No provider. No trust required.

Your pulse keeps the secret.
Silence releases it.

You leave an important message for someone — but it should only arrive if you're no longer around. As long as you check in every so often, it stays sealed. If that check-in stops, it's released automatically. No one can read it early — not a server, not the operator, not even us.

  • No one can read it early
  • Your sign of life can't be faked
  • No account, no sign-up

Use cases

What you use it for

Bitcoin inheritance

Securely pass on a private key or wallet seed to heirs — unlocked automatically when you stop checking in. No trustee, no lawyer.

Last message

A personal note to family or friends. Stays sealed while you live. Released only when you go silent.

Business continuity

Emergency access credentials or instructions for co-founders and partners — no intermediary, no central store.

Dead man's drop

Documents or revelations that surface automatically if you stop responding. For journalists, activists, whistleblowers.