Following are the minutes the unofficial telecon of the XRI TC at:

Date: Thursday, 21 August 2008 USA Time: 8:00AM - 9:00PM Pacific Time

ATTENDING

John Bradley Nat Sakimura Nika Jones Drummond Reed

REGRETS Peter Davis (vacation) Marty Schleiff

AGENDA

1) MIXI

Nat explained that Mixi, the largest SNS in Japan with about 15M users, has adopted OpenID and is using it in an innovative way in that they are providing OpenID identifiers in OpenID message responses that can not only be used to authenticate a Mixi member, but to prove that one Mixi user is a friend of another Mixi user. See the writeup on Nat's blog at:

http://www.sakimura.org/en/

Nat explained that Mixi's use of OpenID is still early and does not yet support XRI, though their syntax for internationalized identifiers is similar. Nat said that he has found that there is consensus that if you dive deeply into OpenID, using an http: based OpenID has many problems, such as those illustrated in the paper we gave at the IDtrust Symposium last February:

Http://middleware.internet2.edu/idtrust/2008/papers/01-reed-openid-xri-xrds. pdf

John has also found in OSIS OpenID testing that of all the OpenID providers (OPs) he has tested, only one currently implements the recommended policy of automatically redirectly http: URIs to https: URIs. Nat said Mixi does the same thing; in this case it would be the second.

2) W3C TAG DISCUSSION

Although Peter was not able to attend this meeting, he, Drummond, and John have a call with the W3C TAG leadership tomorrow to discuss next steps.

http://lists.w3.org/Archives/Public/www-tag/

Drummond posted a message to the XRI TC list last week regarding one specific topic - URN requirements - but there was not time left on the agenda to discuss it. However we discussed it briefly on this call and agreed it should be posted to the TAG list before tomorrow's call.

# DRUMMOND to post the URN requirement email to the TAG list.

Drummond also said that there have been off-list communications from observers of the TAG discussion regarding the strong need for abstract identifiers vs. concrete "locators".

We summarized the four main "legs" of the argument for the XRI layer of abstract identification:

1) Separation of abstract from concrete identifiers for purposes such as persistence, descriptor management, and synonym management. 2) Cross-references - the ability to reuse identifiers across contexts. 3) Global context symbols - the ability to share contexts across contexts. 4) Uniform discovery - the (growing) feature set of XRDS documents.

We then discussed the specific topics/questions that we should propose pursuing with the TAG (not necessarily in this order):

1) XRDS: Determine the TAG's input on XRDS and http-based XRDS discovery and discuss if this can be "carved out" for continued work. 2) http: subschemes: Arrive at a conclusion about standardization of http: subschemes to do URI-scheme-to-http-scheme mappings. Should that be W3C work or XRI TC work? 3) xri: scheme: Should we apply for a provisional xri: scheme while this discussion is ongoing, because this is the proper approach (as we have now been educated)? 4) IRI and URI compatability: close the misunderstanding about improper use of symbols in an XRI when it is used as a URI - clarify that we are using the URI spec properly (the regname rule).

# DRUMMOND to write this up and send to the attendees for tomorrow's call.

# DRUMMOND to send a report on tomorrow's call to the TC list.

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