diff --git a/.gitmodules b/.gitmodules
index 81aceec..6c65ba1 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "beacon-apis"]
 	path = beacon-apis
-	url = git@github.com:ethereum/beacon-APIs.git
+	url = https://github.com/ethereum/beacon-apis
diff --git a/apis/builder/blinded_blocks.yaml b/apis/builder/blinded_blocks.yaml
index d355353..1ab2779 100644
--- a/apis/builder/blinded_blocks.yaml
+++ b/apis/builder/blinded_blocks.yaml
@@ -10,8 +10,7 @@ post:
     must return an error response (400) with a description of the validation
     failure.
 
-    After Deneb, this endpoint will additionally accept `SignedBlindedBlobSidecars`, and return
-    with additional unblinded blobs in response.
+    After Deneb, this endpoint will additionally return the associated blobs in the response.
   tags:
     - Builder
   parameters:
@@ -22,7 +21,7 @@ post:
       name: Eth-Consensus-Version
       description: "Version of the block being submitted"
   requestBody:
-    description: A `SignedBlindedBeaconBlock` before Deneb, or `SignedBlindedBlockContents` after Deneb.
+    description: A `SignedBlindedBeaconBlock`.
     required: true
     content:
       application/json:
@@ -30,14 +29,14 @@ post:
           oneOf:
             - $ref: "../../builder-oapi.yaml#/components/schemas/Bellatrix.SignedBlindedBeaconBlock"
             - $ref: "../../builder-oapi.yaml#/components/schemas/Capella.SignedBlindedBeaconBlock"
-            - $ref: "../../builder-oapi.yaml#/components/schemas/Deneb.SignedBlindedBlockContents"
+            - $ref: "../../builder-oapi.yaml#/components/schemas/Deneb.SignedBlindedBeaconBlock"
         examples:
           bellatrix:
             $ref: "../../builder-oapi.yaml#/components/examples/Bellatrix.SignedBlindedBeaconBlock"
           capella:
             $ref: "../../builder-oapi.yaml#/components/examples/Capella.SignedBlindedBeaconBlock"
           deneb:
-            $ref: "../../builder-oapi.yaml#/components/examples/Deneb.SignedBlindedBlockContents"
+            $ref: "../../builder-oapi.yaml#/components/examples/Deneb.SignedBlindedBeaconBlock"
 
   responses:
     "200":
diff --git a/apis/builder/header.yaml b/apis/builder/header.yaml
index 1fd0c42..2411dc8 100644
--- a/apis/builder/header.yaml
+++ b/apis/builder/header.yaml
@@ -9,6 +9,8 @@ get:
     the builder MUST return a 204 response. If the request is invalid, then the
     builder MUST return an error response (400) with a description of the
     validation failure.
+
+    After Deneb, return the KZG commitments for any associated blobs attached to the execution payload.
   tags:
     - Builder
   parameters:
diff --git a/beacon-apis b/beacon-apis
index ea56687..197ecff 160000
--- a/beacon-apis
+++ b/beacon-apis
@@ -1 +1 @@
-Subproject commit ea5668708f2c6717fd2934c9a0b82b6705818a2e
+Subproject commit 197ecffae2b813d94797184ae50387589c601fe7
diff --git a/builder-oapi.yaml b/builder-oapi.yaml
index af72fc3..21d46e3 100644
--- a/builder-oapi.yaml
+++ b/builder-oapi.yaml
@@ -69,8 +69,8 @@ components:
       $ref: "./beacon-apis/types/capella/block.yaml#/Capella/SignedBlindedBeaconBlock"
     Capella.SignedBuilderBid:
       $ref: "./types/capella/bid.yaml#/Capella/SignedBuilderBid"
-    Deneb.SignedBlindedBlockContents:
-      $ref: "./beacon-apis/types/deneb/block_contents.yaml#/Deneb/SignedBlindedBlockContents"
+    Deneb.SignedBlindedBeaconBlock:
+      $ref: "./beacon-apis/types/deneb/block.yaml#/Deneb/SignedBlindedBeaconBlock"
     Deneb.SignedBuilderBid:
       $ref: "./types/deneb/bid.yaml#/Deneb/SignedBuilderBid"
     Deneb.ExecutionPayloadAndBlobsBundle:
@@ -95,10 +95,9 @@ components:
       $ref: "./examples/capella/execution_payload.json"
     Capella.SignedBuilderBid:
       $ref: "./examples/capella/signed_builder_bid.json"
-    Deneb.SignedBlindedBlockContents:
-      $ref: "./examples/deneb/signed_blinded_block_contents.json"
+    Deneb.SignedBlindedBeaconBlock:
+      $ref: "./examples/deneb/signed_blinded_beacon_block.json"
     Deneb.ExecutionPayloadAndBlobsBundle:
       $ref: "./examples/deneb/execution_payload_and_blobs_bundle.json"
     Deneb.SignedBuilderBid:
       $ref: "./examples/deneb/signed_builder_bid.json"
-
