Peercoin, also known as PPCoin (an abbreviation for Peer-to-Peer Coin), is a cryptocurrency first mined on August 16, 2012. Unlike other cryptocurrencies, there is no limit to the number of coins that can be created. Peercoin increases energy efficiency by maintaining an annual inflation rate of 1%. This also allows for "greater scalability" over time.
- Peercoin at Wikipedia
- Peercoin News at CoinDesk
- Wary of Bitcoin? A guide to some other cryptocurrencies by Ian Steadman (May 7, 2013), Wired
- Third largest cryptocurrency peercoin moves into spotlight with Vault of Satoshi deal by Danny Bradbury (November 7, 2013), CoinDesk
- In Bitcoin’s Orbit: Rival Virtual Currencies Vie for Acceptance by Nathaniel Popper (November 24, 2013), The New York Times
- Bitcoin Competitors: What You Should Know About 6 Alternative Cryptocurrencies by Ryan W. Neal (January 14, 2014), International Business Times