v0.1.0 — the trust layer, extracted

First tagged release: the receipt spec (v0.1), the ledger trust math (per-class windows, pin exclusion), merged-only scoring, the same-PR pin classifier, the sb CLI, and the GitHub Action — extracted from a year of operation inside the reference deployment, where our own agents attacked the ledger twice and the founding incident documents the catch with reproduce commands.

Install: pip install signalbrain (live on PyPI) · Try it: bash demo/demo.sh · Fork the demo: receipt-gate-demo

Suite: 49 passed / 12 skipped (reference-deployment context). Apache-2.0.