Concepts

Short definitions of the vocabulary that shows up throughout 10102 Digital Inheritance. Skim this first; come back when a term doesn't click.

Legacy type

How your assets pass to your beneficiaries. Two shapes:

• Transfer legacy — distributes specific assets to specific addresses when activated, proportional to allocations you set. Created from your connected EOA wallet.

• Multisig legacy — hands over your existing Safe by adding your beneficiaries as co-signers on activation. The Safe itself (and everything it holds, stakes, or governs) is the inheritance.

Activation trigger

The condition that makes a legacy claimable. Today there's one trigger: inactivity — the time since your wallet's (or Safe's) last outgoing transaction. Measured in days. When the window elapses, any beneficiary can activate.

Heartbeat

Any action that proves you're still around and resets the activation timer. Most on-chain activity from your wallet counts automatically (a send, a swap, an approval, …). If you don't have another transaction to make, the details page has a dedicated heartbeat action that resets the timer in a single transaction.

Creator vs. signer (Safe legacies)

When a Safe creates a legacy, it's the Safe (not an individual) that owns it on-chain. But the single wallet that submitted the creation transaction is tagged as the creator. On-chain settings (beneficiaries, trigger, allocations) can be changed by any Safe signer at the Safe's threshold. Off-chain settings (email reminders, watchers) can only be changed by the creator. This asymmetry is documented inline on the relevant pages.

Storage token

A substitute for ETH inside the legacy or timelock, because native ETH can't be approved like an ERC-20. When you want to include ETH, you swap it through a built-in route into a supported storage token (WETH, a liquid staking token, etc.) and approve that token instead. You always see the available list in the app.

CREATE2

The deterministic contract-deployment opcode. We use it so your legacy contract's final address is known before you sign the deploy transaction. You can verify it in the app, and beneficiaries can find the contract even if our UI is unavailable. See also Legacy Claim Card.

Safe threshold

The minimum number of Safe signers required to execute a transaction (e.g. 2 of 3). Every on-chain change to a Safe-backed legacy is a Safe transaction and respects your Safe's threshold. You can finalize signatures inside our app or on app.safe.global — either works.

Finalizing

When a Safe transaction has collected enough signatures but hasn't executed yet, we call its state needs finalizing. Any signer can finalize by paying gas and broadcasting the transaction. Until it's finalized, the change isn't live.

Watchers

Read-only accounts a Premium user can authorize to view selected legacies under My Watchlist. Used for estate lawyers, family oversight, or personal dashboards across wallets. Watchers have one of two visibility levels — see Manage Authorized Watchers.

Contingent beneficiaries

Optional Premium layers. If the primary beneficiaries don't claim within a configurable window after activation, a second-line beneficiary becomes eligible. Same thing for a third-line after a further window. Designed to prevent assets from getting stuck when someone loses keys or is unreachable.

Legacy Claim Card

A printable one-page summary with the minimum information your beneficiaries need to claim via any Ethereum interface — not just our UI. Contains the legacy ID and contract address; intentionally excludes the owner's address for privacy. See Legacy Claim Card.

Timelock

A self-directed time-based lock on your own assets. Three flavors:

• Timelock — locked until a date; then you reclaim.

• Soft timelock — locked indefinitely; a waiting period starts when you initiate an unlock.

• Timelocked gift — locked until a date; then a specified recipient claims.

See Timelock.

Premium subscription

Optional, time-bound access model (like ENS registrations). Pay upfront in ETH, USDC, or USDT to unlock contingent beneficiaries, watchers, and email reminders for a chosen period. Free users retain full access to legacy creation, editing, and claims.