Peppercoin is a cryptographic system for processing micropayments. Peppercoin Inc. was a company that offers services based on the peppercoin method.The peppercoin system was developed by Silvio Micali and Ron Rivest and first presented at the RSA Conference in 2002 (although it had not yet been named.) The core idea is to bill one randomly selected transaction a lump sum of money rather than bill each transaction a small amount.