diff --git a/EIPS/eip-695.md b/EIPS/eip-695.md
index 70e8e9b8..c917d29c 100644
--- a/EIPS/eip-695.md
+++ b/EIPS/eip-695.md
@@ -76,5 +76,9 @@ Not currently implemented.
 ## Implementation
 Would be good to have a test to confirm that expected==got.
 
+## Reference
+
+Return value `QUANTITY` adheres to standard JSON RPC hex value encoding, as documented here: https://github.com/ethereum/wiki/wiki/JSON-RPC#hex-value-encoding.
+
 ## Copyright
 Copyright and related rights waived via [CC0](https://creativecommons.org/publicdomain/zero/1.0/).