-				}
-			}
-		}
-		return nil
-	})
-}
-
-// We define a blob sidecar key as: bytes(slot_to_rotating_buffer(blob.slot)) ++ bytes(blob.slot) ++ blob.block_root
-// where slot_to_rotating_buffer(slot) = slot % MAX_SLOTS_TO_PERSIST_BLOBS.
-func (s *Store) blobSidecarKey(blob *ethpb.DeprecatedBlobSidecar) blobRotatingKey {
-	key := s.slotKey(blob.Slot)
-	key = append(key, bytesutil.SlotToBytesBigEndian(blob.Slot)...)
-	key = append(key, blob.BlockRoot...)
-	return key
-}
-
-func (s *Store) slotKey(slot types.Slot) []byte {
-	return bytesutil.SlotToBytesBigEndian(slot.ModSlot(s.blobRetentionSlots()))
-}
-
-func (s *Store) blobRetentionSlots() types.Slot {
-	return types.Slot(s.blobRetentionEpochs.Mul(uint64(params.BeaconConfig().SlotsPerEpoch)))
-}
-
-var errBlobRetentionEpochMismatch = errors.New("epochs for blobs request value in DB does not match runtime config")
-
-func (s *Store) checkEpochsForBlobSidecarsRequestBucket(db *bolt.DB) error {
-	uRetentionEpochs := uint64(s.blobRetentionEpochs)
-	if err := db.Update(func(tx *bolt.Tx) error {
-		b := tx.Bucket(chainMetadataBucket)
-		v := b.Get(blobRetentionEpochsKey)
-		if v == nil {
-			if err := b.Put(blobRetentionEpochsKey, bytesutil.Uint64ToBytesBigEndian(uRetentionEpochs)); err != nil {
-				return err
-			}
-			return nil
-		}
-		e := bytesutil.BytesToUint64BigEndian(v)
-		if e != uRetentionEpochs {
-			return errors.Wrapf(errBlobRetentionEpochMismatch, "db=%d, config=%d", e, uRetentionEpochs)
-		}
-		return nil
-	}); err != nil {
-		return err
-	}
-	return nil
-}
diff --git a/beacon-chain/db/kv/blob_test.go b/beacon-chain/db/kv/blob_test.go
deleted file mode 100644
index 527f39b2e..000000000
--- a/beacon-chain/db/kv/blob_test.go
+++ /dev/null
@@ -1,532 +0,0 @@
-package kv
-
-import (
-	"context"
-	"crypto/rand"
-	"fmt"
-	"testing"
-
-	"github.com/pkg/errors"
-	fieldparams "github.com/prysmaticlabs/prysm/v4/config/fieldparams"
-	"github.com/prysmaticlabs/prysm/v4/config/params"
-	"github.com/prysmaticlabs/prysm/v4/consensus-types/primitives"
-	types "github.com/prysmaticlabs/prysm/v4/consensus-types/primitives"
-	"github.com/prysmaticlabs/prysm/v4/encoding/bytesutil"
-	ethpb "github.com/prysmaticlabs/prysm/v4/proto/prysm/v1alpha1"
-	"github.com/prysmaticlabs/prysm/v4/testing/assertions"
-	"github.com/prysmaticlabs/prysm/v4/testing/require"
-	bolt "go.etcd.io/bbolt"
-)
-
-func equalBlobSlices(expect []*ethpb.DeprecatedBlobSidecar, got []*ethpb.DeprecatedBlobSidecar) error {
-	if len(expect) != len(got) {
-		return fmt.Errorf("mismatched lengths, expect=%d, got=%d", len(expect), len(got))
-	}
-	for i := 0; i < len(expect); i++ {
-		es := expect[i]
-		gs := got[i]
-		var e string
-		assertions.DeepEqual(assertions.SprintfAssertionLoggerFn(&e), es, gs)
-		if e != "" {
-			return errors.New(e)
-		}
-	}
-	return nil
-}
-
-func TestStore_BlobSidecars(t *testing.T) {
-	ctx := context.Background()
-
-	t.Run("empty", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, 0)
-		require.ErrorContains(t, "nil or empty blob sidecars", db.SaveBlobSidecar(ctx, scs))
-	})
-	t.Run("empty by root", func(t *testing.T) {
-		db := setupDB(t)
-		got, err := db.BlobSidecarsByRoot(ctx, [32]byte{})
-		require.ErrorIs(t, ErrNotFound, err)
-		require.Equal(t, 0, len(got))
-	})
-	t.Run("empty by slot", func(t *testing.T) {
-		db := setupDB(t)
-		got, err := db.BlobSidecarsBySlot(ctx, 1)
-		require.ErrorIs(t, ErrNotFound, err)
-		require.Equal(t, 0, len(got))
-	})
-	t.Run("save and retrieve by root (one)", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, 1)
-		require.NoError(t, db.SaveBlobSidecar(ctx, scs))
-		require.Equal(t, 1, len(scs))
-		got, err := db.BlobSidecarsByRoot(ctx, bytesutil.ToBytes32(scs[0].BlockRoot))
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(scs, got))
-	})
-	t.Run("save and retrieve by root (max), per batch", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-		require.NoError(t, db.SaveBlobSidecar(ctx, scs))
-		require.Equal(t, fieldparams.MaxBlobsPerBlock, len(scs))
-		got, err := db.BlobSidecarsByRoot(ctx, bytesutil.ToBytes32(scs[0].BlockRoot))
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(scs, got))
-	})
-	t.Run("save and retrieve by root, max and individually", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-		for _, sc := range scs {
-			require.NoError(t, db.SaveBlobSidecar(ctx, []*ethpb.DeprecatedBlobSidecar{sc}))
-		}
-		require.Equal(t, fieldparams.MaxBlobsPerBlock, len(scs))
-		got, err := db.BlobSidecarsByRoot(ctx, bytesutil.ToBytes32(scs[0].BlockRoot))
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(scs, got))
-	})
-	t.Run("save and retrieve valid subset by root", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-		require.NoError(t, db.SaveBlobSidecar(ctx, scs))
-		require.Equal(t, fieldparams.MaxBlobsPerBlock, len(scs))
-
-		// we'll request indices 0 and 3, so make a slice with those indices for comparison
-		expect := make([]*ethpb.DeprecatedBlobSidecar, 2)
-		expect[0] = scs[0]
-		expect[1] = scs[3]
-
-		got, err := db.BlobSidecarsByRoot(ctx, bytesutil.ToBytes32(scs[0].BlockRoot), 0, 3)
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(expect, got))
-		require.Equal(t, uint64(0), got[0].Index)
-		require.Equal(t, uint64(3), got[1].Index)
-	})
-	t.Run("error for invalid index when retrieving by root", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-		require.NoError(t, db.SaveBlobSidecar(ctx, scs))
-		require.Equal(t, fieldparams.MaxBlobsPerBlock, len(scs))
-
-		got, err := db.BlobSidecarsByRoot(ctx, bytesutil.ToBytes32(scs[0].BlockRoot), uint64(len(scs)))
-		require.ErrorIs(t, err, ErrNotFound)
-		require.Equal(t, 0, len(got))
-	})
-	t.Run("save and retrieve by slot (one)", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, 1)
-		require.NoError(t, db.SaveBlobSidecar(ctx, scs))
-		require.Equal(t, 1, len(scs))
-		got, err := db.BlobSidecarsBySlot(ctx, scs[0].Slot)
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(scs, got))
-	})
-	t.Run("save and retrieve by slot (max)", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-		require.NoError(t, db.SaveBlobSidecar(ctx, scs))
-		require.Equal(t, fieldparams.MaxBlobsPerBlock, len(scs))
-		got, err := db.BlobSidecarsBySlot(ctx, scs[0].Slot)
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(scs, got))
-	})
-	t.Run("save and retrieve by slot, max and individually", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-		for _, sc := range scs {
-			require.NoError(t, db.SaveBlobSidecar(ctx, []*ethpb.DeprecatedBlobSidecar{sc}))
-		}
-		require.Equal(t, fieldparams.MaxBlobsPerBlock, len(scs))
-		got, err := db.BlobSidecarsBySlot(ctx, scs[0].Slot)
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(scs, got))
-	})
-	t.Run("save and retrieve valid subset by slot", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-		require.NoError(t, db.SaveBlobSidecar(ctx, scs))
-		require.Equal(t, fieldparams.MaxBlobsPerBlock, len(scs))
-
-		// we'll request indices 0 and 3, so make a slice with those indices for comparison
-		expect := make([]*ethpb.DeprecatedBlobSidecar, 2)
-		expect[0] = scs[0]
-		expect[1] = scs[3]
-
-		got, err := db.BlobSidecarsBySlot(ctx, scs[0].Slot, 0, 3)
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(expect, got))
-
-		require.Equal(t, uint64(0), got[0].Index)
-		require.Equal(t, uint64(3), got[1].Index)
-	})
-	t.Run("error for invalid index when retrieving by slot", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-		require.NoError(t, db.SaveBlobSidecar(ctx, scs))
-		require.Equal(t, fieldparams.MaxBlobsPerBlock, len(scs))
-
-		got, err := db.BlobSidecarsBySlot(ctx, scs[0].Slot, uint64(len(scs)))
-		require.ErrorIs(t, err, ErrNotFound)
-		require.Equal(t, 0, len(got))
-	})
-	t.Run("delete works", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-		require.NoError(t, db.SaveBlobSidecar(ctx, scs))
-		require.Equal(t, fieldparams.MaxBlobsPerBlock, len(scs))
-		got, err := db.BlobSidecarsByRoot(ctx, bytesutil.ToBytes32(scs[0].BlockRoot))
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(scs, got))
-		require.NoError(t, db.DeleteBlobSidecars(ctx, bytesutil.ToBytes32(scs[0].BlockRoot)))
-		got, err = db.BlobSidecarsByRoot(ctx, bytesutil.ToBytes32(scs[0].BlockRoot))
-		require.ErrorIs(t, ErrNotFound, err)
-		require.Equal(t, 0, len(got))
-	})
-	t.Run("saving blob different times", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-
-		for i := 0; i < fieldparams.MaxBlobsPerBlock; i++ {
-			scs[i].Slot = primitives.Slot(i)
-			scs[i].BlockRoot = bytesutil.PadTo([]byte{byte(i)}, 32)
-			require.NoError(t, db.SaveBlobSidecar(ctx, []*ethpb.DeprecatedBlobSidecar{scs[i]}))
-			br := bytesutil.ToBytes32(scs[i].BlockRoot)
-			saved, err := db.BlobSidecarsByRoot(ctx, br)
-			require.NoError(t, err)
-			require.NoError(t, equalBlobSlices([]*ethpb.DeprecatedBlobSidecar{scs[i]}, saved))
-		}
-	})
-	t.Run("saving a new blob for rotation (batch)", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-		require.NoError(t, db.SaveBlobSidecar(ctx, scs))
-		require.Equal(t, fieldparams.MaxBlobsPerBlock, len(scs))
-		oldBlockRoot := scs[0].BlockRoot
-		got, err := db.BlobSidecarsByRoot(ctx, bytesutil.ToBytes32(oldBlockRoot))
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(scs, got))
-
-		newScs := generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-		newRetentionSlot := primitives.Slot(params.BeaconConfig().MinEpochsForBlobsSidecarsRequest.Mul(uint64(params.BeaconConfig().SlotsPerEpoch)))
-		for _, sc := range newScs {
-			sc.Slot = sc.Slot + newRetentionSlot
-		}
-		require.NoError(t, db.SaveBlobSidecar(ctx, newScs))
-
-		_, err = db.BlobSidecarsBySlot(ctx, 100)
-		require.ErrorIs(t, ErrNotFound, err)
-
-		got, err = db.BlobSidecarsByRoot(ctx, bytesutil.ToBytes32(newScs[0].BlockRoot))
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(newScs, got))
-	})
-	t.Run("save multiple blobs after new rotation (individually)", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-		for _, sc := range scs {
-			require.NoError(t, db.SaveBlobSidecar(ctx, []*ethpb.DeprecatedBlobSidecar{sc}))
-		}
-		got, err := db.BlobSidecarsByRoot(ctx, bytesutil.ToBytes32(scs[0].BlockRoot))
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(scs, got))
-
-		scs = generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-		newRetentionSlot := primitives.Slot(params.BeaconConfig().MinEpochsForBlobsSidecarsRequest.Mul(uint64(params.BeaconConfig().SlotsPerEpoch)))
-		for _, sc := range scs {
-			sc.Slot = sc.Slot + newRetentionSlot
-		}
-		for _, sc := range scs {
-			require.NoError(t, db.SaveBlobSidecar(ctx, []*ethpb.DeprecatedBlobSidecar{sc}))
-		}
-
-		_, err = db.BlobSidecarsBySlot(ctx, 100)
-		require.ErrorIs(t, ErrNotFound, err)
-
-		got, err = db.BlobSidecarsByRoot(ctx, bytesutil.ToBytes32(scs[0].BlockRoot))
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(scs, got))
-	})
-	t.Run("save multiple blobs after new rotation (batch then individually)", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-		require.NoError(t, db.SaveBlobSidecar(ctx, scs))
-		require.Equal(t, fieldparams.MaxBlobsPerBlock, len(scs))
-		oldBlockRoot := scs[0].BlockRoot
-		got, err := db.BlobSidecarsByRoot(ctx, bytesutil.ToBytes32(oldBlockRoot))
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(scs, got))
-
-		scs = generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-		newRetentionSlot := primitives.Slot(params.BeaconConfig().MinEpochsForBlobsSidecarsRequest.Mul(uint64(params.BeaconConfig().SlotsPerEpoch)))
-		for _, sc := range scs {
-			sc.Slot = sc.Slot + newRetentionSlot
-		}
-		for _, sc := range scs {
-			require.NoError(t, db.SaveBlobSidecar(ctx, []*ethpb.DeprecatedBlobSidecar{sc}))
-		}
-
-		_, err = db.BlobSidecarsBySlot(ctx, 100)
-		require.ErrorIs(t, ErrNotFound, err)
-
-		got, err = db.BlobSidecarsByRoot(ctx, bytesutil.ToBytes32(scs[0].BlockRoot))
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(scs, got))
-	})
-	t.Run("save multiple blobs after new rotation (individually then batch)", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-		for _, sc := range scs {
-			require.NoError(t, db.SaveBlobSidecar(ctx, []*ethpb.DeprecatedBlobSidecar{sc}))
-		}
-		got, err := db.BlobSidecarsByRoot(ctx, bytesutil.ToBytes32(scs[0].BlockRoot))
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(scs, got))
-
-		scs = generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock)
-		newRetentionSlot := primitives.Slot(params.BeaconConfig().MinEpochsForBlobsSidecarsRequest.Mul(uint64(params.BeaconConfig().SlotsPerEpoch)))
-		for _, sc := range scs {
-			sc.Slot = sc.Slot + newRetentionSlot
-		}
-		require.NoError(t, db.SaveBlobSidecar(ctx, scs))
-
-		_, err = db.BlobSidecarsBySlot(ctx, 100)
-		require.ErrorIs(t, ErrNotFound, err)
-
-		got, err = db.BlobSidecarsByRoot(ctx, bytesutil.ToBytes32(scs[0].BlockRoot))
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(scs, got))
-	})
-	t.Run("save equivocating blobs", func(t *testing.T) {
-		db := setupDB(t)
-		scs := generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock/2)
-		eScs := generateEquivocatingBlobSidecars(t, fieldparams.MaxBlobsPerBlock/2)
-
-		for i, sc := range scs {
-			require.NoError(t, db.SaveBlobSidecar(ctx, []*ethpb.DeprecatedBlobSidecar{sc}))
-			require.NoError(t, db.SaveBlobSidecar(ctx, []*ethpb.DeprecatedBlobSidecar{eScs[i]}))
-		}
-
-		got, err := db.BlobSidecarsByRoot(ctx, bytesutil.ToBytes32(scs[0].BlockRoot))
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(scs, got))
-
-		got, err = db.BlobSidecarsByRoot(ctx, bytesutil.ToBytes32(eScs[0].BlockRoot))
-		require.NoError(t, err)
-		require.NoError(t, equalBlobSlices(eScs, got))
-	})
-}
-
-func generateBlobSidecars(t *testing.T, n uint64) []*ethpb.DeprecatedBlobSidecar {
-	blobSidecars := make([]*ethpb.DeprecatedBlobSidecar, n)
-	for i := uint64(0); i < n; i++ {
-		blobSidecars[i] = generateBlobSidecar(t, i)
-	}
-	return blobSidecars
-}
-
-func generateBlobSidecar(t *testing.T, index uint64) *ethpb.DeprecatedBlobSidecar {
-	blob := make([]byte, 131072)
-	_, err := rand.Read(blob)
-	require.NoError(t, err)
-	kzgCommitment := make([]byte, 48)
-	_, err = rand.Read(kzgCommitment)
-	require.NoError(t, err)
-	kzgProof := make([]byte, 48)
-	_, err = rand.Read(kzgProof)
-	require.NoError(t, err)
-	return &ethpb.DeprecatedBlobSidecar{
-		BlockRoot:       bytesutil.PadTo([]byte{'a'}, 32),
-		Index:           index,
-		Slot:            100,
-		BlockParentRoot: bytesutil.PadTo([]byte{'b'}, 32),
-		ProposerIndex:   101,
-		Blob:            blob,
-		KzgCommitment:   kzgCommitment,
-		KzgProof:        kzgProof,
-	}
-}
-
-func generateEquivocatingBlobSidecars(t *testing.T, n uint64) []*ethpb.DeprecatedBlobSidecar {
-	blobSidecars := make([]*ethpb.DeprecatedBlobSidecar, n)
-	for i := uint64(0); i < n; i++ {
-		blobSidecars[i] = generateEquivocatingBlobSidecar(t, i)
-	}
-	return blobSidecars
-}
-
-func generateEquivocatingBlobSidecar(t *testing.T, index uint64) *ethpb.DeprecatedBlobSidecar {
-	blob := make([]byte, 131072)
-	_, err := rand.Read(blob)
-	require.NoError(t, err)
-	kzgCommitment := make([]byte, 48)
-	_, err = rand.Read(kzgCommitment)
-	require.NoError(t, err)
-	kzgProof := make([]byte, 48)
-	_, err = rand.Read(kzgProof)
-	require.NoError(t, err)
-
-	return &ethpb.DeprecatedBlobSidecar{
-		BlockRoot:       bytesutil.PadTo([]byte{'c'}, 32),
-		Index:           index,
-		Slot:            100,
-		BlockParentRoot: bytesutil.PadTo([]byte{'b'}, 32),
-		ProposerIndex:   102,
-		Blob:            blob,
-		KzgCommitment:   kzgCommitment,
-		KzgProof:        kzgProof,
-	}
-}
-
-func Test_validUniqueSidecars_validation(t *testing.T) {
-	tests := []struct {
-		name string
-		scs  []*ethpb.DeprecatedBlobSidecar
-		err  error
-	}{
-		{name: "empty", scs: []*ethpb.DeprecatedBlobSidecar{}, err: errEmptySidecar},
-		{name: "too many sidecars", scs: generateBlobSidecars(t, fieldparams.MaxBlobsPerBlock+1), err: errBlobSidecarLimit},
-		{name: "invalid slot", scs: []*ethpb.DeprecatedBlobSidecar{{Slot: 1}, {Slot: 2}}, err: errBlobSlotMismatch},
-		{name: "invalid proposer index", scs: []*ethpb.DeprecatedBlobSidecar{{ProposerIndex: 1}, {ProposerIndex: 2}}, err: errBlobProposerMismatch},
-		{name: "invalid root", scs: []*ethpb.DeprecatedBlobSidecar{{BlockRoot: []byte{1}}, {BlockRoot: []byte{2}}}, err: errBlobRootMismatch},
-		{name: "invalid parent root", scs: []*ethpb.DeprecatedBlobSidecar{{BlockParentRoot: []byte{1}}, {BlockParentRoot: []byte{2}}}, err: errBlobParentMismatch},
-		{name: "happy path", scs: []*ethpb.DeprecatedBlobSidecar{{Index: 0}, {Index: 1}}},
-	}
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			_, err := validUniqueSidecars(tt.scs)
-			if tt.err != nil {
-				require.ErrorIs(t, err, tt.err)
-			} else {
-				require.NoError(t, err)
-			}
-		})
-	}
-}
-
-func Test_validUniqueSidecars_dedup(t *testing.T) {
-	cases := []struct {
-		name     string
-		scs      []*ethpb.DeprecatedBlobSidecar
-		expected []*ethpb.DeprecatedBlobSidecar
-		err      error
-	}{
-		{
-			name:     "duplicate sidecar",
-			scs:      []*ethpb.DeprecatedBlobSidecar{{Index: 1}, {Index: 1}},
-			expected: []*ethpb.DeprecatedBlobSidecar{{Index: 1}},
-		},
-		{
-			name:     "single sidecar",
-			scs:      []*ethpb.DeprecatedBlobSidecar{{Index: 1}},
-			expected: []*ethpb.DeprecatedBlobSidecar{{Index: 1}},
-		},
-		{
-			name:     "multiple duplicates",
-			scs:      []*ethpb.DeprecatedBlobSidecar{{Index: 1}, {Index: 2}, {Index: 2}, {Index: 3}, {Index: 3}},
-			expected: []*ethpb.DeprecatedBlobSidecar{{Index: 1}, {Index: 2}, {Index: 3}},
-		},
-		{
-			name:     "ok number after de-dupe, > 6 before",
-			scs:      []*ethpb.DeprecatedBlobSidecar{{Index: 1}, {Index: 2}, {Index: 2}, {Index: 2}, {Index: 2}, {Index: 3}, {Index: 3}},
-			expected: []*ethpb.DeprecatedBlobSidecar{{Index: 1}, {Index: 2}, {Index: 3}},
-		},
-		{
-			name:     "max unique, no dupes",
-			scs:      []*ethpb.DeprecatedBlobSidecar{{Index: 1}, {Index: 2}, {Index: 3}, {Index: 4}, {Index: 5}, {Index: 6}},
-			expected: []*ethpb.DeprecatedBlobSidecar{{Index: 1}, {Index: 2}, {Index: 3}, {Index: 4}, {Index: 5}, {Index: 6}},
-		},
-		{
-			name: "too many unique",
-			scs:  []*ethpb.DeprecatedBlobSidecar{{Index: 1}, {Index: 2}, {Index: 3}, {Index: 4}, {Index: 5}, {Index: 6}, {Index: 7}},
-			err:  errBlobSidecarLimit,
-		},
-		{
-			name: "too many unique with dupes",
-			scs:  []*ethpb.DeprecatedBlobSidecar{{Index: 1}, {Index: 1}, {Index: 1}, {Index: 2}, {Index: 3}, {Index: 4}, {Index: 5}, {Index: 6}, {Index: 7}},
-			err:  errBlobSidecarLimit,
-		},
-	}
-	for _, c := range cases {
-		t.Run(c.name, func(t *testing.T) {
-			u, err := validUniqueSidecars(c.scs)
-			if c.err != nil {
-				require.ErrorIs(t, err, c.err)
-			} else {
-				require.NoError(t, err)
-			}
-			require.Equal(t, len(c.expected), len(u))
-		})
-	}
-}
-
-func TestStore_sortSidecars(t *testing.T) {
-	scs := []*ethpb.DeprecatedBlobSidecar{
-		{Index: 6},
-		{Index: 4},
-		{Index: 2},
-		{Index: 1},
-		{Index: 3},
-		{Index: 5},
-		{},
-	}
-	sortSidecars(scs)
-	for i := 0; i < len(scs)-1; i++ {
-		require.Equal(t, uint64(i), scs[i].Index)
-	}
-}
-
-func BenchmarkStore_BlobSidecarsByRoot(b *testing.B) {
-	s := setupDB(b)
-	ctx := context.Background()
-	require.NoError(b, s.SaveBlobSidecar(ctx, []*ethpb.DeprecatedBlobSidecar{
-		{BlockRoot: bytesutil.PadTo([]byte{'a'}, 32), Slot: 0},
-	}))
-
-	err := s.db.Update(func(tx *bolt.Tx) error {
-		bkt := tx.Bucket(blobsBucket)
-		for i := 1; i < 131071; i++ {
-			r := make([]byte, 32)
-			_, err := rand.Read(r)
-			require.NoError(b, err)
-			scs := []*ethpb.DeprecatedBlobSidecar{
-				{BlockRoot: r, Slot: primitives.Slot(i)},
-			}
-			k := s.blobSidecarKey(scs[0])
-			encodedBlobSidecar, err := encode(ctx, &ethpb.DeprecatedBlobSidecars{Sidecars: scs})
-			require.NoError(b, err)
-			require.NoError(b, bkt.Put(k, encodedBlobSidecar))
-		}
-		return nil
-	})
-	require.NoError(b, err)
-
-	require.NoError(b, s.SaveBlobSidecar(ctx, []*ethpb.DeprecatedBlobSidecar{
-		{BlockRoot: bytesutil.PadTo([]byte{'b'}, 32), Slot: 131071},
-	}))
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		_, err := s.BlobSidecarsByRoot(ctx, [32]byte{'b'})
-		require.NoError(b, err)
-	}
-}
-
-func Test_checkEpochsForBlobSidecarsRequestBucket(t *testing.T) {
-	s := setupDB(t)
-
-	require.NoError(t, s.checkEpochsForBlobSidecarsRequestBucket(s.db)) // First write
-	require.NoError(t, s.checkEpochsForBlobSidecarsRequestBucket(s.db)) // First check
-
-	s.blobRetentionEpochs += 1
-	require.ErrorIs(t, s.checkEpochsForBlobSidecarsRequestBucket(s.db), errBlobRetentionEpochMismatch)
-}
-
-func TestBlobRotatingKey(t *testing.T) {
-	s := setupDB(t)
-	k := s.blobSidecarKey(&ethpb.DeprecatedBlobSidecar{
-		Slot:      1,
-		BlockRoot: []byte{2},
-	})
-
-	require.Equal(t, types.Slot(1), k.Slot())
-	require.DeepEqual(t, []byte{2}, k.BlockRoot())
-	require.DeepEqual(t, s.slotKey(types.Slot(1)), k.BufferPrefix())
-}
diff --git a/beacon-chain/db/kv/kv.go b/beacon-chain/db/kv/kv.go
index a75c82f30..4edd992fd 100644
--- a/beacon-chain/db/kv/kv.go
+++ b/beacon-chain/db/kv/kv.go
@@ -18,7 +18,6 @@ import (
 	"github.com/prysmaticlabs/prysm/v4/config/features"
 	"github.com/prysmaticlabs/prysm/v4/config/params"
 	"github.com/prysmaticlabs/prysm/v4/consensus-types/blocks"
-	"github.com/prysmaticlabs/prysm/v4/consensus-types/primitives"
 	"github.com/prysmaticlabs/prysm/v4/io/file"
 	bolt "go.etcd.io/bbolt"
 )
@@ -91,7 +90,6 @@ type Store struct {
 	validatorEntryCache *ristretto.Cache
 	stateSummaryCache   *stateSummaryCache
 	ctx                 context.Context
-	blobRetentionEpochs primitives.Epoch
 }
 
