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Clarify the purpose of reference hashes.

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The server-server specification describes a "reference hash" of an event
and how to calculate it, but is otherwise not mentioned anywhere else in
the document. This change adds a sentence to explain that they are used
for event identifiers in later room versions, which are described in
other documents.

Signed-off-by: Jimmy Cuadra <jimmy@jimmycuadra.com>
This commit is contained in:
Jimmy Cuadra 2019-07-09 01:12:07 -07:00
parent ee04b778cf
commit 5df86dabe0
2 changed files with 3 additions and 1 deletions
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changelogs/server_server/newsfragments/2159.clarification Normal file
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Clarify the purpose of reference hashes.

3
specification/server_server_api.rst
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@ -1134,7 +1134,8 @@ Calculating the reference hash for an event
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The *reference hash* of an event covers the essential fields of an event,
including content hashes. It is calculated as follows.
including content hashes. It is used for event identifiers in room versions 3 and
higher. It is calculated as follows.
1. The event is put through the redaction algorithm.