SOURCE NOTES AND METHODOLOGY
Reviewed 13 July 2026

1. WhatsApp Help Center — “How to export your chat history”
   https://faq.whatsapp.com/1180414079177245/
   Used for the existence and naming of WhatsApp’s native Export Chat workflow.

2. NIST Forensic Science Glossary — “Hash, Hash Value”
   https://www.nist.gov/glossary-term/38726
   Used for the narrow integrity purpose of hash values.

3. UK Visas and Immigration — “Relationship with a partner” caseworker guidance
   https://www.gov.uk/government/publications/relationship-with-a-partner-caseworker-guidance/relationship-with-a-partner-accessible
   The guidance says evidence is considered in the round, official and
   verifiable evidence carries more weight, and WhatsApp/social-media material
   can be difficult to verify. This is why the pack treats chat records as one
   supporting source rather than a magic proof document.

4. GOV.UK — Family visas: information and evidence you must provide
   https://www.gov.uk/uk-family-visa/provide-information
   Used to reinforce that official application requirements and other evidence
   should be checked rather than relying only on a chat export.

METHODOLOGY

These templates were designed for transparent preparation: preserve the
native file, separate originals from working copies, disclose changes, record
transfers, identify limitations, and defer format/legal requirements to the
actual recipient. They do not reproduce or certify any authority’s required
form. No private or customer data was used.
