From 2e4c3a0349ead57f758df4b97c28bfb4b97f4d7a Mon Sep 17 00:00:00 2001
From: hzrd149 <github@hzrd149.com>
Date: Tue, 25 Nov 2025 08:53:51 -0600
Subject: [PATCH] remove requirement for root "x" tag

---
 buds/12.md | 52 ++--------------------------------------------------
 1 file changed, 2 insertions(+), 50 deletions(-)

diff --git a/buds/12.md b/buds/12.md
index 3ea01d2..088f17c 100644
--- a/buds/12.md
+++ b/buds/12.md
@@ -12,8 +12,6 @@ The client MAY break large blobs into any number or size of chunks. although its
 
 Clients MUST NOT pad the remaining chunk, If clients need privacy they should use random chunk sizes and optionally encrypt the large blob
 
-Clients MUST create a merkle tree using the chunk hashes as the leaf nodes
-
 ### Publishing
 
 Clients should publish a `2001` kind event after chunking the file in order to store the list of chunks
@@ -34,49 +32,6 @@ The `content` field MUST be a human readable description of the chunked file
 }
 ```
 
-The event MUST have an `x` tag with the sha256 hash of the ordered concatenated hashes of each chunk
-
-Example using `xxd` and `sha256sum`:
-```bash
-#!/bin/bash
-hashes=(
-  "7e668b56a58c7891e0cf263ea3f093b75eebade23d663a45aa9920f347b3d671"
-  "9b9c44a91396f19fd8700986eb0586dff2dcccf96c75bc2caefef302bcd78da1"
-  "7a281548f1223664b855b10b08e59e84389ccabeb742517f6cd75eda2724a798"
-  "fadeccee86b123088bbc452df10e8fbc99d4c2f22a70ef7a35605ec8e439c345"
-  "5d62398419e6d136771541f3d2215e0ce31b1be45e99dbc64b43a4b734b447ca"
-)
-
-concatenated=""
-for hex in "${hex_array[@]}"; do
-  concatenated="${concatenated}${hex}"
-done
-
-echo "Chunks:"
-printf '%s\n' "${hex_array[@]}"
-
-echo -e "\nConcatenated:"
-echo "$concatenated"
-
-echo -e "\nRoot hash:"
-echo "$concatenated" | xxd -r -p | sha256sum
-```
-
-The final `chunk` tags and `x` tag should look something like this
-
-```json
-{
-  "tags": [
-    [ "chunk", "7e668b56a58c7891e0cf263ea3f093b75eebade23d663a45aa9920f347b3d671"],
-    [ "chunk", "9b9c44a91396f19fd8700986eb0586dff2dcccf96c75bc2caefef302bcd78da1"],
-    [ "chunk", "7a281548f1223664b855b10b08e59e84389ccabeb742517f6cd75eda2724a798"],
-    [ "chunk", "fadeccee86b123088bbc452df10e8fbc99d4c2f22a70ef7a35605ec8e439c345"],
-    [ "chunk", "5d62398419e6d136771541f3d2215e0ce31b1be45e99dbc64b43a4b734b447ca"],
-    [ "x", "2d839865ac17d8bb10168490a88107637619f79dac21275fcec1705162581f39" ],
-  ]
-}
-```
-
 ### Metadata
 
 The `2001` event MAY include additional metadata tags to help other clients know the filename, mime type or servers to download from
@@ -92,25 +47,22 @@ Metadata tags:
 Example `2001` event
 ```json
 {
-  "id": "fd2f4da046851170576e7a09009e63f752dc469c61a24faca514b2cedfe641aa",
   "pubkey": "5328e6c743a50271745e16476590ba7ea3dc591c65f3a5e2b03430814c1dabc0",
   "created_at": 1731405194,
   "kind": 2001,
-  "content": "Here is the original version",
+  "content": "Large zip archive of documents",
   "tags": [
     [ "chunk", "7e668b56a58c7891e0cf263ea3f093b75eebade23d663a45aa9920f347b3d671"],
     [ "chunk", "9b9c44a91396f19fd8700986eb0586dff2dcccf96c75bc2caefef302bcd78da1"],
     [ "chunk", "7a281548f1223664b855b10b08e59e84389ccabeb742517f6cd75eda2724a798"],
     [ "chunk", "fadeccee86b123088bbc452df10e8fbc99d4c2f22a70ef7a35605ec8e439c345"],
     [ "chunk", "5d62398419e6d136771541f3d2215e0ce31b1be45e99dbc64b43a4b734b447ca"],
-    [ "x", "2d839865ac17d8bb10168490a88107637619f79dac21275fcec1705162581f39" ],
     [ "name", "example.mp4" ],
     [ "mime", "video/mp4" ],
     [ "size", "4823449" ],
     [ "server", "https://cdn.example.com" ],
     [ "server", "https://nostr.download" ]
-  ],
-  "sig": "cd589a4ea702185c69d1fec93a7704265071b674c5708a1da04d08bcba873f5277bc0abb379cbb014852fafa2ac951ed49abbdba60028a4f02ef4e31ff2599cb"
+  ]
 }
 ```