From nobody Tue Apr 21 02:13:20 2020 Return-Path: X-Original-To: urn@ietfa.amsl.com Delivered-To: urn@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 82A443A09CB for ; Tue, 21 Apr 2020 02:13:19 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.095 X-Spam-Level: X-Spam-Status: No, score=-0.095 tagged_above=-999 required=5 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, MIME_HTML_ONLY=0.1, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=web.de Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wF7ZKnQOLffk for ; Tue, 21 Apr 2020 02:13:17 -0700 (PDT) Received: from mout.web.de (mout.web.de [212.227.17.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id CF07B3A09C7 for ; Tue, 21 Apr 2020 02:13:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1587460393; bh=c0e/ZUI3CI0PKnOCl1P2eUi/dagdoZ7DHnOTjxmf5a0=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date:In-Reply-To:References; b=D9wYmGAiFs/yu5itDuP6kwZwBcAhdksSGjVBWea7H0VJOqfcXmV6f3bbvkNbR528Q /TjcSF9x30p8tIkrl66ACqV74kAxmN83HdPKWcRC5dbLp+L1D2B6Mf9jIj06CMbnZ8 CLvfuZhAx917aLILxKhUUekQ4IN05qwERHgafZ3c= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [77.87.224.102] ([77.87.224.102]) by web-mail.web.de (3c-app-webde-bap03.server.lan [172.19.172.3]) (via HTTP); Tue, 21 Apr 2020 11:13:13 +0200 MIME-Version: 1.0 Message-ID: From: lars.svensson@web.de To: "Sam DeBord" Cc: urn@ietf.org, "Joshua Darnell" Content-Type: text/html; charset=UTF-8 Date: Tue, 21 Apr 2020 11:13:13 +0200 Importance: normal Sensitivity: Normal In-Reply-To: References: X-UI-Message-Type: mail X-Priority: 3 X-Provags-ID: V03:K1:lgRU/FHzQrj7VaFGstJ7T/xj5QHxeyO22QAQhNzss8oWCgAqXI6i7ZjpdL9LLhdWTwAez wIALcQcObEiYYTm5WJYBnjKTX0R/DgMbu6iq4O5TAvc5nMqp8p2W8KQxspylbHlKtAaQnGdLdIKU xJcEvLUQHMnjWKPsidE54V4ARF1qWGmOuPoO5/TskYrwIU8i2c+0ahYPUL5jchqXFALWKFfSflbn o/5kqS/AlirxmQoVFSJpbJb9dJT0U3zqX4uJvHIRm/NoWTzrTb59H0BOUve2swYBKqfyvTpobE14 Rc= X-UI-Out-Filterresults: notjunk:1;V03:K0:Rl4gqOWTLgI=:da3rNaGpfdRz+QSKeAkkX/ jncHlpQcvMnYdH/yMLc/gPmvhIBoa97mHiMBR9LXBzDGZ0i53Om5trIU4fj9HwAIRooBRDQh3 ySIs+73mkandZjGeCYsjPAmpyzgt1RzFY9o8ZL96ZBoDSNwJaMsMctuJLZvh4HYhHMvvAtQPl enlLGiA6L+FxvaQrzWJCgdZXHJ1GwiUyOLXqIGIKEFMlO+pNAV8VGPeUOfRQn72BxWwZGt0zE pspa3zyTh/4dinGl0rVKGMOdYm+Oyq/z4oan0uOxPlSLWhAT4ZjrDzuA5OlMPo8hsUX3c5KeI mpLUE3Nju2C/XZvQuYtkNFl5DWzjL/kcpHWlhtLaeD1K3Ho/VV8Nhnft52iBijb5e+Sqe2Mrc BUF0TTiVhtLWmoOZhqkOLGr+OwvAAx2CS8HQWAAbAxHVMGJdbvnYNjq6dN8MfzIW6ZXOaFnh9 VZB6PCiR3XWT+uL07/HWCXHxkq+YcqnuDqOQRt7eVNslOsWotpTWglQXfF51kI2WlgkxrVTeN kAJxfje0sMzjR3bi5DZdcAiSGWqvEF3M3QF3FaV5Ga18V4sNODSowYQJ478DCBBGy1QAL22zG gkf5pK1Z0Hjdc6nYgv1ViGkHiMv2As1LnvEQMi6oSF99B/3236I07egR6qZHVYnlneezzueaX 2u5UFWenw1fnKQFadkMV2jqIppHwYio9vE/jU4xrz9Axh5RqQWyiigqLqTJPI7T+znBM= Archived-At: Subject: Re: [urn] Namespace application v2: reso X-BeenThere: urn@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Revisions to URN RFCs List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 21 Apr 2020 09:13:20 -0000
Hi Sam,
 
looking at your resubmission and the comments by Dale and Juha, I think this registration still needs some work.
 
1) I agree with Dale that saying that the syntax of the reso-URNs is the same as specified by RFC 8141 is not of much help when someone tries to understand what the different segments of the URN actually mean. From the "examples of proposed use" it seems that you intend to have different branches underneath the NID (you mention "ulid", "recorder" etc.) that would correspond with the "resource classes" mentioned under "assignment". That means that the syntax would be "urn:reso:<resourceClass>:<resourceClassSpecificString>" or something along those lines. And if you intend to publish a registry of those subdivisions somewhere, an explanation and a reference to that registry would be great (I understand that this already applies to the RESO Data Dicstionay Items).
 
2) I also stumbled over the use of experimental URNs in the RESO namespace. Here you refer to RFC 6963 where it says that 
it is NOT RECOMMENDED for implementers to use example URNs
   for any purposes other than documentation, private testing, and truly
   experimental contexts
[1]. If the use is supposed to be trule experimental, I'd discourage to use URNs from the reso namespace in favour of using urn:example. That would keep confusion at a minimum.
 
[1] https://tools.ietf.org/html/rfc6963#section-3.6
 
Best,
 
Lars
 
 
Gesendet: Sonntag, 08. März 2020 um 17:58 Uhr
Von: "Sam DeBord" <sam@reso.org>
An: urn@ietf.org
Cc: "Joshua Darnell" <josh@reso.org>
Betreff: [urn] Namespace application v2: reso
Please see resubmission of namespace application below.
 
