New note: Profile hydration

content/notes/profile-hydration.md

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+---
+title: "Profile hydration"
+date: 2022-10-26T17:31:44-07:00
+replyURI: "https://discuss.coding.social/t/idea-fediverse-profile-ui-component-fed-by-keyoxide-back-end-service/144"
+replyTitle: "Idea: Fediverse Profile UI component fed by Keyoxide back-end service"
+replyType: "DiscussionForumPosting"
+replyAuthor: "Arnold Schrijver"
+replyAuthorURI: "https://mastodon.social/@humanetech"
+---
+
+Many open standards can support profile hydration:
+
+Ariadne
+: map an email identifier to supported verified accounts.
+
+The IndieWeb
+: map a webpage with `h-card` to any account, with less-robust reciprocal-link verification.
+
+WebFinger
+: map an email-like identifier (an `acct:` URI) to a list of links.
+
+vCard
+: upload a vCard containing profile information, possibly with "share contact".
+
+I think `h-card`-based hydration is the best place to start. We can later add support for more options:
+
+- Keyoxide profiles already contain `h-card` microformats, so we get that for free.
+- `h-card` microformats can have `u-key` properties, potentially triggering an Ariadne-based verification of accounts enumerated by the `h-card`.
+- `h-card` can map to vCard4
+
+Depending on how [keyoxide-web issue 141](https://codeberg.org/keyoxide/keyoxide-web/issues/141) goes, WebFinger could also indirectly give Keyoxide support.