- Self-custody
- A model where you alone control the cryptographic keys to your funds and data. Vaultr is non-custodial: no single party, including Vaultr, can move your funds on your behalf.
- Coercion resistance
- Security designed to protect you even when someone physically forces you to unlock — using decoy, duress, and destruct vault slots that each return an identical success response.
- Decoy slot
- A vault slot that opens a complete, believable but fake profile, so you can satisfy a coercer without exposing your real vault.
- Duress slot
- A vault slot that unlocks looking completely normal while silently alerting your nominated guardians — with no banner, sound, or error a coercer could detect.
- Destruct slot
- A vault slot that wipes the normal vault data in a single operation while still returning a normal success response.
- Plausible deniability
- The property that an observer cannot prove a hidden vault exists. Vaultr’s server always reports a slot’s type as “normal”, so it cannot reveal which slot is real, decoy, duress, or destruct.
- ERC-4337
- The account-abstraction standard that makes a wallet a programmable smart contract instead of a single private key, enabling gas sponsorship, batched transactions, and counterfactual addresses. Vaultr uses the v0.7 UserOperation flow.
- Account abstraction
- Treating a wallet as programmable code rather than a single keypair, so it can support features like sponsored gas and recovery — the basis of Vaultr’s smart wallet.
- Counterfactual address
- A smart-account address that is known and usable before it is deployed on-chain, so you can receive funds before paying any gas.
- Shamir Secret Sharing
- A method of splitting a secret into multiple shares where a threshold subset reconstructs it. Vaultr splits your master key over GF(256) into device, server, and recovery shares — any 2 of 3 reconstruct it.
- Paymaster
- An ERC-4337 component that can sponsor transaction gas or let you pay it in a token other than the chain’s native coin. Vaultr uses a Pimlico bundler with paymaster support.
- Matrix
- An open, federated messaging protocol controlled by no single company. Vaultr’s messaging is built on Matrix, with end-to-end encryption on by default.
- MLS
- Message Layer Security — the modern standard for scalable end-to-end encrypted group messaging, used by Vaultr for group chats.
- Social recovery
- Regaining account access through trusted people (guardians) instead of a seed phrase. Vaultr uses a 2-of-3 guardian threshold by default, with requests expiring after 72 hours.
- Guardian
- A trusted person you nominate to approve account recovery or to be silently alerted if you unlock a duress slot.
- Passkey (FIDO2)
- A phishing-resistant credential based on the WebAuthn/FIDO2 standard, using a hardware-backed key instead of a password. Vaultr supports passkeys with replay-protection counters.
- BMZ
- The native gas and fee-discount utility token of Blockmaze. Holding or staking BMZ lowers platform fees; it is a utility token, not an investment.
- Blockmaze
- Vaultr’s own EVM-compatible Layer 0 blockchain with roughly 2-second blocks and native ERC-4337 support; BMZ is its gas token.