Sam DeBord
CEO | RESO - Real Estate Standards Organization  
sam@reso.org | 206.658.3225 
 
--

Namespace Identifier:

   reso

Version:

   0.1

Date:

   2020-03-08

Registrant:

Real Estate Standards Organization

Sam DeBord, CEO

sam@reso.org – 919.504.9898

Purpose:

The Namespace Identifier (NID) "reso" for Uniform Resource Names
(URNs) will be used to identify resources published by Real Estate Standards Organization: RESO <https://reso.org>.


These might include published standards or protocols that RESO
defines and that make use of URNs.  These namespaces are globally unique.  The URN namespace will be used in public networks by clients to configure and manage resources in the network.  Servers will enforce the uniqueness of the namespaces by using the namespace and the XPath associated with the managed node in the network when accessing a resource.

 

Examples of proposed uses:

 

 

Representation of Unique Licensee IDs: These will have the form of urn:reso:ulid:x, where x is a specific licensee identifier. Licensees can be people like Agents, photographers, appraisers, and others involved in the transaction.

 

Recorder IDs: These are part of an event model proposal, in which the URN will take a form of urn:reso:recorder:org:x, where org is an organization id well-known to RESO and x is identifier of the recording entity in that organization.

 

References to RESO Data Dictionary items: These are already established in our ecosystem. This link shows the "Property" resource, which consists of fields and enumerations. Each field has a RESO-generated RecordID associated with it (or LookupID in the case of enumerated values). For example, the PropertySubType field has a RecordID of 100222, and one of the allowed values for that field is Apartment, which is part of Lookup Field ID 302000 and has LookupID 302001. These would have URNs of the form: urn:reso:rid:100222, urn:reso:lfid:302000, and urn:reso:lid:302001, respectively.

Syntax:

   The syntax of Namespace Specific Strings for the "reso" namespace
   is <NSS> in Uniform Resource Names (URNs) [RFC8141].

The entire URN is case-insensitive.

Assignment:

   RESO will maintain the list of registered resources that use the
   "reso" NID in the "RESO URN Namespace" standards at
   <https://www.reso.org/>.

   The RESO workgroups describe the <NSS>, how namespaces will be allocated, and how experimental namespaces can
   be used within the allocated URN.

   RESO will manage resource classes using the "reso" NID and will be
   the authority for managing resources and associated subsequent
   strings.  RESO will guarantee the uniqueness of the strings by
   validating them against the existing content of the standards.
   RESO may also permit secondary responsibility for certain defined
   resources.  Once a subtree assignment is made, it cannot be
   deleted or reassigned.

   RESO may allow use of experimental type values in specific
   subtrees for testing purposes only.  Note that using experimental
   types may create collision as multiple users may use the same
   values for different resources and specific strings.  All
   experimentation must follow the guidance set forth in "A Uniform
   Resource Name (URN) Namespace for Examples" [RFC6963].

Security and Privacy:

   There are no additional security considerations other than those
   normally associated with the use and resolution of URNs in general.

Interoperability:

   There are no known interoperability issues at this time.

Resolution:

   It is not foreseen that URNs within this namespace will undergo
   resolution.

Documentation:

   Documentation can be found at
   <https://www.reso.org>

 

