PACT Workshop Update

Hi all, During the PACT workshop <https://pactworkshop.com/> this
week, hosted by Cloudflare in their London office, we discussed the PACT
problem statement at antifraudcg/proposals/issues/22
<https://github.com/antifraudcg/proposals/issues/22>. On the first day, we
discussed use cases, finding that the highest priority use case is to
reduce friction for users, enabling sites to re-use friction across site
boundaries. Browser AI agents are user agents, so the group felt they are
also captured by this use case.

On the second day, several individuals presented technical proposals to
this end, some of which they had already published at
antifraudcg/pact/issues <https://github.com/antifraudcg/pact/issues>.
During that day, we synthesized our technical proposals into an
architecture proposal for a system that solves this use case subject to the
constraints we set forth in the problem statement. We discussed
non-functional requirements of the architecture such as privacy,
performance, and concurrency.

On the last day, we discussed next steps. We decided that a side meeting at
IETF 126 in Vienna was the right venue to seek wider feedback and decide
how to take it forward.. In the meantime, we created a GitHub organization
called Moderation-of-unLinkable-Endorsements
<https://github.com/Moderation-of-unLinkable-Endorsements> where the
architecture and related IETF/W3C drafts will be fleshed out in more
detail. If you are curious for more information, the architecture draft
repository
<https://github.com/Moderation-of-unLinkable-Endorsements/architecture-draft>
has sequence diagrams reflecting the candidate architecture we discussed
the most during the meeting.

Best, Sam