From 4bed67218aaeb0e28bc4e40910f27cc64fc68f42 Mon Sep 17 00:00:00 2001
From: str4d <jack@electriccoin.co>
Date: Thu, 23 Jun 2022 22:33:40 +0100
Subject: [PATCH] Add note about relationship between signatures and proofs

Co-authored-by: Daira Hopwood <daira@jacaranda.org>
---
 src/bundle/batch.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/bundle/batch.rs b/src/bundle/batch.rs
index 4fee9590..c60d0cd5 100644
--- a/src/bundle/batch.rs
+++ b/src/bundle/batch.rs
@@ -69,6 +69,8 @@ impl BatchValidator {
     pub fn validate<R: RngCore + CryptoRng>(self, vk: &VerifyingKey, rng: R) -> bool {
         if self.signatures.is_empty() {
             // An empty batch is always valid, but is not free to run; skip it.
+            // Note that a transaction has at least a binding signature, so if
+            // there are no signatures, there are also no proofs.
             return true;
         }