XML Digital Signature, a Standard?

Dear XMLdsig developers,

 

Could you kindly give me some guideline about the following question?

XML Digital Signature, as I understand, is an IETF/W3C Recommendation.

Is it a Standard registered by some specialized institute, like ISO, IEEE
etc.?

If NO, is there a <hard> reference to <XML-Signature Syntax and Processing>
document (http://www.w3.org/TR/xmldsig-core/): ISBN or something else?

A reference that allows to get the text from library, not URL?

This document, does it have some official number etc. in addition to
publication date?

 

Thank you! 

 

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With best regards,

Alex Prikhodko

www.frsd.ru

Tel. +7-(495)-795-08-59 +161