 // StoreDatafilePath is the canonical construction of a full
@@ -138,13 +136,6 @@ var Buckets = [][]byte{
 // KVStoreOption is a functional option that modifies a kv.Store.
 type KVStoreOption func(*Store)
 
-// WithBlobRetentionEpochs sets the variable configuring the blob retention window.
-func WithBlobRetentionEpochs(e primitives.Epoch) KVStoreOption {
-	return func(s *Store) {
-		s.blobRetentionEpochs = e
-	}
-}
-
 // NewKVStore initializes a new boltDB key-value store at the directory
 // path specified, creates the kv-buckets based on the schema, and stores
 // an open connection db object as a property of the Store struct.
@@ -217,14 +208,6 @@ func NewKVStore(ctx context.Context, dirPath string, opts ...KVStoreOption) (*St
 		return nil, err
 	}
 
-	if err := kv.checkEpochsForBlobSidecarsRequestBucket(boltDB); err != nil {
-		return nil, errors.Wrap(err, "failed to check epochs for blob sidecars request bucket")
-	}
-
-	// set a default so that tests don't break
-	if kv.blobRetentionEpochs == 0 {
-		kv.blobRetentionEpochs = params.BeaconConfig().MinEpochsForBlobsSidecarsRequest
-	}
 	return kv, nil
 }
 
diff --git a/beacon-chain/db/kv/kv_test.go b/beacon-chain/db/kv/kv_test.go
index d20d8430d..3941d468c 100644
--- a/beacon-chain/db/kv/kv_test.go
+++ b/beacon-chain/db/kv/kv_test.go
@@ -6,7 +6,6 @@ import (
 	"testing"
 
 	"github.com/prysmaticlabs/prysm/v4/config/features"
-	"github.com/prysmaticlabs/prysm/v4/config/params"
 	"github.com/prysmaticlabs/prysm/v4/consensus-types/blocks"
 	ethpb "github.com/prysmaticlabs/prysm/v4/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/v4/testing/require"
@@ -16,8 +15,7 @@ import (
 
 // setupDB instantiates and returns a Store instance.
 func setupDB(t testing.TB) *Store {
-	opt := WithBlobRetentionEpochs(params.BeaconConfig().MinEpochsForBlobsSidecarsRequest)
-	db, err := NewKVStore(context.Background(), t.TempDir(), opt)
+	db, err := NewKVStore(context.Background(), t.TempDir())
 	require.NoError(t, err, "Failed to instantiate DB")
 	t.Cleanup(func() {
 		require.NoError(t, db.Close(), "Failed to close database")
diff --git a/beacon-chain/db/kv/schema.go b/beacon-chain/db/kv/schema.go
index b7b1f1af5..a5c89230a 100644
--- a/beacon-chain/db/kv/schema.go
+++ b/beacon-chain/db/kv/schema.go
@@ -47,10 +47,6 @@ var (
 	finalizedCheckpointKey     = []byte("finalized-checkpoint")
 	powchainDataKey            = []byte("powchain-data")
 	lastValidatedCheckpointKey = []byte("last-validated-checkpoint")
-	// blobRetentionEpochsKey determines the size of the blob circular buffer and how the keys in that buffer are
-	// determined. If this value changes, the existing data is invalidated, so storing it in the db
-	// allows us to assert at runtime that the db state is still consistent with the runtime state.
-	blobRetentionEpochsKey = []byte("blob-retention-epochs")
 
 	// Below keys are used to identify objects are to be fork compatible.
 	// Objects that are only compatible with specific forks should be prefixed with such keys.
diff --git a/beacon-chain/node/node.go b/beacon-chain/node/node.go
index c148734ad..916481074 100644
--- a/beacon-chain/node/node.go
+++ b/beacon-chain/node/node.go
@@ -398,7 +398,7 @@ func (b *BeaconNode) startDB(cliCtx *cli.Context, depositAddress string) error {
 
 	log.WithField("database-path", dbPath).Info("Checking DB")
 
-	d, err := kv.NewKVStore(b.ctx, dbPath, kv.WithBlobRetentionEpochs(b.blobRetentionEpochs))
+	d, err := kv.NewKVStore(b.ctx, dbPath)
 	if err != nil {
 		return err
 	}
@@ -421,7 +421,7 @@ func (b *BeaconNode) startDB(cliCtx *cli.Context, depositAddress string) error {
 			return errors.Wrap(err, "could not clear database")
 		}
 
-		d, err = kv.NewKVStore(b.ctx, dbPath, kv.WithBlobRetentionEpochs(b.blobRetentionEpochs))
+		d, err = kv.NewKVStore(b.ctx, dbPath)
 		if err != nil {
 			return errors.Wrap(err, "could not create new database")
 		}
diff --git a/proto/prysm/v1alpha1/BUILD.bazel b/proto/prysm/v1alpha1/BUILD.bazel
index 754d0428b..e9a969bb6 100644
--- a/proto/prysm/v1alpha1/BUILD.bazel
+++ b/proto/prysm/v1alpha1/BUILD.bazel
@@ -127,10 +127,8 @@ ssz_gen_marshal(
         "BuilderBid",
         "BuilderBidCapella",
         "BuilderBidDeneb",
-        "DeprecatedBlobSidecar",
         "BlobSidecar",
         "BlobSidecars",
-        "SignedBlobSidecar",
         "BlobIdentifier",
     ],
 )
diff --git a/proto/prysm/v1alpha1/blobs.pb.go b/proto/prysm/v1alpha1/blobs.pb.go
index 0c7c4b339..0d8e36937 100755
--- a/proto/prysm/v1alpha1/blobs.pb.go
+++ b/proto/prysm/v1alpha1/blobs.pb.go
@@ -23,211 +23,6 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-type DeprecatedBlobSidecars struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Sidecars []*DeprecatedBlobSidecar `protobuf:"bytes,1,rep,name=sidecars,proto3" json:"sidecars,omitempty"`
-}
-
-func (x *DeprecatedBlobSidecars) Reset() {
-	*x = DeprecatedBlobSidecars{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[0]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *DeprecatedBlobSidecars) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*DeprecatedBlobSidecars) ProtoMessage() {}
-
-func (x *DeprecatedBlobSidecars) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use DeprecatedBlobSidecars.ProtoReflect.Descriptor instead.
-func (*DeprecatedBlobSidecars) Descriptor() ([]byte, []int) {
-	return file_proto_prysm_v1alpha1_blobs_proto_rawDescGZIP(), []int{0}
-}
-
-func (x *DeprecatedBlobSidecars) GetSidecars() []*DeprecatedBlobSidecar {
-	if x != nil {
-		return x.Sidecars
-	}
-	return nil
-}
-
-type DeprecatedBlobSidecar struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	BlockRoot       []byte                                                                      `protobuf:"bytes,1,opt,name=block_root,json=blockRoot,proto3" json:"block_root,omitempty" ssz-size:"32"`
-	Index           uint64                                                                      `protobuf:"varint,2,opt,name=index,proto3" json:"index,omitempty"`
-	Slot            github_com_prysmaticlabs_prysm_v4_consensus_types_primitives.Slot           `protobuf:"varint,3,opt,name=slot,proto3" json:"slot,omitempty" cast-type:"github.com/prysmaticlabs/prysm/v4/consensus-types/primitives.Slot"`
-	BlockParentRoot []byte                                                                      `protobuf:"bytes,4,opt,name=block_parent_root,json=blockParentRoot,proto3" json:"block_parent_root,omitempty" ssz-size:"32"`
-	ProposerIndex   github_com_prysmaticlabs_prysm_v4_consensus_types_primitives.ValidatorIndex `protobuf:"varint,5,opt,name=proposer_index,json=proposerIndex,proto3" json:"proposer_index,omitempty" cast-type:"github.com/prysmaticlabs/prysm/v4/consensus-types/primitives.ValidatorIndex"`
-	Blob            []byte                                                                      `protobuf:"bytes,6,opt,name=blob,proto3" json:"blob,omitempty" ssz-size:"131072"`
-	KzgCommitment   []byte                                                                      `protobuf:"bytes,7,opt,name=kzg_commitment,json=kzgCommitment,proto3" json:"kzg_commitment,omitempty" ssz-size:"48"`
-	KzgProof        []byte                                                                      `protobuf:"bytes,8,opt,name=kzg_proof,json=kzgProof,proto3" json:"kzg_proof,omitempty" ssz-size:"48"`
-}
-
-func (x *DeprecatedBlobSidecar) Reset() {
-	*x = DeprecatedBlobSidecar{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[1]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *DeprecatedBlobSidecar) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*DeprecatedBlobSidecar) ProtoMessage() {}
-
-func (x *DeprecatedBlobSidecar) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[1]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use DeprecatedBlobSidecar.ProtoReflect.Descriptor instead.
-func (*DeprecatedBlobSidecar) Descriptor() ([]byte, []int) {
-	return file_proto_prysm_v1alpha1_blobs_proto_rawDescGZIP(), []int{1}
-}
-
-func (x *DeprecatedBlobSidecar) GetBlockRoot() []byte {
-	if x != nil {
-		return x.BlockRoot
-	}
-	return nil
-}
-
-func (x *DeprecatedBlobSidecar) GetIndex() uint64 {
-	if x != nil {
-		return x.Index
-	}
-	return 0
-}
-
-func (x *DeprecatedBlobSidecar) GetSlot() github_com_prysmaticlabs_prysm_v4_consensus_types_primitives.Slot {
-	if x != nil {
-		return x.Slot
-	}
-	return github_com_prysmaticlabs_prysm_v4_consensus_types_primitives.Slot(0)
-}
-
-func (x *DeprecatedBlobSidecar) GetBlockParentRoot() []byte {
-	if x != nil {
-		return x.BlockParentRoot
-	}
-	return nil
-}
-
-func (x *DeprecatedBlobSidecar) GetProposerIndex() github_com_prysmaticlabs_prysm_v4_consensus_types_primitives.ValidatorIndex {
-	if x != nil {
-		return x.ProposerIndex
-	}
-	return github_com_prysmaticlabs_prysm_v4_consensus_types_primitives.ValidatorIndex(0)
-}
-
-func (x *DeprecatedBlobSidecar) GetBlob() []byte {
-	if x != nil {
-		return x.Blob
-	}
-	return nil
-}
-
-func (x *DeprecatedBlobSidecar) GetKzgCommitment() []byte {
-	if x != nil {
-		return x.KzgCommitment
-	}
-	return nil
-}
-
-func (x *DeprecatedBlobSidecar) GetKzgProof() []byte {
-	if x != nil {
-		return x.KzgProof
-	}
-	return nil
-}
-
-type SignedBlobSidecar struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Message   *DeprecatedBlobSidecar `protobuf:"bytes,1,opt,name=message,proto3" json:"message,omitempty"`
-	Signature []byte                 `protobuf:"bytes,2,opt,name=signature,proto3" json:"signature,omitempty" ssz-size:"96"`
-}
-
-func (x *SignedBlobSidecar) Reset() {
-	*x = SignedBlobSidecar{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[2]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *SignedBlobSidecar) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*SignedBlobSidecar) ProtoMessage() {}
-
-func (x *SignedBlobSidecar) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[2]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use SignedBlobSidecar.ProtoReflect.Descriptor instead.
-func (*SignedBlobSidecar) Descriptor() ([]byte, []int) {
-	return file_proto_prysm_v1alpha1_blobs_proto_rawDescGZIP(), []int{2}
-}
-
-func (x *SignedBlobSidecar) GetMessage() *DeprecatedBlobSidecar {
-	if x != nil {
-		return x.Message
-	}
-	return nil
-}
-
-func (x *SignedBlobSidecar) GetSignature() []byte {
-	if x != nil {
-		return x.Signature
-	}
-	return nil
-}
-
 type BlindedBlobSidecars struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -239,7 +34,7 @@ type BlindedBlobSidecars struct {
 func (x *BlindedBlobSidecars) Reset() {
 	*x = BlindedBlobSidecars{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[3]
+		mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -252,7 +47,7 @@ func (x *BlindedBlobSidecars) String() string {
 func (*BlindedBlobSidecars) ProtoMessage() {}
 
 func (x *BlindedBlobSidecars) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[3]
+	mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[0]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -265,7 +60,7 @@ func (x *BlindedBlobSidecars) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use BlindedBlobSidecars.ProtoReflect.Descriptor instead.
 func (*BlindedBlobSidecars) Descriptor() ([]byte, []int) {
-	return file_proto_prysm_v1alpha1_blobs_proto_rawDescGZIP(), []int{3}
+	return file_proto_prysm_v1alpha1_blobs_proto_rawDescGZIP(), []int{0}
 }
 
 func (x *BlindedBlobSidecars) GetSidecars() []*BlindedBlobSidecar {
@@ -293,7 +88,7 @@ type BlindedBlobSidecar struct {
 func (x *BlindedBlobSidecar) Reset() {
 	*x = BlindedBlobSidecar{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[4]
+		mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -306,7 +101,7 @@ func (x *BlindedBlobSidecar) String() string {
 func (*BlindedBlobSidecar) ProtoMessage() {}
 
 func (x *BlindedBlobSidecar) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[4]
+	mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[1]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -319,7 +114,7 @@ func (x *BlindedBlobSidecar) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use BlindedBlobSidecar.ProtoReflect.Descriptor instead.
 func (*BlindedBlobSidecar) Descriptor() ([]byte, []int) {
-	return file_proto_prysm_v1alpha1_blobs_proto_rawDescGZIP(), []int{4}
+	return file_proto_prysm_v1alpha1_blobs_proto_rawDescGZIP(), []int{1}
 }
 
 func (x *BlindedBlobSidecar) GetBlockRoot() []byte {
@@ -390,7 +185,7 @@ type SignedBlindedBlobSidecar struct {
 func (x *SignedBlindedBlobSidecar) Reset() {
 	*x = SignedBlindedBlobSidecar{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[5]
+		mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[2]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -403,7 +198,7 @@ func (x *SignedBlindedBlobSidecar) String() string {
 func (*SignedBlindedBlobSidecar) ProtoMessage() {}
 
 func (x *SignedBlindedBlobSidecar) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[5]
+	mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[2]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -416,7 +211,7 @@ func (x *SignedBlindedBlobSidecar) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use SignedBlindedBlobSidecar.ProtoReflect.Descriptor instead.
 func (*SignedBlindedBlobSidecar) Descriptor() ([]byte, []int) {
-	return file_proto_prysm_v1alpha1_blobs_proto_rawDescGZIP(), []int{5}
+	return file_proto_prysm_v1alpha1_blobs_proto_rawDescGZIP(), []int{2}
 }
 
 func (x *SignedBlindedBlobSidecar) GetMessage() *BlindedBlobSidecar {
@@ -445,7 +240,7 @@ type BlobIdentifier struct {
 func (x *BlobIdentifier) Reset() {
 	*x = BlobIdentifier{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[6]
+		mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -458,7 +253,7 @@ func (x *BlobIdentifier) String() string {
 func (*BlobIdentifier) ProtoMessage() {}
 
 func (x *BlobIdentifier) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[6]
+	mi := &file_proto_prysm_v1alpha1_blobs_proto_msgTypes[3]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -471,7 +266,7 @@ func (x *BlobIdentifier) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use BlobIdentifier.ProtoReflect.Descriptor instead.
 func (*BlobIdentifier) Descriptor() ([]byte, []int) {
-	return file_proto_prysm_v1alpha1_blobs_proto_rawDescGZIP(), []int{6}
+	return file_proto_prysm_v1alpha1_blobs_proto_rawDescGZIP(), []int{3}
 }
 
