ProofStudiesLifetime Deal — No Subscriptions
Own Your Authority Infrastructure
Governance-grade case studies. Bring your own OpenAI key. Pay once. Own it.
- LTD licensing (no subscriptions)
- BYO OpenAI key (you control costs)
- Evidence-backed (no fabrication)
Creator LTD
€297one-time
1 domain · 1 user
- Full governance pipeline (Onboard → Crawl → Enrich → Generate → Score → Gate → Publish)
- Unlimited case studies
- Image evidence required (vision + user-confirmed inputs)
- Governance rubric (must score ≥ 8.5 to publish)
- WordPress + Webflow publishing
- Schema.org markup
- Full audit trail export (JSON)
- Built-in attribution layer
- BYO OpenAI key
Most Popular
Studio LTD
€497one-time
Up to 3 domains · 3 users
- Everything in Creator, plus:
- Multi-domain management
- Team access
- Version history
- Advanced internal linking opportunities
- Extended entity mapping
Agency LTD
€997one-time
Up to 10 domains · 10 users
- Everything in Studio, plus:
- White-label attribution controls
- Client export packs
- Central publish log
- Governance compliance reporting
- Priority feature voting
Add-On
AuthMark™ Pixel Signature
Optional signal-layer provenance for your case study images — beyond metadata.
- Invisible pixel-embedded identity
- Reed–Solomon ECC protection
- JPEG compression survival (tested to Q60)
- Survival Lab transform report + confidence score
- Signature validation
AuthMark is optional. ProofStudies already publishes with provenance metadata and attribution. AuthMark adds pixel-level resilience for images that travel.
Optional
Optional Care Plan
€97/year per domain
- Platform survival updates (as platforms change)
- Algorithm improvements
- ECC upgrades
- Compatibility updates
- Priority support
Your LTD license keeps working without a Care Plan. Care Plan keeps your system evolving.
Add Care PlanCompare Plans
| Feature | Creator | Studio | Agency |
|---|---|---|---|
| Domains | 1 | 3 | 10 |
| Users | 1 | 3 | 10 |
| Unlimited case studies | ✔ | ✔ | ✔ |
| Governance gating | ✔ | ✔ | ✔ |
| Audit trail export | ✔ | ✔ | ✔ |
| WordPress / Webflow publish | ✔ | ✔ | ✔ |
| Multi-domain management | — | ✔ | ✔ |
| White-label attribution | — | — | ✔ |
| Priority support | — | — | ✔ |
AuthMark available as add-on on all tiers.
Frequently Asked Questions
Is this a subscription?
No. ProofStudies is a lifetime deal — pay once, own it. You bring your own OpenAI key and control your own API usage costs directly.
What does "BYO OpenAI key" mean?
You create your own OpenAI account, set your own spending limits, and paste your API key into ProofStudies. You pay OpenAI directly — we never touch your key balance.
Do you fabricate case studies?
Never. Every case study requires real image evidence and user-confirmed inputs. Drafts must score ≥ 8.5/10 on our governance rubric before they can be published. Weak content is blocked automatically.
Can I publish to WordPress and Webflow?
Yes. ProofStudies ships with native connectors for both WordPress (REST API) and Webflow (CMS API). Schema.org structured data is included automatically.
Is AuthMark required?
No. AuthMark is an optional add-on for pixel-level image provenance. ProofStudies already publishes with attribution metadata and full audit trails without it.
Does AuthMark affect image quality?
No. The pixel signature is invisible to the human eye (PSNR > 48 dB, SSIM > 0.99). It survives JPEG compression down to Q60 and common social-media transforms.