VeraSnap EULA

1. DEFINITIONS

• "Content Provenance Protocol" or "CPP" means the open cryptographic audit trail standard for verifiable media capture as defined by the VeritasChain Standards Organization (VSO).
• "Cryptographic Proof" means the digital signature, hash values, timestamps, and related metadata generated by the App to establish provenance of captured media.
• "Media" means photographs, images, and any other content captured through the App.
• "Proof Data" means the immutable cryptographic evidence associated with captured Media, including but not limited to event hashes, digital signatures, RFC 3161 timestamps, and Merkle tree proofs.
• "Time Stamping Authority" or "TSA" means a third-party service that provides RFC 3161-compliant timestamps to establish temporal proof of events.
• "Subscription" means the optional paid service tier (VeraSnap Pro) providing enhanced features.

2. LICENSE GRANT

2.1 Limited License

Subject to your compliance with this Agreement, we grant you a limited, non-exclusive, non-transferable, revocable license to download, install, and use the App on iOS devices that you own or control, solely for your personal, non-commercial use.

2.2 Restrictions

You agree not to:

• Copy, modify, adapt, translate, reverse engineer, decompile, disassemble, or create derivative works based on the App;
• Rent, lease, lend, sell, redistribute, or sublicense the App;
• Remove, alter, or obscure any proprietary notices, labels, or marks on the App;
• Use the App for any unlawful purpose or in violation of any applicable laws or regulations;
• Attempt to circumvent, disable, or interfere with any security features of the App;
• Use the App to generate false or misleading evidence, fabricate timestamps, or create fraudulent provenance records;
• Use the App in any manner that could interfere with, disrupt, or negatively affect the App or the servers and networks connected thereto.

3. OWNERSHIP AND INTELLECTUAL PROPERTY

3.1 App Ownership

The App, including all intellectual property rights therein, is and shall remain the property of VeritasChain Co., Ltd. and its licensors. This Agreement does not grant you any ownership rights in the App or any intellectual property contained therein.

3.2 Your Content

You retain all ownership rights in and to the Media you capture using the App. We do not claim any ownership or intellectual property rights over your Media. The Proof Data generated by the App is associated with your Media but does not transfer ownership of your content to us.

4. DESCRIPTION OF SERVICES

4.1 Core Functionality

VeraSnap is a cryptographic evidence camera application that implements the Content Provenance Protocol (CPP). The App provides:

• Cryptographically signed capture events using device-generated keys
• RFC 3161-compliant timestamps from external Time Stamping Authorities
• Merkle tree batch aggregation for efficient verification
• Privacy-first proof sharing capabilities
• Optional Attested Capture Mode with biometric verification binding
• Verification tools to validate proofs from the App or external sources

4.2 Important Limitations

5. PRIVACY AND DATA HANDLING

5.1 Privacy by Design

VeraSnap is designed with privacy as a core principle. All cryptographic operations, including key generation and signing, are performed locally on your device. Your Media and full Proof Data are stored locally on your device and are never transmitted to our servers without your explicit action.

5.2 Data Processing

The App processes the following data:

• Local Processing Only: Media files, cryptographic keys, signatures, and Proof Data are processed and stored exclusively on your device.
• Hash Values Only: When obtaining RFC 3161 timestamps, only cryptographic hash values (not your actual Media or personal information) are transmitted to external Time Stamping Authorities.
• Location Data (Optional): Location recording is disabled by default. If enabled, location data is stored locally within your Proof Data and is never transmitted to our servers.
• Biometric Data: For Attested Capture Mode, the App uses your device's biometric authentication (Face ID/Touch ID). We do NOT store, process, or have access to your biometric data. The App only records that authentication was successfully performed.

5.3 Data Deletion

You may delete your Media at any time. When deleting, you can choose to: (a) delete the Media file only while retaining the Proof Data, or (b) invalidate the Proof Data by creating a Tombstone record. This design philosophy—"Delete the data, but never delete the truth"—ensures provenance records remain verifiable even after Media deletion.

6. SUBSCRIPTIONS AND PAYMENTS

6.1 Free and Paid Features

The App is available in both free and paid (VeraSnap Pro) versions. Certain features may be limited or unavailable in the free version. Features available to each tier are subject to change.

6.2 Subscription Terms

VeraSnap Pro subscriptions are billed through Apple's App Store. By purchasing a subscription:

• Payment will be charged to your Apple ID account at confirmation of purchase;
• Subscriptions automatically renew unless auto-renewal is turned off at least 24 hours before the end of the current period;
• Your account will be charged for renewal within 24 hours prior to the end of the current period at the subscription rate then in effect;
• You may manage and cancel your subscriptions through your Apple ID Account Settings after purchase;
• Any unused portion of a free trial period will be forfeited when you purchase a subscription.

6.3 Refunds

All purchases are processed by Apple. Refund requests must be submitted to Apple in accordance with Apple's refund policies. We do not have the ability to process refunds directly.

7. DISCLAIMER OF WARRANTIES

Without limiting the foregoing, we do not warrant that:

• The App will meet your requirements or expectations;
• The App will be uninterrupted, timely, secure, or error-free;
• Any Proof Data generated by the App will be accepted by any court, governmental body, or other authority;
• Third-party Time Stamping Authorities will remain available or accurate;
• The cryptographic algorithms used will remain secure against all future attacks.

8. LIMITATION OF LIABILITY

• Your use of or inability to use the App;
• Any reliance placed by you on any Proof Data or verification results;
• Any failure or unavailability of third-party services, including Time Stamping Authorities;
• Any unauthorized access to or alteration of your data;
• Any other matter relating to the App.

