The origins of the ECDSA curve seeds have been revealed, showing they were generated using the C library's lrand48 random-number generator, seeded with a Unix timestamp. This discovery resolves a long-standing mystery in the cryptographic community and provides evidence that the curves were chosen without intentional weaknesses. The seeds were found using a model called Claude, which was able to recognize the output of the lrand48 generator and recover the initialization state. The discovery has implications for the use of ECDSA in various cryptographic applications.