Proof-of-Stake (vs proof-of-work) 

You introduce a diminishing returns parameter that, after a certain threshold, your rewards in the stake pool diminish. Encouraging new people and even the stake pool itself to either set a new one up or find a new one thus incentivising decentralisation whilst disincentivizing centralisation. This is not a mark against PoS itself, only networks that don't have a work around.

Honestly? that's a good thing PoW gave the opportunity to the community to regulate their own currency and the only thing it caused was component hoarding, a chip shortage and irreversible damage to the environment Decentralized currencies are a nice idea but not at the expense of everyone else trying to live their lives

The biggest downside of POW is literally destroying the environment and people still want it for 'decentralize' :/

@@N1rOx That doesn't make any sense. They can just set up a new node and continue...

@@HardcoreDuce Introducing new pools helps decentralisation. Remember, you still need delegators (unless you are insanely rich, however, if the network is large enough, Bitcoin for PoW or Cardano for PoS, then the cost to perform an attack would be more than any benefit you'd gain), if the network and community see a whale gaining too much stake they can choose not to delegate to them in their current and/or next pool's. This already happens in essence over in POW systems, where let's say for example Ergo has a disclaimer on their Reddit asking users to switch to mining pools away from the number one for the sake of decentralisation. However, as far as I am aware, you don't get financially incentivised to switch like you would with the work around I mentioned for pos.

I believe Cardano is more decentralized than Bitcoin now.

But aren't 70% of miners in china?

Uh no, It's because bitcoin started back early before the arise of Dapps. New Dapps now have more explosive popularity and growth in their infancy which proves my more potential than Bitcoin. But none the less both of them are decentralized.

Bitcoin is one of the least decentralized currencies out there.

@@AwfulnewsFM I'm sorry but either you haven't done your research or you don't understand the metric for calculating what decentralisation is.

Or the more philosophical issue of a handful of rich entities controlling the entire process in practice.

Hehe, it's still random, just not completely random. Your odds are determined by your stake. But equal stake means equal chances, means random selection.

@@davidz2690 if your forced to add "not with uniform..." so it's not "completely random" as general public assumes it, with seems "fully random with uniform odds". Like in a game of dices, with strictly the same weight for each dice and for each face of each dice. A "fair" random. SimplyExplain is just better than you to explain clearly without acronyms or technical concepts ;)

He said proof of work makes the network more centralized because of mining pools. What do you think about this ?

ADA and WAVES both have over 75% of circulating supply staking and earning people money LOLS good luck buying 51% of staking supply lols

@@BeenDeliveredToday I think if every DOGE holder had a chance to find a 10k DOGE block there would be tons of individual nodes all over the world... I think it would be 100x more decentralized than mining

you cannot sneak in malicious transaction - all nodes validate forged blocks 🙄

@@gimrexymcity4833 you can if you have 51% of the stake like the comment said it’s like 51% attack on PoW you just need 51% of the Mining power but in reality 51% aren’t worth it you ruin credibility of a coin and it becomes less worth it’s more worth using all that power in validating blocks

It seems that various currencies are using various approaches. One way is to multiply the stake of a validator by the time since its last validation. For example, if: V1 has a stake of 100 for 2 days = 200 V2 has a stake of 10 for 30 days = 300 Then everybody agree that V2 has to be the next validator. After the forging, V2 has a stake of 10 for 0 days. Another more "random" way might be to multiply the stake of a validator by an hash of (validator id + last block). This way a random node is selected, but everybody choose randomly the same validator.

@@rt1517 Does hashing still mean PoW in the PoS model? What's the censorship potential by a majority?

@@harishkumargujudhur2234 No hashing does not mean PoW in PoS model. In PoW, you have to do tons of hashes on the same block again and again only modifying its nonce until the hash result matches a specific contract. It requires a lot of tries to find a valid nonce and these tries take time and energy. In case of PoS as explained above, you would only have to hash once per validator to determine the next validator. Easy task, even if there are many validators. No competition, no need for gigantic mining farms. To do a 51% attack on bitcoin you need half of the hashing computing power (that means only the 4 biggest bitcoin mining pools). To do a 51% on a PoS currency, you typically need 51% of the coins. Some people think that if you own 51% of a currency, you won't attack it because the currency will lose its value and you will lose all your investments. So PoS should be a lot less targeted by 51% attacks.

@@rt1517 Thank you very much. I'm currently leaning on PoW. So, feasibility-wise you mean PoS is less secure, but in terms of the desire to take the 51% attack potential, PoW has a higher competition. (excluding less popular PoW coins not targeted as Store of Value) Based on your explanation concerning the need for gigantic mining farms so far, it has a higher energy demand for attacks than PoS.

@@rt1517 Also, I would be really grateful if you would point out what other consensus algorithms use more than one hashing to check for a valid nonce. I'm much interested in non-identificational Proof-of-Weight. I don't know much about use of hashing other than in the form of basic OTP passwords.

ḭnvest in Ƀḭt¢oin trading with my administrative Valenzia Andrew...Add up on...T E L E G R A M...+ 1 3 2 5 7 3 2 0 1 9 1.

Less. If you were to conduct every transaction on Wall Street with a PoW system it would use a phenomenal amount of electricity. With a normal transaction, you just pay the electricity to send a simple message to the bank. With a PoW transaction, hundreds of miners around the world compete to solve a puzzle to validate just one tiny transaction, consuming enormous amounts of electricity

Everyone can have the data needed to create each block and forge the hash. So i guess the simplest way is that each elected first check the previous hash then hash the new one. Each validator is the validator of the previous. I guess the punishment is automatic.

@@philv3941 isn't it blockchain? That means everyone in the node will have the copy of transaction and if they notice some red flags they can raise them?

I had you figured for a mage

Unfortunately, crypto has yet to be successfully decentralized. Bitcoin failed to achieve the goal, even if you ignore power consumption. So if PoS is even slightly decentralized, it'll be better

They check if a transaction was correctly signed (with the matching key) and if money hasn't already been spent (double spending)

And you can't safeguard yourself against fraud I.e money laundering. Even harder with the new masternode coins with built in washing facility.

Hi Savjee, thanks for the video, I was wondering if the following was true: In order to check if the transaction is correctly signed, you check the crypted private key. In order to check if the money has been double spent, you check the public key and see if the account has enough tokens on it. Thanks in advance for your reply!

Hmm no that's not true. To verify a transaction we check if it was signed with the private key that belongs to the public key (without knowing the private key). And to prevent double spending, we check the entire history of the wallet to see if it still has enough funds to make the payment.

No, it's completely automated

Same

Thank you... This video is way off.

Proof of stake is more akin to our current Fiat system: centralized and favoring the rich

This video advertise etherium secretly. It is a total misinformation. Most of this new coin are PoS. I think elites are behind this to stop Bitcoin. I think they also manipulate the GPU prices so that they halt miners from mining while advocating for etherium which is secretly centralized.

@@diocre7446 indeed.

@@diocre7446 Ethereum is corporation issued currency.

His computer does the math in the background, I'm guessing. Since it's only a single hash (I think) it shouldn't require any processing power at all and should be complete in less than a second.

@@TwistZero wtf! that makes no sense

@@fineartpottamus9020 how so?

This is horribly wrong haha

could not agree more

I agree it makes no sense POS doesnt even deal with how to distribute the initial coins. The leader of a dictatorship could print themselves all the coins in a POS framework and use POS to run it but the dictator gets all the money and control while the users have to verify the blocks or be dilluted and thats a very common way of using POS its really not secure or decentralized. Who cares about a 51% attack if the creators spawned all the coins for themselves for free thats basically an attack at the outset.

@@bitcoinizakaya9579 exactly, and a 51% attack becomes harder and more costly when there are more people mining right?

What do you think of PoS in comparison to PoW?

Very good point.

Ikr. Also with like ethereum 2.0 when it switches to a PoS consensus mechanism, you have to stake a whopping 32 ether! Who tf has that much ether? I certainly don‘t. So for small people like me, I would HAVE to join a staking pool to even stake my ether. It‘s not alot better than joining a mining pool (with my gaming rig with one single gpu) and getting my 3-5€ worth of ether every day... Also I would get alot less ether with proof of stake.

What's that?

@@uchihai_a_h4871 A protocol i invented but i was unfortunately shutdown by larger parties.

So true. How am I supposed to stake 32 ether? I barely have 0.1 ether

Exactly. Are you familiar with Steemit? Because that seems to be precisely what happened there... If people want to see how a POS system turns out, look at Steemit. Then look at Bitcoin. Which is superior should be apparent, imo. (Don't get me wrong--I have been a member of steemit for almost 9 months now, and use it daily. But I have seen how it has, imo, *worsened* over time, as opposed to *improve*.

