Cookie Policy
Last updated: February 23, 2026
1. What Are Cookies
Cookies are small text files placed on your device when you visit a website. They are widely used to make websites work efficiently and to provide reporting information to website operators. Cookies set by the website owner (in this case, OnChainProof) are called "first-party cookies." Cookies set by parties other than the website owner are called "third-party cookies."
2. How We Use Cookies
OnChainProof (onchainproof.io) uses cookies and similar technologies for the following purposes:
2.1 Strictly Necessary Cookies
These cookies are essential for the website to function and cannot be switched off. They are usually set in response to actions made by you, such as setting your privacy preferences, logging in, or filling in forms.
| Cookie | Purpose | Duration |
|---|---|---|
| ocp-cookie-consent | Stores your cookie consent preferences | 365 days |
| next-auth.session-token | Maintains your authenticated session | 30 days |
| next-auth.csrf-token | CSRF protection for form submissions | Session |
| next-auth.callback-url | Redirect URL after authentication | Session |
2.2 Analytics Cookies
These cookies help us understand how visitors interact with our website by collecting and reporting information anonymously. They are only set if you provide consent.
| Cookie | Purpose | Duration |
|---|---|---|
| va_* | Vercel Analytics — anonymous usage metrics | Session |
2.3 Functional Cookies
These cookies enable enhanced functionality and personalization, such as remembering your theme preference.
| Cookie | Purpose | Duration |
|---|---|---|
| ocp-theme | Stores your light/dark theme preference | 365 days |
3. Your Cookie Choices
When you first visit our website, a cookie consent banner will appear, allowing you to accept or reject non-essential cookies. Only strictly necessary cookies are set before you provide your consent.
You can manage your cookie preferences at any time by:
- Clicking the "Cookie Settings" link in the website footer
- Adjusting cookie settings in your browser
- Deleting cookies through your browser settings
Please note that disabling strictly necessary cookies may prevent certain features of the website from functioning properly.
4. Third-Party Cookies
We may use third-party services that set their own cookies. These third parties have their own privacy and cookie policies, and we encourage you to review them. Third-party services we currently use include:
- Vercel: hosting and analytics
- Stripe: payment processing (only on payment pages)
5. Do Not Track
Some browsers offer a "Do Not Track" (DNT) signal. Our website currently does not respond to DNT signals, but we honor your cookie consent preferences as described above.
6. Changes to This Policy
We may update this Cookie Policy from time to time. Changes will be posted on this page with an updated "Last updated" date. We encourage you to review this policy periodically.
7. Contact Us
If you have questions about our use of cookies, please contact us at privacy@onchainproof.io.