R&Wbase: Git for triples

Quite an interesting paper:

ABSTRACT
Read/Write infrastructures are often predicted to be the next big
challenge for Linked Data. In the domains of Open Data and cultural
heritage, this is already an urgent need. They require the exchange
of partial graphs, personalised views on data and a need for trust.
A strong versioning model supported by provenance is therefore
crucial. However, current triple stores handle storage rather naïvely
and don not seem up for the challenge.
In this paper, we introduce R&Wbase, a new approach build on
the principles of distributed version control. Triples are stored in
a
quad
-store as consecutive deltas, reducing the amount of stored
triples drastically. We demonstrate an efficient technique for storing
different deltas in a single graph, allowing simple resolving of
different versions and separate access. Furthermore, provenance
tracking is included at operation level, since each commit, storing
a delta and its metadata, is described directly as provenance. The
use of branching is supported, providing flexible custom views on
the data. Finally, we provide a straightforward way for querying
different versions through SPARQL, by using virtual graphs

http://events.linkeddata.org/ldow2013/papers/ldow2013-paper-01.pdf

Perhaps related to the diff/delta concept for writing data...