1 files changed, 3 insertions, 0 deletions

diff --git a/19.md b/19.md
index 3ea8e11..aaffc4b 100644
--- a/19.md
+++ b/19.md
@@ -36,6 +36,7 @@ These are the possible bech32 prefixes with `TLV`:
   - `nevent`: a nostr event
   - `naddr`: a nostr _replaceable event_ coordinate
   - `nrelay`: a nostr relay (deprecated)
+  - `nchat`: a nostr chat conversation
 
 These possible standardized `TLV` types are indicated here:
 
@@ -44,6 +45,7 @@ These possible standardized `TLV` types are indicated here:
     - for `nprofile` it will be the 32 bytes of the profile public key
     - for `nevent` it will be the 32 bytes of the event id
     - for `naddr`, it is the identifier (the `"d"` tag) of the event being referenced. For normal replaceable events use an empty string.
+    - for `nchat`, see chat nip for details.
 - `1`: `relay`
   - for `nprofile`, `nevent` and `naddr`, _optionally_, a relay in which the entity (profile or event) is more likely to be found, encoded as ascii
   - this may be included multiple times
@@ -53,6 +55,7 @@ These possible standardized `TLV` types are indicated here:
 - `3`: `kind`
   - for `naddr`, the 32-bit unsigned integer of the kind, big-endian
   - for `nevent`, _optionally_, the 32-bit unsigned integer of the kind, big-endian
+  - for `nchat`, the NIP number of the chat.
 
 ## Examples