diff --git a/docs/standards/v0.3.3-working-doc.md b/docs/standards/v0.3.3-working-doc.md
index 5475e4cc..26d72da3 100644
--- a/docs/standards/v0.3.3-working-doc.md
+++ b/docs/standards/v0.3.3-working-doc.md
@@ -78,6 +78,7 @@ Byte-match conformance matrix across CTEF + APS + AIM + Hippo + Envoys for the c
 | Hippo `hippo-rfc9421` 3 vectors | TBD | TBD | TBD | ✓ canonical publisher (3/3) | TBD |
 | Envoys `envoys-rfc9421` (jschoemaker) — **9 vectors (6 positive + 3 negative) live at `jschoemaker/Envoys-public`, pinned to v1.5 against RFC 8032 §7.1 keypair** | TBD | TBD | TBD | TBD | ✓ canonical publisher (9/9) |
 | A2A #1496 negative-path 4 vectors (when scaffolded) | TBD | TBD | TBD | TBD | TBD |
+| `argentum-core` [`near-miss-v1`](https://github.com/giskard09/argentum-core/tree/main/examples/conformance/near-miss-v1) — **3 negative-path vectors** (`ambiguous_issuer_binding`, `rescoped_replay`, `semantic_drift`); AEOESS byte-verified in A2A #1734; Nobulex 5/5 co-signed 2026-05-28 | ✓ canonical publisher (3/3) | TBD | TBD | TBD | TBD |
 
 ```
 TODO(v0.3.3): each TBD cell becomes a row in the cross-extension fixture