The Club HashCash Wallet is a non-custodial browser extension that allows you to generate or import an HCASH wallet, view your balance and transaction history, and send HCASH on the HashCash proof-of-work blockchain.
The following data is stored exclusively on your device using Chrome's chrome.storage.local API:
Your password, seed phrase, and private keys are never transmitted to any server.
The extension communicates only with https://www.hashmind.tools/api/hchain, which is a server-side proxy for the HashCash testnet block explorer. The following data is sent:
No IP addresses, device identifiers, or personal information are logged by this proxy.
The hashmind.tools proxy forwards address queries to the HashCash testnet block explorer (explorer.hashcash-test.network). This is a public blockchain explorer — wallet addresses submitted to it are public by nature of the blockchain.
Your seed phrase is encrypted on-device before storage. The encryption uses AES-256-GCM with a key derived from your chosen password (PBKDF2, SHA-256, 250,000 iterations, random salt). Without your password, the encrypted data cannot be decrypted.
We strongly recommend using a strong, unique password and writing down your recovery phrase and storing it securely offline.
This extension is not directed at children under 13. We do not knowingly collect information from children.
If this policy is updated, the "Last updated" date above will reflect the change. Continued use of the extension after changes constitutes acceptance of the updated policy.
Questions? Reach out via @hashmindtools or open an issue on the GitHub repository.