diff --git a/examples/deneb/execution_payload_and_blobs_bundle.json b/examples/deneb/execution_payload_and_blobs_bundle.json
index 095bab6..d3ab864 100644
--- a/examples/deneb/execution_payload_and_blobs_bundle.json
+++ b/examples/deneb/execution_payload_and_blobs_bundle.json
@@ -15,7 +15,7 @@
         "timestamp": "1",
         "extra_data": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
         "base_fee_per_gas": "1",
-        "blob_gas_used" : "1",
+        "blob_gas_used": "1",
         "excess_blob_gas": "1",
         "block_hash": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
         "transactions": [
@@ -31,10 +31,16 @@
         ]
       },
       "blobs_bundle": {
-        "commitments": ["0x8dab030c51e16e84be9caab84ee3d0b8bbec1db4a0e4de76439da8424d9b957370a10a78851f97e4b54d2ce1ab0d686f"],
-        "proofs": ["0xb4021b0de10f743893d4f71e1bf830c019e832958efd6795baf2f83b8699a9eccc5dc99015d8d4d8ec370d0cc333c06a"],
-        "blobs": ["0x24564723180fcb3d994104538d351c8dcbde12d541676bb736cf678018ca4739"]
+        "commitments": [
+          "0x8dab030c51e16e84be9caab84ee3d0b8bbec1db4a0e4de76439da8424d9b957370a10a78851f97e4b54d2ce1ab0d686f"
+        ],
+        "proofs": [
+          "0xb4021b0de10f743893d4f71e1bf830c019e832958efd6795baf2f83b8699a9eccc5dc99015d8d4d8ec370d0cc333c06a"
+        ],
+        "blobs": [
+          "0x24564723180fcb3d994104538d351c8dcbde12d541676bb736cf678018ca4739"
+        ]
       }
     }
   }
-}
\ No newline at end of file
+}
diff --git a/examples/deneb/signed_blinded_beacon_block.json b/examples/deneb/signed_blinded_beacon_block.json
new file mode 100644
index 0000000..8a68a96
--- /dev/null
+++ b/examples/deneb/signed_blinded_beacon_block.json
@@ -0,0 +1,195 @@
+{
+  "value": {
+    "message": {
+      "slot": "1",
+      "proposer_index": "1",
+      "parent_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+      "state_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+      "body": {
+        "randao_reveal": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505",
+        "eth1_data": {
+          "deposit_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+          "deposit_count": "1",
+          "block_hash": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
+        },
+        "graffiti": "0xdeadbeefc0ffeedeadbeefc0ffeedeadbeefc0ffeedeadbeefc0ffeedeadbeef",
+        "proposer_slashings": [
+          {
+            "signed_header_1": {
+              "message": {
+                "slot": "1",
+                "proposer_index": "1",
+                "parent_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+                "state_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+                "body_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
+              },
+              "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
+            },
+            "signed_header_2": {
+              "message": {
+                "slot": "1",
+                "proposer_index": "1",
+                "parent_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+                "state_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+                "body_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
+              },
+              "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
+            }
+          }
+        ],
+        "attester_slashings": [
+          {
+            "attestation_1": {
+              "attesting_indices": [
+                "1"
+              ],
+              "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505",
+              "data": {
+                "slot": "1",
+                "index": "1",
+                "beacon_block_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+                "source": {
+                  "epoch": "1",
+                  "root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
+                },
+                "target": {
+                  "epoch": "1",
+                  "root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
+                }
+              }
+            },
+            "attestation_2": {
+              "attesting_indices": [
+                "1"
+              ],
