Persistent hypothes.is annotation after migrating pages

[bulbil]

I'm moving this issue here over from Ed1:

Thought you might be interested to know that, after chatting with the Hypothes.is folks and perusing this post on how Hypothes.is interacts with document metadata, I was able to "migrate" Hypothes.is annotations as I migrated my Ed instance to a new server.

I modified the _include/head.html to include DC metadata using Dublin Core tags with name attributes in addition to the Zotero-friendly property attributes. I also included a few site wide entries in _config.yml. As a result Hypothes.is associates annotations with a urn:x-dc: string rather than the URL.

If it sounds useful to other users, happy to issue a pull request.

[bulbil]

AFIK, hypothes.is parses Dublin Core meta tags with a name attribute as opposed to property attribute.

After adding the following block to _includes/head.html I was able to see hypothes.is annotations migrate along with the page even though the URL changed.

I am under the impression only dc.identifier and dc.relation.ispartof are necessary for this functionality.

{% if site.dc %}
  <!-- Dublin Core metadata for hypothes.is -->
  <meta name="dc.title" content="{{ page.title }}" />
  <meta name="dc.creator" content="{% if page.author %}{{ page.author }}{% else %}{{ site.author.name }}{% endif %}" />
  {% if page.editor %}<meta name="dc.contributor" content="{{ page.editor }}" />{% endif %}
  {% if page.publication-date %}<meta name="dc.date" content="{{ page.publication-date }}" />{% endif %}
  {% if page.rights %}<meta name="dc.rights" content="{{ page.rights }}" />{% endif %}
  <meta name="dc.source" content='{% if page.source %}{{ page.source | escape_once }}{% else %}{{ site.title }}{% endif %}' />
  <meta name="dc.format" content="{% if page.dc.format %}{{ page.dc.format }}{% else %}{{ site.dc.format }}{% endif %}" />
  <meta name="dc.language" content="{% if page.dc.language %}{{ page.dc.language }}{% else %}{{ site.dc.language }}{% endif %}" />
  <meta name="dc.identifier" content="{{ resource_url }}" />
  <meta name="dc.relation.ispartof" content="{{ site.dc.relation_ispartof }}" />
{% endif %}

Here's the head.html include in question.