Proving Ground

Status: live public repo, deploy-ready (vercel --prod). Seeded from the internal audit trail at portfolio/programs/2026-07-16-fable-window/T6-proving-ground/LEDGER.md (private vault — that copy is the historical record of how each row was decided; this repo is now the canonical public copy going forward).

A public, falsifiable record of claims we make about our own products, each backed by executed evidence — a touchstone dossier, a pre-registered eval with a p-value, or a machine-verification count re-derivable from a named artifact. It is legally clean self-attestation (we only attest to our own claims), an FTC-substantiation defense file, an insurance file, and the distribution brand every launch inherits.

The ledger content (8 rows + 3 pending rows) lives directly in index.html here. New rows get added to this repo going forward — it is the source of truth, not a mirror.

The one rule

A claim enters this ledger only with evidence a third party can re-derive without trusting us. No claim rests on model assertion. Same doctrine as touchstone/dossier@0: absence of proof is UNVERIFIABLE, never a pass. A claim we can't yet substantiate is listed as PENDING — naming the gap is itself the discipline.

How a launch inherits this

Every product launch cites the ledger row(s) that substantiate its public claims, and adds its own claims as new rows with evidence attached. A claim in launch copy with no ledger row is a bug — the copy overclaims. This is the FTC-substantiation posture made mechanical: we can show the executed evidence for every superlative we ship.

This directory

• index.html — the whole site. Single file, no build step, no framework.

• vercel.json — static deploy config. One command away once a repo/domain exists:

  vercel --prod

• LEDGER.md (T6 folder, linked above) — the authored source. Update it there; port new rows into index.html verbatim when the ledger changes.