vietnam crab exporter soft-shell crab

Simon Willison’s Weblog

22nd January 2007 - Link Blog

Group Membership Protocol. Martin Atkins’ proposal for a simple “is OpenID X a member of group Y?” protocol, useful for whitelists that can scale to handle large numbers of entries.

Posted 22nd January 2007 at 8:27 am

Recent articles

Claude Fable 5.1 made me a really nice animated pelican - 1st September 2026
Understanding ChatGPT Work - 30th August 2026
Conceptual integrity and counting lines of code - 19th August 2026

This is a link post by Simon Willison, posted on 22nd January 2007.

martin-atkins 7 openid 213 whitelisting 7

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe