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Peercoin

PPC Launched 2012 source Historical / collapsed

Launch

• Network activated in 2012. secondary source source

Founders and creators

• Peercoin is based on an August 2012 paper that listed the authors as Scott Nadal and Sunny King. secondary source source

Origin story

• Responsible for inventing proof-of-stake consensus. secondary source source

Stated purpose

• The PPCoin paper says network security is not dependent on energy consumption in the long term, aiming for an energy efficient and more cost-competitive peer-to-peer crypto-currency. primary source source

Consensus mechanism

• Peercoin uses both proof-of-stake and proof-of-work; it is notable as the first cryptocurrency to implement the proof-of-stake consensus mechanism. secondary source source

Supply model

• No hard limit on coins; designed to attain an annual inflation rate of 1%. secondary source source
• Peercoin does not have a hard limit on the number of possible coins, but is designed to eventually attain an annual inflation rate of 1%. secondary source source

Main uses today

• Proof-of-stake is used to secure the network: the chain with longest PoS coin age wins in case of a blockchain fork. secondary source source

Key milestones

• The PPCoin paper by Sunny King and Scott Nadal is dated August 19th, 2012; the authors write that they discovered the concept of proof-of-stake and coin age in October 2011. primary source source

Sources & studies

1. coingecko.com
2. en.wikipedia.org
3. peercoin.net

Last checked: 2026-11-04 · Prices, market caps and circulating supply are left out on purpose because they change by the minute. Educational, not financial advice.

Education only, not financial advice. No signals. Backtests are hypothetical: real trading can be worse. Past results don't predict future results.