_______________________________________________ urn mailing list urn@ietf.org https://www.ietf.org/mailman/listinfo/urn
From nobody Thu Apr 23 19:04:03 2020 Return-Path: X-Original-To: urn@ietfa.amsl.com Delivered-To: urn@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1A8E73A0D75 for ; Thu, 23 Apr 2020 19:04:01 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -0.983 X-Spam-Level: X-Spam-Status: No, score=-0.983 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=0.25, SPF_HELO_NONE=0.001, SPF_SOFTFAIL=0.665, URIBL_BLOCKED=0.001] autolearn=no autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=comcastmailservice.net Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 04blf7RnWf06 for ; Thu, 23 Apr 2020 19:03:59 -0700 (PDT) Received: from resqmta-ch2-12v.sys.comcast.net (resqmta-ch2-12v.sys.comcast.net [IPv6:2001:558:fe21:29:69:252:207:44]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 78D2C3A0D77 for ; Thu, 23 Apr 2020 19:03:59 -0700 (PDT) Received: from resomta-ch2-05v.sys.comcast.net ([69.252.207.101]) by resqmta-ch2-12v.sys.comcast.net with ESMTP id RnSbjyA1podOERnh8jdhQM; Fri, 24 Apr 2020 02:03:58 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcastmailservice.net; s=20180828_2048; t=1587693838; bh=wf3V9D0P7OaUG/iZ/gvPyiTo0Rq6GDsndxXqWWpMg8k=; h=Received:Received:Received:Received:From:To:Subject:Date: Message-ID; b=p++bCEl1kII3YTXmmMAQsIoVDFPxhR1pgHY+6ygbE2wYm9k0k7ECT9nRlrdST+dR5 Pwihh0XCxOrgihIgmTA+TQ6CZ1yz/xSrUriC+wNKlowoJXesyoq0gWuA0ca8yDEC3P 30+oG8NPT0ilkkDGpywLzpXD/up73UlMTk1mKDQG31Ft0Wz+PORmbeU5Aa/ryfhWV7 FVRyGFkmD9Zfcyg6pSouHfi6Ukjs8a2q2j1FaoYyUaez8sdrBc7vHEbCghgm2uiP9U NZ6uuGtA4rahK/Lh6JVXnA6uxI87PR65eWHwwifdRTdIuALizcFlIJLuDzRrOJiLdV i57FNQK/lJriw== Received: from hobgoblin.ariadne.com ([IPv6:2601:192:4a00:430:222:fbff:fe91:d396]) by resomta-ch2-05v.sys.comcast.net with ESMTPA id Rnh6jhdGwA3a3Rnh7jalRd; Fri, 24 Apr 2020 02:03:57 +0000 X-Xfinity-VMeta: sc=0.00;st=legit Received: from hobgoblin.ariadne.com (hobgoblin.ariadne.com [127.0.0.1]) by hobgoblin.ariadne.com (8.14.7/8.14.7) with ESMTP id 03O23umE020466; Thu, 23 Apr 2020 22:03:56 -0400 Received: (from worley@localhost) by hobgoblin.ariadne.com (8.14.7/8.14.7/Submit) id 03O23tsp020463; Thu, 23 Apr 2020 22:03:55 -0400 X-Authentication-Warning: hobgoblin.ariadne.com: worley set sender to worley@alum.mit.edu using -f From: worley@ariadne.com (Dale R. Worley) To: Sam DeBord Cc: urn@ietf.org, josh@reso.org In-Reply-To: (sam@reso.org) Sender: worley@ariadne.com (Dale R. Worley) Date: Thu, 23 Apr 2020 22:03:55 -0400 Message-ID: <87r1wdtzas.fsf@hobgoblin.ariadne.com> Archived-At: Subject: Re: [urn] Namespace application v2: reso X-BeenThere: urn@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Revisions to URN RFCs List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 Apr 2020 02:04:01 -0000 Sorry about not responding to this sooner. Sam DeBord writes: > Documentation: > > Documentation can be found at > I went to this URL, and didn't find any documentation about URNs, although I didn't spend much time on searching. If you intend to have a URN system, it would help to fix a URL that goes directly to where you record comprehensive information about the URNs. This might be a natural extension of your existing Data Dictionary Wiki. I can see a way forward by taking your examples and writing them up as specifications in the wiki: What is the overall structure of reso URNs? What categories do they come in? How are licensee IDs constructed? How are recorder organization and entity IDs constructed? What is the system for constructing URNs for Data Dictionary items? Dale From nobody Mon Apr 27 04:00:07 2020 Return-Path: X-Original-To: urn@ietfa.amsl.com Delivered-To: urn@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C4EB63A0AAF for ; Mon, 27 Apr 2020 04:00:04 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -1.9 X-Spam-Level: X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id hCGbq75FHCtg for ; Mon, 27 Apr 2020 04:00:00 -0700 (PDT) Received: from smtp-out12.electric.net (smtp-out12.electric.net [89.104.206.40]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 9D2C03A0AAE for ; Mon, 27 Apr 2020 04:00:00 -0700 (PDT) Received: from 1jT1US-000668-U5 by out12d.electric.net with emc1-ok (Exim 4.92.3) (envelope-from ) id 1jT1UT-00069e-Tj; Mon, 27 Apr 2020 03:59:57 -0700 Received: by emcmailer; Mon, 27 Apr 2020 03:59:57 -0700 Received: from [92.43.124.147] (helo=deliveryscan.hostedsepo.dk) by out12d.electric.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92.3) (envelope-from ) id 1jT1US-000668-U5; Mon, 27 Apr 2020 03:59:56 -0700 Received: from localhost (unknown [10.72.17.201]) by deliveryscan.hostedsepo.dk (Postfix) with ESMTP id 36F349FAFA; Mon, 27 Apr 2020 12:59:56 +0200 (CEST) Received: from 10.72.17.201 ([10.72.17.201]) by dispatch-outgoing.hostedsepo.dk (JAMES SMTP Server 2.3.2-1) with SMTP ID 145; Mon, 27 Apr 2020 13:00:00 +0200 (CEST) Received: from out12a.electric.net (smtp-out12.electric.net [89.104.206.40]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "electric.net", Issuer "COMODO RSA Domain Validation Secure Server CA" (verified OK)) by outgoing-postscan.hostedsepo.dk (Postfix) with ESMTPS id EA18915A9; Mon, 27 Apr 2020 12:59:55 +0200 (CEST) Received: from 1jT1UR-0006nr-Tr by out12a.electric.net with hostsite:2468467 (Exim 4.92.3) (envelope-from ) id 1jT1UR-0006qX-Vo; Mon, 27 Apr 2020 03:59:55 -0700 Received: by emcmailer; Mon, 27 Apr 2020 03:59:55 -0700 Received: from [92.43.124.46] (helo=pf1.outprescan-mta.hostedsepo.dk) by out12a.electric.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92.3) (envelope-from ) id 1jT1UR-0006nr-Tr; Mon, 27 Apr 2020 03:59:55 -0700 Received: from post.kb.dk (post-03.kb.dk [130.226.226.11]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by pf1.outprescan-mta.hostedsepo.dk (Postfix) with ESMTPS id 965609FB04; Mon, 27 Apr 2020 12:59:54 +0200 (CEST) Received: from EXCH-01.kb.dk (exch-01.kb.dk [10.5.0.111]) by post.kb.dk (Postfix) with ESMTPS id 73CE295A27; Mon, 27 Apr 2020 12:59:54 +0200 (CEST) Received: from EXCH-02.kb.dk (10.5.0.112) by EXCH-01.kb.dk (10.5.0.111) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Mon, 27 Apr 2020 12:59:54 +0200 Received: from EXCH-02.kb.dk ([fe80::b595:1a1f:5666:b29]) by EXCH-02.kb.dk ([fe80::b595:1a1f:5666:b29%7]) with mapi id 15.01.1979.003; Mon, 27 Apr 2020 12:59:54 +0200 From: Eld Zierau To: "Hakala, Juha E" , Peter Saint-Andre , "urn@ietf.org" Thread-Topic: [urn] PWID URN (shortened title) Thread-Index: AdYcfcHybvVQ+txQQCm3roPO2mfVmg== Date: Mon, 27 Apr 2020 10:59:53 +0000 Message-ID: Accept-Language: da-DK, en-US Content-Language: da-DK X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [130.226.229.95] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Outbound-IP: 92.43.124.46 X-Env-From: elzi@kb.dk X-Proto: esmtps X-Revdns: outprescan-mta.hostedsepo.dk X-HELO: pf1.outprescan-mta.hostedsepo.dk X-TLS: TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256 X-Authenticated_ID: X-Virus-Status: Scanned by VirusSMART (c) X-Virus-Status: Scanned by VirusSMART (b) X-PolicySMART: 10573177, 19718497 X-PolicySMART: 10573177, 19718497 X-PolicySMART: 10573177, 19718497 X-PolicySMART: 10573177, 19718497 X-Outbound-IP: 92.43.124.147 X-Env-From: elzi@kb.dk X-Proto: esmtps X-Revdns: deliveryscan.hostedsepo.dk X-HELO: deliveryscan.hostedsepo.dk X-TLS: TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256 X-Authenticated_ID: X-Virus-Status: Scanned by VirusSMART (c) X-Virus-Status: Scanned by VirusSMART (b) Archived-At: Subject: Re: [urn] PWID URN (shortened title) X-BeenThere: urn@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Revisions to URN RFCs List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 27 Apr 2020 11:00:05 -0000 Dear all I hope you are all well wherever you are I have been waiting with this mail due to the many events in the start of t= his year. I really would like to hear if you can accept the PWID URN as it is now. Due to the discussion late last year, I have updated the specification, exp= laining a case where it is very relevant to distinguish between whether it = is a reference to a part or a page: The case where the page source includes= virus. Several web archives deliberately archive contents with virus/malwa= re, e.g. the Danish web archive. The reason is that it should be possible t= o make research on Danish internet as it looked when harvested, and that in= cludes research subjects like what kind of malware that existed. The new specification is send in separate mail in an attachment, just to ma= ke sure that this mail is not caught in a spam filter. Differences between = this version and the last one is listed below. Stay safe Best regards, Eld Differences from last time: =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D page 2:=20 2019-11-14 -> 2020-04-27 page 4: The possibility ... implementations. -> The possibility ... implementations.=20 Furthermore, the precision part can tell whether the referred source=20 is to be viewed as a file or as a web page, which can be essential=20 for web page code (like html) which contain hidden information, e.g.=20 malware. page 7: * 'part' Meaning the single archived file/web part harvested as from the specified URI. For references to web pages with html code (i.e. pages where there is an option to "View page source"), this will mean the actual file with the html code. It is relevant to refer to web pages this way, in case it is part of a collection specification or in case it is the html that is of interest (e.g. java scripts or hidden links that are not visible when rendering the web page). For all other types of files, the URI will be for single files to be interpreted a file. -> * 'part' Meaning the single archived file/web part harvested as from the specified URI. For references to web pages with html code (viewed e.g. by the "View page source" on a web page or using a=20 =09 get-file function), this will mean the actual file comprising=20 =09 the html code. It is relevant to refer to web parts this way,=20 =09 in case it is part of a collection specification or in case it=20 =09 is the html that is of interest. It can be relevant only to=20 =09 view the html code in cases where the referred material is hidden=20 =09 links, java- script or embedded malware. page 8: o precision-spec (part or page): The precision specification specifies how the referred item should be regarded. A typical PWID URN reference in a paper would be 'page', where a tool will be needed to render the web page. Alternatively, the precision-spec can be 'part', which is the most precise reference since it reference a specific file where no additional calculations are needed (e.g. as part of a collection, a specific html file with hidden links or to indicate that a single image is referenced). In order to see whether a viewed browser page is a computed web page or a single file, browsers have a function "View page source" which is not activated if for single files). -> o precision-spec (part or page): The precision specification specifies how the referred item should be regarded. A typical PWID URN reference in a paper would be 'page', where a tool will be needed to render the web page. Alternatively, the precision-spec can be 'part', which is the most precise reference since it reference a specific file where no additional calculations are needed (e.g. as part of a collection, a specific html file with hidden links or malware). In order to=20 see whether a viewed browser page is a computed web page or a=20 single file, browsers have a function "View page source" which is=20 inactive for single files. page 10: o Precision of what is referred The precision contributes to the guidance ... page. If the precision= is 'part', the "View page source" browser function can be used for pages to get the referred resource. If the resource is a single file (this option is not activated, since the full resource is already shown). The part precision can also be indicator for tools (e.g. a collection extraction tool) that they can fetch the contents by fetching the file pointed to. -> The precision contributes to the guidance ... page. If the precision= is 'part', it is the file that is of interest. That means, that it is trivial for web parts that are files themselves, e.g. a PDF document. For web pages, it is the web page code that is of=20 interest. In most cases, the page can be found and the final result can be accessed by us of the "View page source" browser=20 function. However, in cases where the referenced code are of=20 interest because of embedded malware, the resource should instead be access by fetching the contents by some sort of get-file=20 function. The part precision can in this way also be used as=20 indicator for access tools, to indicate whether web pages should=20 be viewed as a web page or as the code for the web page. ----- Eld Zierau Digital Preservation Specialist PhD The Royal Danish Library Digital Cultural Heritage P.O. Box 2149, 1016 Copenhagen K Ph. +45 9132 4690=20 Email: elzi@kb.dk-----Original Message----- From: Eld Zierau=20 Sent: Tuesday, December 10, 2019 2:19 PM To: Hakala, Juha E ; Peter Saint-Andre ; urn@ietf.org Cc: 'Henry S. Thompson' Subject: FW: [urn] new draft 10 - new form (RE: new draft 9 - RE: new urn P= WID draft (7) with corrections) Forgot to reply all - so therefore forwarded Best Regards, Eld -----Origina= l Message----- From: Eld Zierau Sent: Tuesday, December 10, 2019 11:55 AM To: 'Henry S. Thompson' Subject: RE: [urn] new draft 10 - new form (RE: new draft 9 - RE: new urn P= WID draft (7) with corrections) Hi The PWID has been developed in collaboration with digital humanity research= ers (literate and historian), who have requirements for precise and persist= ent references. The precision part is for specification of how precise a re= ference is, and what the purpose with the reference is. It is needed becaus= e of the nature of web material where a web