ZeroDiff Commercial License
Copyright (c) 2026 HoosHub LLC. All rights reserved.

This license governs `zerodiff/enterprise.py` (the "Enterprise Module") and
only that file. Every other part of ZeroDiff is MIT-licensed; see LICENSE.

The Enterprise Module provides `zerodiff attest`, `zerodiff
verify-attestation`, `zerodiff history`, and `zerodiff replay --history`.


1. EVALUATION AND NON-PRODUCTION USE — NO CHARGE

You may read, run, copy, and modify the Enterprise Module without charge
for any of the following:

  (a) evaluating whether to purchase a commercial license;
  (b) development, testing, CI, and internal experimentation;
  (c) personal, academic, or research use;
  (d) contributing improvements back to this project.

"Non-production" means the output is not relied upon as evidence in a
commercial decision, a customer-facing claim, an audit, or a compliance
process.


2. PRODUCTION USE — REQUIRES A COMMERCIAL LICENSE

A commercial license is required to use the Enterprise Module where its
output is relied upon in the course of business. In particular:

  (a) presenting an attestation to an auditor, customer, regulator, review
      board, or counterparty as evidence that a verification took place;
  (b) gating a production release, merge, or deployment on it;
  (c) offering it, or its output, as part of a product or service to third
      parties.

Both paid tiers (Team and Enterprise) grant this license. See
docs/PRICING.md for the tiers and COMMERCIAL.md for how to obtain one.


3. WHAT YOU MAY NOT DO WITHOUT A COMMERCIAL LICENSE

  (a) remove or alter this license, the copyright notice, or the module's
      license header;
  (b) redistribute the Enterprise Module under different terms, including
      as part of a fork presented as fully MIT-licensed;
  (c) offer the Enterprise Module's functionality as a hosted or managed
      service.

Nothing here restricts your rights to the MIT-licensed remainder of
ZeroDiff, which you may fork, redistribute, and use commercially without
restriction — including with the Enterprise Module removed.


4. NO WARRANTY

THE ENTERPRISE MODULE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY ARISING FROM, OUT OF OR IN CONNECTION WITH THE ENTERPRISE
MODULE OR ITS USE.

An attestation records that a verification ran and that its inputs have not
been altered since. It is not a warranty that the verified software is
correct, fit for any purpose, or free of defects. Equivalence is asserted
over recorded behaviors only.


5. CONTACT

hooshub@gmail.com — put "ZeroDiff license" in the subject.
