Beta · All features free during beta

UD Reference Letter

FREE · 3/MONTH

Create tamper-evident reference and recommendation letters as .uds files. Cannot be altered after issuance. Recipients verify authenticity without contacting the referee.

Referee Details

Referee Name *

Title / Role

Organisation

Reference Subject

Subject Name *

Letter Type

Issue Date

Context (role applied for, course, etc.)

Reference Text * (SHA-256 sealed — cannot be altered after generation)

How UD Reference Letter differs from PDF letters or email references

Cannot be altered

A PDF reference letter can be edited. A .uds reference letter is SHA-256 sealed — any change breaks the hash. Forgery is detectable.

Verifiable without calls

Recipients can verify the letter cryptographically without calling the referee. Faster hiring, less referee burden.

Tamper-evident timestamp

The sealed date is embedded in the .uds. Nobody can backdate a reference letter or claim it was written before an incident.

Portable

Share the .uds directly. No letterhead, no printing, no scanning. Works internationally and digitally.