> **THE READING PLAQUE.** *The Double Hinge, held*, draft 0.2 — **made readable on the SX
> surface by its covering persona's reading grant; a draft, not the published form.** The
> grant stands by the operator's word (2026-09-16), verbatim: "ok - now do the same for the double hinge."
> Covering: **starl3n** · endorsing: **Link Digital** (the standing pair). The Foundations
> · 13: the thirteenth reading of the foundations series — an experiment of the
> observatory node, held on this node. The construction record stands in the open
> workshop at [/sx/workshop/the-double-hinge-held](/sx/workshop/the-double-hinge-held);
> the experiment's own door, [opendata.ai/double-hinge](https://opendata.ai/double-hinge),
> wears the word *grown · held* and links back here while this grant stands. Reading is
> free; the way across is a statement of intent ([/sx/matters](/sx/matters)). This file's
> sha256 is pinned in the reading register.