Heirloom

Heirloom is a cross-chain inheritance protocol that automates asset transfers

Heirloom

Created At

HackMoney 2026

Project Description

Heirloom (DeFi Legacy) is a cross-chain inheritance protocol that automates digital asset transfers using cryptographic proof-of-life mechanisms. It solves the long-standing problem of lost private keys and ensures secure, fair, and market-safe inheritance of crypto assets.

Built as decentralized infrastructure, Heirloom combines identity, smart contract logic, decentralized storage, and automated execution to preserve generational wealth.

Over $100B+ worth of crypto assets are inaccessible due to lost keys or death. Traditional inheritance systems fail because:

  • Private keys die with owners
  • No native crypto inheritance frameworks
  • Legal wills don’t work on-chain
  • Sudden liquidation harms heirs and markets

Heirloom introduces:

  • Proof-of-life heartbeats
  • Automated settlement after inactivity
  • Age-locked inheritance for minors
  • Social recovery via guardians
  • Market-safe liquidation mechanisms

All enforced trustlessly by smart contracts.

How it's Made

🔁 Core User Flow

1️⃣ Will Creation

  • Wallet + ENS verification
  • Heir designation
  • Heartbeat configuration
  • Asset deposit
  • Optional guardian setup

2️⃣ Active Monitoring

  • Periodic heartbeat transactions
  • Multi-stage alerts (Email, SMS, XMTP)

3️⃣ Settlement

  • Triggered after inactivity
  • Keys released to heir
  • Assets distributed gradually

4️⃣ Claim

  • Instant access if heir is adult
  • Trust mode if heir is a minor

🧰 Technology Stack

| Layer | Technology | |------|-----------| | Identity | ENS | | Smart Contracts | Sui Move | | Storage | Walrus, IPFS | | Execution | Uniswap v4 | | Messaging | XMTP | | Governance | DAO + Multisig |

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