Re: [urn] CTS and CITE2 URNs

Peter Saint-Andre <stpeter@stpeter.im> Thu, 07 March 2019 02:31 UTC

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To: Julian Reschke <julian.reschke@gmx.de>, "Hakala, Juha E" <juha.hakala@helsinki.fi>, "urn@ietf.org" <urn@ietf.org>
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From: Peter Saint-Andre <stpeter@stpeter.im>
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Date: Wed, 6 Mar 2019 19:31:17 -0700
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Archived-At: <https://mailarchive.ietf.org/arch/msg/urn/kUCtMxKXkfZeIFGnXEW6yM6cNMA>
Subject: Re: [urn] CTS and CITE2 URNs
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On 3/5/19 7:30 AM, Julian Reschke wrote:
> On 05.03.2019 07:58, Hakala, Juha E wrote:
>> Hello,
>>
>> from my point of view these namespace registrations are interesting,
>> not least because I am currently involved revision of ISO 690, the ISO
>> standard for bibliographic referencing. URNs for citing resources is
>> something that needs to be considered in the revision process.
>>
>> I am in favour of registering these namespaces. The only reservation I
>> have is the usage of "@" to separate subreferences. Would it be
>> possible to use hash character for this purpose?
>>
>> At https://cite-architecture.github.io/ohco2/quick/
>>
>> the researchers themselves give the following example:
>>
>> urn:cts:greekLit:tlg5026.msA.hmt:1.2.lemma#μῆνις
>>
>> which would be better aligned with RFCs 3986 and 8141. According to
>> the request, there are no plans to make these URNs actionable, so in
>> the short term it does not really matter which character is used, but
>> if in the long term actionability becomes an issue, it is better not
>> to divert from RFC 3986 unless there is a good reason to do so.
>> ...
> 
> How is using "#" (the fragment identifier) better aligned with RFC 3986???

Correct. '@' is in the pchar rule from RFC 3986, and RFC 8141 defines
the NSS rule as one or more code points conforming to the pchar rule.
Thus '@' is fine here, as far as I can see.

Peter