NPA / Certificate-first proof checking

Suomi: NPA: expose the proof evidence boundary before trusting a result.

Suomi: This page reconstructs the NPA section from Math Lab as an independent evidence page: public status, trust model, proof pipeline, claim register, repositories, sources, and explicit non-replacement language.

Suomi: Inspect the trust boundary Suomi: Open GitHub repository

Julkinen tila: Tutkimusrepository; Suomi: Shown as research and implementation, not as a production assurance service.
Julkinen uudelleentarkistus: 2026-07-02 / NPA v0.2.0; Suomi: Latest git tags checked: npa v0.2.0, npa-std v0.1.0, npa-mathlib v0.1.30.
Lisenssi: Apache-2.0; Suomi: Apache-2.0 was verified for npa, npa-std, and npa-mathlib on 2026-07-02.

Suomi: Public recheck: 2026-07-02. The NPA repository latest git tag is v0.2.0; npa-std is v0.1.0; npa-mathlib is v0.1.30. Package README pins are shown as repository-specific context and are not flattened into one NPA version claim.

Suomi: NPA evidence page preview showing certificate checking and trust-boundary inspection — Suomi: The visual is a static preview of the certificate-checking result and trust-boundary explanation. It is not a live NPA trace.

Public status

Suomi: State what is public, what is evidence, and when it was rechecked.

Suomi: This page makes the page's basis visible: a local truth snapshot, a public repository source, and the final prelaunch readback date.

Julkinen tila

Tutkimusrepository

Suomi: The GitHub repository is public, but this page describes a research and implementation repository, not a deployed service.

Public recheck

2026-07-02

Suomi: The public-source readback was completed on 2026-07-02. The original source reconstruction still uses the 2026-06-21 local truth snapshot.

Evidence

Certificates and hashes

Suomi: The source snapshot records canonical .npcert, certificate_hash, export_hash, axiom_report_hash, and checker verdicts.

License

Apache-2.0 verified

Suomi: Apache-2.0 was verified for npa, npa-std, and npa-mathlib through public LICENSE metadata on 2026-07-02.

Boundary

Suomi: NPA is not a practical replacement for Lean or Rocq. The distributed browser inspection simulation does not run NPA itself. Public tags, license, and repository visibility were checked on 2026-07-02 for the final publication readback.

Trust boundary

Suomi: Move only a canonical certificate across the evidence boundary.

Suomi: The boundary is not about which tool looks sophisticated. It is about which artifact is allowed to become evidence after independent checking.

Suomi: Parser, elaborator, tactics, automation, theorem search, plugins, AI systems, source files, replay files, theorem indexes, publish plans, CI status, release pages, and registry metadata stay on the untrusted candidate side.

Suomi: Proof pipeline / explanatory simulation

Suomi: Show the exact pipeline from certificate bytes to checking evidence.

Suomi: The browser simulation does not run NPA itself, Rust, WASM, or real proof certificates. It visualizes the source-free checking order that real artifacts must satisfy.

CLI evidence path

npa package verify-certs --root . --checker reference --json

NPA / audit trace READY

01 Certificate formatcanonical .npcert bytes / parseable certificate / format check WAIT
02 Certificate hashcertificate bytes / certificate_hash / deterministic digest WAIT
03 Kernel verdictcertificate / accept or reject / Rust verifier report WAIT
04 Reference checkerhash-pinned certificate / independent accept or reject / source-free checker report WAIT
05 Axiom reportchecked package / axiom_report_hash / assumption inventory WAIT

Verdict

Suomi: The explanatory pipeline has not run yet.

Suomi: Run the explanation to mark the source-free checking path in order.

Claim register

Suomi: Separate evidence, time-sensitive facts, and boundary claims.

Suomi: This page does not rely on loose research copy. Each public statement is tied to a local truth snapshot, a source, and a publication action.

Väite	Julkinen muotoilu	Tila	Lähde	Julkaisutoimi
CL-001	Suomi: NPA is certificate-first: the auditable boundary is the canonical .npcert artifact and the checking path around it.	Suomi: Verified public claim	S01 / 2026-07-02	Suomi: Review when the README changes.
CL-002	Suomi: The 2026-07-02 public recheck found the NPA repository latest git tag at v0.2.0. Related package READMEs still show repository-specific pins, so version wording stays scoped by repository.	Suomi: Verified public recheck	S01 / S02 / 2026-07-02	Suomi: Keep tag wording scoped by repository.
CL-003	Suomi: The local truth snapshot records a Rust 1.95.0 toolchain pin; it is not used as a marketing claim.	Suomi: Verified, time-sensitive	S01 / 2026-07-02	Suomi: Recheck if the toolchain version is displayed.
CL-004	Suomi: NPA is not a practical replacement for Lean or Rocq. This boundary must stay visible beside any comparison.	Suomi: Verified boundary claim	S01 / S03 / S05 / 2026-07-02	Suomi: Retain the disclaimer.
CL-005	Suomi: npa-std and npa-mathlib are separate public theorem-package repositories in the finitefield-org organization.	Suomi: Verified public claim	S01 / S02 / 2026-07-02	Suomi: Recheck repository visibility again if publication is delayed or repositories change.
CL-006	Suomi: The npa, npa-std, and npa-mathlib repositories each expose Apache-2.0 licensing through their public LICENSE metadata.	Suomi: Verified public claim	S01 / S02 / 2026-07-02	Suomi: Recheck LICENSE on a major release.

Repositories and license

Suomi: Keep code, package repositories, and organization visibility explicit.

Suomi: Repository links are public-source pointers, not guarantees that the current page is synchronized with the latest GitHub state.

