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Privacy & Cookie Policy

Last updated: 5 September 2026

This policy explains how Vynex Tech Ltd ("we", "us", "our"), which operates paper-chain.io, collects and uses personal data, and how we use cookies. We are the data controller for the personal data described here.

Your documents stay in your browser. When you use paper-chain.io to check a Letter of Credit presentation, your documents are read and processed locally in your browser. We do not upload or store the documents themselves. Only a one-way SHA-256 hash of the document bundle is anchored to the public XRP Ledger — the hash cannot be reversed to reveal any document content.

1. Information we collect

Information you give us

Information created when you run a check

Information collected automatically

2. How we use your information

3. Legal bases (UK GDPR / EU GDPR)

4. Cookies & similar technologies

We use a small number of cookies and local-storage items. Non-essential (analytics and advertising) cookies are only set after you accept them in our cookie banner. We use Google Consent Mode v2, so until you consent, Google's tags run in a restricted, non-identifying mode.

NameProviderPurposeType / duration
pc_consentpaper-chain.ioRemembers your cookie choiceEssential · local storage until cleared
Google tag / Consent Mode signalsGoogleAds & measurement in consent-aware modeAnalytics/Ads · set only after consent
_gcl_au and related Google Ads cookiesGoogleMeasure ad clicks and conversionsAnalytics/Ads · up to 90 days · after consent

You can change your choice at any time using the button below, or by clearing cookies/site data in your browser. Blocking essential cookies may stop parts of the site working.

5. Who we share data with

We do not sell your personal data. We share it only with service providers who process it on our behalf, under contract:

6. International transfers

Some providers (for example Google) may process data outside the UK/EEA. Where they do, we rely on appropriate safeguards such as the UK International Data Transfer Agreement / EU Standard Contractual Clauses.

7. How long we keep it

We keep enquiry and audit-request data for as long as needed to respond to you and for our legitimate business records, and then delete or anonymise it. Verification reports shared with our team are retained only as long as needed to support your request. We do not retain your source documents, as they are not uploaded to us.

8. Your rights

Subject to law, you have the right to access, correct, delete, restrict or object to processing of your personal data, to data portability, and to withdraw consent. To exercise any of these, email uday@vynextech.co.uk. You also have the right to complain to the UK Information Commissioner's Office (ICO) at ico.org.uk, or your local supervisory authority.

9. Security

We use appropriate technical and organisational measures to protect personal data, including encryption in transit, access controls, and processing your documents locally in your browser wherever possible.

10. Children

paper-chain.io is a business service and is not directed at children. We do not knowingly collect personal data from children.

11. Changes to this policy

We may update this policy from time to time. We will post the updated version here and change the "Last updated" date above.

12. Contact us

Vynex Tech Ltd (Company No. 17244720)
105 Palewell Park, London, England, SW14 8JJ
Email: uday@vynextech.co.uk