Topic: [ANN] Bitcoin PoW Upgrade Initiative - page 10. (Read 42931 times)

No need to be fancy, just triple SHA256 would be enough to change the current dynamic and not deviate too much from Satoshi's plan.

PoS doesn't work, see this PDF https://download.wpsoftware.net/bitcoin/pos.pdf

const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";

I believe the best option would be the addition of multiple proofs of work. Perhaps 4 (including SHA256).

There are many benefits: diversity of hardware, it dilutes the impact of centralised technology in one method, doesn't totally punish those who invested in ASICs - more likely to gain support.

Also, we could round robin different types of method, this would mean incompatible hardware would have 'down time', lowering the electric cost in relation to the hardware - also good for decentralisation.

If you had 4 proof of work methods, you could require that 2 seperate methods have found a block before a method is allowed to commence hashing again.

This also would allow for a soft fork if one method became malicious so that method could no longer produce blocks. Keeping each method honest.

I created a topic on this idea, possibly in the wrong location:
https://bitcointalksearch.org/topic/proposal-malice-reactive-proof-of-work-additions-mr-powa-self-defense-hf-1832581

Denying scientifically proven, empirical evidence under the guise of religious views is not valid. It's insanity. And luke-jr is not a developer.

Such a proposal, changing POW, is a sign of insanity.
It wil be the end of the trust in BTC, the network will be unsecure for a long time and BTC will become a shitcoin

there is something here - its about "scaring" miners to stop signaling BU .. hope someone else can run w this idea.. changing POW is a bad idea - it will push all "good" miners  to BU

THIS!!! So fucking much!

There will be no PoW change, this is merely a propaganda act by Blockstream to spread FUD about Bitcoin Unlimited. Core is about to lose the vote and now they're butthurt about it.

And luke-jr is a despicable idiot. Nothing more. Certainly not a developer of or contributor to anything, other than outdated views and retarded ideas.

If you're looking for a new Proof-of-Work, I can recommend the Equihash Proof-of-Work that we selected for Zcash.

We studied Proof-of-Work functions for a long time, chose Equihash (https://z.cash/blog/why-equihash.html), hired a legendary hacker to study it and write his evaluation (https://z.cash/blog/the-zcash-equihash-analysis.html), gave out $30,000 dollars in bounties to make the best implementations for CPU and GPU (https://z.cash/blog/announcing-miner-contest.html), got lots of good open source implementations (https://zcashminers.org/submissions), launched the network (https://z.cash/blog/zcash-begins.html), and mining has been working very well at scale ever since (http://www.coinwarz.com/network-hashrate-charts/zcash-network-hashrate-chart).

The reasons we chose Equihash are:

* it is memory-oriented rather than computation-oriented which makes it less cost-efficient to implement in ASIC,
* it is asymmetric, meaning that verifying a solution is much cheaper than generating that solution (_even_ starting from the nonce that generates that solution); In particular it requires substantial RAM (hundreds of MB, depending on parameter choices) to generate a solution (or an attempted solution), but it does not require that much RAM to verify a solution. This may be useful for constrained implementations such as SPV wallets in constrained hardware, implementation inside the Ethereum VM, etc.
* it has a good level of scientific investigation behind it, which makes me think it relatively unlikely than an algorithmic breakthrough would enable someone to find solutions much cheaper than the competition. This has been born out by the experience of live Zcash mining, where developers have made tremendous progress on micro-optimization, but as far as we know no algorithmic breakthroughs.

A reason to choose Equihash is that you benefit from the all of the research and implementation work described above. There are many well-tested implementations available, both open source and proprietary.

LOL. Core has offially jumped off the deep end. This proposal is insanity.

Can't win the vote by means that were established since 2009, and for good reasons (The Byzantine Generals Problem) - No Problem! Let's just change the way voting works.

You guys just proved that YOU are the ones trying to take control over Bitcoin. YOU are the ones trying to centralize it. You should be ashamed of yourselves for this blatant attempt to hijack the blockchain.

Go fuck yourselves, you dimwitted fanatics. But what did I even expect from people like luke-jr that officially stated that the Sun orbits around the Earth, and not vice versa? It's like talking to someone that's never even been to a school before.

But hey, be my guest, have fun with your centralized altcoin controlled by Blockstream. Great choice!

FYI: There aren't even any real developers contributing to this proposal - because they are not insane. Nobody with half a brain would put his name under this stinking turd of mental diarrhea. This is merely a marketing ploy to stir up shit. Luke-jr is not a developer, and he is far from being renowned. He's a religious fanatic that's paid to spread propaganda in Core's bitcoin reddit. I can provide you some of his quotes if you're interested. In short, he said that the death sentence is justified, that slavery is not immoral, that gays should not be allowed to marry, that the Sun orbits around the Earth, that masturbation and any kind of sexual relation not leading to procreation is a sin, and many more nonsensical statements like these.

Just google "luke-jr insane religious fanatic best-of quotes" or take a look at this reddit thread https://www.reddit.com/r/Buttcoin/comments/4936kw/lukejr_is_a_seriously_a_super_crazy_person_quotes/ - This guy has some messed up views. He is certainly not a developer or contributor. He is just trying to stir shit up because Core is becoming desperate since it's become inevitable that SegWit will not be activated.

Yes, I noticed that BitFury has been sending their people to meet with Bitmain recently; maybe they are feeling a bit nervous due in part to this PoW talk.

there is something here - its about "scaring" miners to stop signaling BU .. hope someone else can run w this idea.. changing POW is a bad idea - it will push all "good" miners  to BU

... I think a large enough economic majority will make the current miners come along in a UASF.  The miners have no interest in mining worthless coins after all.

The current miners will still have a huge advantage with the extra-POW soft-fork model, since SHA256 hashing power as well is required to find blocks, so I think a large enough economic majority will make the current miners come along in a UASF.  The miners have no interest in mining worthless coins after all.  They will have to share their power and some of their income with CPU miners, since none of them can operate alone, but will likely still have most of the payout.  It is easier to recruit another CPU miner for peanuts, than getting enough ASIC hashing power to compete at the current difficulty.  The most challenging task here is to find the right balance between first and second POW difficulty, and how to adjust this autonomously in a way compatible with the current difficulty adjustment scheme.

Regarding deterrence it would be cool to change the PoW algorithm at the same moment BU activates.

....yeah... I don't think that works... For reasons others commented in the thread.

Keep working on it though-- the mutually assured destruction angle seems interesting. It may be possible to salvage the concept. I might even give it a few cycles.

....yeah... I don't think that works... For reasons others commented in the thread.

Keep working on it though-- the mutually assured destruction angle seems interesting. It may be possible to salvage the concept. I might even give it a few cycles.

Alternative that doesn't screw over the all the miners.

https://bitcointalksearch.org/topic/defensive-nuclear-weapon-armageddon-avoidance-proof-of-coinbase-poison-pill-1833046