diff --git a/README.md b/README.md
index d14be2d..13cc0b2 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # GKOS-Engine
 
+**Owner-fork work:** [EU AI evidence demonstration — shared phases and status](https://github.com/mariusTalpos/gkos-standard/blob/planning/eu-ai-evidence/docs/eu-ai-evidence/PHASES.md). The Standard fork hosts the single tracker for both repositories.
+
 Operator settings: [complete settings reference](docs/SETTINGS.md) and [all TOML coordinates](docs/SETTINGS-TOML.md). Run `gkx settings --runtime desktop --json` to distinguish configuration wiring from runtime readiness. Integration/remaining-work tracker: [#36](https://github.com/Odenknight/GKOS-Engine/issues/36).
 
 Turn a folder of Markdown into a dependable knowledge map—locally,
diff --git a/examples/eu-ai-evidence/p1-observer.mjs b/examples/eu-ai-evidence/p1-observer.mjs
new file mode 100644
index 0000000..4cf66cf
--- /dev/null
+++ b/examples/eu-ai-evidence/p1-observer.mjs
@@ -0,0 +1,18 @@
+/** Informative P1.1 observer. No expectations, selection rules, or verdicts. */
+import { buildGraph, ENGINE_NAME, ENGINE_VERSION } from '../../dist/gkos-engine.mjs';
+
+export function observeDossierSnapshot({ records, now }) {
+  if (!Array.isArray(records) || !Number.isFinite(now)) {
+    throw new TypeError('records and a finite fixed observation time are required');
+  }
+  for (const record of records) {
+    if (typeof record.relativePath !== 'string' || typeof record.content !== 'string'
+        || !Number.isFinite(record.createdTime) || !Number.isFinite(record.modifiedTime)) {
+      throw new TypeError('Each record requires a path, content, and explicit source times');
+    }
+  }
+  return {
+    engine: { name: ENGINE_NAME, version: ENGINE_VERSION },
+    graph: buildGraph(records, [], now),
+  };
+}
diff --git a/test/eu-ai-p1-observer.test.mjs b/test/eu-ai-p1-observer.test.mjs
new file mode 100644
index 0000000..5f9fb01
--- /dev/null
+++ b/test/eu-ai-p1-observer.test.mjs
@@ -0,0 +1,38 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { observeDossierSnapshot } from '../examples/eu-ai-evidence/p1-observer.mjs';
+
+const uid1 = '719823a1-5299-48ba-89e0-6771f6fbbba1';
+const uid2 = '719823a1-5299-48ba-89e0-6771f6fbbba2';
+const source = (uid, path, at, predecessor) => Object.freeze({
+  relativePath: path,
+  createdTime: Date.parse(at), modifiedTime: Date.parse(at),
+  content: `---\ngkx_version: "2.0"\nuid: "${uid}"\ntitle: "${path}"\ntype: semantic\ncreated_at: "${at}"\ntimestamp: "${at}"\nepistemic_state: reported\nsensitivity: public\nauthorship_origin: authored\n${predecessor ? `supersedes:\n  - "${predecessor}"\n` : ''}---\nFictional observer test.\n`,
+});
+
+test('P1 observer exposes actual UID resolution and one-sided lineage without changing input', () => {
+  const at = '2026-08-02T10:00:00.000Z';
+  const records = Object.freeze([
+    source(uid1, 'one.md', '2026-08-01T10:00:00.000Z'),
+    source(uid2, 'two.md', at, uid1),
+  ]);
+  const before = JSON.stringify(records);
+  const result = observeDossierSnapshot({ records, now: Date.parse('2026-08-03T12:00:00Z') });
+  const first = result.graph.nodes.find(n => n.id === result.graph.gkxUidIndex[uid1]);
+  const second = result.graph.nodes.find(n => n.id === result.graph.gkxUidIndex[uid2]);
+  assert.deepEqual(first.gkx.supersededByIds, [second.id]);
+  assert.deepEqual(second.gkx.supersedesIds, [first.id]);
+  assert.equal(first.gkx.invalidAt, at);
+  assert.equal(first.gkx.head, false);
+  assert.equal(second.gkx.head, true);
+  assert.equal(first.gkx.projection.authored.uid, uid1);
+  assert.equal(JSON.stringify(records), before);
+  assert.equal('pass' in result, false);
+  assert.equal('selection' in result, false);
+});
+
+test('P1 observer rejects unavailable input instead of fabricating an observation', () => {
+  assert.throws(() => observeDossierSnapshot({ records: null, now: 1 }), TypeError);
+  assert.throws(() => observeDossierSnapshot({ records: [], now: NaN }), TypeError);
+  assert.throws(() => observeDossierSnapshot({ records: [{ relativePath: 'missing.md' }], now: 1 }), TypeError);
+});