Secure your digital legacy on-chain
Register assets, set beneficiaries, and automate transfers with cryptographic proof. No lawyers. No paperwork. Lineage replaces traditional inheritance with smart contract automation, reducing settlement from months to minutes.
Built on Ethereum-compatible blockchain with UUPS upgradeable contracts, multi-jurisdiction compliance, and EIP-712 cryptographic verification. Open source and auditable.
Built on non-negotiable principles
Four core principles that ensure trust, transparency, and consistency.
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Separation of Concerns
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Ownership, inheritance, and verification stay separate. Each handles its own job without interference.
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Deterministic Ownership
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The blockchain is the single source of truth. Every ownership record is immutable and verifiable.
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Off-chain Extensibility
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Manage documents and legal proofs off-chain while keeping on-chain records secure.
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Event-driven Architecture
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Backend mirrors the blockchain in real-time. No drift. No desync.
Smart Contracts
Core Principles
Events Monitored
Roles Defined
How it works
Blockchain meets legal compliance. Asset registry meets inheritance automation.
Lineage Controls Ownership
PropertyRegistry must call LineageCore for every ownership change. Strict hierarchy. No exceptions.
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Ownership Management
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Registry Control
Cryptographic Proof Layer
Verifiable ownership and inheritance automation backed by cryptographic proofs.
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Blockchain Verification
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Proof Generation
Legal Jurisdiction Support
Protocol automation meets local requirements. Multi-jurisdiction compliance built in.
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Jurisdiction Support
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Legal Framework
"Finally, a way to transfer digital assets without endless legal paperwork. Cryptographic proof replaces the notary."
Protocol Contributor
Open Source Developer
Lineage replaces traditional inheritance processes — wills, notaries, probate court — with verifiable smart contracts. Asset owners retain full control until trigger conditions are met, at which point transfer executes automatically without intermediaries.
Questions?
Everything you need to know about decentralized inheritance, in plain language.
What is Lineage?
A decentralized asset registry and inheritance layer on blockchain. Register assets, set beneficiaries, and automate transfers with cryptographic proof. It replaces traditional inheritance processes with smart contract automation.
How does ownership verification work?
The blockchain is the single source of truth. Every ownership change routes through PropertyRegistry to LineageCore, ensuring verifiable records at all times. Cryptographic hashes provide tamper-proof audit trails for every transaction.
What makes Lineage different from a traditional will?
Traditional wills require lawyers, notaries, and probate court — often taking months or years to settle. Lineage automates transfers via smart contracts with cryptographic proof, eliminating intermediaries and reducing settlement time from months to minutes.
Can I manage documents off-chain?
Yes. Store legal documents, proofs, and metadata off-chain via IPFS while keeping ownership records secure and immutable on-chain. This gives you the best of both worlds: blockchain security with practical document management.
How does inheritance automation work?
Set beneficiaries and trigger conditions (time-based, death confirmation via oracle, or inactivity). When conditions are met, assets transfer automatically via smart contracts. Actual legal transfer still depends on local jurisdiction requirements.
Can I use Lineage for crypto assets only?
Lineage supports both on-chain crypto assets and off-chain property registration. The PropertyRegistry contract handles ERC-721 tokenized assets while the off-chain extensibility layer supports traditional property documentation with IPFS metadata storage.
How are verifiers chosen and vetted?
Verifiers are assigned the VERIFIER_ROLE by contract administrators. The protocol supports multi-signature verification and EIP-712 typed signatures for gas-efficient off-chain claims. The VerificationRegistry maintains a trusted verifier registry.
Is it legal in my country?
The protocol provides the automation layer. Legal validity varies by jurisdiction. Multi-jurisdiction compliance is built-in via configurable governance rules and the Governance API (GOV_API_ROLE) for government system integration.
How do I get started?
Check out our GitHub for source code, documentation, and integration guides. Developer integration starts with the contract deployment sequence and API documentation. Join the community for support and updates.
What happens if I lose my private keys?
Lineage supports oracle-based recovery mechanisms and multi-sig configurations. You can designate backup verifiers and configure governance rules for key recovery. Always maintain secure backups of your cryptographic keys.
Ready to build?
Explore the source code, integrate the protocol, or contribute to the project.