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

Francesco Ventura

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.
<h3>How it works</h3>
<ol>
<li>Add the <code>[heavenkey_form]</code> shortcode to any page or post. </li>
<li>Visitors connect their Web3 wallet (MetaMask, Ledger, WalletConnect, etc.). </li>
<li>They enter their name, a beneficiary wallet address, and a personal message. </li>
<li>Clicking Sign with Wallet signs the data using EIP-712 (gas-less) directly in the browser. </li>
<li>The result is a tamper-proof signed JSON including wallet address, timestamp, message, and signature.</li>
</ol>
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 – <code>.pot</code> template included. 
* Theme-compatible – works with any theme or builder. 
* Blockchain-neutral – supports Ethereum, Polygon, Arbitrum, BNB, Base, and other EVM chains.
<blockquote>
Disclaimer: Heavenkey is not a legal replacement for an official notarial will. It provides cryptographic proof of intent. Consult local regulations for legal validity.
</blockquote>
<h3>Who Can Use Heavenkey?</h3>
<ul>
<li>👨‍👩‍👧‍👦 Private individuals & families – create a personal digital will or message for loved ones. </li>
<li>🧑‍⚖️ Lawyers & legal-tech consultants – offer a digital pre-declaration tool to clients. </li>
<li>🎨 Artists & creators – sign a statement regarding future use of their work or profiles. </li>
<li>🏛️ DAO members & multisig signers – publish exit intents or succession signals. </li>
<li>🪙 Crypto holders & DeFi users – leave instructions about wallets or fund distribution. </li>
<li>💼 Start-ups & fintech founders – time-proof signed intents (e.g. on IPFS).</li>
</ul>
<h3>Security & Privacy</h3>
All signing occurs entirely in the user’s browser. No private key, seed phrase, or sensitive data is stored or transmitted.
<h3>Signature Verification</h3>
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.
<h3>Source Code Notice</h3>
This plugin uses the <a href="https://github.com/ethers-io/ethers.js" rel="nofollow ugc">Ethers.js</a> 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

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