page usually consist of many di= fferent parts that are harvested and archived individually. In the example = of https://www.dr.dk, the differences are: * 'Page': urn:pwid:archive.org:2016-01-22T10:08:23Z:page:https://www.dr.dk is a short hand of the archived version of the harvest of the file http= s://www.dr.dk on 2016-01-22T10:08:23Z=20 together with all the elements (existing in the web archive) needed in = order to render it as a web page in a browser,=20 where the version of the elements is the ones with archiving date close= st to 2016-01-22T10:08:23Z * 'Part': urn:pwid:archive.org:2016-01-22T10:08:23Z:part:https://www.dr.dk is the exact file harvested of the file https://www.dr.dk on 2016-01-22= T10:08:23Z Both references are highly relevant, - 'page' because this is what is neede= d for most referencing purposes today, and part because it can be the code = that is of interest or it can be part of a collection specification (see my= response to Juha 11th of October 2019 15:44). It is two very different things, and therefore it cannot be the same refere= nces. Furthermore, it provides the possibility for digital humanity researc= her to make the precision. Please note that what you say "it's trying to pr= e-judge what someone may want to do with a URI" is NOT the case, it is tell= ing you what the person making the reference want you to see if you use the= reference. If you want to view a web page consisting of different elements, the way to= do that today is by use of a browser and a web archive tool to calculate t= he elements. And yes, there will be differences between browsers, just like= Word documents looks very different depending on version fonts etc. That i= s nothing that a reference can or should solve.=20 Please note, that use of the words "browser" and "View page source" are onl= y used in explanation of how you can assign a PWID and resolve a PWID, and = explanation of what part means for a coded page. There is nothing that sugg= ests, that this is the only way to see it. The explanation/examples are nee= ded, since the PWID is for all, including non-technical persons without kno= wledge of coded web pages and that there are different parts from different= files. So I cannot see that the specification as it is now restrict PWIDs = to URIs "that are supposed to be rendered by browsers", but since we are ta= lking about web material it is likely that this is what the PWID will be us= ed for. Please also note, that both the examples that you give are files and theref= ore there will not be any "View page source" (I don't know whether that is = why you say that "'View Source' is literally unusable", - since its absence= is actually use for determination of the reference as a part) as explained= in the instruction of how to creation a PWID in section "Assignment": "precision-spec (part or page): The precision specification specifies how the referred item should be regarded. A typical PWID URN reference in a paper would be 'page', where a tool will be needed to render the web page. Alternatively, the precision-spec can be 'part', which is the most precise reference since it reference a specific file where no additional calculations are needed (e.g. as part of a collection, a specific html file with hidden links or to indicate that a single image is referenced). In order to see whether a viewed browser page is a computed web page or a single file, browsers have a function "View page source" which is not activated if for single files).=20 Best regards, Eld ----- Eld Zierau Digital Preservation Specialist PhD The Royal Danish Library Digital Cultural Heritage P.O. Box 2149, 1016 Copenhagen K Ph. +45 9132 4690 Email: elzi@kb.dk -----Original Message----- From: Henry S. Thompson Sent: Wednesday, December 4, 2019 3:24 PM To: Eld Zierau Cc: Hakala, Juha E ; Peter Saint-Andre ; urn@ietf.org Subject: Re: [urn] new draft 10 - new form (RE: new draft 9 - RE: new urn P= WID draft (7) with corrections) [resending with a elision of more original text which I didn't directly res= pond to -- please ignore the preceding version] Eld Zierau writes: > Please see my comments below >> -----Original Message----- >> From: Henry S. Thompson >> The fourth constituent of a PWID, the *precision-spec*, now has only=20 >> two possible values, 'part' and 'page', which appear to be attempting=20 >> to distinguish between, respectively, >> >> 1) the representation that is/was retrievable for the archived-uri as >> at the archival-time; > Eld: I guess you mean 'part' here, which in the specification is=20 > described as: > "* 'part' > ... Yes. > And I must admit that I do not see anything that can be interpreted as=20 > representation in this description, so I cannot follow you point here. The relevant RFCs (3986, 7231, 8141) all use "representation" for the actua= l result of a successful retrieval, that is, a message consisting of a medi= a type and an encoded character sequence interpretable with respect to that= media type. That's precisely what you are talking about in defining what = you mean by 'part'. > ... >> 2) a (Content-type conformant?) rendering of that representation >> (with all other digital objects implicated in that rendering >> ... > Eld: I guess you mean 'page' here, which in the specification is describe= d as: > "* 'page' Yes. > ... > So it is up to browser software to tell whether it is something that=20 > is interpreted as a page. > And yes a page is "with all other digital objects implicated in that=20 > rendering (e.g. scripts, stylesheets, icons, graphics, fonts ...)",=20 > where I have used terms that are less technical "parts (display=20 > templates, images etc.)" Precisely. So it's a matter of rendering, or presentation, as implemented = by a browser, or any application appropriate to interpreting the retrieved = representation. But, and again according to the relevant specifications, what you _do_ with= a representation of a resource is a matter for the recipient of that resou= rce, which will be different for different users/uses at different times. = The URI itself has nothing to say about that. So now I can express more succinctly what I was confused about: the *precision-spec* doesn't make sense, it's trying to pre-judge what someone = may want to do with a URI. Insofar as one can state what a PWID identifies, it identifies the archival record maintained by the *archive-domain* for the representation retrieved at the *archival-time* of the state of the resource identified by the *archived-uri*. So, if we construct a PWID with *archive-domain* web.archive.org *archived-uri* https://link.springer.com/article/10.1007/JHEP12(2018)0= 98 *archival-time* 2019-11-18T06:00:21 it identifies such an archival record at the Internet Archive, whose curren= t representation can be retrieved via an HTTP GET request for https://web.archive.org/web/20191118060021/https://link.springer.com/art= icle/10.1007/JHEP12(2018)098 If that GET request is performed using, say, the curl