diff --git a/zip-0312.rst b/zip-0312.rst
index 934763b8..66663400 100644
--- a/zip-0312.rst
+++ b/zip-0312.rst
@@ -217,9 +217,9 @@ along with the message and the set of signing commitments. (Note that this diffe
 from regular FROST which just requires an authenticated channel.)
 
 In Zcash, the message that needs to be signed is actually the SIGHASH
-transaction hash, which is does not convey enough information for the signers to
+transaction hash, which does not convey enough information for the signers to
 decide if they want to authorize the transaction or not. Therefore, in practice,
-more data is needed to be sent from the Coordinator to the signers, possibly the
+more data is needed to be sent (over the same encrypted, authenticated channel) from the Coordinator to the signers, possibly the
 transaction itself, openings of value commitments, decryption of note
 ciphertexts, etc.; and the signers must check that the given SIGHASH matches the
 data sent from the Coordinator, or compute the SIGHASH themselves from that