Anonymous pastebins are a spam magnet. I gated mine with proof-of-work instead of logins.
Open pastebin, no login, paste text, get a link. That is the whole appeal, and it is also why every anonymous paste service turns into a dumping ground. Bots script the post endpoint and fire off thousands of spam links, phishing kits, leaked credential lists, malware config. The usual fix is to make the thing less anonymous: force an account, bolt on reCAPTCHA, rate-limit by IP. Every one of…
Anonymous pastebins often turn into spam magnets because bots script the post endpoint, flooding the service with unwanted content. Traditional methods, such as requiring logins, implementing CAPTCHAs, or rate-limiting by IP, can hinder genuine users while easily circumvented by determined spammers. To maintain anonymity and one-click accessibility, a new solution was implemented: using proof-of-work instead of logins or payments.
By requiring energy in the form of CPU time or a small Lightning Network payment, the service ensures that each post incurs a real cost, making it economically unfeasible for spammers to post in large volumes. A Node.js script demonstrates the process, showing how a challenge is fetched, a solution found through hashing, and a paste is posted with the resulting ID. The same endpoint structure applies to the paid path, where a Lightning Network payment is made instead of hashing.
Ultimately, this approach balances the anonymity and convenience of an anonymous pastebin while preventing it from becoming a spam magnet by introducing a cost that scales with the number of posts. The service is available at paste.powforge.dev for those who wish to explore its functionality.
Written by urgent.news from Dev.to's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
