Twenty-one pieces crossed the PAZ Kaffi desk this week, and one question ran underneath most of them: when a system does the work, can you still reconstruct who decided, and on what evidence? That is the Ontologist’s only question, and W30 kept asking it back.

←TODAY: In July 2026 an office can delegate a drawing to a model it cannot name and cannot re-run. →3012: By the Zurich-3012 horizon, an unsourced output is inadmissible the way an unsigned drawing is today. Fulcrum: Provenance is cheap to add now and impossible to reconstruct later — the pin costs a line, the missing pin costs the claim.

Top stories

Top stories: The week led with agency at the model surface. The Building Would Like a Word: PAZGPT Comes to Archicad (score 95) put a natural-language layer on a BIM model and, with it, the sharpest governance question of the seven days — a prompt can now edit geometry, so which operations may run unattended and which always need a human on the commit? The honest answer is a policy you write before anyone types, not after.

Second, provenance became infrastructure. NVIDIA’s Open weights are a provenance instrument (650 open models, 250 datasets, each with a hash, a licence and a card) and Thinking Machines’ Inkling fine-tune piece (a calibrated 975B open-weights base) said the same thing from two directions: the scarce asset is no longer the model, it is your labelled data and your ability to cite the exact checkpoint that drew the deliverable. Add a model-id-plus-revision-sha row to the BEP appendix, or discover the gap during a claim.

Third, Switzerland shipped physics. EPFL and CSEM’s 30.02% triple-junction perovskite-silicon cell (score 95) and PSI’s 80°C mild-sinter solid-state battery at 1,500 cycles are both real milestones — and both still lab coupons, a square centimetre and a button cell. The discipline is identical: demand IEC 61215 ageing data and a stated depth-of-discharge before either number touches a spec.

Fourth, circularity got a joint-level definition. A Building That Cannot Be Un-Built Is Already Waste (score 95) reframed recovery as a property of the connection, not the material — bolted, clipped, bonded or cast-in — and asked the reader to record it now, in a mandatory disassembly property, so the LOIN survives the project team.

Signal vs. noise

Signal vs. noise: The genuinely new was small and hard: EPFL/CSEM’s certified cell, PSI’s sintering recipe, and the Haute-Sorne EGS well that logged M0.3 under an inhabited Jura valley because its traffic-light thresholds were dense and honest. The noise was the usual anthropomorphism — “agent” language draped over what The Immune System Never Ran an Agent correctly called a logged, deterministic workflow. An orchestrator that persists every run beats an agent that decides for you, because the record, not the intelligence, is the advantage.

Hidden gem

Hidden gem: The Swiss timetable is a constraint solver in a trench coat (score 95) deserved more attention than a transit story usually gets. Swiss punctuality is not culture; it is a solved Periodic Event Scheduling Problem, constraints encoded at design time so a delay has nowhere to cascade. The same modular-arithmetic check that spaces trains will space your concrete trucks, crane lifts and server jobs — a rare piece that hands a working office a transferable method rather than an anecdote.

Hack: Freeze the exact model that drew tonight’s deliverable, so 2031 can re-run it. Provenance is not a promise, it is a hash you can recompute. On any checkpoint or config you shipped this week:

sha256sum model.safetensors config.json > MODEL.lock
git add MODEL.lock && git commit -m "pin model provenance"
# later, to verify nothing drifted:
sha256sum -c MODEL.lock

The -c check either prints OK or names the file that changed. That one line is the difference between citing your model and guessing at it during a dispute.

Looking ahead

Looking ahead: Watch whether the open-weights provenance thread hardens into procurement language — the first BEP that requires a revision-sha per AI deliverable sets the precedent. Watch the EPFL/CSEM cell for an independently certified module, not a coupon. And keep one eye on whether “agent” quietly gives way to “logged workflow” as offices learn that the record is the product.