Optional VID compute field

hotshot-builder-api/Cargo.toml

@@ -13,6 +13,7 @@ derive_more = { workspace = true, features = ["from"] }
 futures = { workspace = true }
 hotshot-types = { workspace = true }
 serde = { workspace = true }
+serde_json = { workspace = true }
 tagged-base64 = { workspace = true }
 thiserror = { workspace = true }
 tide-disco = { workspace = true }

hotshot-builder-api/src/v0_1/block_info.rs

@@ -48,6 +48,8 @@ impl<TYPES: NodeType> AvailableBlockData<TYPES> {
 #[serde(bound = "")]
 pub struct AvailableBlockHeaderInput<TYPES: NodeType> {
     pub vid_commitment: VidCommitment,
+    #[serde(default)]
+    pub vid_precompute_data: Option<serde_json::Value>,
     // signature over vid_commitment, BlockPayload::Metadata, and offered_fee
     pub fee_signature:
         <<TYPES as NodeType>::BuilderSignatureKey as BuilderSignatureKey>::BuilderSignature,

hotshot-builder-core-refactored/src/service.rs

@@ -606,6 +606,7 @@ where
 
         let response = AvailableBlockHeaderInput::<Types> {
             vid_commitment,
+            vid_precompute_data: None,
             fee_signature: signature_over_fee_info,
             message_signature: signature_over_vid_commitment,
             sender: self.builder_keys.0.clone(),

hotshot-builder-core/src/service.rs

@@ -998,6 +998,7 @@ impl<Types: NodeType> ProxyGlobalState<Types> {
 
                     let response = AvailableBlockHeaderInput::<Types> {
                         vid_commitment,
+                        vid_precompute_data: None,
                         fee_signature: signature_over_fee_info,
                         message_signature: signature_over_vid_commitment,
                         sender: pub_key.clone(),

hotshot-testing/src/block_builder/mod.rs

@@ -228,6 +228,7 @@ where
     };
     let header_input = AvailableBlockHeaderInput {
         vid_commitment,
+        vid_precompute_data: None,
         message_signature: signature_over_vid_commitment.clone(),
         fee_signature: signature_over_fee_info,
         sender: pub_key,