How the vault is released
Once death has been confirmed (or the grace period has expired), leggit applies the release mode you chose for each vault.
The four modes
Independent
Each recipient independently receives their access to the contents. No one depends on anyone. Default choice, recommended for informational vaults (letters, photos, wishes).
Partial quorum
You set a threshold m out of N recipients. Example: 2 of my 3 children must agree. More protective than independent, more flexible than all present.
All present
All recipients (N out of N) must take part. If even one is missing, the vault stays closed. Maximum protection, minimum flexibility.
Estate executor
A recipient designated as estate executor (typically a notary) must be present in all cases, in addition to the chosen quorum. For formal estates or vaults with legal stakes.
A bit of cryptographic kitchen: Shamir Secret Sharing
When you choose a mode other than independent, leggit uses a mathematical scheme called Shamir Secret Sharing. The key that opens the vault is mathematically "broken" into N pieces, of which only m are required to reconstruct it. It is a cryptography theorem known since 1979 and used in the most secure digital vaults in the world.