Winter break for RCH WG - Next call 18th January 2023

Hello,

We will follow the example of the VC WG and cancel the next two RCH WG 
meetings on 21 December 2022 and 04 January 2023. The next meeting will 
therefore be on 18 January 2023.

Considering that this is a rather long break, here is some homework here 
are some things that WG members could consider in the meantime:

- Think about how to structure/layer the algorithm and spec(s) so that 
the different use cases we discussed today become possible, e.g. "hash 
the whole dataset", "hash quads individually", "insert/reorder quads", 
"use HMACs instead of SHA-256", etc. See rch-rdh issue 2 
<https://github.com/w3c/rch-rdh/issues/2> and rdf-canon issue 4 
<https://github.com/w3c/rdf-canon/issues/4> and rdf-canon issue 8 
<https://github.com/w3c/rdf-canon/issues/8>.

- Continue to compare and consider different algorithms. See rdf-canon 
issue 6 <https://github.com/w3c/rdf-canon/issues/6>.

- Weigh in on ongoing discussions in the VC WG, specifically their work 
on VC Data Integrity <https://w3c.github.io/vc-data-integrity/>, which 
is one of the efforts that is dependent on the deliverables of our WG here.

Markus+Phil