or wget command-line = tools, you will get what you call the 'part' as a file on your local 'disk'= . If that GET request is performed using, say, Chrome or Safari, you will see= a presentation of what you call the 'page' on your screen. >> How does this distinction survive a change of media type? To=20 >> image/png, or application/pdf, or audio/ogg? > Eld: The PWID is for referencing purposes, it is not concerned with=20 > types. The PWID is a reference to something that has been harvested=20 > from the internet and is supposed to be rendered by a browser, - so=20 > this is a concern of the original publisher of the element and the=20 > browser software. URIs are not just for browsers! Surely you don't want to restrict PWIDs to= URIs "that are supposed to be rendered by browsers". All the talk in your= drafts about browsers and "View Source" is at best misleading, and at wors= t suggests that PWIDs are only applicable to a very narrow view of what arc= hives may contain. Consider PWIDs constructed from *archive-domain* web.archive.org *archived-uri* https://media.springernature.com/w306/springer-static/c= over/journal/13130/2018/12.jpg *archival-time* 2019-11-18T05:35:49 and *archive-domain* web.archive.org *archived-uri* https://link.springer.com/content/pdf/10.1007%2FJHEP12%= 282018%29098.pdf *archival-time* 2019-11-18T06:00:05 which identify other archival records at the Internet Archive, whose curren= t representations can be retrieved via an HTTP GET request for https://web.archive.org/web/20191118053549im_/https://media.springernatu= re.com/w306/springer-static/cover/journal/13130/2018/12.jpg and https://web.archive.org/web/20191118060005/https://link.springer.com/con= tent/pdf/10.1007%2FJHEP12%282018%29098.pdf Perfectly useful, but the 'page'/'part' distinction doesn't make any sense = here, and 'View Source' is literally unusable. Your spec would be much shorter, simpler and easier to understand, and its = potential utility much greater, if you removed the *precision-spec* altoget= her, and made more use of the descriptive terminology and its underlying se= mantics as found in the relevant RFCs mentioned above. ht --=20 Henry S. Thompson, School of Informatics, University of Edinburgh 10 Crichton Street, Edinburgh EH8 9AB, SCOTLAND -- (44) 131 650-4440 Fax: (44) 131 650-4587, e-mail: ht@inf.ed.ac.uk URL: http://www.ltg.ed.ac.uk/~ht/ [mail from me _al= ways_ has a .sig like this -- mail without it is forged spam] The University of Edinburgh is a charitable body, registered in Scotland, w= ith registration number SC005336. 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Mon, 27 Apr 2020 13:00:44 +0200 From: Eld Zierau To: "Hakala, Juha E" , Peter Saint-Andre , "urn@ietf.org" Thread-Topic: [urn] PWID URN (shortened title) Thread-Index: AdYcfcHybvVQ+txQQCm3roPO2mfVmgABUOgQ Date: Mon, 27 Apr 2020 11:00:44 +0000 Message-ID: Accept-Language: da-DK, en-US Content-Language: da-DK X-MS-Has-Attach: yes X-MS-TNEF-Correlator: x-originating-ip: [130.226.229.95] Content-Type: multipart/mixed; boundary="_002_b271f7b235ef4eaab3973904e732096bkbdk_" MIME-Version: 1.0 X-Outbound-IP: 92.43.124.46 X-Env-From: elzi@kb.dk X-Proto: esmtps X-Revdns: outprescan-mta.hostedsepo.dk X-HELO: pf2.outprescan-mta.hostedsepo.dk X-TLS: TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256 X-Authenticated_ID: X-Virus-Status: Scanned by VirusSMART (c) X-Virus-Status: Scanned by VirusSMART (b) X-PolicySMART: 10573177, 19718497 X-PolicySMART: 10573177, 19718497 X-PolicySMART: 10573177, 19718497 X-PolicySMART: 10573177, 19718497 X-Outbound-IP: 92.43.124.147 X-Env-From: elzi@kb.dk X-Proto: esmtps X-Revdns: deliveryscan.hostedsepo.dk X-HELO: deliveryscan.hostedsepo.dk X-TLS: TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256 X-Authenticated_ID: X-Virus-Status: Scanned by VirusSMART (c) X-Virus-Status: Scanned by VirusSMART (b) Archived-At: Subject: Re: [urn] PWID URN (shortened title) X-BeenThere: urn@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Revisions to URN RFCs List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 27 Apr 2020 11:00:56 -0000 --_002_b271f7b235ef4eaab3973904e732096bkbdk_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable And here is the attachment Best regards, Eld ----- Eld Zierau Digital Preservation Specialist PhD The Royal Danish Library Digital Cultural Heritage P.O. Box 2149, 1016 Copenhagen K Ph. +45 9132 4690=20 Email: elzi@kb.dk -----Original Message----- From: Eld Zierau=20 Sent: Monday, April 27, 2020 1:00 PM To: 'Hakala, Juha E' ; 'Peter Saint-Andre' ; 'urn@ietf.org' Cc: 'Henry S. Thompson' Subject: RE: [urn] PWID URN (shortened title) Dear all I hope you are all well wherever you are I have been waiting with this mail due to the many events in the start of t= his year. I really would like to hear if you can accept the PWID URN as it is now. Due to the discussion late last year, I have updated the specification, exp= laining a case where it is very relevant to distinguish between whether it = is a reference to a part or a page: The case where the page source includes= virus. Several web archives deliberately archive contents with virus/malwa= re, e.g. the Danish web archive. The reason is that it should be possible t= o make research on Danish internet as it looked when harvested, and that in= cludes research subjects like what kind of malware that existed. The new specification is send in separate mail in an attachment, just to ma= ke sure that this mail is not caught in a spam filter. Differences between = this version and the last one is listed below. Stay safe Best regards, Eld Differences from last time: =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D page 2:=20 2019-11-14 -> 2020-04-27 page 4: The possibility ... implementations. -> The possibility ... implementations.=20 Furthermore, the precision part can tell whether the referred source=20 is to be viewed as a file or as a web page, which can be essential=20 for web page code (like html) which contain hidden information, e.g.