+              "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505",
+              "data": {
+                "slot": "1",
+                "index": "1",
+                "beacon_block_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+                "source": {
+                  "epoch": "1",
+                  "root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
+                },
+                "target": {
+                  "epoch": "1",
+                  "root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
+                }
+              }
+            }
+          }
+        ],
+        "attestations": [
+          {
+            "aggregation_bits": "0x01",
+            "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505",
+            "data": {
+              "slot": "1",
+              "index": "1",
+              "beacon_block_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+              "source": {
+                "epoch": "1",
+                "root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
+              },
+              "target": {
+                "epoch": "1",
+                "root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
+              }
+            }
+          }
+        ],
+        "deposits": [
+          {
+            "proof": [
+              "0xeeffb6c21a01d3abf09cd6c56e5d48f5ea0fc3bb0de906e3beea3e73776329cb",
+              "0x601c3b24a99d023224d50811bed19449890febb719a31d09ac414c4632f3c0ba",
+              "0xbb5e485e0a366e16510de33731d71204ad2fe0f7c600861fc2ac4685212c34e3",
+              "0x0006964745296a3e6ebf3954a1541e73205f1eefaddfc48ca9dc856bf159bca2",
+              "0x2c6020f1f9712b89f59550aec05b7c23cb1b113762399c0ca5b8fdd2fa85ce57",
+              "0x1c15634783e1d9d2cb969da66fd72cafca5026191d911b83211318d183c5ea59",
+              "0xdfbdf99a1fde57899df1545be1f91bc8a8a9f46c4bac619e28e92aff276de41f",
+              "0xfe9b0f0c05fde6bd26ce63d394058844ad4451f70b6d2547f49c5c2a5c7891a1",
+              "0x165f84ee467d18dbafdb07275dc42fb988ab696b0a7ad94c52f4d7a27144b994",
+              "0x506d86582d252405b840018792cad2bf1259f1ef5aa5f887e13cb2f0094f51e1",
+              "0xecdbe5e5056b968aa726a08f1aa33f5d41540eed42f59ace020431cf38a5144e",
+              "0xc4498c5eb1feeb0b225a3f332bdf523dbc013a5b336a851fce1c055b4019a457",
+              "0xb7d05f875f140027ef5118a2247bbb84ce8f2f0f1123623085daf7960c329f5f",
+              "0x8a9b66ad79116c9fc6eed14bde76e8f486669e59b0b5bb0c60a6b3caea38b83d",
+              "0x267c5455e4806b5d0ad5573552d0162e0983595bac25dacd9078174a2766643a",
+              "0x27e0c6357985de4d6026d6da14f31e8bfe14524056fec69dc06d6f8a239344af",
+              "0xf8455aebc24849bea870fbcef1235e2d27c8fd27db24e26d30d0173f3b207874",
+              "0xaba01bf7fe57be4373f47ff8ea6adc4348fab087b69b2518ce630820f95f4150",
+              "0xd47152335d9460f2b6fb7aba05ced32a52e9f46659ccd3daa2059661d75a6308",
+              "0xf893e908917775b62bff23294dbbe3a1cd8e6cc1c35b4801887b646a6f81f17f",
+              "0xcddba7b592e3133393c16194fac7431abf2f5485ed711db282183c819e08ebaa",
+              "0x8a8d7fe3af8caa085a7639a832001457dfb9128a8061142ad0335629ff23ff9c",
+              "0xfeb3c337d7a51a6fbf00b9e34c52e1c9195c969bd4e7a0bfd51d5c5bed9c1167",
+              "0xe71f0aa83cc32edfbefa9f4d3e0174ca85182eec9f3a09f6a6c0df6377a510d7",
+              "0x31206fa80a50bb6abe29085058f16212212a60eec8f049fecb92d8c8e0a84bc0",
+              "0x21352bfecbeddde993839f614c3dac0a3ee37543f9b412b16199dc158e23b544",
+              "0x619e312724bb6d7c3153ed9de791d764a366b389af13c58bf8a8d90481a46765",
+              "0x7cdd2986268250628d0c10e385c58c6191e6fbe05191bcc04f133f2cea72c1c4",
+              "0x848930bd7ba8cac54661072113fb278869e07bb8587f91392933374d017bcbe1",
+              "0x8869ff2c22b28cc10510d9853292803328be4fb0e80495e8bb8d271f5b889636",
+              "0xb5fe28e79f1b850f8658246ce9b6a1e7b49fc06db7143e8fe0b4f2b0c5523a5c",
+              "0x985e929f70af28d0bdd1a90a808f977f597c7c778c489e98d3bd8910d31ac0f7",
+              "0xf7ed070000000000000000000000000000000000000000000000000000000000"
+            ],
+            "data": {
