diff --git a/doc/nostr/notes.md b/doc/nostr/notes.md
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@@ -1,6 +1,7 @@
 # Notes
 
 - NIP-73 for external IDs ("osm:node:123456"): https://github.com/nostr-protocol/nips/blob/744bce8fcae0aca07b936b6662db635c8b4253dd/73.md
+- NIP 68/92/94 for place photos and image metadata (add "i" tag for "osm:node:123456" to NIP-68)
 - Places NIP-XX draft PR: https://github.com/nostr-protocol/nips/pull/927
 - NPM package for generating multi-resolution geotags: https://sandwichfarm.github.io/nostr-geotags/#md:nostr-geotags
 - AppleSauce docs for AI agents: https://applesauce.build/introduction/mcp-server.html