 func (x *BlobIdentifier) GetBlockRoot() []byte {
@@ -496,109 +291,66 @@ var file_proto_prysm_v1alpha1_blobs_proto_rawDesc = []byte{
 	0x74, 0x6f, 0x12, 0x15, 0x65, 0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x2e, 0x65, 0x74, 0x68,
 	0x2e, 0x76, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0x1a, 0x1b, 0x70, 0x72, 0x6f, 0x74, 0x6f,
 	0x2f, 0x65, 0x74, 0x68, 0x2f, 0x65, 0x78, 0x74, 0x2f, 0x6f, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73,
-	0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x62, 0x0a, 0x16, 0x44, 0x65, 0x70, 0x72, 0x65, 0x63,
-	0x61, 0x74, 0x65, 0x64, 0x42, 0x6c, 0x6f, 0x62, 0x53, 0x69, 0x64, 0x65, 0x63, 0x61, 0x72, 0x73,
-	0x12, 0x48, 0x0a, 0x08, 0x73, 0x69, 0x64, 0x65, 0x63, 0x61, 0x72, 0x73, 0x18, 0x01, 0x20, 0x03,
-	0x28, 0x0b, 0x32, 0x2c, 0x2e, 0x65, 0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x2e, 0x65, 0x74,
-	0x68, 0x2e, 0x76, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0x2e, 0x44, 0x65, 0x70, 0x72, 0x65,
-	0x63, 0x61, 0x74, 0x65, 0x64, 0x42, 0x6c, 0x6f, 0x62, 0x53, 0x69, 0x64, 0x65, 0x63, 0x61, 0x72,
-	0x52, 0x08, 0x73, 0x69, 0x64, 0x65, 0x63, 0x61, 0x72, 0x73, 0x22, 0xcf, 0x03, 0x0a, 0x15, 0x44,
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+	0x7a, 0x67, 0x5f, 0x63, 0x6f, 0x6d, 0x6d, 0x69, 0x74, 0x6d, 0x65, 0x6e, 0x74, 0x18, 0x07, 0x20,
+	0x01, 0x28, 0x0c, 0x42, 0x06, 0x8a, 0xb5, 0x18, 0x02, 0x34, 0x38, 0x52, 0x0d, 0x6b, 0x7a, 0x67,
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+	0x63, 0x6b, 0x5f, 0x72, 0x6f, 0x6f, 0x74, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0c, 0x42, 0x06, 0x8a,
+	0xb5, 0x18, 0x02, 0x33, 0x32, 0x52, 0x09, 0x62, 0x6c, 0x6f, 0x63, 0x6b, 0x52, 0x6f, 0x6f, 0x74,
+	0x12, 0x14, 0x0a, 0x05, 0x69, 0x6e, 0x64, 0x65, 0x78, 0x18, 0x02, 0x20, 0x01, 0x28, 0x04, 0x52,
+	0x05, 0x69, 0x6e, 0x64, 0x65, 0x78, 0x42, 0x95, 0x01, 0x0a, 0x19, 0x6f, 0x72, 0x67, 0x2e, 0x65,
+	0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x2e, 0x65, 0x74, 0x68, 0x2e, 0x76, 0x31, 0x61, 0x6c,
+	0x70, 0x68, 0x61, 0x31, 0x42, 0x0a, 0x42, 0x6c, 0x6f, 0x62, 0x73, 0x50, 0x72, 0x6f, 0x74, 0x6f,
+	0x50, 0x01, 0x5a, 0x3a, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x70,
+	0x72, 0x79, 0x73, 0x6d, 0x61, 0x74, 0x69, 0x63, 0x6c, 0x61, 0x62, 0x73, 0x2f, 0x70, 0x72, 0x79,
+	0x73, 0x6d, 0x2f, 0x76, 0x34, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x70, 0x72, 0x79, 0x73,
+	0x6d, 0x2f, 0x76, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0x3b, 0x65, 0x74, 0x68, 0xaa, 0x02,
+	0x15, 0x45, 0x74, 0x68, 0x65, 0x72, 0x65, 0x75, 0x6d, 0x2e, 0x45, 0x74, 0x68, 0x2e, 0x76, 0x31,
+	0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0xca, 0x02, 0x15, 0x45, 0x74, 0x68, 0x65, 0x72, 0x65, 0x75,
+	0x6d, 0x5c, 0x45, 0x74, 0x68, 0x5c, 0x76, 0x31, 0x61, 0x6c, 0x70, 0x68, 0x61, 0x31, 0x62, 0x06,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -613,26 +365,21 @@ func file_proto_prysm_v1alpha1_blobs_proto_rawDescGZIP() []byte {
 	return file_proto_prysm_v1alpha1_blobs_proto_rawDescData
 }
 
-var file_proto_prysm_v1alpha1_blobs_proto_msgTypes = make([]protoimpl.MessageInfo, 7)
+var file_proto_prysm_v1alpha1_blobs_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
 var file_proto_prysm_v1alpha1_blobs_proto_goTypes = []interface{}{
-	(*DeprecatedBlobSidecars)(nil),   // 0: ethereum.eth.v1alpha1.DeprecatedBlobSidecars
-	(*DeprecatedBlobSidecar)(nil),    // 1: ethereum.eth.v1alpha1.DeprecatedBlobSidecar
-	(*SignedBlobSidecar)(nil),        // 2: ethereum.eth.v1alpha1.SignedBlobSidecar
-	(*BlindedBlobSidecars)(nil),      // 3: ethereum.eth.v1alpha1.BlindedBlobSidecars
-	(*BlindedBlobSidecar)(nil),       // 4: ethereum.eth.v1alpha1.BlindedBlobSidecar
-	(*SignedBlindedBlobSidecar)(nil), // 5: ethereum.eth.v1alpha1.SignedBlindedBlobSidecar
-	(*BlobIdentifier)(nil),           // 6: ethereum.eth.v1alpha1.BlobIdentifier
+	(*BlindedBlobSidecars)(nil),      // 0: ethereum.eth.v1alpha1.BlindedBlobSidecars
+	(*BlindedBlobSidecar)(nil),       // 1: ethereum.eth.v1alpha1.BlindedBlobSidecar
+	(*SignedBlindedBlobSidecar)(nil), // 2: ethereum.eth.v1alpha1.SignedBlindedBlobSidecar
+	(*BlobIdentifier)(nil),           // 3: ethereum.eth.v1alpha1.BlobIdentifier
 }
 var file_proto_prysm_v1alpha1_blobs_proto_depIdxs = []int32{
-	1, // 0: ethereum.eth.v1alpha1.DeprecatedBlobSidecars.sidecars:type_name -> ethereum.eth.v1alpha1.DeprecatedBlobSidecar
-	1, // 1: ethereum.eth.v1alpha1.SignedBlobSidecar.message:type_name -> ethereum.eth.v1alpha1.DeprecatedBlobSidecar
-	4, // 2: ethereum.eth.v1alpha1.BlindedBlobSidecars.sidecars:type_name -> ethereum.eth.v1alpha1.BlindedBlobSidecar
-	4, // 3: ethereum.eth.v1alpha1.SignedBlindedBlobSidecar.message:type_name -> ethereum.eth.v1alpha1.BlindedBlobSidecar
-	4, // [4:4] is the sub-list for method output_type
-	4, // [4:4] is the sub-list for method input_type
-	4, // [4:4] is the sub-list for extension type_name
-	4, // [4:4] is the sub-list for extension extendee
-	0, // [0:4] is the sub-list for field type_name
+	1, // 0: ethereum.eth.v1alpha1.BlindedBlobSidecars.sidecars:type_name -> ethereum.eth.v1alpha1.BlindedBlobSidecar
+	1, // 1: ethereum.eth.v1alpha1.SignedBlindedBlobSidecar.message:type_name -> ethereum.eth.v1alpha1.BlindedBlobSidecar
+	2, // [2:2] is the sub-list for method output_type
+	2, // [2:2] is the sub-list for method input_type
+	2, // [2:2] is the sub-list for extension type_name
+	2, // [2:2] is the sub-list for extension extendee
+	0, // [0:2] is the sub-list for field type_name
 }
 
 func init() { file_proto_prysm_v1alpha1_blobs_proto_init() }
@@ -642,42 +389,6 @@ func file_proto_prysm_v1alpha1_blobs_proto_init() {
 	}
 	if !protoimpl.UnsafeEnabled {
 		file_proto_prysm_v1alpha1_blobs_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DeprecatedBlobSidecars); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_proto_prysm_v1alpha1_blobs_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DeprecatedBlobSidecar); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_proto_prysm_v1alpha1_blobs_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*SignedBlobSidecar); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_proto_prysm_v1alpha1_blobs_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*BlindedBlobSidecars); i {
 			case 0:
 				return &v.state
@@ -689,7 +400,7 @@ func file_proto_prysm_v1alpha1_blobs_proto_init() {
 				return nil
 			}
 		}
-		file_proto_prysm_v1alpha1_blobs_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+		file_proto_prysm_v1alpha1_blobs_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*BlindedBlobSidecar); i {
 			case 0:
 				return &v.state
@@ -701,7 +412,7 @@ func file_proto_prysm_v1alpha1_blobs_proto_init() {
 				return nil
 			}
 		}
-		file_proto_prysm_v1alpha1_blobs_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+		file_proto_prysm_v1alpha1_blobs_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*SignedBlindedBlobSidecar); i {
 			case 0:
 				return &v.state
@@ -713,7 +424,7 @@ func file_proto_prysm_v1alpha1_blobs_proto_init() {
 				return nil
 			}
 		}
-		file_proto_prysm_v1alpha1_blobs_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+		file_proto_prysm_v1alpha1_blobs_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*BlobIdentifier); i {
 			case 0:
 				return &v.state
@@ -732,7 +443,7 @@ func file_proto_prysm_v1alpha1_blobs_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_proto_prysm_v1alpha1_blobs_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   7,
+			NumMessages:   4,
 			NumExtensions: 0,
 			NumServices:   0,
 		},
diff --git a/proto/prysm/v1alpha1/blobs.proto b/proto/prysm/v1alpha1/blobs.proto
index e198f636d..014dbd3b7 100644
--- a/proto/prysm/v1alpha1/blobs.proto
+++ b/proto/prysm/v1alpha1/blobs.proto
@@ -24,26 +24,6 @@ option java_outer_classname = "BlobsProto";
 option java_package = "org.ethereum.eth.v1alpha1";
 option php_namespace = "Ethereum\\Eth\\v1alpha1";
 
