Originally, Monero used the Cryptonight PoW algorithm, then started modifying it to thwart ASICs getting large parts of the network hash rate.
What is the timeline of these changes ?
Monero Stack Exchange is a question and answer site for developers and users of the secure, private and untraceable cryptocurrency Monero. It only takes a minute to sign up.Sign up to join this community
Monero's genesis block dates back from april 2014. The first PoW change was in
The full history is:
| block | date | PoW algorithm |---------|------------|-------------- | 0 | 2014-04-18 | Cryptonight (retroactively CNv0) | 1546000 | 2018-04-06 | Cryptonight variant 1 (CNv1) | 1685555 | 2018-10-18 | Cryptonight variant 2 (CNv2) | 1788000 | 2019-03-09 | Cryptonight variant 4 (CNv4)
Monero is planning to switch to Random X, a new PoW algorithm not based on Cryptonight. This will likely be either near october 2019, or april 2020, depending on how well review goes.