AW: Sharp-S and Final Sigma Consensus Call Results

Andrew Sullivan ajs at
Wed Dec 9 22:02:21 CET 2009

On Wed, Dec 09, 2009 at 03:55:48PM -0500, Vint Cerf wrote:
> wouldn't mapping of pvalid chars would disrupt the A-Label/U-label  
> equivalence?

Well, what do you mean by "mapping"?

Suppose ß were PVALID.  If an application always took "ß" and
converted it to "ss" before handing it to the IDNA subsystem, how is
the U-label spelled?  With ß or ss?  (I can make an argument either
way, I think.)


Andrew Sullivan
ajs at
Shinkuro, Inc.

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