Terms of Service

These Terms of Service ("Terms") govern your use of the Proofcan service (proofcan.com). By using the service, you accept these Terms. If you do not accept them, do not use the service.

1. Service Provider

The service is provided under the Galzura Software Company brand by Volkan Çatak (sole proprietorship). Contact: support@proofcan.com. For all legal information, see the Legal Notice page.

2. Description of the Service

Proofcan is a digital tool that adds provenance information (a digital signature under the C2PA standard) and an invisible watermark to AI-generated images, video and audio files, enables their verification, and produces a compliance report. The service is offered as a technical support tool aimed at the transparency obligations under Article 50 of the EU Artificial Intelligence Act (EU AI Act).

3. Account and Registration

To use the marking features of the service, you must create an account. Registration may be done with email/password or via Sign in with Google. You are responsible for the confidentiality of your account credentials and for the operations carried out under your account. You agree that the information you provide is accurate and up to date.

4. User Obligations and Acceptable Use

When using the service, you agree to: upload only content that you have the right to process; not upload content that is unlawful, infringes copyright, is harmful, obscene, or violates the rights of others; not misuse the service, not strain the system with automated/excessive uploads, and not attempt to circumvent security measures; comply with quota and subscription limits.

In the event of a breach of these rules, your account may be suspended or terminated.

5. Plans, Prices, Renewal and Payment

The service offers a free plan and paid plans. A paid plan is a monthly subscription that includes a number of marks per month (the monthly quota). The web app and the API use the same quota, and marks not used in a month do not carry over to the next month. There is one exception: when you upgrade to a higher plan, you pay the full price of the new plan on the day of the upgrade and its monthly period starts that day; your previous subscription ends at that moment without a refund, and the marks you had not used in its current period are added once to the first month of the new plan. They expire at the end of that first month. If you are a consumer, this does not affect your right of withdrawal (section 7); if you withdraw from the previous subscription, the carried-over marks are void. Moving to a lower plan is done through support@proofcan.com.

The value of one mark is the monthly price of the plan divided by the number of marks it includes per month: Starter €29 ÷ 100 = €0.29, Pro €99 ÷ 400 = €0.2475, Agency €199 ÷ 1,000 = €0.199. Prices include VAT. The prices and quotas that apply are shown on the pricing page and before you pay.

Video and audio files are marked on paid plans only, from the same monthly marks: a video uses 1 mark for every second begun and an audio file 1 mark for every 10 seconds begun, counted on the length we read from the file (a 10-second video uses 10 marks; a 95-second audio file uses 10 marks). On the website a video can be up to 60 seconds, 95 MB and 1080p (1920 × 1080 pixels), and an audio file 10 seconds to 5 minutes and up to 50 MB. If a file cannot be marked, the marks it would have used are refunded.

Checking files is free. On the website each visitor can check 3 images, 1 video and 1 audio file a day; the count starts again at 00:00 UTC, and signing in does not add checks. Looking up a record number is not limited.

Before you pay, you state whether you are buying as a business (including freelancers and the self-employed) or as a consumer (a private person). Paid plans renew automatically every month until they are cancelled. We announce price changes a reasonable time before they take effect.

All payments are processed by Paddle.com Market Limited acting as the Merchant of Record; invoicing, tax (VAT) collection and payment processing are handled by Paddle.

6. Cancellation

You can cancel a paid plan at any time, without giving a reason. The cancellation takes effect at the end of the billing period you have already paid for; until then you keep your plan, and nothing more is charged. The right to cancel for good cause remains unaffected.

You can cancel without signing in through "Cancel contracts here" ("Verträge hier kündigen" on the German pages) in the footer of every page, which opens the cancellation page, or, when signed in, from your dashboard. We confirm every cancellation by email, with its content, the date and time we received it and the time your contract ends.

7. Right of Withdrawal for Consumers

If you buy a paid plan as a consumer, you have a statutory right to withdraw from the contract within 14 days of the first payment. The right of withdrawal applies only to the first payment of a subscription; it does not apply to renewal payments, and it does not apply to purchases made as a business.

Before you pay, you ask us to start your plan immediately. If you then withdraw within the 14 days, you pay for the service provided until you withdraw: the marks you have used, valued at the price of one mark (plan price ÷ marks included per month × marks used), at most the plan price. We refund the rest of the first payment. You lose your right of withdrawal once the plan has been fully performed. If you upgraded to a higher plan, the marks carried over from your previous plan count as used first and are not charged.

To withdraw, use "Withdraw from contract here" in the footer of every page, which opens the withdrawal form (no sign-in needed), or send us a clear statement by email to support@proofcan.com. We confirm receipt by email. We refund through Paddle, to the payment method you used, without undue delay and at the latest 14 days after we receive your withdrawal. The withdrawal information and a model withdrawal form are in the Refund Policy.

8. Refunds

Apart from the right of withdrawal in section 7, payments are not refunded; this includes marks not used and the rest of a billing period after a cancellation. Your statutory rights, including your rights if the service does not conform to the contract, remain unaffected.

9. Intellectual Property

The service itself (software, design, brand, texts) belongs to us and is protected. The files you upload (images, video and audio) remain your property; you grant us permission to process this content in order to provide the service (marking, verification, reporting). Your rights to the marked outputs and reports you create remain with you.

10. Liability

Proofcan is a tool that adds provenance information and a watermark to images, video and audio files in accordance with technical standards. Proofcan does not guarantee that your use complies with any law (including the EU AI Act): legal compliance depends on your own obligations, your manner of use and the interpretation of the relevant legislation, and the service is not a substitute for legal advice. It is not guaranteed that the watermark and provenance information stay preserved or detectable in all circumstances (for example after the file is re-compressed, edited or altered on third-party platforms).

We are liable without limitation, in accordance with the statutory provisions, for (a) intent and gross negligence; (b) injury to life, body or health; (c) the assumption of a guarantee or fraudulent concealment; (d) mandatory liability under product liability law. In the case of slight negligence, we are liable only for the breach of a material contractual obligation (an obligation whose fulfilment is essential to the proper performance of the contract and on whose observance you regularly rely), limited to the foreseeable damage typical for this type of contract.

If you are a consumer, your statutory rights for digital services that do not conform to the contract apply, and nothing in these Terms restricts them. If you use the service as a business, the service is provided "as is" and "as available", and, to the extent permitted by law and subject to the paragraph above, we are not liable for indirect or consequential damages.

11. Changes and Interruptions to the Service

We reserve the right to improve, modify, or discontinue certain features of the service. There may be temporary interruptions to the service due to maintenance, technical faults, or causes beyond our control.

12. Termination of Account

In the event of a breach of these Terms, we may suspend or terminate your account. You can ask us to close your account at any time by email to support@proofcan.com.

13. Consumers and Business Users

The right of withdrawal (section 7) and the mandatory consumer protection provisions apply only to users who buy as consumers. Users who buy as a business, including freelancers and the self-employed, have no right of withdrawal; for them, liability and the other terms apply to the extent permitted by law.

14. Governing Law and Jurisdiction

These Terms are governed by the laws of the Republic of Türkiye. However, for users who are consumers, this choice of law does not deprive the user of the protection afforded by the mandatory consumer protection provisions of the country in which the user has their habitual residence (e.g. Germany, Austria, Switzerland) (Article 6 of the Rome I Regulation). Those mandatory protective provisions apply in all cases.

15. Changes

We may update these Terms from time to time. We will inform users in a reasonable manner of significant changes. The current version is always available on this page.

16. Contact

For questions: support@proofcan.com