diff --git a/src/hub-rest-api/spec.yaml b/src/hub-rest-api/spec.yaml
index 236a1a4..1381a32 100644
--- a/src/hub-rest-api/spec.yaml
+++ b/src/hub-rest-api/spec.yaml
@@ -1552,7 +1552,7 @@ components:
           examples:
             - 2
         timestamp:
-          title: Farcaster epoch timestamp in seconds
+          description: Seconds since [Farcaster Epoch]((https://docs.farcaster.xyz/learn/what-is-farcaster/messages#timestamps) which began on Jan 1, 2021 00:00:00 UTC 
           type: integer
           format: int64
           examples:
@@ -1949,6 +1949,7 @@ components:
       type: object
       properties:
         timestamp:
+          description: Seconds since Unix Epoch which began on Jan 1, 1970 00:00:00 UTC
           type: integer
           format: uint64
         name: