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Topic: Which Proof of Stake System is the Most Viable - page 13. (Read 25775 times)

legendary
Activity: 1302
Merit: 1008
Core dev leaves me neg feedback #abuse #political
I do not like their cloak and dagger behavior with the source-code and only releasing it to peer review after they "feel" the world is ready.

https://bitbucket.org/JeanLucPicard/nxt/src

Care to elaborate?

The code as released doesn't solve the nothing at stake problem.  It also can be hard forked by creating an alternate chain longer than 720 blocks.   NXT promises there is some magical code (EC and TF) which will resolve these problems but the world isn't ready for it yet.

Our main developer wants to answer you. But he does not use BTT anymore;

https://twitter.com/comefrombeyond/statuses/470997528604049408

Sounds like he want to pick DaT's brain.

If he had a solid solution he would be releasing without the fanfare.  Just my opinion.
newbie
Activity: 29
Merit: 0
Bitshares and NXT are both exciting. I lean towards Dpos because the development is more open.  Bitshares also seems to have a fuller support for DACs.
sr. member
Activity: 441
Merit: 250
DPOS and NXT are practically identical, the only difference is which mechanism is used to pick block producers (both are essentially by stake-vote)

In NXT you can also form forging pools and may lead to Bitcoin style problems.
The forging pools with nxt equal the delegates in dpos. This is what makes them equal.
hero member
Activity: 616
Merit: 500
I do not like their cloak and dagger behavior with the source-code and only releasing it to peer review after they "feel" the world is ready.

https://bitbucket.org/JeanLucPicard/nxt/src

Care to elaborate?

The code as released doesn't solve the nothing at stake problem.  It also can be hard forked by creating an alternate chain longer than 720 blocks.   NXT promises there is some magical code (EC and TF) which will resolve these problems but the world isn't ready for it yet.

Our main developer wants to answer you. But he does not use BTT anymore;

https://twitter.com/comefrombeyond/statuses/470997528604049408
member
Activity: 97
Merit: 10
Inch by Inch,Play by Play
I think it will be a battle between nxt @ bitshares
Nxt has the advantage that has released their "product" first, security wise in my mind the winner is bitshares but only on the playfield they will proove it.
Both coins are still undervalued and I am personaly invested more in favor of bitshares and I continue to invest there because I think they have a greater potential.
Hope the devs and founders from the 3 "coins" will share their good ideas and "work together" so all communities will win a share from the success of this innovative industry! We are all on the same neighborhood  Wink

As Stan (bitshares founder) said:
"Each of us will drive more awareness to each other than they will take away from each other.  It's the same reason competing car dealers and hardware stores tend to cluster on the same street.  Get the traffic to come to your neighborhood and then compete!"
legendary
Activity: 1050
Merit: 1000
DPOS and NXT are practically identical, the only difference is which mechanism is used to pick block producers (both are essentially by stake-vote)

In NXT you can also form forging pools and may lead to Bitcoin style problems.
legendary
Activity: 1302
Merit: 1008
Core dev leaves me neg feedback #abuse #political
20 years from now, daily reward is still 112 blocks...should be more than enough to keep fees low.
It'll be 3% of what it is now. We can hope that 1 BTC doubles in real-world value at least every 4 years to compensate, and it might for a while, but that rate of increase can't continue forever. I am thinking in longer timescales than 20 years here.

Gavin recently stated the network is "over secure"...meaning there is too many
miners...if later on, miners need to drop out because there is no more profit,
there may be fewer miners.  There will have to be a balance between security
and fees.   

It largely depends on how big Bitcoin gets.  If a billion dollars
a day is transacted, then a million dollars a day in fees is 1/10th of a percent.
donator
Activity: 1218
Merit: 1079
Gerald Davis
I do not like their cloak and dagger behavior with the source-code and only releasing it to peer review after they "feel" the world is ready.

https://bitbucket.org/JeanLucPicard/nxt/src

Care to elaborate?

The code as released doesn't solve the nothing at stake problem.  It also can be hard forked by creating an alternate chain longer than 720 blocks.   NXT promises there is some magical code (EC and TF) which will resolve these problems but the world isn't ready for it yet.
legendary
Activity: 1225
Merit: 1000
I do not like their cloak and dagger behavior with the source-code and only releasing it to peer review after they "feel" the world is ready.

https://bitbucket.org/JeanLucPicard/nxt/src

Care to elaborate?
sr. member
Activity: 365
Merit: 251
20 years from now, daily reward is still 112 blocks...should be more than enough to keep fees low.
It'll be 3% of what it is now. We can hope that 1 BTC doubles in real-world value at least every 4 years to compensate, and it might for a while, but that rate of increase can't continue forever. I am thinking in longer timescales than 20 years here.
sr. member
Activity: 1582
Merit: 253
DPOS and NXT are practically identical, the only difference is which mechanism is used to pick block producers (both are essentially by stake-vote)
donator
Activity: 1218
Merit: 1079
Gerald Davis
At the end of the day, distributing crypto-equity through fixed algorithms is fundamentally flawed because it does not consider market forces.

That is nonsense.   If the exchange rate rises the market value of the money supply also rises.  If miners receive 1% of the money supply annually it doesn't matter if a BTC is worth $1 or $100,000.  The network isn't distributing "equity" it is providing compensation for securing the network.  The subsidy is merely a bootstrapping mechanism.  In the future users will pay for security and if they pay 1% to PoW miners or 1% PoS stakeholders they are still paying for security.


You didn't refute my point at all.... If miners receive 1% (which is an underestimate, it is more along the lines of 9% at its current rate) when the price of bitcoin goes up then there compensation goes up regardless of added efficiency or security of the network. So if you have a spike from $1 to $100,000 the cost of securing the network went from 10 cents to $1,000. Except we are not longer in that price range which is why the cost of mining is now more than $500 million.


The same is true with PoS.  Yes you have proven that 1% of a large number is larger than 1% of a small number.
full member
Activity: 237
Merit: 100
Blackcoin have announced that they are about to release an improved PoS. Details are still unclear, so not sure if it will solve the issues that the Peercoin model currently has.
hero member
Activity: 770
Merit: 566
fractally
Isn't another issue is you need your wallet open to "forge/mint"...
That seems bad for security.  Not sure if that's an issue
with just NXT, or applies to Peercoin and DPOS as well.
Nxt doesn't require you have to your wallet open to forge.

Website says this

Quote
What do I need to start forging?
A client and some NXT. Once you have unlocked your wallet with your passphrase you are able to forge.
That's one way to forge, but there are others. Specifically, you can lease your forging power to a pool, then it will forge on your behalf and you don't need to keep your wallet open.

After talking with the Nxt developers it is fairly clear that Nxt and DPOS are very similar.  They both deterministically select the next block producer, operate on a fixed absolute block production schedule and support DELEGATING your stake to others.  

The difference lies in how the delegated stake is managed.  In DPOS everyone is delegating at all times and all clients observe behavior.  In DPOS it is possible to vote AGAINST a bad actor and thus nullify their own votes.   This prevents someone from buying up 10% or more of the network and then abusing their 10% in some way.  

Where Nxt has block production proportional to balance, DPOS is 1 block per delegate with a changing slate of delegates that are voted on proportional to stake.   There are limits that prevent concentration in one delegate and the wallets automatically rebalance votes from delegates that get too much.  

Lastly the difference is that all shareholders are paid from dividends without having to do anything.  The delegates take a small cut of the transaction fees.  

I think that Nxt / DPOS will be the future as Peercoin has too many issues.


legendary
Activity: 1302
Merit: 1008
Core dev leaves me neg feedback #abuse #political
Of course PoS isn't free either.  If Peercoin was worth as much as BTC (value of money supply) then its 1% inflation rate would be about $70M a year.
PoS does not intrinsically need inflation. Nxt is a PoS coin that has no inflation. There's no block reward, just fees, so the number of coins is constant.

The cost of mining from the perspective of the bitcoin network is the block reward provided to miners. None of the costs or efficiencies within the process of mining matter because the network is incapable of taking those variables into account. The cost of security increases with value of bitcoin. If the value of bitcoin increases proportionately more than given decreases in block reward then there is a net increase in the cost of securing the network.
That's true while the block reward dominates. As the block reward reduces, and transaction volume increases, transaction fees will come to dominate in Bitcoin. The cost of security will be equal to the sum of fees, and the community will get greater or lesser security by paying higher or lower fees.

This is why I care about Proof of Stake. It seems to me that either Bitcoin fees will end up very high, to pay the miners for the work they do securing the network; or else the fees will end up comparatively low, and the network will be insecure. If PoS works (a big "if", I concede), then it's inherently more efficient and will require lower fees for the same security, and that could lead users to shift over to it in the long run. (Much as lower fees is often cited as a reason for merchants to prefer Bitcoin over credit cards.)

20 years from now, daily reward is still 112 blocks...should be more than enough to keep fees low.
hero member
Activity: 770
Merit: 566
fractally

The new DPOS from Bitshares sounds very carefully thought out, and promises to be faster - its not released yet though. I hope its fairer than PPC.

To me it sounds almost ideal, and I am very excited to see it work. I hope there is no huge overlooked flaw in it.

The huge overlooked flaw is that it's not really distributed consensus.

how is it not?


Well, it could be argued that it is. 