-message DeprecatedBlobSidecars {
-  repeated DeprecatedBlobSidecar sidecars = 1;
-}
-
-message DeprecatedBlobSidecar {
-  bytes block_root = 1 [(ethereum.eth.ext.ssz_size) = "32"];
-  uint64 index = 2;
-  uint64 slot = 3 [(ethereum.eth.ext.cast_type) = "github.com/prysmaticlabs/prysm/v4/consensus-types/primitives.Slot"];
-  bytes block_parent_root = 4 [(ethereum.eth.ext.ssz_size) = "32"];
-  uint64 proposer_index = 5 [(ethereum.eth.ext.cast_type) = "github.com/prysmaticlabs/prysm/v4/consensus-types/primitives.ValidatorIndex"];
-  bytes blob = 6 [(ethereum.eth.ext.ssz_size) = "blob.size"];
-  bytes kzg_commitment = 7 [(ethereum.eth.ext.ssz_size) = "48"];
-  bytes kzg_proof = 8 [(ethereum.eth.ext.ssz_size) = "48"];
-}
-
-message SignedBlobSidecar {
-  DeprecatedBlobSidecar message = 1;
-  bytes signature = 2 [(ethereum.eth.ext.ssz_size) = "96"];
-}
-
 message BlindedBlobSidecars {
   repeated BlindedBlobSidecar sidecars = 1 [(ethereum.eth.ext.ssz_max) = "max_blobs_per_block.size"];
 }
diff --git a/proto/prysm/v1alpha1/generated.ssz.go b/proto/prysm/v1alpha1/generated.ssz.go
index e29e48489..3f286e1c9 100644
--- a/proto/prysm/v1alpha1/generated.ssz.go
+++ b/proto/prysm/v1alpha1/generated.ssz.go
@@ -1,5 +1,5 @@
 // Code generated by fastssz. DO NOT EDIT.
-// Hash: 3f430aea0c076f79689535373e221ae26a7f8d581d9ab214f15d4fd3a761a82c
+// Hash: 28837d1c80ab7592d4877ebbd9881adf756b7da77c5614263c8442c2b3dea5c2
 package eth
 
 import (
@@ -15047,266 +15047,6 @@ func (h *HistoricalSummary) HashTreeRootWith(hh *ssz.Hasher) (err error) {
 	return
 }
 
-// MarshalSSZ ssz marshals the DeprecatedBlobSidecar object
-func (d *DeprecatedBlobSidecar) MarshalSSZ() ([]byte, error) {
-	return ssz.MarshalSSZ(d)
-}
-
-// MarshalSSZTo ssz marshals the DeprecatedBlobSidecar object to a target array
-func (d *DeprecatedBlobSidecar) MarshalSSZTo(buf []byte) (dst []byte, err error) {
-	dst = buf
-
-	// Field (0) 'BlockRoot'
-	if size := len(d.BlockRoot); size != 32 {
-		err = ssz.ErrBytesLengthFn("--.BlockRoot", size, 32)
-		return
-	}
-	dst = append(dst, d.BlockRoot...)
-
-	// Field (1) 'Index'
-	dst = ssz.MarshalUint64(dst, d.Index)
-
-	// Field (2) 'Slot'
-	dst = ssz.MarshalUint64(dst, uint64(d.Slot))
-
-	// Field (3) 'BlockParentRoot'
-	if size := len(d.BlockParentRoot); size != 32 {
-		err = ssz.ErrBytesLengthFn("--.BlockParentRoot", size, 32)
-		return
-	}
-	dst = append(dst, d.BlockParentRoot...)
-
-	// Field (4) 'ProposerIndex'
-	dst = ssz.MarshalUint64(dst, uint64(d.ProposerIndex))
-
-	// Field (5) 'Blob'
-	if size := len(d.Blob); size != 131072 {
-		err = ssz.ErrBytesLengthFn("--.Blob", size, 131072)
-		return
-	}
-	dst = append(dst, d.Blob...)
-
-	// Field (6) 'KzgCommitment'
-	if size := len(d.KzgCommitment); size != 48 {
-		err = ssz.ErrBytesLengthFn("--.KzgCommitment", size, 48)
-		return
-	}
-	dst = append(dst, d.KzgCommitment...)
-
-	// Field (7) 'KzgProof'
-	if size := len(d.KzgProof); size != 48 {
-		err = ssz.ErrBytesLengthFn("--.KzgProof", size, 48)
-		return
-	}
-	dst = append(dst, d.KzgProof...)
-
-	return
-}
-
-// UnmarshalSSZ ssz unmarshals the DeprecatedBlobSidecar object
-func (d *DeprecatedBlobSidecar) UnmarshalSSZ(buf []byte) error {
-	var err error
-	size := uint64(len(buf))
-	if size != 131256 {
-		return ssz.ErrSize
-	}
-
-	// Field (0) 'BlockRoot'
-	if cap(d.BlockRoot) == 0 {
-		d.BlockRoot = make([]byte, 0, len(buf[0:32]))
-	}
-	d.BlockRoot = append(d.BlockRoot, buf[0:32]...)
-
-	// Field (1) 'Index'
-	d.Index = ssz.UnmarshallUint64(buf[32:40])
-
-	// Field (2) 'Slot'
-	d.Slot = github_com_prysmaticlabs_prysm_v4_consensus_types_primitives.Slot(ssz.UnmarshallUint64(buf[40:48]))
-
-	// Field (3) 'BlockParentRoot'
-	if cap(d.BlockParentRoot) == 0 {
-		d.BlockParentRoot = make([]byte, 0, len(buf[48:80]))
-	}
-	d.BlockParentRoot = append(d.BlockParentRoot, buf[48:80]...)
-
-	// Field (4) 'ProposerIndex'
-	d.ProposerIndex = github_com_prysmaticlabs_prysm_v4_consensus_types_primitives.ValidatorIndex(ssz.UnmarshallUint64(buf[80:88]))
-
-	// Field (5) 'Blob'
-	if cap(d.Blob) == 0 {
-		d.Blob = make([]byte, 0, len(buf[88:131160]))
-	}
-	d.Blob = append(d.Blob, buf[88:131160]...)
-
-	// Field (6) 'KzgCommitment'
-	if cap(d.KzgCommitment) == 0 {
-		d.KzgCommitment = make([]byte, 0, len(buf[131160:131208]))
-	}
-	d.KzgCommitment = append(d.KzgCommitment, buf[131160:131208]...)
-
-	// Field (7) 'KzgProof'
-	if cap(d.KzgProof) == 0 {
-		d.KzgProof = make([]byte, 0, len(buf[131208:131256]))
-	}
-	d.KzgProof = append(d.KzgProof, buf[131208:131256]...)
-
-	return err
-}
-
-// SizeSSZ returns the ssz encoded size in bytes for the DeprecatedBlobSidecar object
-func (d *DeprecatedBlobSidecar) SizeSSZ() (size int) {
-	size = 131256
-	return
-}
-
-// HashTreeRoot ssz hashes the DeprecatedBlobSidecar object
-func (d *DeprecatedBlobSidecar) HashTreeRoot() ([32]byte, error) {
-	return ssz.HashWithDefaultHasher(d)
-}
-
-// HashTreeRootWith ssz hashes the DeprecatedBlobSidecar object with a hasher
-func (d *DeprecatedBlobSidecar) HashTreeRootWith(hh *ssz.Hasher) (err error) {
-	indx := hh.Index()
-
-	// Field (0) 'BlockRoot'
-	if size := len(d.BlockRoot); size != 32 {
-		err = ssz.ErrBytesLengthFn("--.BlockRoot", size, 32)
-		return
-	}
-	hh.PutBytes(d.BlockRoot)
-
-	// Field (1) 'Index'
-	hh.PutUint64(d.Index)
-
-	// Field (2) 'Slot'
-	hh.PutUint64(uint64(d.Slot))
-
-	// Field (3) 'BlockParentRoot'
-	if size := len(d.BlockParentRoot); size != 32 {
-		err = ssz.ErrBytesLengthFn("--.BlockParentRoot", size, 32)
-		return
-	}
-	hh.PutBytes(d.BlockParentRoot)
-
-	// Field (4) 'ProposerIndex'
-	hh.PutUint64(uint64(d.ProposerIndex))
-
-	// Field (5) 'Blob'
-	if size := len(d.Blob); size != 131072 {
-		err = ssz.ErrBytesLengthFn("--.Blob", size, 131072)
-		return
-	}
-	hh.PutBytes(d.Blob)
-
-	// Field (6) 'KzgCommitment'
-	if size := len(d.KzgCommitment); size != 48 {
-		err = ssz.ErrBytesLengthFn("--.KzgCommitment", size, 48)
-		return
-	}
-	hh.PutBytes(d.KzgCommitment)
-
-	// Field (7) 'KzgProof'
-	if size := len(d.KzgProof); size != 48 {
-		err = ssz.ErrBytesLengthFn("--.KzgProof", size, 48)
-		return
-	}
-	hh.PutBytes(d.KzgProof)
-
-	if ssz.EnableVectorizedHTR {
-		hh.MerkleizeVectorizedHTR(indx)
-	} else {
-		hh.Merkleize(indx)
-	}
-	return
-}
-
-// MarshalSSZ ssz marshals the SignedBlobSidecar object
-func (s *SignedBlobSidecar) MarshalSSZ() ([]byte, error) {
-	return ssz.MarshalSSZ(s)
-}
-
-// MarshalSSZTo ssz marshals the SignedBlobSidecar object to a target array
-func (s *SignedBlobSidecar) MarshalSSZTo(buf []byte) (dst []byte, err error) {
-	dst = buf
-
-	// Field (0) 'Message'
-	if s.Message == nil {
-		s.Message = new(DeprecatedBlobSidecar)
-	}
-	if dst, err = s.Message.MarshalSSZTo(dst); err != nil {
-		return
-	}
-
-	// Field (1) 'Signature'
-	if size := len(s.Signature); size != 96 {
-		err = ssz.ErrBytesLengthFn("--.Signature", size, 96)
-		return
-	}
-	dst = append(dst, s.Signature...)
-
-	return
-}
-
-// UnmarshalSSZ ssz unmarshals the SignedBlobSidecar object
-func (s *SignedBlobSidecar) UnmarshalSSZ(buf []byte) error {
-	var err error
-	size := uint64(len(buf))
-	if size != 131352 {
-		return ssz.ErrSize
-	}
-
-	// Field (0) 'Message'
-	if s.Message == nil {
-		s.Message = new(DeprecatedBlobSidecar)
-	}
-	if err = s.Message.UnmarshalSSZ(buf[0:131256]); err != nil {
-		return err
-	}
-
-	// Field (1) 'Signature'
-	if cap(s.Signature) == 0 {
-		s.Signature = make([]byte, 0, len(buf[131256:131352]))
-	}
-	s.Signature = append(s.Signature, buf[131256:131352]...)
-
-	return err
-}
-
-// SizeSSZ returns the ssz encoded size in bytes for the SignedBlobSidecar object
-func (s *SignedBlobSidecar) SizeSSZ() (size int) {
-	size = 131352
-	return
-}
-
-// HashTreeRoot ssz hashes the SignedBlobSidecar object
-func (s *SignedBlobSidecar) HashTreeRoot() ([32]byte, error) {
-	return ssz.HashWithDefaultHasher(s)
-}
-
-// HashTreeRootWith ssz hashes the SignedBlobSidecar object with a hasher
-func (s *SignedBlobSidecar) HashTreeRootWith(hh *ssz.Hasher) (err error) {
-	indx := hh.Index()
-
-	// Field (0) 'Message'
-	if err = s.Message.HashTreeRootWith(hh); err != nil {
-		return
-	}
-
-	// Field (1) 'Signature'
-	if size := len(s.Signature); size != 96 {
-		err = ssz.ErrBytesLengthFn("--.Signature", size, 96)
-		return
-	}
-	hh.PutBytes(s.Signature)
-
-	if ssz.EnableVectorizedHTR {
-		hh.MerkleizeVectorizedHTR(indx)
-	} else {
-		hh.Merkleize(indx)
-	}
-	return
-}
-
 // MarshalSSZ ssz marshals the BlobIdentifier object
 func (b *BlobIdentifier) MarshalSSZ() ([]byte, error) {
 	return ssz.MarshalSSZ(b)
diff --git a/testing/spectest/general/deneb/kzg/BUILD.bazel b/testing/spectest/general/deneb/kzg/BUILD.bazel
index b513dd394..90b3f91dd 100644
--- a/testing/spectest/general/deneb/kzg/BUILD.bazel
+++ b/testing/spectest/general/deneb/kzg/BUILD.bazel
@@ -10,6 +10,7 @@ go_test(
     tags = ["spectest"],
     deps = [
         "//beacon-chain/blockchain/kzg:go_default_library",
+        "//consensus-types/blocks:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//testing/require:go_default_library",
         "//testing/spectest/utils:go_default_library",
diff --git a/testing/spectest/general/deneb/kzg/verify_blob_kzg_proof_batch_test.go b/testing/spectest/general/deneb/kzg/verify_blob_kzg_proof_batch_test.go
index 938768da6..2c9b5283b 100644
--- a/testing/spectest/general/deneb/kzg/verify_blob_kzg_proof_batch_test.go
+++ b/testing/spectest/general/deneb/kzg/verify_blob_kzg_proof_batch_test.go
@@ -7,6 +7,7 @@ import (
 
