Ka on Nostr: What is a zap

{ "id": "c929dde00113f5f49f5a82efb81e814a90fb5ebe11b3d9aabd7b27c04a2337fd", "pubkey": "484d000d9a78051d24660b6e6ca437f0f218e3b40f0d8c0032ab2872c7cf24b1", "created_at": 1688242499, "kind": 1, "tags": [], "content": "What is a zap", "sig": "85fd582edf221a743b8de56a3261fe2c6d56e5ddd5f11fbdc7cd12745dbe78ab1aef530b6351c3eb3117daaa806f6452c79c4447bfd083ef318372fbdb3157c2" }