From e718857b2fece034d2c5aa280ffabb939943393e Mon Sep 17 00:00:00 2001
From: vyzo <vyzo@hackzen.org>
Date: Mon, 13 Mar 2023 12:14:30 +0200
Subject: [PATCH] enhance comment about lookup cid semantics

---
 chain/index/interface.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/chain/index/interface.go b/chain/index/interface.go
index ff46ecad7..8907dc09d 100644
--- a/chain/index/interface.go
+++ b/chain/index/interface.go
@@ -25,6 +25,8 @@ type MsgInfo struct {
 // MsgIndex is the interface to the message index
 type MsgIndex interface {
 	// GetMsgInfo retrieves the message metadata through the index.
+	// The lookup is done using the onchain message Cid; that is the signed message Cid
+	// for SECP messages and unsigned message Cid for BLS messages.
 	GetMsgInfo(ctx context.Context, m cid.Cid) (MsgInfo, error)
 	// Close closes the index
 	Close() error