Steve Weis works at Anthropic. He posted four words on X. They read, "CLAUDE FOUND THE SEEDS." The post pulled 9,320 likes.
What seeds? The NSA gave math groups five numbers back in 2000. Those numbers built five standard curves. A curve is a math shape. Apps use curves to lock data. Banks and browsers use these curves daily. For 25 years, the numbers stayed a mystery. Some people feared a hidden flaw inside them.
Weis asked Claude to study the numbers. Claude spotted a strange pattern fast. Four numbers shared one rare trait. The odds of that trait were 1 in 5,810. Claude traced the pattern to an old tool. That tool is called lrand48. It turns a start time into numbers. The start times came from 1997 and 1998. Claude solved the riddle in under 30 minutes. A human team had chased that same riddle for 25 years.
Anthropic runs a bounty for finds like this. Claude earned $36,864 for the work. Anthropic gave that money to a security group. The group is called the Internet Security Research Group.
CoinDesk covered the bitcoin angle too. Bitcoin skipped these NSA curves from day one. Bitcoin wallets use a simpler curve. Its name is secp256k1. That simpler curve leaves little room for a hidden flaw. Satoshi Nakamoto picked that curve long before this mystery ever came up.
Why did this post catch fire? People feared a spy agency hid a flaw in trusted math. An AI tool answered that fear in half an hour. A fast answer calmed an old worry.
What does this say about us? We now ask machines to check our oldest tools. Claude solved a puzzle that stumped experts for 25 years. That shift shows where trust moves next, in plain view. A chatbot did the job cryptographers could only guess at since 2000. People trust a new tool to grade an old one, and the grade came back clean.