Allow relays indicate whether probabilistic count was used in NIP-45

1 files changed, 5 insertions, 0 deletions

diff --git a/45.md b/45.md
index a525391..7b11950 100644
--- a/45.md
+++ b/45.md
@@ -21,6 +21,7 @@ This NIP defines the verb `COUNT`, which accepts a subscription id and filters a
 ```
 
 Counts are returned using a `COUNT` response in the form `{"count": <integer>}`. Relays may use probabilistic counts to reduce compute requirements.
+In case a relay uses probabilistic counts, it MAY indicate it in the response with `approximate` key i.e. `{"count": <integer>, "approximate": <true|false>}`.
 
 ```
 ["COUNT", <subscription_id>, {"count": <integer>}]
@@ -36,4 +37,8 @@ Examples:
 # Count posts and reactions
 ["COUNT", <subscription_id>, {"kinds": [1, 7], "authors": [<pubkey>]}]
 ["COUNT", <subscription_id>, {"count": 5}]
+
+# Count posts approximately
+["COUNT", <subscription_id>, {"kinds": [1]}]
+["COUNT", <subscription_id>, {"count": 93412452, "approximate": true}]
 ```