=20 malware. page 7: * 'part' Meaning the single archived file/web part harvested as from the specified URI. For references to web pages with html code (i.e. pages where there is an option to "View page source"), this will mean the actual file with the html code. It is relevant to refer to web pages this way, in case it is part of a collection specification or in case it is the html that is of interest (e.g. java scripts or hidden links that are not visible when rendering the web page). For all other types of files, the URI will be for single files to be interpreted a file. -> * 'part' Meaning the single archived file/web part harvested as from the specified URI. For references to web pages with html code (viewed e.g. by the "View page source" on a web page or using a=20 get-file function), this will mean the actual file comprising=20 the html code. It is relevant to refer to web parts this way,=20 in case it is part of a collection specification or in case it=20 is the html that is of interest. It can be relevant only to=20 view the html code in cases where the referred material is hidden=20 links, java- script or embedded malware. page 8: o precision-spec (part or page): The precision specification specifies how the referred item should be regarded. A typical PWID URN reference in a paper would be 'page', where a tool will be needed to render the web page. Alternatively, the precision-spec can be 'part', which is the most precise reference since it reference a specific file where no additional calculations are needed (e.g. as part of a collection, a specific html file with hidden links or to indicate that a single image is referenced). In order to see whether a viewed browser page is a computed web page or a single file, browsers have a function "View page source" which is not activated if for single files). -> o precision-spec (part or page): The precision specification specifies how the referred item should be regarded. A typical PWID URN reference in a paper would be 'page', where a tool will be needed to render the web page. Alternatively, the precision-spec can be 'part', which is the most precise reference since it reference a specific file where no additional calculations are needed (e.g. as part of a collection, a specific html file with hidden links or malware). In order to=20 see whether a viewed browser page is a computed web page or a=20 single file, browsers have a function "View page source" which is=20 inactive for single files. page 10: o Precision of what is referred The precision contributes to the guidance ... page. If the precision= is 'part', the "View page source" browser function can be used for pages to get the referred resource. If the resource is a single file (this option is not activated, since the full resource is already shown). The part precision can also be indicator for tools (e.g. a collection extraction tool) that they can fetch the contents by fetching the file pointed to. -> The precision contributes to the guidance ... page. If the precision= is 'part', it is the file that is of interest. That means, that it is trivial for web parts that are files themselves, e.g. a PDF document. For web pages, it is the web page code that is of=20 interest. In most cases, the page can be found and the final result can be accessed by us of the "View page source" browser=20 function. However, in cases where the referenced code are of=20 interest because of embedded malware, the resource should instead be access by fetching the contents by some sort of get-file=20 function. The part precision can in this way also be used as=20 indicator for access tools, to indicate whether web pages should=20 be viewed as a web page or as the code for the web page. ----- Eld Zierau Digital Preservation Specialist PhD The Royal Danish Library Digital Cultural Heritage P.O. Box 2149, 1016 Copenhagen K Ph. +45 9132 4690 Email: elzi@kb.dk-----Original Message----- From: Eld Zierau Sent: Tuesday, December 10, 2019 2:19 PM To: Hakala, Juha E ; Peter Saint-Andre ; urn@ietf.org Cc: 'Henry S. Thompson' Subject: FW: [urn] new draft 10 - new form (RE: new draft 9 - RE: new urn P= WID draft (7) with corrections) Forgot to reply all - so therefore forwarded Best Regards, Eld -----Origina= l Message----- From: Eld Zierau Sent: Tuesday, December 10, 2019 11:55 AM To: 'Henry S. Thompson' Subject: RE: [urn] new draft 10 - new form (RE: new draft 9 - RE: new urn P= WID draft (7) with corrections) Hi The PWID has been developed in collaboration with digital humanity research= ers (literate and historian), who have requirements for precise and persist= ent references. The precision part is for specification of how precise a re= ference is, and what the purpose with the reference is. It is needed becaus= e of the nature of web material where a web page usually consist of many di= fferent parts that are harvested and archived individually. In the example = of https://www.dr.dk, the differences are: * 'Page': urn:pwid:archive.org:2016-01-22T10:08:23Z:page:https://www.dr.dk is a short hand of the archived version of the harvest of the file http= s://www.dr.dk on 2016-01-22T10:08:23Z=20 together with all the elements (existing in the web archive) needed in = order to render it as a web page in a browser,=20 where the version of the elements is the ones with archiving date close= st to 2016-01-22T10:08:23Z * 'Part': urn:pwid:archive.org:2016-01-22T10:08:23Z:part:https://www.dr.dk is the exact file harvested of the file https://www.dr.dk on 2016-01-22= T10:08:23Z Both references are highly relevant, - 'page' because this is what is neede= d for most referencing purposes today, and part because it can be the code = that is of interest or it can be part of a collection specification (see my= response to Juha 11th of October 2019 15:44). It is two very different things, and therefore it cannot be the same refere= nces. Furthermore, it provides the possibility for digital humanity researc= her to make the precision. Please note that what you say "it's trying to pr= e-judge what someone may want to do with a URI" is NOT the case, it is tell= ing you what the person making the reference want you to see if you use the= reference. If you want to view a web page consisting of different elements, the way to= do that today is by use of a browser and a web archive tool to calculate t= he elements. And yes, there will be differences between browsers, just like= Word documents looks very different depending on version fonts etc. That i= s nothing that a reference can or should solve.=20 Please note, that use of the words "browser" and "View page source" are onl= y used in explanation of how you can assign a PWID and resolve a PWID, and = explanation of what part means for a coded page. There is nothing that sugg= ests, that this is the only way to see it. The explanation/examples are nee= ded, since the PWID is for all, including non-technical persons without kno= wledge of coded web pages and that there are different parts from different= files. So I cannot see that the specification as it is now restrict PWIDs = to URIs "that are supposed to be rendered by browsers", but since we are ta= lking about web material it is likely that this is what the PWID will be us= ed for. Please also note, that both the examples that you give are files and theref= ore there will not be any "View page source" (I don't know whether that is = why you say that "'View Source' is literally unusable", - since its absence= is actually use for determination of the reference as a part) as explained= in the instruction of how to creation a PWID in section "Assignment": "precision-spec (part or page): The precision specification specifies how the referred item should be regarded. A typical PWID URN reference in a paper would be 'page', where a tool will be needed to render the web page. Alternatively, the precision-spec can be 'part', which is the most precise reference since it reference a specific file where no additional calculations are needed (e.g. as part of a collection, a specific html file with hidden links or to indicate that a single image is referenced). In order to see whether a viewed browser page is a computed web page or a single file, browsers have a function "View page source" which is not activated if for single files).