Legacy-Vault
What it does
Legacy Vault lets you lock BTC on Bitcoin with a countdown timer and designate an heir. As long as you're alive, you can cancel the vault and reclaim your BTC at any time. If you go silent for the set number of blocks, the vault expires and your heir can claim the funds — along with an optional time capsule message you left for them.
How it works
Owner deposits BTC — sets an heir address, a block timer, and an optional message
Owner stays alive — can cancel the vault to reclaim BTC at any time
Timer runs out — if the owner goes silent, the vault expires after the set number of Bitcoin blocks
Heir claims — the heir connects their wallet, the app auto-detects their role, and they claim the BTC + message
