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Envelope — secure message relationship map

A warm paper diagram explaining sender, recipient and message relationships with key and envelope glyphs and clear conceptual boundaries.

S studioUpdated Oct 5, 2026Revision 1
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LIVE PREVIEW Isolated & interactive
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User-owned project inspected locally: midnight diagram canvas, device nodes, colored spline cables, direction and load controls.
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User-owned project inspected locally: pale green dotted canvases, circular icon nodes, labeled trust and signing relationships, vertical mobile diagrams.
Illustrative sample content and data; no real accounts, payments, reservations or messages. -->
<main class="style-clay">
  <header>
    <b>ENVELOPE / EXPLAINER</b><span>MAKE THE INVISIBLE UNDERSTANDABLE</span
    ><small>ILLUSTRATIVE DATA</small>
  </header>
  <section class="diagram-title">
    <div>
      <small>IDENTITIES / MESSAGE / RECIPIENT</small>
      <h1>A message, with a chain of context.</h1>
      <p>
        A conceptual message workflow. Key inputs are shown separately from the message and its
        recipient.
      </p>
    </div>
    <div class="diagram-actions">
      <button id="change">Follow the message</button><button id="layout">Change layout</button
      ><button id="reset">Reset</button>
    </div>
  </section>
  <section class="canvas">
    <div class="canvas-head">
      <span id="canvas-label">MESSAGE RELATIONSHIPS / CONCEPTUAL VIEW</span
      ><span>5 NODES / 4 CONNECTIONS</span>
    </div>
    <svg
      id="chart"
      viewBox="0 0 800 350"
      role="group"
      aria-label="A message, with a chain of context.. Select nodes or move them with arrow keys."
    ></svg>
    <div class="inspector">
      <b id="selected-title">Select a node</b
      ><span id="selected-info"
        >Inspect its role and connections. Drag a node, or focus it and use arrow keys.</span
      ><small>LOCAL INTERACTIVE DIAGRAM</small>
    </div>
  </section>
  <div class="legend">
    <span><i></i>Identity inputs</span><span><i></i>Message content</span
    ><span><i></i>Recipient output</span>
  </div>
  <output data-status aria-live="polite"></output>
  <details>
    <summary>View the relationship data</summary>
    <table>
      <thead>
        <tr>
          <th>FROM</th>
          <th>TO</th>
          <th>RELATIONSHIP</th>
        </tr>
      </thead>
      <tbody>
        <tr>
          <td>Sender identity</td>
          <td>Message package</td>
          <td>signing input</td>
        </tr>
        <tr>
          <td>Message</td>
          <td>Message package</td>
          <td>content</td>
        </tr>
        <tr>
          <td>Recipient key</td>
          <td>Message package</td>
          <td>recipient input</td>
        </tr>
        <tr>
          <td>Message package</td>
          <td>Recipient</td>
          <td>deliver</td>
        </tr>
      </tbody>
    </table>
  </details>
  <footer class="demo-note">Fictional brand · local interface demo · no information is sent</footer>
</main>
Revision history · 1 versions
v12026-10-05 18:26:30 UTC

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