A recovery signer that cannot act alone.

If you lose the device that holds your keys, the account still has to recover without handing anyone custody. SciPHR does this with a signer list on the XRP Ledger, a set of accounts allowed to re-key it together.

Each signer carries a weight, and the account sets a quorum, the total weight a group must reach to act. Your other devices and a recovery-code key are signers. SciPHR is one too, but its weight sits below that quorum. Its signature alone never reaches the threshold, so it can help a recovery and can never move funds on its own.

Think of a document that needs two signatures, where SciPHR only ever holds one.

A signer kept below the quorum can assist a recovery without ever being able to move funds. The rule is enforced by the ledger, not by trust in SciPHR.