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+# Custom XEPs
+
+| Title | Description |
+| --- | --- |
+| Thumbnails | A specification for different types of thumbnails |
+| File Upload Notifications | A specification for telling clients that a file will be sent as soon as it is uploaded |
diff --git a/xep-xxxx-thumbnails.md b/xep-xxxx-thumbnails.md
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+# Thumbnails
+## Introduction
+
+When sending media, it is often helpful for users when a thumbnail can be shown before the
+actual file is finished downloading.
+
+XMPP already has a protocol for specifying thumbails, [Jingle Content Thumbnails](https://xmpp.org/extensions/xep-0264.html).
+However, this protocol requires that the thumbnail is a base64-encoded image published using
+[Bits of Binary](https://xmpp.org/extensions/xep-0231.html). This prevents clients from implementing newer technologies, such as
+[Blurhash](https://github.com/woltapp/blurhash).
+
+This document specifies are more general and extensible element for specifiying thumbnails.
+
+## Usage
+
+```
+
+ LEHV6nWB2yk8pyoJadR*.7kCMdnj
+
+```
+
+In this example, the thumbnail is specified of type `blurhash`, which means that a supporting
+client should decode the `` element using the [Blurhash](https://github.com/woltapp/blurhash) algorithm.
+
+In order to enable a sort-of interoperability with [Jingle Content Thumbnails](https://xmpp.org/extensions/xep-0264.html), a type
+`urn:xmpp:thumbs:0` is defined. If this is specified, then a supporting client must
+interpret the child of the `` as an `` element as specified by
+:[Jingle Content Thumbnails](https://xmpp.org/extensions/xep-0264.html)
+
+```
+
+
+
+
+
+```
+
+In the case of [Jingle Content Thumbnails](https://xmpp.org/extensions/xep-0264.html) compatibility,
+the `` element must contain exactly one `` element.
+
+Other extensions may define similar types. Note that the content of the `` element
+is dependent on the type specified in the ``
+element.
+
+### Thumbnail Types
+#### Blurhash
+
+If a sender specifies the type to be of `blurhash`, then the payload must contain the
+image data as specified by the [Blurhash](https://github.com/woltapp/blurhash) algorithm. Care should be taken to prevent
+the blurhash data from growing to large in order to prevent hitting the stanza size limit.
+
+## Usage with Stateless Inline Media Sharing
+
+NOTE: This example is taken from [Stateless Inline Media Sharing](https://xmpp.org/extensions/xep-0385.html) and modified for this protocol.
+
+```
+
+ Look at the nice view from the summit.
+
+
+
+ image/jpeg
+ summit.jpg
+ 3032449
+ 2XarmwTlNxDAMkvymloX3S5+VbylNrJt/l5QyPa+YoU=
+ 2AfMGH8O7UNPTvUVAM9aK13mpCY=
+ Photo from the summit.
+
+
+
+
+
+
+ LEHV6nWB2yk8pyoJadR*.7kCMdnj
+
+
+
+
+
+
+
+
+
+```
+
+## Security Considerations
+
+The same considerations apply as specified by [Jingle Content Thumbnails](https://xmpp.org/extensions/xep-0264.html).