Heavenkey – Digital Will Web3

Sign and secure your digital will using Web3 wallets. EIP-712 signature, no server storage, 100% client-side privacy.

Heavenkey is the first WordPress plugin that allows users to write and off-chain sign a digital will — directly from your website, no coding required.

How it works

1. Add the [heavenkey_form] shortcode to any page or post.
2. Visitors connect their Web3 wallet (MetaMask, Ledger, WalletConnect, etc.).
3. They enter their name, a beneficiary wallet address, and a personal message.
4. Clicking Sign with Wallet signs the data using EIP-712 (gas-less) directly in the browser.
5. The result is a tamper-proof signed JSON including wallet address, timestamp, message, and signature.

Key features:
* 100% client-side – no server storage.
* Privacy by design – all data stays in the browser.
* Secure by default – EIP-712 signature for proof of authorship.
* Translation-ready – .pot template included.
* Theme-compatible – works with any theme or builder.
* Blockchain-neutral – supports Ethereum, Polygon, Arbitrum, BNB, Base, and other EVM chains.

Disclaimer: Heavenkey is not a legal replacement for an official notarial will. It provides cryptographic proof of intent. Consult local regulations for legal validity.

Who Can Use Heavenkey?

• 👨‍👩‍👧‍👦 Private individuals & families – create a personal digital will or message for loved ones.
• 🧑‍⚖️ Lawyers & legal-tech consultants – offer a digital pre-declaration tool to clients.
• 🎨 Artists & creators – sign a statement regarding future use of their work or profiles.
• 🏛️ DAO members & multisig signers – publish exit intents or succession signals.
• 🪙 Crypto holders & DeFi users – leave instructions about wallets or fund distribution.
• 💼 Start-ups & fintech founders – time-proof signed intents (e.g. on IPFS).

Security & Privacy

All signing occurs entirely in the user’s browser. No private key, seed phrase, or sensitive data is stored or transmitted.

Signature Verification

Signed JSON files can be verified using:
– ✅ The official browser-based tool: https://www.francescoventura.it/heavenkey/
– 📦 GitHub source and verification: https://github.com/fra301076/heavenkey-digital-will-web3/releases/tag/v1.0.3

Heavenkey uses EIP-712 for verifiable, tamper-proof signatures.
All verification happens client-side with no backend or storage involved.

Source Code Notice

This plugin uses the Ethers.js library, which is open-source under the MIT license.
You can view the full uncompressed source code here:
https://github.com/ethers-io/ethers.js

The full source code for this plugin is also available here:
https://github.com/fra301076/heavenkey-digital-will-web3