Terms of Service

2. The Service

SlabProof provides unit-level provenance records and NFC tamper seals for graded trading cards and comics, along with public provenance pages that show a unit's recorded history.

3. What SlabProof Does Not Do

SlabProof does not grade, appraise or value items and is not affiliated with PSA, CGC, Collectors Universe or any grading company. Grades come from the grading company, not SlabProof.

Attestation levels describe who applied a seal, who verified what, and when. Level 1 — Registry Record: owner-entered information, with no physical seal. Level 2 — Owner/Dealer Applied: tamper-evident from the date the seal is applied; it does not independently verify the contents at sealing. Level 3 — Event-Verified: SlabProof staff inspected the slab before sealing it.

SlabProof makes no authenticity guarantee about items it has not event-verified.

4. Accounts

You are responsible for providing accurate account information, keeping your sign-in details secure and for activity on your account. You must be 18 or older, or have a parent or guardian's permission and use the service under their supervision.

5. User Content and Accuracy

Only register information you can stand behind. Do not submit false provenance or register items you do not own or are not authorized to sell. We may remove records or suspend accounts for misuse.

6. Ownership Transfers

Transfers between accounts update the recorded chain of custody. SlabProof is not a party to sales between users and does not handle payment, shipping or disputes between buyers and sellers.

7. Billing, Cancellation and Refunds

Annual plans qualify for a full refund within 30 days of purchase or renewal. After 30 days, annual plans are not refunded and stay active until the end of the paid term. Monthly payments are not refunded. Refund requests must come from the account holder's email address to SlabProof support within the 30-day window.

Paid plans are billed monthly unless an annual plan is chosen. Annual plans are billed once for the full 12 months. Tags and event sealing are billed separately. Cancel anytime; cancellations take effect at the end of the current billing period, and registry records remain verifiable after a plan change. We email the account holder 30 days before an annual plan renews, with the renewal date and amount.

NFC tags are not refundable once shipped; defective tags are replaced. Shipping is added to tag orders under $100. Level 3 event sealing fees are not refundable once the seal is applied. Enterprise refunds and cancellation follow the customer's contract.

8. Event Sealing

Free Level 3 seals are per event and available only with a paid subscription. Collector Pro subscribers receive 5 free seals per event, then pay $5 per slab. Verified Dealer subscribers receive 25 free seals per event, then pay $5 per slab. Free Collector members and non-subscribers pay $7.50 per slab. Enterprise pricing is per contract. Every per-slab price includes the NFC tamper seal.

9. Acceptable Use

Do not attempt to clone, copy, tamper with or reuse seals. Do not scrape, reverse engineer or interfere with the service, or use it to mislead others or facilitate fraud.

10. Intellectual Property

SlabProof, the SlabProof name and logos, and Cerfinity DPT™ are trademarks of Cerfinity, Inc. Using the service does not give you ownership of these trademarks or other service intellectual property.

11. Disclaimers and Limitation of Liability

To the extent permitted by law, the service is provided “as is” and “as available,” without warranties of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose and non-infringement. We do not warrant that the service will be uninterrupted, error-free or that user-entered information is accurate.

To the extent permitted by law, Cerfinity, Inc. is not liable for indirect, incidental, special, consequential or punitive damages, or lost profits or data arising from your use of the service. Our total liability arising from or relating to the service is limited to the fees you paid to Cerfinity, Inc. for SlabProof in the 12 months before the event giving rise to the claim. These limits do not exclude liability or rights that cannot be limited under applicable law.

12. Termination

You can cancel anytime, with cancellation effective at the end of your current billing period as described in Section 7. We may suspend or terminate accounts that violate these Terms.

13. Changes to These Terms

We will post updates on this page and change the “Last updated” date. Material changes will be emailed to account holders.

14. Contact

For questions about these Terms or refund requests, contact SlabProof at verify@slabproof.com. Refund requests must come from the account holder's email address within the 30-day window described in Section 7.