I just wanted to say that "scalable private digital cash" sounds like the most generic cryptocurrency description ever, but I checked out (what I assume to be) the repo [1], and I think it's actually super cool! Keep up the good work man.
[1] https://github.com/mimblewimble/grin/blob/master/doc/intro.m...
In Cryptocurrencies described in four words or lessmimblewimble
grin
Rust2017–2019
mimblewimble / grin
grin
Minimal implementation of the Mimblewimble protocol.
16Distinct people
19Mentions
0Explicit recommenders
5.1KGitHub stars
What to know before exploring
What it is
Minimal implementation of the Mimblewimble protocol.
GitHub
Where it is used
No documented product use was verified in the last source check.
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, 8:59:20 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 month19 dated mentions
Observed mentions: 2017-11-20 01:33:26 UTC to 2019-06-19 18:59:30 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 |
|---|---|---|---|---|---|
| Nov 2017 | 2017-11-01 00:00:00 UTC | 2017-12-01 00:00:00 UTC | 1 | 0 | 1 |
| Dec 2017 | 2017-12-01 00:00:00 UTC | 2018-01-01 00:00:00 UTC | 1 | 0 | 1 |
| Jan 2018 | 2018-01-01 00:00:00 UTC | 2018-02-01 00:00:00 UTC | 2 | 0 | 2 |
| Feb 2018 | 2018-02-01 00:00:00 UTC | 2018-03-01 00:00:00 UTC | 1 | 1 | 0 |
| Mar 2018 | 2018-03-01 00:00:00 UTC | 2018-04-01 00:00:00 UTC | 1 | 0 | 1 |
| Apr 2018 | 2018-04-01 00:00:00 UTC | 2018-05-01 00:00:00 UTC | 0 | 0 | 0 |
| 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 | 0 | 0 | 0 |
| Sep 2018 | 2018-09-01 00:00:00 UTC | 2018-10-01 00:00:00 UTC | 0 | 0 | 0 |
| Oct 2018 | 2018-10-01 00:00:00 UTC | 2018-11-01 00:00:00 UTC | 1 | 0 | 1 |
| Nov 2018 | 2018-11-01 00:00:00 UTC | 2018-12-01 00:00:00 UTC | 1 | 0 | 1 |
| Dec 2018 | 2018-12-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 1 | 0 | 1 |
| Jan 2019 | 2019-01-01 00:00:00 UTC | 2019-02-01 00:00:00 UTC | 9 | 2 | 7 |
| Feb 2019 | 2019-02-01 00:00:00 UTC | 2019-03-01 00:00:00 UTC | 0 | 0 | 0 |
| Mar 2019 | 2019-03-01 00:00:00 UTC | 2019-04-01 00:00:00 UTC | 0 | 0 | 0 |
| Apr 2019 | 2019-04-01 00:00:00 UTC | 2019-05-01 00:00:00 UTC | 0 | 0 | 0 |
| May 2019 | 2019-05-01 00:00:00 UTC | 2019-06-01 00:00:00 UTC | 0 | 0 | 0 |
| Jun 2019 | 2019-06-01 00:00:00 UTC | 2019-07-01 00:00:00 UTC | 1 | 0 | 1 |
From the project README
An excerpt from the repository, fetched Nov 13, 2026.
Read the project’s introduction
Grin
Grin is an in-progress implementation of the Mimblewimble protocol. Many characteristics are still undefined but the following constitutes a first set of choices:
Clean and minimal implementation, and aiming to stay as such.
Follows the Mimblewimble protocol, which provides hidden amounts and scaling advantages.
Cuckoo Cycle proof of work in two variants named Cuckaroo (ASIC-resistant) and Cuckatoo (ASIC-targeted).
Relatively fast block time: one minute.
Fixed block reward over time with a decreasing dilution.
Transaction fees are based on the number of Outputs created/destroyed and total transaction size.
Smooth curve for difficulty adjustments.
To learn more, read our introduction to Mimblewimble and Grin.
Status
Grin is live with mainnet. Still, much is left to be done and contributions are welcome (see below). Check our mailing list archives for the latest status.
Contributing
To get involved, read our contributing docs.
Find us:
Telegram: Grin Development
Chat: Keybase, more instructions on how to join here.
Getting Started
To learn more about the technology, read our introduction.
To build and try out Grin, see the build docs.
Philosophy
Grin likes itself small and easy on the eyes. It wants to be inclusive and welcoming for all walks of life, without judgement. Grin is terribly ambitious, but not at the detriment of others, rather to further us all. It may have strong opinions to stay in line with its objectives, which doesn't mean disrespect of others' ideas.
We believe in pull requests, data and scientific research. We do not believe in unfounded beliefs.
Credits
Tom Elvis Jedusor for the first formulation of Mimblewimble.
Andrew Poelstra for his related work and improvements.
John Tromp for the Cuckoo Cycle proof of work.
License
Apache License v2.0.
Read the full README on GitHub