+              "pubkey": "0x93247f2209abcacf57b75a51dafae777f9dd38bc7053d1af526f220a7489a6d3a2753e5f3e8b1cfe39b56f43611df74a",
+              "withdrawal_credentials": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+              "amount": "1",
+              "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
+            }
+          }
+        ],
+        "voluntary_exits": [
+          {
+            "message": {
+              "epoch": "1",
+              "validator_index": "1"
+            },
+            "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
+          }
+        ],
+        "sync_aggregate": {
+          "sync_committee_bits": "0x01",
+          "sync_committee_signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
+        },
+        "execution_payload_header": {
+          "parent_hash": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+          "fee_recipient": "0xabcf8e0d4e9587369b2301d0790347320302cc09",
+          "state_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+          "receipts_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+          "logs_bloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
+          "prev_randao": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+          "block_number": "1",
+          "gas_limit": "1",
+          "gas_used": "1",
+          "timestamp": "1",
+          "extra_data": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+          "base_fee_per_gas": "1",
+          "blob_gas_used": "1",
+          "excess_blob_gas": "1",
+          "block_hash": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+          "transactions_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
+          "withdrawals_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
+        },
+        "bls_to_execution_changes": [
+          {
+            "message": {
+              "validator_index": "1",
+              "from_bls_pubkey": "0x93247f2209abcacf57b75a51dafae777f9dd38bc7053d1af526f220a7489a6d3a2753e5f3e8b1cfe39b56f43611df74a",
+              "to_execution_address": "0xabcf8e0d4e9587369b2301d0790347320302cc09"
+            },
+            "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
+          }
+        ],
+        "blob_kzg_commitments": [
+          "0xa94170080872584e54a1cf092d845703b13907f2e6b3b1c0ad573b910530499e3bcd48c6378846b80d2bfa58c81cf3d5"
+        ]
+      }
+    },
+    "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
+  }
+}
diff --git a/examples/deneb/signed_blinded_block_contents.json b/examples/deneb/signed_blinded_block_contents.json
deleted file mode 100644
index cefbd04..0000000
--- a/examples/deneb/signed_blinded_block_contents.json
+++ /dev/null
@@ -1,212 +0,0 @@
-{
-  "value": {
-    "signed_blinded_block": {
-      "message": {
-        "slot": "1",
-        "proposer_index": "1",
-        "parent_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-        "state_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-        "body": {
-          "randao_reveal": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505",
-          "eth1_data": {
-            "deposit_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-            "deposit_count": "1",
-            "block_hash": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
-          },
-          "graffiti": "0xdeadbeefc0ffeedeadbeefc0ffeedeadbeefc0ffeedeadbeefc0ffeedeadbeef",
-          "proposer_slashings": [
-            {
-              "signed_header_1": {
-                "message": {
-                  "slot": "1",
-                  "proposer_index": "1",
-                  "parent_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-                  "state_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-                  "body_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
-                },
-                "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
-              },
-              "signed_header_2": {
-                "message": {
-                  "slot": "1",
-                  "proposer_index": "1",