 	"github.com/ghodss/yaml"
 	kzgPrysm "github.com/prysmaticlabs/prysm/v4/beacon-chain/blockchain/kzg"
+	"github.com/prysmaticlabs/prysm/v4/consensus-types/blocks"
 	ethpb "github.com/prysmaticlabs/prysm/v4/proto/prysm/v1alpha1"
 	"github.com/prysmaticlabs/prysm/v4/testing/require"
 	"github.com/prysmaticlabs/prysm/v4/testing/spectest/utils"
@@ -36,37 +37,40 @@ func TestVerifyBlobKZGProofBatch(t *testing.T) {
 			require.NoError(t, err)
 			test := &KZGTestData{}
 			require.NoError(t, yaml.Unmarshal(file, test))
-			var sidecars []*ethpb.DeprecatedBlobSidecar
+			var sidecars []blocks.ROBlob
 			blobs := test.Input.Blobs
-			commitments := test.Input.Commitments
 			proofs := test.Input.Proofs
+			kzgs := test.Input.Commitments
 			if len(proofs) != len(blobs) {
 				require.Equal(t, false, test.Output)
 				return
 			}
-			var kzgs [][]byte
-			// Need separate loops to test length checks in
-			// `IsDataAvailable`
+			if len(kzgs) != len(blobs) {
+				require.Equal(t, false, test.Output)
+				return
+			}
+
 			for i, blob := range blobs {
 				blobBytes, err := hex.DecodeString(blob[2:])
 				require.NoError(t, err)
 				proofBytes, err := hex.DecodeString(proofs[i][2:])
 				require.NoError(t, err)
-				sidecar := &ethpb.DeprecatedBlobSidecar{
-					Blob:     blobBytes,
-					KzgProof: proofBytes,
-				}
-				sidecars = append(sidecars, sidecar)
-			}
-			for _, commitment := range commitments {
-				commitmentBytes, err := hex.DecodeString(commitment[2:])
+				kzgBytes, err := hex.DecodeString(kzgs[i][2:])
 				require.NoError(t, err)
-				kzgs = append(kzgs, commitmentBytes)
+				sidecar := &ethpb.BlobSidecar{
+					Blob:          blobBytes,
+					KzgProof:      proofBytes,
+					KzgCommitment: kzgBytes,
+				}
+				sidecar.SignedBlockHeader = util.HydrateSignedBeaconHeader(&ethpb.SignedBeaconBlockHeader{})
+				sc, err := blocks.NewROBlob(sidecar)
+				require.NoError(t, err)
+				sidecars = append(sidecars, sc)
 			}
 			if test.Output {
-				require.NoError(t, kzgPrysm.IsDataAvailable(kzgs, sidecars))
+				require.NoError(t, kzgPrysm.Verify(sidecars...))
 			} else {
-				require.NotNil(t, kzgPrysm.IsDataAvailable(kzgs, sidecars))
+				require.NotNil(t, kzgPrysm.Verify(sidecars...))
 			}
 		})
 	}
diff --git a/testing/spectest/shared/deneb/ssz_static/ssz_static.go b/testing/spectest/shared/deneb/ssz_static/ssz_static.go
index 91a0000f9..0a30b7983 100644
--- a/testing/spectest/shared/deneb/ssz_static/ssz_static.go
+++ b/testing/spectest/shared/deneb/ssz_static/ssz_static.go
@@ -131,8 +131,6 @@ func UnmarshalledSSZ(t *testing.T, serializedBytes []byte, folderName string) (i
 		obj = &ethpb.BlobIdentifier{}
 	case "BlobSidecar":
 		obj = &ethpb.BlobSidecar{}
-	case "SignedBlobSidecar":
-		obj = &ethpb.SignedBlobSidecar{}
 	case "PowBlock":
 		obj = &ethpb.PowBlock{}
 	case "Withdrawal":