After bullshitting [1] their way out of an earlier scam [2].
[3] shows one of the 48 devfee coinbases that is supposedly unspendable until Sep 29, 2020,
but a full node query [4] on the UTXO set shows that all of the devfees (total of 1M XBG) are in fact spent.
The line of code they point to in [1] is a red herring. The actual code used for maturity verification is at [5] which shows all coinbases treated uniformly with a 1 day maturity.

[1] https://bitgrin.substack.com/p/the-bitgrinio-takeover

[2] https://web.archive.org/web/20190727183718/http://bitgrin.io/

[3] https://explorer.bitgrin.dev/block/64c07b8ec36724ba537523f4adbdaa561c6bf56b1a5bbc0c2c39bfa80e6f49f4

[4] http://localhost:8513/v1/txhashset/outputs?start_index=1 on any machine running a full node with the API enabled

[5] https://github.com/bitgrin/bitgrin/blob/master/chain/src/txhashset/utxo_view.rs#L130

Why is Cuckatoo32 missing?

Factoring extremely large prime numbers is quite trivial.

Factoring extremely large composite numbers on the other hand...

Among the core devs, I am one of the few with little Rust programming experience.

I wrote large parts of https://github.com/mimblewimble/grin/blob/master/core/src/consensus.rs and https://github.com/mimblewimble/grin/blob/master/core/src/core/pmmr/pmmr.rs but most of my efforts are in the Cuckoo Cycle repository.

The twitter author would do well to substantiate their criticism on code quality.

I agree our documentation is below par and we hope to make improvements in the coming years as the code stabilizes.

Final CuckARoo tweak announced at

https://forum.grin.mw/t/introducing-the-final-tweak-cuckarooz

A scam is a low effort money grab.

Writing a blockchain from scratch is a substantial effort (which is why there's only a few dozen such codebases).

Launching fairly, without any premine or instamine, leaves devs incapable of a money grab.

Projects with both of these qualities are few and far between...

Autolykos is very different from Equihash in memory requirements.

Equihash searches for an arbitrary size 2^k subset of indices,
whose corresponding items must xor to 0 (as well as satisfy
other conditions on the ordered binary tree of indices and items).
Memory is needed to sort and combine partial solutions.
Without memory, finding a solution would take longer than the age of the universe.

Autolykos instead generates the possible subsets as genIndexes(m||nonce),
as shown in Algorithm 1 of https://docs.ergoplatform.com/ErgoPow.pdf
The element at an index j is trivially computed as H(j||M||pk||m||w)
No memory at all is required for that.
It could be used to cache the hash computation of elements, but that is at best
a constant factor speedup.

Because a mean ASIC would need over 4GB of external DRAM, limiting its advantage over a GPU
Because a lean ASIC, while still needing 128MB of on-chip SRAM, incurs a computational overhead of having to compute 64 siphashes even if only one is needed.
And last but not least, because each Cuckaroo29 variant only lasts for 6 months before being replaced by a substantially different one, leaving no time to ROI.

Just like the death penalty is 100% effective at preventing homocides?

The more serious your readiness to switch PoW, the more stealthy the ASICs will be operated...
until you're not sure whether they operate at all.
Or whether they're FPGAs, that will be very unimpressed with your PoW switch.

How does it have better ASIC resistance, when Equihash is claimed to have superlinear time-memory tradeoffs (TMTO)
while Autolykos can be solved with no memory and constant slowdown?

IMHO it's closer to Ethash than to Equihash.

There's more to mining than hashing:

http://cryptorials.io/beyond-hashcash-proof-work-theres-mining-hashing/

Grin no longer uses cuckarood...

Release of Grin into the market is controlled by mathematics dictating 1 Grin/sec, which is beyond the control of any cartel.

A cartel of all chip manufacturers, by TSCM, Samsung, Intel, etc. could produce superior Grin ASICs and keep them all to themselves, running them in their own data centers, and thus mine a majority of Grins. It would still be 1 Grin per second.
There would be little point in doing that for Grin (at a huge loss) when it could be done for Bitcoin instead (at a smaller loss).
In any case, in that exceedingly unlikely event, Grin could then change PoW.


Monero is just one ASIC away from realizing that their quest for ASIC resistance is futile.

Mooncoin claims to have an eventual emission of

INT(0.29531*INT(19697202017/(INT(nHeight/100000)*100000)))

which becomes 0 at height 19697300000, so it's not not endless rewards.

Anyway, your argument would be better served by looking at less obscure coins with uncapped emission, such as Monero. Please explain how Monero is a failure.

Dogecoin and Monero have tail emissions, i.e. after an initial period of decreasing rewards, at some time they switch to constant rewards.

Grin is the first example of a coin with a never changing reward, from launch and forever at 1 Grin per second.

The forum moved to http://forum.grin.mw/ as we had lost control of the old domain.
Please update your bookmarks and if possible, notify websites of the update when you spot the old domain.

He's calling anything with a premine or mining tax a scam.

Btw, while Beam does have a dev tax of 12% over all emission, they did not have any premine.

Sign the message "i no money" with said key as proof of knowledge, or take your scam elsewhere.

Try adding www, i.e. https://www.grin-forum.org/

Because in all likelihood no-one will ever be able to find two different private keys mapping to the same address.
And if they do (against all odds), then in all likelihood the address will not have a balance.