-                  "parent_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-                  "state_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-                  "body_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
-                },
-                "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
-              }
-            }
-          ],
-          "attester_slashings": [
-            {
-              "attestation_1": {
-                "attesting_indices": [
-                  "1"
-                ],
-                "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505",
-                "data": {
-                  "slot": "1",
-                  "index": "1",
-                  "beacon_block_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-                  "source": {
-                    "epoch": "1",
-                    "root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
-                  },
-                  "target": {
-                    "epoch": "1",
-                    "root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
-                  }
-                }
-              },
-              "attestation_2": {
-                "attesting_indices": [
-                  "1"
-                ],
-                "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505",
-                "data": {
-                  "slot": "1",
-                  "index": "1",
-                  "beacon_block_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-                  "source": {
-                    "epoch": "1",
-                    "root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
-                  },
-                  "target": {
-                    "epoch": "1",
-                    "root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
-                  }
-                }
-              }
-            }
-          ],
-          "attestations": [
-            {
-              "aggregation_bits": "0x01",
-              "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505",
-              "data": {
-                "slot": "1",
-                "index": "1",
-                "beacon_block_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-                "source": {
-                  "epoch": "1",
-                  "root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
-                },
-                "target": {
-                  "epoch": "1",
-                  "root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
-                }
-              }
-            }
-          ],
-          "deposits": [
-            {
-              "proof": [
-                "0xeeffb6c21a01d3abf09cd6c56e5d48f5ea0fc3bb0de906e3beea3e73776329cb",
-                "0x601c3b24a99d023224d50811bed19449890febb719a31d09ac414c4632f3c0ba",
-                "0xbb5e485e0a366e16510de33731d71204ad2fe0f7c600861fc2ac4685212c34e3",
-                "0x0006964745296a3e6ebf3954a1541e73205f1eefaddfc48ca9dc856bf159bca2",
-                "0x2c6020f1f9712b89f59550aec05b7c23cb1b113762399c0ca5b8fdd2fa85ce57",
-                "0x1c15634783e1d9d2cb969da66fd72cafca5026191d911b83211318d183c5ea59",
-                "0xdfbdf99a1fde57899df1545be1f91bc8a8a9f46c4bac619e28e92aff276de41f",
-                "0xfe9b0f0c05fde6bd26ce63d394058844ad4451f70b6d2547f49c5c2a5c7891a1",
-                "0x165f84ee467d18dbafdb07275dc42fb988ab696b0a7ad94c52f4d7a27144b994",
-                "0x506d86582d252405b840018792cad2bf1259f1ef5aa5f887e13cb2f0094f51e1",
-                "0xecdbe5e5056b968aa726a08f1aa33f5d41540eed42f59ace020431cf38a5144e",
-                "0xc4498c5eb1feeb0b225a3f332bdf523dbc013a5b336a851fce1c055b4019a457",
-                "0xb7d05f875f140027ef5118a2247bbb84ce8f2f0f1123623085daf7960c329f5f",
-                "0x8a9b66ad79116c9fc6eed14bde76e8f486669e59b0b5bb0c60a6b3caea38b83d",
-                "0x267c5455e4806b5d0ad5573552d0162e0983595bac25dacd9078174a2766643a",
-                "0x27e0c6357985de4d6026d6da14f31e8bfe14524056fec69dc06d6f8a239344af",
-                "0xf8455aebc24849bea870fbcef1235e2d27c8fd27db24e26d30d0173f3b207874",
-                "0xaba01bf7fe57be4373f47ff8ea6adc4348fab087b69b2518ce630820f95f4150",
-                "0xd47152335d9460f2b6fb7aba05ced32a52e9f46659ccd3daa2059661d75a6308",
-                "0xf893e908917775b62bff23294dbbe3a1cd8e6cc1c35b4801887b646a6f81f17f",
-                "0xcddba7b592e3133393c16194fac7431abf2f5485ed711db282183c819e08ebaa",
-                "0x8a8d7fe3af8caa085a7639a832001457dfb9128a8061142ad0335629ff23ff9c",
-                "0xfeb3c337d7a51a6fbf00b9e34c52e1c9195c969bd4e7a0bfd51d5c5bed9c1167",
-                "0xe71f0aa83cc32edfbefa9f4d3e0174ca85182eec9f3a09f6a6c0df6377a510d7",
-                "0x31206fa80a50bb6abe29085058f16212212a60eec8f049fecb92d8c8e0a84bc0",
-                "0x21352bfecbeddde993839f614c3dac0a3ee37543f9b412b16199dc158e23b544",
-                "0x619e312724bb6d7c3153ed9de791d764a366b389af13c58bf8a8d90481a46765",
-                "0x7cdd2986268250628d0c10e385c58c6191e6fbe05191bcc04f133f2cea72c1c4",
-                "0x848930bd7ba8cac54661072113fb278869e07bb8587f91392933374d017bcbe1",
-                "0x8869ff2c22b28cc10510d9853292803328be4fb0e80495e8bb8d271f5b889636",
-                "0xb5fe28e79f1b850f8658246ce9b6a1e7b49fc06db7143e8fe0b4f2b0c5523a5c",
-                "0x985e929f70af28d0bdd1a90a808f977f597c7c778c489e98d3bd8910d31ac0f7",
-                "0xf7ed070000000000000000000000000000000000000000000000000000000000"
-              ],
-              "data": {
-                "pubkey": "0x93247f2209abcacf57b75a51dafae777f9dd38bc7053d1af526f220a7489a6d3a2753e5f3e8b1cfe39b56f43611df74a",
-                "withdrawal_credentials": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-                "amount": "1",
-                "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
-              }
-            }
-          ],
-          "voluntary_exits": [
-            {
-              "message": {
-                "epoch": "1",
-                "validator_index": "1"
-              },
-              "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
-            }
-          ],
-          "sync_aggregate": {
-            "sync_committee_bits": "0x01",
-            "sync_committee_signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
-          },
-          "execution_payload_header": {
-            "parent_hash": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-            "fee_recipient": "0xabcf8e0d4e9587369b2301d0790347320302cc09",
-            "state_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-            "receipts_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-            "logs_bloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
-            "prev_randao": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-            "block_number": "1",
-            "gas_limit": "1",
-            "gas_used": "1",
-            "timestamp": "1",
-            "extra_data": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-            "base_fee_per_gas": "1",
-            "blob_gas_used" : "1",
-            "excess_blob_gas": "1",
-            "block_hash": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-            "transactions_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-            "withdrawals_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
-          },
-          "bls_to_execution_changes": [
-            {
-              "message": {
-                "validator_index": "1",
-                "from_bls_pubkey": "0x93247f2209abcacf57b75a51dafae777f9dd38bc7053d1af526f220a7489a6d3a2753e5f3e8b1cfe39b56f43611df74a",
-                "to_execution_address": "0xabcf8e0d4e9587369b2301d0790347320302cc09"
-              },
-              "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
-            }
-          ],
-          "blob_kzg_commitments": [
-            "0xa94170080872584e54a1cf092d845703b13907f2e6b3b1c0ad573b910530499e3bcd48c6378846b80d2bfa58c81cf3d5"
-          ]
-        }
-      },
-      "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
-    },
-    "signed_blinded_blob_sidecars": [
-      {
-        "message": {
-          "block_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-          "index": "0",
-          "slot": "1",
-          "block_parent_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
-          "proposer_index": "1",
