Hashcash PoW Faucet

Create an anonymous address and claim credit points by completing Hashcash-style anti-spam Proof-of-Work tasks. Credits can be sent to other accounts without fees.

This tech demo also includes a simple redemption mechanism whereby burning credit points may result in small tips in one of the following supported cryptocurrencies:

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Redeem / tips (experimental)

Disclaimer: Credits in this demo are play points only. They have no monetary value, do not represent a claim against us and have no fixed or implied exchange rate.

To request a redeem, you must own at least 20 credits. Depending on the coin, each redeem request permanently burns a fixed number of credits (e.g. 10) from your balance, even if no tip is sent.

Any crypto tip is purely discretionary, may be small, irregular or skipped entirely, and can be changed or discontinued at any time. There is no guaranteed probability, minimum or maximum payout and no right or expectation of any payment.

Tip address: Currency:

Redeem log

Shows the last 10 redeem requests from the server audit queue (public faucet log).

No redeems yet.

What is this?

This small project is a tribute to Hashcash and early cypherpunks and combines two ideas:

Hashcash-style Proof of Work: Every signup and claim requires solving a stateless PoW challenge, inspired by the original Hashcash anti-spam mechanism proposed by Adam Back in 1997.
Crypto-inspired accounts: Each user gets a "private key" after a PoW signup challenge that is stored in this browser and used to authenticate with the server. The server tracks your credits using an address derived from this private key, similar to a very simple wallet address, but never stores the key itself.
No registration or personal data: You can create and use an account without email, username, or KYC. The server only sees anonymous keys and derived addresses, and there is no traditional signup form.
Limited account creation per IP/day (demo rule): For fairness and to limit abuse, this demo only allows a limited number of signups per IP address per day.

Hashcash PoW Faucet

Account management

Send credits

Redeem / tips (experimental)

Redeem log

What is this?