diff --git a/61.md b/61.md
index 4e2148c..d46b154 100644
--- a/61.md
+++ b/61.md
@@ -43,11 +43,11 @@ Clients MUST prefix the pubkey they p2pk-lock with `"02"` (for nostr<>cashu pubk
 ```jsonc
 {
     kind: 9321,
-    content: "[{\"amount\":1,\"C\":\"02277c66191736eb72fce9d975d08e3191f8f96afb73ab1eec37e4465683066d3f\",\"id\":\"000a93d6f8a1d2c4\",\"secret\":\"[\\\"P2PK\\\",{\\\"nonce\\\":\\\"b00bdd0467b0090a25bdf2d2f0d45ac4e355c482c1418350f273a04fedaaee83\\\",\\\"data\\\":\\\"02eaee8939e3565e48cc62967e2fde9d8e2a4b3ec0081f29eceff5c64ef10ac1ed\\\"}]\"}]",
+    content: "Thanks for this great idea.",
     pubkey: "sender-pubkey",
     tags: [
         [ "amount", "1", "sat" ],
-        [ "comment", "Great point" ],
+        [ "proof", "{\"amount\":1,\"C\":\"02277c66191736eb72fce9d975d08e3191f8f96afb73ab1eec37e4465683066d3f\",\"id\":\"000a93d6f8a1d2c4\",\"secret\":\"[\\\"P2PK\\\",{\\\"nonce\\\":\\\"b00bdd0467b0090a25bdf2d2f0d45ac4e355c482c1418350f273a04fedaaee83\\\",\\\"data\\\":\\\"02eaee8939e3565e48cc62967e2fde9d8e2a4b3ec0081f29eceff5c64ef10ac1ed\\\"}]\"}" ],
         [ "u", "https://stablenut.umint.cash", ],
         [ "e", "<zapped-event-id>", "<relay-hint>" ],
         [ "p", "e9fbced3a42dcf551486650cc752ab354347dd413b307484e4fd1818ab53f991" ], // recipient of nut zap
@@ -55,8 +55,9 @@ Clients MUST prefix the pubkey they p2pk-lock with `"02"` (for nostr<>cashu pubk
 }
 ```
 
-* `.content` is an array of p2pk-locked outputs.
+* `.content` is an optional comment for the nutzap
 * `amount` is a shorthand for the combined amount of all outputs. -- Clients SHOULD validate that the sum of the amounts in the outputs matches.
+* `proof` is one ore more proofs p2pk-locked to the pubkey the recipient specified in their `kind:10019` event.
 * `u` is the mint the URL of the mint EXACTLY as specified by the recipient's `kind:10019`.
 * `e` zero or one event that is being nutzapped.
 * `p` exactly one pubkey, specifying the recipient of the nutzap.