-          "blob_root": "0x24564723180fcb3d994104538d351c8dcbde12d541676bb736cf678018ca4739",
-          "kzg_commitment": "0x8dab030c51e16e84be9caab84ee3d0b8bbec1db4a0e4de76439da8424d9b957370a10a78851f97e4b54d2ce1ab0d686f",
-          "kzg_proof": "0xb4021b0de10f743893d4f71e1bf830c019e832958efd6795baf2f83b8699a9eccc5dc99015d8d4d8ec370d0cc333c06a"
-        },
-        "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
-      }
-    ]
-  }
-}
\ No newline at end of file
diff --git a/examples/deneb/signed_builder_bid.json b/examples/deneb/signed_builder_bid.json
index 3675e5e..7bb7957 100644
--- a/examples/deneb/signed_builder_bid.json
+++ b/examples/deneb/signed_builder_bid.json
@@ -16,21 +16,19 @@
           "timestamp": "1",
           "extra_data": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
           "base_fee_per_gas": "1",
-          "blob_gas_used" : "1",
+          "blob_gas_used": "1",
           "excess_blob_gas": "1",
           "block_hash": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
           "transactions_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
           "withdrawals_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
         },
-        "blinded_blobs_bundle": {
-          "commitments": ["0x8dab030c51e16e84be9caab84ee3d0b8bbec1db4a0e4de76439da8424d9b957370a10a78851f97e4b54d2ce1ab0d686f"],
-          "proofs": ["0xb4021b0de10f743893d4f71e1bf830c019e832958efd6795baf2f83b8699a9eccc5dc99015d8d4d8ec370d0cc333c06a"],
-          "blob_roots": ["0x24564723180fcb3d994104538d351c8dcbde12d541676bb736cf678018ca4739"]
-        },
+        "blob_kzg_commitments": [
+          "0xa94170080872584e54a1cf092d845703b13907f2e6b3b1c0ad573b910530499e3bcd48c6378846b80d2bfa58c81cf3d5"
+        ],
         "value": "1",
         "pubkey": "0x93247f2209abcacf57b75a51dafae777f9dd38bc7053d1af526f220a7489a6d3a2753e5f3e8b1cfe39b56f43611df74a"
       },
       "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/specs/deneb/builder.md b/specs/deneb/builder.md
index 11a27cf..488e884 100644
--- a/specs/deneb/builder.md
+++ b/specs/deneb/builder.md
@@ -8,10 +8,6 @@
 - [Introduction](#introduction)
 - [Containers](#containers)
   - [New containers](#new-containers)
-    - [`BlindedBlobsBundle`](#blindedblobsbundle)
-    - [`BlindedBlobSidecar`](#blindedblobsidecar)
-    - [`SignedBlindedBlobSidecar`](#signedblindedblobsidecar)
-    - [`SignedBlindedBlockContents`](#signedblindedblockcontents)
     - [`BlobsBundle`](#blobsbundle)
     - [`ExecutionPayloadAndBlobsBundle`](#executionpayloadandblobsbundle)
   - [Extended containers](#extended-containers)
@@ -29,49 +25,15 @@ This is the modification of the builder specification accompanying the Deneb upg
 
 ### New containers
 
-#### `BlindedBlobsBundle`
-
-```python
-class BlindedBlobsBundle(Container):
-    commitments: List[KZGCommitment, MAX_BLOB_COMMITMENTS_PER_BLOCK]
-    proofs: List[KZGProof, MAX_BLOB_COMMITMENTS_PER_BLOCK]
-    blob_roots: List[Root, MAX_BLOB_COMMITMENTS_PER_BLOCK]
-```
-
-#### `BlindedBlobSidecar`
-
-```python
-class BlindedBlobSidecar(Container):
-    block_root: Root
-    index: BlobIndex
-    slot: Slot
-    block_parent_root: Root
-    proposer_index: ValidatorIndex
-    blob_root: Root
-    kzg_commitment: KZGCommitment
-    kzg_proof: KZGProof
-```
-
-#### `SignedBlindedBlobSidecar`
-
-```python
-class SignedBlindedBlobSidecar(Container):
-    message: BlindedBlobSidecar
-    signature: BLSSignature
-```
-
-#### `SignedBlindedBlockContents`
+#### `BlobsBundle`
 
 ```python
-class SignedBlindedBlockContents(Container):
-    signed_blinded_block: SignedBlindedBeaconBlock
-    signed_blinded_blob_sidecars: List[SignedBlindedBlobSidecar, MAX_BLOBS_PER_BLOCK]
+class BlobsBundle(Container):
+  commitments: List[KZGCommitment, MAX_BLOB_COMMITMENTS_PER_BLOCK]
+  proofs: List[KZGProof, MAX_BLOB_COMMITMENTS_PER_BLOCK]
+  blobs: List[Blob, MAX_BLOB_COMMITMENTS_PER_BLOCK]
 ```
 
-#### `BlobsBundle`
-
-Same as [`BlobsBundle`](https://github.com/ethereum/consensus-specs/blob/dev/specs/deneb/validator.md#blobsbundle) in Deneb consensus specs.
-
 #### `ExecutionPayloadAndBlobsBundle`
 
 ```python
@@ -89,7 +51,7 @@ Note: `SignedBuilderBid` is updated indirectly.