4 Suomi: repositories shown

finitefield-org

npa

Suomi: Certificate-first proof assistance and verification toolchain.

License: Suomi: Apache-2.0 verified from LICENSE on 2026-07-02.
Verification: Latest git tag: v0.2.0. No latest GitHub release is published. README current toolchain reference: NPA_GIT_TAG=v0.2.0.

experimentalRust / OCamlcertificate-first

Suomi: Open repository

finitefield-org

npa-std

Suomi: Standard theorem package repository for NPA proof sources.

License: Suomi: Apache-2.0 verified from LICENSE on 2026-07-02.
Verification: Suomi: Latest git tag and GitHub release: v0.1.0. README package metadata version: 0.1.0; package toolchain pin: NPA_GIT_TAG=v0.1.1.

experimentaltheorem packageproof source

Suomi: Open repository

finitefield-org

npa-mathlib

Suomi: Formal mathematics library research repository.

License: Suomi: Apache-2.0 verified from LICENSE on 2026-07-02.
Verification: Suomi: Latest git tag: v0.1.30. Latest GitHub release: v0.1.9. README package metadata version: 0.2.1; package toolchain pin: NPA_GIT_TAG=v0.1.1.

researchformal mathematicslibrary

Suomi: Open repository

finitefield-org

Finite Field GitHub organization

Suomi: Public organization snapshot for the Lab repository family.

License: Suomi: Repository-specific licenses apply
Verification: Suomi: npa, npa-std, and npa-mathlib are public as of the 2026-07-02 GitHub API readback.

public indexvisibility snapshotsource

Suomi: Open organization

Suomi: The GitHub repositories are the source for public code status. License, current tags, public visibility, and release wording were checked on 2026-07-02 as the M10-T14 final readback.

Proof ecosystem guard

Suomi: Clarify roles before comparing proof tools.

Suomi: This is a role table, not a ranking. Lean and Rocq remain reference proof-assistant ecosystems; NPA is presented as certificate-centered research and implementation work.

Kohta	Lean	Rocq	NPA
Suomi: Position	Suomi: Open-source programming language and proof assistant.	Suomi: Interactive theorem prover with a long research history.	Suomi: Research and implementation repository for certificate-first checking.
Suomi: Typical use	Suomi: Mathematics, software verification, and programming.	Suomi: Mathematics, specifications, program verification, and extraction.	Suomi: Research into proof certificates, independent checking, and a small trusted base.
Suomi: Evidence boundary	Suomi: Its own trusted kernel and ecosystem define the checking boundary.	Suomi: Its own kernel and checked developments define the checking boundary.	Suomi: The canonical .npcert artifact crosses from generation into checking.
Suomi: How this page treats it	Suomi: Reference for learning, comparison, and interoperability.	Suomi: Reference for learning, comparison, and formalization methods.	Suomi: Finite Field research project, not a product promise.
Suomi: Boundary	Suomi: Specialist knowledge is still required.	Suomi: Specialist knowledge is still required.	Suomi: NPA is not a practical replacement for Lean or Rocq at this time.

Suomi: Lean official site Suomi: Rocq Prover official site NPA GitHub

Sources

Suomi: Publish the source map beside the interpretation.

Suomi: Sources are shown so the reader can tell which claims come from public repositories, official proof-tool sites, and company context.

S01

finitefield-org/npa

Suomi: Primary source for NPA purpose, trust model, v0.2.0 current repository tag wording, commands, repository layout, and license.

Suomi: Open source S02

Finite Field GitHub organization

Suomi: Primary source for public repository visibility, latest git tags, release pages, and the Lab repository family snapshot checked on 2026-07-02.

Suomi: Open source S03

Lean official site

Suomi: Primary source for Lean's public positioning, checked on 2026-07-02.

Suomi: Open source S04

Lean language reference

Suomi: Primary source for dependent type theory and kernel reference context, checked on 2026-07-02.

Suomi: Open source S05

Rocq Prover official site

Suomi: Primary source for Rocq's public positioning, checked on 2026-07-02.

Suomi: Open source S06

FINITE FIELD company site

Suomi: Company source for Finite Field brand and business context.

Suomi: Open source

FAQ

Suomi: NPA status and verification boundaries.

Suomi: The answers emphasize the trust boundary before readers confuse a research page with a deployed proof-assistant service.

Suomi: Read about the company

01 Suomi: Is this page a product guarantee?

Suomi: No. NPA is shown here as a research and implementation repository. Client projects still need separate requirements, risk, responsibility, and acceptance criteria.

02 Suomi: Can NPA replace Lean or Rocq?

Suomi: No. NPA is not a practical replacement for Lean or Rocq. The page keeps that boundary visible because it matters for expectations.

03 Suomi: Does the page run real NPA verification?

Suomi: No. The browser simulation does not run NPA itself, Rust, WASM, or real proof certificates. It explains the inspection order.

04 Suomi: What counts as evidence here?

Suomi: The certificate artifact, deterministic hashes, Rust kernel/verifier result, source-free reference checker result, and axiom report form the checking-side evidence.

05 Suomi: Which facts need rechecking?

Suomi: Current public version, repository visibility, toolchain pins, license text, and source wording were rechecked on 2026-07-02 and should be rechecked again if publication is delayed or repositories change.

Suomi: From proof discipline to operations

Suomi: Use the same evidence discipline when a business decision must be trusted.

Suomi: For business systems, the useful lesson is not to add theorem proving everywhere. It is to decide what must be generated, checked, logged, corrected, and approved by people.

Suomi: Check the business issue Suomi: View prototype