Score Comparison
All Ideas
Dead man's switch for crypto wallets — automatically transfers digital assets to your beneficiaries if you stop checking in.
The Problem
An estimated $140 billion in Bitcoin alone is permanently lost, much of it because holders died or became incapacitated without sharing wallet access. Traditional estate planning doesn't handle crypto — lawyers don't understand seed phrases, hardware wallets, or multi-sig setups. Existing solutions require trusting a third party with your keys (custodial) or complex legal arrangements. The result: if you hold crypto and get hit by a bus tomorrow, your family likely loses everything.
The Solution
CryptoWill is an on-chain dead man's switch on Base. You register beneficiary wallet addresses, define an inactivity period (e.g., 90 days), and deposit assets into a time-locked smart contract. As long as you check in periodically (click a button, respond to an email/SMS), nothing happens. If you miss your check-in window, a countdown begins. After the grace period, beneficiaries can claim the assets. No custody, no lawyers, no seed phrase sharing — pure smart contract logic.
Portfolio Connection
Directly leverages Doug's Base blockchain and smart contract development experience. Uses the same chain as LocalRoots ($ROOTS token, USDC payments). The financial planning angle connects to the broader wealth management thesis behind Bourbon Bots.
Tech Stack
Solidity smart contracts on Base, Hardhat for development/testing, Next.js 15 frontend, wagmi + viem for wallet connection, Supabase for user profiles and notification preferences, Twilio/Resend for check-in reminders, Vercel deployment.
Monetization
Tiered subscription + protocol fees. - **Basic:** Free — 1 wallet, 1 beneficiary, $10K max deposit - **Plus:** $9.99/mo — 5 wallets, 3 beneficiaries, $100K max - **Premium:** $29.99/mo — Unlimited wallets/beneficiaries, multi-sig, custom inactivity periods - **Protocol fee:** 0.1% of assets upon transfer to beneficiary (one-time)
Market Valuation
MVP Scope
- -Solidity smart contract: register beneficiaries, set inactivity period, check-in function, claim function
- -Deploy to Base Sepolia testnet (mainnet deployment as fast-follow)
- -Next.js frontend: connect wallet, set up dead man's switch, manage beneficiaries
- -Check-in dashboard: show countdown timer, one-click check-in, history log
- -Email/SMS check-in reminders (configurable frequency)
- -Beneficiary notification when grace period begins
- -Contract verification on BaseScan
- -Landing page with "how it works" explainer and trust/security messaging
Scoring Breakdown
| Dimension | Score | Rationale |
|---|---|---|
| Feasibility | 6 | Smart contract is straightforward; Doug has Solidity experience on Base |
| Monetization | 8 | High-value customers, subscription + protocol fees, strong willingness to pay |
| Market Value | 8 | $140B+ in lost crypto, growing as adoption expands |
| Portfolio Synergy | 7 | Base blockchain, Web3, financial asset management |
| Market Size | 8 | Anyone holding >$1K in crypto needs inheritance planning |
| Differentiation | 5 | Sarcophagus exists on ETH, but no Base-native product with consumer UX |
| Build Time | 5 | ~7 hours — smart contract + frontend + notification system |