IN NO EVENT SHALL OUR TOTAL LIABILITY TO YOU FOR ALL CLAIMS ARISING FROM OR RELATED TO THIS AGREEMENT OR THE APP EXCEED THE AMOUNTS PAID BY YOU FOR THE APP DURING THE TWELVE (12) MONTHS PRECEDING THE CLAIM, OR ONE HUNDRED US DOLLARS (USD $100), WHICHEVER IS GREATER.

Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so the above limitations may not apply to you. In such jurisdictions, our liability shall be limited to the maximum extent permitted by law.

9. INDEMNIFICATION

You agree to indemnify, defend, and hold harmless VeritasChain Co., Ltd. and its directors, officers, employees, agents, and licensors from and against any and all claims, damages, losses, costs, and expenses (including reasonable attorneys' fees) arising from or related to: (a) your use of the App; (b) your violation of this Agreement; (c) your violation of any applicable laws or regulations; (d) your violation of any rights of any third party; or (e) any claim that your use of the App caused damage to a third party.

10. TERMINATION

10.1 Your Right to Terminate

You may terminate this Agreement at any time by uninstalling the App and discontinuing its use. Termination of your subscription does not automatically terminate this Agreement if you continue using the free version of the App.

10.2 Our Right to Terminate

We may terminate or suspend your access to the App immediately, without prior notice or liability, for any reason, including if you breach any provision of this Agreement.

10.3 Effect of Termination

Upon termination, your license to use the App will cease immediately. All provisions of this Agreement that by their nature should survive termination shall survive, including ownership provisions, warranty disclaimers, limitations of liability, and indemnification.

11. THIRD-PARTY SERVICES

The App utilizes third-party services, including but not limited to Time Stamping Authorities for RFC 3161 timestamps. These services are provided by independent third parties and are subject to their own terms of service and privacy policies. We are not responsible for the availability, accuracy, content, or policies of these third-party services. Your use of such third-party services is at your own risk.

12. UPDATES AND MODIFICATIONS

12.1 App Updates

We may from time to time develop and release updates to the App, which may include bug fixes, new features, or security enhancements. Your continued use of the App following any update constitutes your acceptance of such updates.

12.2 Agreement Modifications

We reserve the right to modify this Agreement at any time. Material changes will be communicated through the App or via email to registered users. Your continued use of the App after such modifications constitutes your acceptance of the revised Agreement.

13. EXPORT COMPLIANCE

The App contains cryptographic functionality and may be subject to export restrictions. You agree to comply with all applicable export control laws and regulations of Japan, the United States, and any other relevant jurisdiction. You represent and warrant that you are not located in a country subject to embargo and are not on any government list of prohibited or restricted parties.

14. GOVERNING LAW AND DISPUTE RESOLUTION

14.1 Governing Law

This Agreement shall be governed by and construed in accordance with the laws of Japan, without regard to its conflict of law provisions.

14.2 Dispute Resolution

Any dispute arising out of or relating to this Agreement shall be resolved through good-faith negotiation between the parties. If the dispute cannot be resolved through negotiation, it shall be submitted to the exclusive jurisdiction of the courts of Tokyo, Japan.

15. APPLE-SPECIFIC TERMS

The following terms apply to your use of the App on Apple's iOS platform:

• Acknowledgment: You acknowledge that this Agreement is concluded between you and VeritasChain Co., Ltd. only, and not with Apple, Inc. ("Apple"). VeritasChain Co., Ltd., not Apple, is solely responsible for the App and its content.
• Scope of License: The license granted to you for the App is limited to a non-transferable license to use the App on any Apple-branded product that you own or control as permitted by the Usage Rules set forth in the Apple Media Services Terms and Conditions.
• Maintenance and Support: VeritasChain Co., Ltd. is solely responsible for providing maintenance and support services for the App. Apple has no obligation to provide maintenance or support services.
• Warranty: In the event of any failure of the App to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price (if any) for the App. To the maximum extent permitted by applicable law, Apple has no other warranty obligation with respect to the App.
• Product Claims: VeritasChain Co., Ltd., not Apple, is responsible for addressing any claims relating to the App, including product liability claims, claims that the App fails to conform to applicable legal or regulatory requirements, and claims arising under consumer protection or similar legislation.
• Intellectual Property: In the event of any third-party claim that the App infringes that third party's intellectual property rights, VeritasChain Co., Ltd., not Apple, will be solely responsible for the investigation, defense, settlement, and discharge of such claim.
• Third-Party Beneficiary: Apple and its subsidiaries are third-party beneficiaries of this Agreement. Upon your acceptance of this Agreement, Apple will have the right (and will be deemed to have accepted the right) to enforce this Agreement against you as a third-party beneficiary.

16. GENERAL PROVISIONS

16.1 Entire Agreement

This Agreement constitutes the entire agreement between you and VeritasChain Co., Ltd. regarding the subject matter hereof and supersedes all prior or contemporaneous understandings and agreements, whether written or oral.

16.2 Severability

If any provision of this Agreement is found to be invalid or unenforceable, that provision shall be enforced to the maximum extent permissible, and the remaining provisions shall continue in full force and effect.

16.3 Waiver

No failure or delay by us in exercising any right under this Agreement shall operate as a waiver of such right. Any waiver must be in writing and signed by us.

16.4 Assignment

You may not assign or transfer this Agreement or any rights or obligations hereunder without our prior written consent. We may assign this Agreement without restriction.

16.5 Language

This Agreement is drafted in English, which shall be the controlling language for all purposes. Any translations provided are for convenience only and shall not modify the English version.

17. CONTACT INFORMATION

For questions, concerns, or notices regarding this Agreement or the App, please contact: