legacy
World ChainWorld IDSolidityNext.jsTypeScript
built this at ethtokyo: legacy is an autonomous succession protocol that automatically transfers your crypto, nfts, and ens names to designated heirs if you stop actively checking in.
it runs on three states: active, where you periodically verify you're alive using world id (without revealing your identity), resetting a countdown timer; grace period, a buffer window after a missed check-in before transfers can occur; and heir claim, where heirs can initiate a claim, but a veto window lets you cancel it by checking in again.
everything is enforced on-chain through individual smart contract vaults per user on world chain, no pooled assets, no upgradeable contracts, no custodians, lawyers, or multisig intermediaries holding your assets.
it runs on three states: active, where you periodically verify you're alive using world id (without revealing your identity), resetting a countdown timer; grace period, a buffer window after a missed check-in before transfers can occur; and heir claim, where heirs can initiate a claim, but a veto window lets you cancel it by checking in again.
everything is enforced on-chain through individual smart contract vaults per user on world chain, no pooled assets, no upgradeable contracts, no custodians, lawyers, or multisig intermediaries holding your assets.