COcomepradz·Aug 16, 2018
Casper FFG research repository is here https://github.com/ethereum/casper
. Last committed before the sharding and casper research merger.
In A tweet storm explaining the history and state of Ethereum's Casper researchethereum
casper
Python2017–2018
ethereum / casper · Archived
casper
Casper contract, and related software and tests
6Distinct people
6Mentions
0Explicit recommenders
686GitHub stars
What to know before exploring
What it is
Casper contract, and related software and tests
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
No recommendation phrase was found in the indexed comments.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by month6 dated mentions
Observed mentions: 2017-05-28 21:16:28 UTC to 2018-08-16 14:59:12 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| May 2017 | 2017-05-01 00:00:00 UTC | 2017-06-01 00:00:00 UTC | 1 | 0 | 1 |
| Jun 2017 | 2017-06-01 00:00:00 UTC | 2017-07-01 00:00:00 UTC | 1 | 0 | 1 |
| Jul 2017 | 2017-07-01 00:00:00 UTC | 2017-08-01 00:00:00 UTC | 0 | 0 | 0 |
| Aug 2017 | 2017-08-01 00:00:00 UTC | 2017-09-01 00:00:00 UTC | 1 | 0 | 1 |
| Sep 2017 | 2017-09-01 00:00:00 UTC | 2017-10-01 00:00:00 UTC | 0 | 0 | 0 |
| Oct 2017 | 2017-10-01 00:00:00 UTC | 2017-11-01 00:00:00 UTC | 0 | 0 | 0 |
| Nov 2017 | 2017-11-01 00:00:00 UTC | 2017-12-01 00:00:00 UTC | 0 | 0 | 0 |
| Dec 2017 | 2017-12-01 00:00:00 UTC | 2018-01-01 00:00:00 UTC | 0 | 0 | 0 |
| Jan 2018 | 2018-01-01 00:00:00 UTC | 2018-02-01 00:00:00 UTC | 1 | 0 | 1 |
| Feb 2018 | 2018-02-01 00:00:00 UTC | 2018-03-01 00:00:00 UTC | 0 | 0 | 0 |
| Mar 2018 | 2018-03-01 00:00:00 UTC | 2018-04-01 00:00:00 UTC | 0 | 0 | 0 |
| Apr 2018 | 2018-04-01 00:00:00 UTC | 2018-05-01 00:00:00 UTC | 1 | 0 | 1 |
| May 2018 | 2018-05-01 00:00:00 UTC | 2018-06-01 00:00:00 UTC | 0 | 0 | 0 |
| Jun 2018 | 2018-06-01 00:00:00 UTC | 2018-07-01 00:00:00 UTC | 0 | 0 | 0 |
| Jul 2018 | 2018-07-01 00:00:00 UTC | 2018-08-01 00:00:00 UTC | 0 | 0 | 0 |
| Aug 2018 | 2018-08-01 00:00:00 UTC | 2018-09-01 00:00:00 UTC | 1 | 0 | 1 |
What Hacker News says
6 sourcesWell not quite. The test net is actually a hybrid of proof of work and proof of stake [1]. Proof of work is used as the main decider in the case of a fork, however if long forks are seen then checkpoints validated by proof of stake are used.
The slashing function is in the contract [2] but there is actually no incentive to duplicate votes on the testnet since there is only rewards for voting (block rewards are given to proof of work miners).
[1] https://github.com/ethereum/casper/blob/master/IMPLEMENTATIO...
[2] https://github.com/ethereum/casper/blob/master/casper/contra...
In Ethereum Sharding FAQThe first casper PoC was in 2015, and PoC2 was in early 2016.[1] However, there was a pivot from the early "consensus-by-bet" to the current version, which is based on "prepare and commit" messages. I think the current one is PoC4. [2,3]
1. https://blog.ethereum.org/2016/03/05/serenity-poc2/
2. https://github.com/ethereum/casper
3. https://github.com/ethereum/pyethereum/pull/791
In Ethereum Proof of Stake FAQ>>[...] it might never be completed.*
"Complete" is certainly in the eyes of the beholder, but Viper's author seems to think the language is "complete enough" to have started writing Ethereum's new Proof-of-Work/Proof-Of-Stake hybrid system (aka Casper contracts[1]) in Viper[2][3].
[1] https://www.ethnews.com/proof-of-stake-vitalik-buterin-share...
[2] https://ethereumclassic.github.io/blog/2017-03-13-viper/
[3] https://github.com/ethereum/casper/blob/master/README.md
In How to Learn Solidity: The Ultimate Ethereum Coding GuideThis is wrong. Ethereum's proof of stake algorithm is named Casper, and is already open source, you can see the repository here:
https://github.com/ethereum/casper
There's even a Github project where you can see that the current state is work on the "Fork choice/chain logic". This was started 6 days ago:
https://github.com/ethereum/casper/projects/1
The next release (Metropolis) will afaik contain a first implementation of proof of stake which will run in parallel with their proof of work algorithm (last I heard was that every 1000th transaction will be run via proof of stake, but I may be wrong here).
In Blockchains are the new Linux, not the new Internet