 ```python
 class BuilderBid(Container):
     header: ExecutionPayloadHeader # [Modified in Deneb]
-    blinded_blobs_bundle: BlindedBlobsBundle  # [New in Deneb]
+    blob_kzg_commitments: List[KZGCommitment, MAX_BLOB_COMMITMENTS_PER_BLOCK]  # [New in Deneb]
     value: uint256
     pubkey: BLSPubkey
 ```
@@ -117,3 +79,22 @@ class BlindedBeaconBlockBody(Container):
     bls_to_execution_changes: List[SignedBLSToExecutionChange, MAX_BLS_TO_EXECUTION_CHANGES]
     blob_kzg_commitments: List[KZGCommitment, MAX_BLOB_COMMITMENTS_PER_BLOCK]  # [New in Deneb]
 ```
+
+## Building
+
+Builders provide bids as the have in prior forks.
+
+Relays have a few additional duties.
+
+### Bidding
+
+After a relay has verified the execution payload (including any blobs) is correctly constructed, the relay **MUST** additionally return any `KZGCommitments` for those blobs
+in the `SignedBuilderBid`.
+
+### Revealing the `ExecutionPayload`
+
+#### Blinded block processing
+
+Relays verify signed blinded beacon blocks as before, with the additional requirement
+that they must construct `SignedBlobSidecar` objects with the KZG commitment inclusion
+proof before gossiping the blobs alongside the unblinded block.
diff --git a/types/deneb/bid.yaml b/types/deneb/bid.yaml
index 87d1d57..f9ce13c 100644
--- a/types/deneb/bid.yaml
+++ b/types/deneb/bid.yaml
@@ -7,9 +7,13 @@ Deneb:
           header:
             $ref: "../../beacon-apis/types/deneb/execution_payload.yaml#/Deneb/ExecutionPayloadHeader"
             description: "`ExecutionPayloadHeader` to use in block proposal."
-          blinded_blobs_bundle:
-            $ref: "./blobs_bundle.yaml#/Deneb/BlindedBlobsBundle"
-            description: "`BlindedBlobsBundle` to use in block proposal."
+          blob_kzg_commitments:
+            type: array
+            items:
+              $ref: '../../beacon-apis/types/primitive.yaml#/KZGCommitment'
+            minItems: 0
+            maxItems: 4096
+            description: "the `KZGCommitment`s for the associated blobs for this `header`"
       - $ref: '../bellatrix/bid.yaml#/Bellatrix/BuilderBidCommon'
 
   SignedBuilderBid:
diff --git a/types/deneb/blobs_bundle.yaml b/types/deneb/blobs_bundle.yaml
index 2752db8..682449d 100644
--- a/types/deneb/blobs_bundle.yaml
+++ b/types/deneb/blobs_bundle.yaml
@@ -1,43 +1,23 @@
 Deneb:
-  BlobsBundleCommon:
+  BlobsBundle:
     type: object
+    description: "The `BlobsBundle` object from the CL Deneb spec"
     properties:
+      blobs:
+        type: array
+        items:
+          $ref: "../../beacon-apis/types/primitive.yaml#/Blob"
+        minItems: 0
+        maxItems: 4096
       commitments:
         type: array
         items:
           $ref: '../../beacon-apis/types/primitive.yaml#/KZGCommitment'
         minItems: 0
-        maxItems: 6
+        maxItems: 4096
       proofs:
         type: array
         items:
           $ref: '../../beacon-apis/types/primitive.yaml#/KZGProof'
         minItems: 0
-        maxItems: 6
-
-  BlindedBlobsBundle:
-    allOf:
-      - $ref: '#/Deneb/BlobsBundleCommon'
-    type: object
-    description: "A blobs container with the SSZ root of the blobs rather than the full blobs."
-    properties:
-      blob_roots:
-        type: array
-        items:
-          $ref: "../../beacon-apis/types/primitive.yaml#/Root"
-        minItems: 0
-        maxItems: 6
-
-
-  BlobsBundle:
-    allOf:
-      - $ref: '#/Deneb/BlobsBundleCommon'
-    type: object
-    description: "The `BlobsBundle` object from the CL Deneb spec"
-    properties:
-      blobs:
-        type: array
-        items:
-          $ref: "../../beacon-apis/types/primitive.yaml#/Blob"
-        minItems: 0
-        maxItems: 6
+        maxItems: 4096