=20 Best regards, Eld ----- Eld Zierau Digital Preservation Specialist PhD The Royal Danish Library Digital Cultural Heritage P.O. Box 2149, 1016 Copenhagen K Ph. +45 9132 4690 Email: elzi@kb.dk -----Original Message----- From: Henry S. Thompson Sent: Wednesday, December 4, 2019 3:24 PM To: Eld Zierau Cc: Hakala, Juha E ; Peter Saint-Andre ; urn@ietf.org Subject: Re: [urn] new draft 10 - new form (RE: new draft 9 - RE: new urn P= WID draft (7) with corrections) [resending with a elision of more original text which I didn't directly res= pond to -- please ignore the preceding version] Eld Zierau writes: > Please see my comments below >> -----Original Message----- >> From: Henry S. Thompson >> The fourth constituent of a PWID, the *precision-spec*, now has only=20 >> two possible values, 'part' and 'page', which appear to be attempting=20 >> to distinguish between, respectively, >> >> 1) the representation that is/was retrievable for the archived-uri as >> at the archival-time; > Eld: I guess you mean 'part' here, which in the specification is=20 > described as: > "* 'part' > ... Yes. > And I must admit that I do not see anything that can be interpreted as=20 > representation in this description, so I cannot follow you point here. The relevant RFCs (3986, 7231, 8141) all use "representation" for the actua= l result of a successful retrieval, that is, a message consisting of a medi= a type and an encoded character sequence interpretable with respect to that= media type. That's precisely what you are talking about in defining what = you mean by 'part'. > ... >> 2) a (Content-type conformant?) rendering of that representation >> (with all other digital objects implicated in that rendering >> ... > Eld: I guess you mean 'page' here, which in the specification is describe= d as: > "* 'page' Yes. > ... > So it is up to browser software to tell whether it is something that=20 > is interpreted as a page. > And yes a page is "with all other digital objects implicated in that=20 > rendering (e.g. scripts, stylesheets, icons, graphics, fonts ...)",=20 > where I have used terms that are less technical "parts (display=20 > templates, images etc.)" Precisely. So it's a matter of rendering, or presentation, as implemented = by a browser, or any application appropriate to interpreting the retrieved = representation. But, and again according to the relevant specifications, what you _do_ with= a representation of a resource is a matter for the recipient of that resou= rce, which will be different for different users/uses at different times. = The URI itself has nothing to say about that. So now I can express more succinctly what I was confused about: the *precision-spec* doesn't make sense, it's trying to pre-judge what someone = may want to do with a URI. Insofar as one can state what a PWID identifies, it identifies the archival record maintained by the *archive-domain* for the representation retrieved at the *archival-time* of the state of the resource identified by the *archived-uri*. So, if we construct a PWID with *archive-domain* web.archive.org *archived-uri* https://link.springer.com/article/10.1007/JHEP12(2018)0= 98 *archival-time* 2019-11-18T06:00:21 it identifies such an archival record at the Internet Archive, whose curren= t representation can be retrieved via an HTTP GET request for https://web.archive.org/web/20191118060021/https://link.springer.com/art= icle/10.1007/JHEP12(2018)098 If that GET request is performed using, say, the curl or wget command-line = tools, you will get what you call the 'part' as a file on your local 'disk'= . If that GET request is performed using, say, Chrome or Safari, you will see= a presentation of what you call the 'page' on your screen. >> How does this distinction survive a change of media type? To=20 >> image/png, or application/pdf, or audio/ogg? > Eld: The PWID is for referencing purposes, it is not concerned with=20 > types. The PWID is a reference to something that has been harvested=20 > from the internet and is supposed to be rendered by a browser, - so=20 > this is a concern of the original publisher of the element and the=20 > browser software. URIs are not just for browsers! Surely you don't want to restrict PWIDs to= URIs "that are supposed to be rendered by browsers". All the talk in your= drafts about browsers and "View Source" is at best misleading, and at wors= t suggests that PWIDs are only applicable to a very narrow view of what arc= hives may contain. Consider PWIDs constructed from *archive-domain* web.archive.org *archived-uri* https://media.springernature.com/w306/springer-static/c= over/journal/13130/2018/12.jpg *archival-time* 2019-11-18T05:35:49 and *archive-domain* web.archive.org *archived-uri* https://link.springer.com/content/pdf/10.1007%2FJHEP12%= 282018%29098.pdf *archival-time* 2019-11-18T06:00:05 which identify other archival records at the Internet Archive, whose curren= t representations can be retrieved via an HTTP GET request for https://web.archive.org/web/20191118053549im_/https://media.springernatu= re.com/w306/springer-static/cover/journal/13130/2018/12.jpg and https://web.archive.org/web/20191118060005/https://link.springer.com/con= tent/pdf/10.1007%2FJHEP12%282018%29098.pdf Perfectly useful, but the 'page'/'part' distinction doesn't make any sense = here, and 'View Source' is literally unusable. Your spec would be much shorter, simpler and easier to understand, and its = potential utility much greater, if you removed the *precision-spec* altoget= her, and made more use of the descriptive terminology and its underlying se= mantics as found in the relevant RFCs mentioned above. ht --=20 Henry S. Thompson, School of Informatics, University of Edinburgh 10 Crichton Street, Edinburgh EH8 9AB, SCOTLAND -- (44) 131 650-4440 Fax: (44) 131 650-4587, e-mail: ht@inf.ed.ac.uk URL: http://www.ltg.ed.ac.uk/~ht/ [mail from me _al= ways_ has a .sig like this -- mail without it is forged spam] The University of Edinburgh is a charitable body, registered in Scotland, w= ith registration number SC005336. --_002_b271f7b235ef4eaab3973904e732096bkbdk_ Content-Type: text/plain; name="pwid-urn-specification-1.txt" Content-Description: pwid-urn-specification-1.txt Content-Disposition: attachment; filename="pwid-urn-specification-1.txt"; size=37916; creation-date="Tue, 21 Apr 2020 13:55:26 GMT"; modification-date="Mon, 27 Apr 2020 10:12:53 GMT" Content-Transfer-Encoding: base64 CgoKCgoKCiAgICAgICAgICAgIEEgUGVyc2lzdGVudCBXZWIgSURlbnRpZmllciAoUFdJRCkgVVJO IE5hbWVzcGFjZQogICAgICAgICAgICAgICAgICAgICAgICBwd2lkLXVybi1zcGVjaWZpY2F0aW9u 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