Choose two matching devices
Prepare a primary and backup suitable for long-term storage. Both should contain the same encrypted data.
HOW IT WORKS
How secure offline data storage works.
You choose the media and encrypt it. Everkeep handles the physical chain: intake, verification of matching ciphertext, sealing and separate storage.
Encrypt both copies yourself
Use full-volume encryption and keep the password and recovery information somewhere safe and separate.
Package and ship
Follow the intake guide, record the device serial numbers, and send both copies to the designated receiving address.
Intake, number and photograph
Everkeep records each manufacturer serial number, assigns an EK-YYYY-NNNN custody number, applies a numbered seal and photographs the sealed media.
Separate offline custody
The primary and backup are stored in different locations. Facility security is monitored; the media stays disconnected from every network.
THE EVERKEEP SEAL
Every handoff produces evidence.
The brass seal is more than a visual signature. It connects the public promise to an operating record: custody number, manufacturer serial, close-up seal image and full-device photographs.
EK-2026-0001
Intake confirmation
Custody ID · device serial · seal status · intake photographs · primary/backup location record · verifier sign-off
AFTER INTAKE
What you receive each year.
Custody confirmation
A record tying your device to its custody number and seal evidence.
Condition report
A scheduled physical condition check and exception record.
Renewal notice
Clear notice before the next custody period begins.
Understand the security boundary next.
See exactly what zero knowledge protects—and what it cannot do.