Publish SlashReport onto the Tributary

coordinator/tributary/src/transaction.rs

@@ -6,7 +6,7 @@ use rand_core::{RngCore, CryptoRng};
 
 use blake2::{digest::typenum::U32, Digest, Blake2b};
 use ciphersuite::{
-  group::{ff::Field, GroupEncoding},
+  group::{ff::Field, Group, GroupEncoding},
   Ciphersuite, Ristretto,
 };
 use schnorr::SchnorrSignature;
@@ -80,6 +80,18 @@ impl Signed {
   }
 }
 
+impl Default for Signed {
+  fn default() -> Self {
+    Self {
+      signer: <Ristretto as Ciphersuite>::G::identity(),
+      signature: SchnorrSignature {
+        R: <Ristretto as Ciphersuite>::G::identity(),
+        s: <Ristretto as Ciphersuite>::F::ZERO,
+      },
+    }
+  }
+}
+
 /// The Tributary transaction definition used by Serai
 #[derive(Clone, PartialEq, Eq, Debug, BorshSerialize, BorshDeserialize)]
 pub enum Transaction {