AfterLife | Temporal Asset Protocol ⏳⚖️

A decentralized "dead man's switch" protocol for secure crypto inheritance

Live Demo • Documentation • Deploy

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📖 Overview

AfterLife ensures your digital assets are securely distributed to beneficiaries if you become inactive for a defined period. The protocol operates on a "Dead Man's Switch" principle — lack of activity triggers a state change that eventually unlocks assets for your chosen beneficiaries.

Why AfterLife?

• 🔐 Trustless Execution — No centralized authority controls your assets
• ⏱️ Time-Based Triggers — Customizable inactivity thresholds
• 🛡️ Owner Override — Cancel inheritance at any time with proof of life
• 🔗 Multi-Chain — Deploy independently on Arbitrum and Mantle

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🔗 Deployed Contracts

Mainnet (Coming Soon)

Testnets

Network	Chain ID	Contract Address	Explorer	Status
Arbitrum Sepolia	421614	0x6D2Bd7091CE36F15C944AB99c4cfc8833c2B8957	Arbiscan ↗	✅ Live
Mantle Sepolia	5003	0xe04250cE4a9A2362eaC92B2BaA3E16E3691EBcE9	Mantlescan ↗	✅ Live

💡 Platform Fee: 10% on all beneficiary claims (sent to protocol treasury)

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🏗️ Architecture

System Components

┌─────────────────────────────────────────────────────────────────────────┐
│                           AFTERLIFE PROTOCOL                             │
├─────────────────────────────────────────────────────────────────────────┤
│                                                                          │
│   ┌──────────────┐     ┌──────────────┐     ┌──────────────┐            │
│   │    OWNER     │     │   GUARDIAN   │     │ BENEFICIARY  │            │
│   │   Register   │     │   Confirm    │     │    Claim     │            │
│   │   Deposit    │     │  Inactivity  │     │   Assets     │            │
│   │  Prove Life  │     │              │     │              │            │
│   └──────┬───────┘     └──────┬───────┘     └──────┬───────┘            │
│          │                    │                    │                     │
│          └────────────────────┼────────────────────┘                     │
│                               │                                          │
│                    ┌──────────▼──────────┐                              │
│                    │   SMART CONTRACT    │                              │
│                    │   (Multi-Tenant)    │                              │
│                    │                     │                              │
│                    │  • State Machine    │                              │
│                    │  • Fund Storage     │                              │
│                    │  • Vesting Logic    │                              │
│                    └──────────┬──────────┘                              │
│                               │                                          │
│          ┌────────────────────┼────────────────────┐                     │
│          │                    │                    │                     │
│   ┌──────▼──────┐      ┌──────▼──────┐     ┌──────▼──────┐              │
│   │  ARBITRUM   │      │   MANTLE    │     │   FUTURE    │              │
│   │   SEPOLIA   │      │   SEPOLIA   │     │   CHAINS    │              │
│   └─────────────┘      └─────────────┘     └─────────────┘              │
│                                                                          │
└─────────────────────────────────────────────────────────────────────────┘

Entity Roles

Entity	Role	Permissions
👤 Owner	Asset Holder	Register, deposit/withdraw, add guardians/beneficiaries, prove life, revive
🛡️ Guardian	Inactivity Oracle	Confirm owner inactivity (cannot touch funds)
💰 Beneficiary	Asset Receiver	Claim allocated assets after vesting begins

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🔄 Protocol Flow

Protocol States

ACTIVE → WARNING → PENDING → EXECUTING → COMPLETED
   ↑__________|_________|_________|
              (Owner can revive)

State Transitions

From	To	Trigger
ACTIVE	WARNING	Inactivity reaches 70% of threshold
WARNING	PENDING	Guardian confirms inactivity
PENDING	EXECUTING	Vesting period begins
EXECUTING	COMPLETED	All beneficiaries have claimed
ANY STATE	ACTIVE	Owner proves life (7-day grace period)

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User Workflows

� Owner Flow

Register → Add Guardians → Add Beneficiaries → Deposit Funds → Prove Life (Periodic)

�️ Guardian Flow

Monitor Owner → Detect Inactivity → Confirm Inactivity → Wait for Vesting

� Beneficiary Flow

Wait for Execution → Check Claimable Amount → Claim Assets → Receive Funds

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⚙️ Technical Stack

Layer	Technology
Smart Contracts	Solidity 0.8.20, Hardhat
Frontend	React 18, Vite, TypeScript
Web3	Wagmi v2, Viem, TanStack Query
Styling	CSS3 (Glassmorphism), Framer Motion
3D Graphics	Three.js, React Three Fiber

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🛡️ Security Model

Safety Mechanisms

Mechanism	Description
Owner Override	proveLife() cancels inheritance at ANY time
7-Day Grace Period	Owner can revive even after execution starts
Vesting Delay	Funds unlock gradually, not instantly
Guardian Isolation	Guardians have ZERO fund access
Reentrancy Guards	All transfers protected

Smart Contract Security

• ✅ Custom errors (gas efficient)
• ✅ Strict modifiers for access control
• ✅ Bounded arrays (max 10 guardians, 20 beneficiaries)
• ✅ Pull-over-push for fund transfers

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🚀 Getting Started

Prerequisites

• Node.js v18+
• pnpm
• MetaMask wallet

Quick Start

# Clone repository
git clone https://github.com/your-repo/afterlife.git
cd afterlife

# Install dependencies
pnpm install

# Run development server
pnpm dev

Deploy Contract (Optional)

# Arbitrum Sepolia
npx hardhat run scripts/deploy.js --network arbitrumSepolia

# Mantle Sepolia
npx hardhat run scripts/deploy.js --network mantleSepolia

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📘 User Guide

For Owners

1. Connect Wallet → Select network (Arbitrum or Mantle)
2. Register → Set inactivity threshold (e.g., 30 days)
3. Add Guardians → Trusted addresses to monitor you
4. Add Beneficiaries → Set allocations (must total ≤100%)
5. Deposit Funds → Transfer ETH/MNT to your vault
6. Prove Life → Click periodically to stay active

For Guardians

1. Enter Owner Address → Monitor their status
2. Wait for Threshold → Inactivity timer must expire
3. Confirm Inactivity → Triggers inheritance process

For Beneficiaries

1. Enter Owner Address → Check your allocation
2. Wait for Execution → Vesting must begin
3. Claim Assets → Withdraw your share based on vesting schedule

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🌐 Network Configuration

Add to MetaMask

Arbitrum Sepolia

Setting	Value
Network Name	Arbitrum Sepolia
RPC URL	https://sepolia-rollup.arbitrum.io/rpc
Chain ID	421614
Currency	ETH
Explorer	https://sepolia.arbiscan.io

Mantle Sepolia

Setting	Value
Network Name	Mantle Sepolia Testnet
RPC URL	https://rpc.sepolia.mantle.xyz
Chain ID	5003
Currency	MNT
Explorer	https://explorer.sepolia.mantle.xyz

Faucets

• Arbitrum Sepolia: Alchemy Faucet
• Mantle Sepolia: Mantle Faucet

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📄 License

MIT License - see LICENSE for details.

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