But to me its not a good system because you have to trust the
supernode you voted for, etc.  You get into the whole trust
thing, almost like voting for politicians to represent your interests.
I would much prefer the whole thing be trustless and governed
by math and protocols like Bitcoin.

Bitcoin uses vote by hashpower and thus everyone is trusting less than 10 super nodes (mining pools).  Try to look at the true nature of what these systems are doing rather than at the marketing spin the BTC community has put on things.

With bitcoin you cannot vote a miner or pool out.  The coin holders have no say at all and only a super minority actually mine bitcoin these days.   

The system is still governed by math, it just operates as 99 small mining pools where the users can redirect their hash power at will and where all mining pools have equal say and take turns.   

legendary
Activity: 1050
Merit: 1000
Isn't another issue is you need your wallet open to "forge/mint"...
That seems bad for security.  Not sure if that's an issue
with just NXT, or applies to Peercoin and DPOS as well.

It is an issue with peercoin not dpos.

In DPoS, you vote when sending in a transaction. You don't have to keep your wallet open.

You should keep your client online, though as it monitors the network and alerts you in case any delegate is misbehaving.
sr. member
Activity: 365
Merit: 251
Agreed.  It just important to understand efficiency can't reduce cost only improve security (by eliminating the potential for an attacker to reduce cost by using more efficient tech).
Although there's no improvement in security in the long run. When someone designs an improved ASIC, the network becomes vulnerable to the danger that an attacker will deploy the new technology first. As the new ASIC is adopted by miners, we return to the status quo. The miners need to keep upgrading, just to stay in the same place both with regard to their revenues, and with regard to network security. As long as technology keeps improving, miners will need to pay for new hardware, and the community will have to pay for that hardware, as well as their electricity costs, either through block-reward inflation or through fees.
sr. member
Activity: 365
Merit: 251
Of course PoS isn't free either.  If Peercoin was worth as much as BTC (value of money supply) then its 1% inflation rate would be about $70M a year.
PoS does not intrinsically need inflation. Nxt is a PoS coin that has no inflation. There's no block reward, just fees, so the number of coins is constant.

The cost of mining from the perspective of the bitcoin network is the block reward provided to miners. None of the costs or efficiencies within the process of mining matter because the network is incapable of taking those variables into account. The cost of security increases with value of bitcoin. If the value of bitcoin increases proportionately more than given decreases in block reward then there is a net increase in the cost of securing the network.
That's true while the block reward dominates. As the block reward reduces, and transaction volume increases, transaction fees will come to dominate in Bitcoin. The cost of security will be equal to the sum of fees, and the community will get greater or lesser security by paying higher or lower fees.

This is why I care about Proof of Stake. It seems to me that either Bitcoin fees will end up very high, to pay the miners for the work they do securing the network; or else the fees will end up comparatively low, and the network will be insecure. If PoS works (a big "if", I concede), then it's inherently more efficient and will require lower fees for the same security, and that could lead users to shift over to it in the long run. (Much as lower fees is often cited as a reason for merchants to prefer Bitcoin over credit cards.)
newbie
Activity: 57
Merit: 0
Sunny knows that "good enough" and "dead simple" wins.

Thats probably one of the worst mottoes I've ever. You are right to suggest that we shouldn't over complicate things, but "good enough" never wins.

Also if Sunnys involvement in PeerShares is the clincher, you might want to reevaluate your position. In a recent chat discussion between Sunny King and Bytemaster on peercointalk it seems he was not as involved with peershares as you suggested.

Peercoin is not complete in my view and has some remaining issues, before it can be considered a viable pos-solution, most glaring one being their checkpointing requirement.

I really want to like NXT and even though it is not strictly a technical issue with their particular solution, but I do not like their cloak and dagger behavior with the source-code and only releasing it to peer review after they "feel" the world is ready.

Clout do you think adding cpos to the discussion and/or poll would be advisable or is that proposal still too theoretical?

One little addendum regarding the whitepapers by Daniel Larimer, part of the "security model" in his theories is that of many competing chains and free market choice between them, instead of the other seemingly isolated central blockchain models. While I understand the philosophical ideal of wanting security solely through algorithms, I'm not convinced that this mathematical Elysium is achievable in practice, besides it all hinges on market evaluation by humans anyway. So while not being limited to tapos/dpos I do think the free choice between chains implied in those whitepapers (ByteMaster always mentioned the competing chains when I've heard him explain his concepts) is more versatile than other models.

PS
What's up with all the references to the scores on IQ-tests and drawing conclusions from them? To me those things were more about how long can you fight the boredom and keep focus. Most of the ones I had to fill in even used multiple choice, talk about ridiculous. Multiple choice makes it just about impossible to give the wrong answer.
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