{
  "version": "https://jsonfeed.org/version/1.1",
  "title": "chem-bla-ics",
  "description": "Chemblaics (pronounced chem-bla-ics) is the science that uses open science and computers to solve problems in chemistry, biochemistry and related fields.",
  "home_page_url": "https://chem-bla-ics.linkedchemistry.info/",
  "feed_url": "https://chem-bla-ics.linkedchemistry.info/2025/04/13/updating-links-to-blogs-peter-murray-rust.json",
  "icon": "https://chem-bla-ics.linkedchemistry.info/assets/images/chem-bla-ics_logo.png",
  "language": "en",
  "authors": [
    {
      "name": "Egon Willighagen",
      "url": "https://orcid.org/0000-0001-7542-0286",
      "_orcid": "0000-0001-7542-0286"
    }
  ],
  "items": [

    {
      "id": "https://doi.org/10.59350/mxfta-p1k55",
      "url": "https://chem-bla-ics.linkedchemistry.info/2025/04/13/updating-links-to-blogs-peter-murray-rust.html",
      "title": "Updating links to blogs: Peter Murray-Rust",
      "content_html": "<p>One reason to <a href=\"https://chem-bla-ics.linkedchemistry.info/2023/07/27/archiving-and-updating-my-blog.html\">move my blog</a>\nfrom Blogger to a git-backed repository is that I can update links but that the version history shows exactly what\nchange was made. I have been using three icons: when I can find a new URL for the website, I use <i class=\"fa-solid fa-recycle fa-xs\"></i>;\nwhen I cannot find a new URL, but the old URL is in the <a href=\"https://web.archive.org/\">Internet Archive</a>,\nI use a <i class=\"fa-solid fa-box-archive fa-xs\"></i>;\nfinally, if I cannot find anything to replace the broken link, I use <i class=\"fa-solid fa-link-slash fa-xs\"></i>.\nFor example, the blog of Rich Apodaca is <a href=\"https://chem-bla-ics.linkedchemistry.info/2024/12/27/archiving_blogs.html\">now archived</a>,\nand I have been updating the many links to his (still running) blog to use DOI links. That has the added benefit\nof <a href=\"https://chem-bla-ics.linkedchemistry.info/2024/12/30/fair-blog-to-blog-citations.html\">making blog-to-blog citations more FAIR</a>.</p>\n\n<p>Now, another blog I link to a lot, is the blog by Peter Murray-Rust, which has run at various URLs, including\n<a href=\"http://wwmm.ch.cam.ac.uk/blogs/murrayrust/\">http://wwmm.ch.cam.ac.uk/blogs/murrayrust/</a> and now at\n<a href=\"https://blogs.ch.cam.ac.uk/pmr/\">https://blogs.ch.cam.ac.uk/pmr/</a>. My posts on Blogger have a lot of links\nto the <code class=\"language-plaintext highlighter-rouge\">wwmm.ch.cam.ac.uk</code> domain, e.g. <code class=\"language-plaintext highlighter-rouge\">http://wwmm.ch.cam.ac.uk/blogs/murrayrust/?p=845</code>. The problem  <!-- keep link -->\nwith these URLs is that they do not get properly rewritten and all point to a <em>European copyright: Cancel Articles 3, 11 and 13</em>\npost from 2018.</p>\n\n<p>But here too, the Internet Archive is helping. It gives me the opportunity to find what <code class=\"language-plaintext highlighter-rouge\">p=845</code> pointed too.\nNow, not all blog posts are archived and therefore sometimes need to figure out which posts it was using archived\nposts just before or after the post I linked too. Of course, this only works because Peter’s blog is still online\nwith all posts. First step is to list all pages using the old URL pattern in the archive, e.g. with\n<code class=\"language-plaintext highlighter-rouge\">https://web.archive.org/web/*/http://wwmm.ch.cam.ac.uk/blogs/murrayrust/*</code>. <!-- keep link -->\nHere, the first <code class=\"language-plaintext highlighter-rouge\">*</code> indicates <code class=\"language-plaintext highlighter-rouge\">any date</code>, while the second <code class=\"language-plaintext highlighter-rouge\">*</code> indicates <code class=\"language-plaintext highlighter-rouge\">any URL that started with the preceding</code>.</p>\n\n<p>This gives <a href=\"https://web.archive.org/web/*/http://wwmm.ch.cam.ac.uk/blogs/murrayrust/*\">a list of 1233 posts</a>, <!-- keep link -->\nwhich you can filter with the text box on the top right of the list, where I filtered\nhere for URLs with <code class=\"language-plaintext highlighter-rouge\">p=</code>:</p>\n\n<p><img src=\"/assets/images/pmr_internet_archive.png\" alt=\"\" /></p>\n\n<p>However, if the blog post I am looking for is listed, it does not mean it actually has been archived. In the above\nscreenshot, note the <code class=\"language-plaintext highlighter-rouge\">From</code> column, and that date needs to be from before the <code class=\"language-plaintext highlighter-rouge\">wwmm.ch.cam.ac.uk</code> stopped being\nused. For example, the following post has an Internet Archive, but after the move and the original content is\nnot visible, but a redirect message instead, here visible as a green date:</p>\n\n<p><img src=\"/assets/images/pmr_no_luck.png\" alt=\"\" /></p>\n\n<p>This way, I have been able to update various links already, not with a DOI and blog-to-blog citation as for\nRich’s blog, but just with an updated link so that readers of these older posts actually end up on\nthe post I originally linked to, such as\n<a href=\"https://github.com/egonw/blog2/commit/d4c5e02c725ba799609e643f46389ea3b5266f6c#diff-863da47bd5bf4b33d3701c737854d2b3cd30a1802abaa225c78acac72d6d6f83L36-R38\">here</a>:</p>\n\n<p><img src=\"/assets/images/pmr_update.png\" alt=\"\" /></p>",
      "summary": "One reason to move my blog from Blogger to a git-backed repository is that I can update links but that the version history shows exactly what change was made. I have been using three icons: when I can find a new URL for the website, I use ; when I cannot find a new URL, but the old URL is in the Internet Archive, I use a ; finally, if I cannot find anything to replace the broken link, I use . For example, the blog of Rich Apodaca is now archived, and I have been updating the many links to his (still running) blog to use DOI links. That has the added benefit of making blog-to-blog citations more FAIR.",
      "image": "https://chem-bla-ics.linkedchemistry.info/assets/images/pmr_internet_archive.png",
      "date_published": "2025-04-13T00:00:00+00:00",
      "date_modified": "2025-04-13T00:00:00+00:00",
      "tags": ["blog"],
      
      
      
      
      
      
        "authors": [ { "name": "Egon Willighagen", "url": "https://orcid.org/0000-0001-7542-0286" } ]
      
    }

  ]
}