remove requirement for root "x" tag

README.md

@@ -27,6 +27,7 @@ BUDs or **Blossom Upgrade Documents** are short documents that outline an additi
 - [BUD-08: Nostr File Metadata Tags](./buds/08.md)
 - [BUD-09: Blob Report](./buds/09.md)
 - [BUD-10: Blossom URI Schema](./buds/10.md)
+- [BUD-12: Chunked blobs](./buds/12.md)
 
 ## Endpoints
 
@@ -56,6 +57,7 @@ Blossom Servers expose a few endpoints for managing blobs
 | ------- | ------------------- | ------------------ |
 | `24242` | Authorization event | [01](./buds/01.md) |
 | `10063` | User Server List    | [03](./buds/03.md) |
+| `2001`  | Merkle tree         | [12](./buds/12.md) |
 
 ## License
 

buds/10.md

@@ -204,4 +204,3 @@ blossom:b1674191a88ec5cdd733e4240a81803105dc412d6c6708d53ab94fc248f4f553.pdf?xs=
 ```
 blossom:a7b3c2d1e4f5a6b7c8d9e0f1a2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b1.png?xs=cdn.example.com&xs=media.nostr.build&as=781208004e09102d7da3b7345e64fd193cd1bc3fce8fdae6008d77f9cabcd036&as=b53185b9f27962ebdf76b8a9b0a84cd8b27f9f3d4abd59f715788a3bf9e7f75e&sz=2547831
 ```
-

buds/12.md

@@ -0,0 +1,68 @@
+# BUD-12
+
+## Chunked blobs
+
+`draft` `optional`
+
+Breaking large blobs into smaller chunks for distribution
+
+### Chunking
+
+The client MAY break large blobs into any number or size of chunks. although its recommended to use the size `1Mb` or `4Mb` for small and large chunks
+
+Clients MUST NOT pad the remaining chunk, If clients need privacy they should use random chunk sizes and optionally encrypt the large blob
+
+### Publishing
+
+Clients should publish a `2001` kind event after chunking the file in order to store the list of chunks
+
+The events MUST contain an ordered list of `chunk` tags with the sha256 hashes of the chunks
+
+The `content` field MUST be a human readable description of the chunked file
+
+```json
+{
+  "tags": [
+    [ "chunk", "7e668b56a58c7891e0cf263ea3f093b75eebade23d663a45aa9920f347b3d671"],
+    [ "chunk", "9b9c44a91396f19fd8700986eb0586dff2dcccf96c75bc2caefef302bcd78da1"],
+    [ "chunk", "7a281548f1223664b855b10b08e59e84389ccabeb742517f6cd75eda2724a798"],
+    [ "chunk", "fadeccee86b123088bbc452df10e8fbc99d4c2f22a70ef7a35605ec8e439c345"],
+    [ "chunk", "5d62398419e6d136771541f3d2215e0ce31b1be45e99dbc64b43a4b734b447ca"],
+  ]
+}
+```
+
+### Metadata
+
+The `2001` event MAY include additional metadata tags to help other clients know the filename, mime type or servers to download from
+
+Metadata tags:
+  - `name` Filename
+  - `mime` Mime type of file
+  - `size` Total size in bytes of the file
+  - `server` (multiple) Recommended servers to download chunks from
+
+### Examples
+
+Example `2001` event
+```json
+{
+  "pubkey": "5328e6c743a50271745e16476590ba7ea3dc591c65f3a5e2b03430814c1dabc0",
+  "created_at": 1731405194,
+  "kind": 2001,
+  "content": "Large zip archive of documents",
+  "tags": [
+    [ "chunk", "7e668b56a58c7891e0cf263ea3f093b75eebade23d663a45aa9920f347b3d671"],
+    [ "chunk", "9b9c44a91396f19fd8700986eb0586dff2dcccf96c75bc2caefef302bcd78da1"],
+    [ "chunk", "7a281548f1223664b855b10b08e59e84389ccabeb742517f6cd75eda2724a798"],
+    [ "chunk", "fadeccee86b123088bbc452df10e8fbc99d4c2f22a70ef7a35605ec8e439c345"],
+    [ "chunk", "5d62398419e6d136771541f3d2215e0ce31b1be45e99dbc64b43a4b734b447ca"],
+    [ "name", "example.mp4" ],
+    [ "mime", "video/mp4" ],
+    [ "size", "4823449" ],
+    [ "server", "https://cdn.example.com" ],
+    [ "server", "https://nostr.download" ]
+  ]
+}
+```
+