3d4f461eabe8f784908ce3f2eea7b776915cf49d90c7b00734a18c9cee39a7b8
VerifyPhi — Design Verification Pipeline for Optical Circuit Substrates
Publicly online since 2010 · U.S. patent applications since 2012 · inventions offered since 2014. The work of Christopher Gabriel Brown, independently documented.
VerifyPhi is the design-verification pipeline that decides whether a chip design is allowed to reach any writable optical circuit substrate. It is the software half of the WritePhi platform — the switch-level simulator, the compile-time verification gate, the self-authenticating writable-medium architecture, the pre-dice wafer probe pattern, and the iteration loop that ties them together.
WritePhi is the writer. VerifyPhi is what refuses to feed it an unverified design.
Patent-pending.
USPTO non-provisional utility application 19/731,098,
Confirmation 5973, Patent Center 78285110. Filed 2026-07-05.
Title of Invention: Verification-Gated Compile-and-Optical-Write Pipeline for Photolithographic Circuit Substrates.
15 claims. 6 figures.
What's in the deliverable
- VERIFYPHI-SIM — switch-level CMOS simulator, stdlib Python 3.10+, no pip dependencies.
- VERIFYPHI-GATE — compile-time verification gate that refuses to emit the writable payload if any testbench assertion fails.
- VERIFYPHI-MEDIUM — self-authenticating writable optical medium architecture with SHA-256 manifest and executable verifier.
- VERIFYPHI-PROBE — pre-dice wafer probe pattern geometry with pad-link routing to a common outer test ring, sized to BDXL 120 mm.
- VERIFYPHI-LOOP — automated design → simulate → virtual burn → study → real burn iteration driver.
- Seven reference simulator-verified IC designs (INVERT-01, INVERT-02, COUNTER-01, UART-01, PWM-01, SPI-DAC-01, AES-CORE) with source, spec, byte-stream, and rendered die floorplans.
- Full copy of the as-filed USPTO 19/731,098 disclosure — DISCLOSURE.md, USPTO-formatted DOCX, SHA-256 timestamp anchor, and the 6 patent figures.
- Wafer floorplan renderer + print-ready 120 mm PDF label for Primera Bravo / PTPublisher disc publishing.
- Buyer-side bring-up playbook and honest engineering-status report.
What it caught, in the session that filed the patent
On the day the patent was filed, the pipeline ran end-to-end against seven reference dies. It caught two real chip-design bugs before either could reach the physical write channel:
- Dangling FET sources in a stub toggle-flop (a documented placeholder that would have quietly emitted a dead netlist).
- A ripple counter clocked on the wrong edge polarity (would have produced Gray-code-adjacent output instead of binary UP count).
Both bugs were fixed in the same session. The rebuilt designs pass 20/20 gate assertions and 12/12 counter-cycle assertions. This is what VerifyPhi does — every day, every design, before any write.
Priority chain
Priority anchors run to Christopher Brown's 2017 printed publication Invent Depositions (ISBN 978-1-979767-89-7) and the 2018-2019 buyinvent.com catalog entries covering the writer language, the optically-written blank, and the software-driven registration of acceptable circuit-driven operations. The 2026-05-30 portfolio-wide framework filing 19/693,405 and the 2026-07-05 non-provisional utility filing 19/731,098 close the chain.
Terms
- Price: $25,000,000 USD.
- USA-only sale. USD-only payment.
- Email + postal-mail delivery. No online license portals — because there are no licenses to portal-manage.
- Term Sheet at $10k+ tier — wire transfer or escrow, signed PDF.
- No IP is conveyed. Ever. All patents, patent applications, copyrights, trade secrets, know-how, and other intellectual property are retained in full by the inventor. Buyer receives artifacts (documents, source code, compiled outputs, physical media). No patent license, no use license, no sublicense, no right to build, no right to fabricate, no right to sell, no right to distribute. Any use of the underlying inventions requires separate written agreement negotiated independently of this deliverable sale.
- Buyer bankruptcy shield: this sale conveys artifacts, not IP; a Buyer bankruptcy has nothing to convey to the trustee beyond the artifacts already delivered. Seller has not filed for bankruptcy.
- Included in the All-In-One bundle at no additional charge.