From a670e5dffb0db1ce416c20347cbfde2c5dc04c84 Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Fri, 1 Jan 2021 19:31:09 +0100
Subject: Add content for metadata block type chapter

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
---
 doc/paper/main.tex | 43 +++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 41 insertions(+), 2 deletions(-)

diff --git a/doc/paper/main.tex b/doc/paper/main.tex
index 976f2fc..eeb0b15 100644
--- a/doc/paper/main.tex
+++ b/doc/paper/main.tex
@@ -165,8 +165,47 @@ could hold more than 10 Million blocks.
 %   - content pointer
 %   - references to other blocks
 
+A "metadata" block would hold the actual profile post data, although not the
+actual content of the post to the profile.
+As its name tells, it holds the metadata of the post, that is
 
-\subsection{Content}
+\begin{itemize}
+    \item A format version number
+    \item Date and Time when the block was created
+    \item A list of public keys that post to the profile
+    \item a sub-object that is either
+        \begin{itemize}
+            \item Empty
+
+            \item A "post" object, holding
+                \begin{itemize}
+                    \item A pointer to the content "blob" (see \ref{sec:datatypecontent})
+                    \item A mimetype for the content
+                    \item An (optional) "In-Reply-To" reference
+                    \item A (optional) list of references to other (metadata) blocks
+                    \item possibly more (to be defined)
+                \end{itemize}
+
+            \item A "profile" object, holding for example
+                \begin{itemize}
+                    \item a Profile name
+                    \item a Profile picture
+                    \item a Profile description/text
+                    \item possibly more (to be defined)
+                \end{itemize}
+
+            \item A ref object, holding a reference to another block or metadata
+                block that is referenced (see \ref{sec:postreplies})
+
+            \item or something else (to be defined)
+        \end{itemize}
+\end{itemize}
+
+Because of its size, this object type might not be replicated as much as the
+"block" object type.
+
+
+\subsection{Content}\label{sec:datatypecontent}
 % What a "content" object is (and what it is not)
 
 \subsection{Data format}
@@ -193,7 +232,7 @@ could hold more than 10 Million blocks.
 \subsection{Post types}
 % What kinds of posts exist
 
-\subsection{Comments}
+\subsection{Replies}\label{sec:postreplies}
 % How comments on posts could be implemented
 
 
-- 
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