You need a balance of bitcoin's decentralization but the ability for pools, companies, teams to speed up velocity based on real world work.

I don't know how this problem can be solved generally, but I'll give an example. Orchid, which allows for decentralized VPN services, uses POS to select which node on the network will route a user's internet hops. Of course, a larger stake makes them more likely to be selected for a certain block. However, if the stake is so large that they are being awarded more blocks than they can possibly handle (being asked to provide more bandwidth to the network than they are able), then the extra staked amount is wasted. This gives an incentive not to stake more than what is needed. And also, it's important to note that pools DO exist very explicitly on most POS networks, as they allow you to "delegate" your staked coin to someone who has met the minimum amount to stake (these minimums are usually in the range of thousands of USD). I think a better permanent solution would be to introduce an artificial dis-economies of scale into the network, by having the chance of being selected for a block vary sub-linearly to the amount of stake on the network. For example, Validator_Chance = (Stake)^(.99) or something like this.

The only difference its its permissioned based on stake. Which is inferior to open to all equally.

The reason you cant spawn money with 0 energy and expect to get energy out is basic physics its so dangerous to say its secure when theres no mechanism whatsoever to distribute the first initial coins fairly so most POS coims are literally spawned from nothing for free to the benefot of the creator group very much not unlike airmiles

In the proof of stake. If the validator accept the fake transaction their security deposit will lost. that's the punishment. So no one will accept the fake transaction.

@@mixwood1130 unless they have large shorts in place on a futures market

@@mixwood1130 the original question was asking how the network detects a fraudulent transaction or double spend

@@bitcoinizakaya9579 Have a great day!

@@SidelongSuggestive have a nice day!

Thsats not a good thing if only people who own the coin can mine based on what they already own like who gets the first coins.. POS does not solve how to fairly distribute the initial coins only how to keep it going and thats like the main problem. If people can issue money for 0 energy how can they extract any energy without either breaking physics 2nd law or the fundamental economic arguments break down.

@@bitcoinizakaya9579 wtf do you think you can extract energy from bitcoin or something?

@@AwfulnewsFM One can sell their crypto to heat and power a house which is indeed converting money into energy

The PoW one?

Stake lost in PoS is burned and is lost forever.

@@AwfulnewsFM everipedia took me my sum after an accurate depiction of one page and a non-accurate one for another. I provided images which were removed too. That was censorious, to begin with. The question: Have the amounts I initially had burned, or are they temporary? Also, the cash showed as zero after a great initial boost by a tipping node. As an aside, everipedia's efforts are laudable, but it's pretty flawed, even beginning from the four-pin code for the account, last I entered.

@Eihoofd2 I don't think replying to a 2 year old comment will get you very far. And if you'd actually watched the video you'd see that a very concise explanation of Bitcoin was given. Most likely what he was referring to.

It very poorly explains Bitcoin, nobody that uses Bitcoin wants proof of stake.

No. You have to STAKE the crypto within the blockchain. Honestly tho, proof of stake might be incredibly decentralized as first but if the whales were to stake all their coins they would literally control everything

My thoughts exactly.

Is that not websites like Nexo?

@@MrBraveheart92 what do you mean???

what if?

@@Dhanush-zj7mf a staking pool. Is Nexo and pancake swap not a pool?

That is actually not true. The difference between a pyramid scheme and proof of stake, is that in a pyramid scheme you get paid if more people buy into the scheme. In contrast, proof of stake rewards stake pools for their work (validating transactions). If they do a bad job or try to do something malisious their stake gets cut. So they are incentiviced to do a good job. The whole thing takes another form, when delegators are brought into the table. I actually made a video about this if you are interested :)

And IOUs are not? Pick your poison

Yes well, then it's their coin basically and they can do as they see fit. Shareholders in a company that jointly have 51% can also make decisions over wether or not to do a stupid acquisition or to print more shares and doing an offering. It's very unlikely they will decide to do something obviously bad for the company because... they own a 51% stake in it!

secretly coordinate their stakes or else 49% loses faith and sell out and price drops and transaction fees go down unless coin is goverment issued/market accepted and is required for your daily survival/transactions and even if 51% coordinates to defraud you, you don't have alternatives .

The velocity of the coin will drop if a small group can only validate mine it.

fatjohn1408 unless it's a foreign government attack, it would just be written off as an expense of war. Governments spend billions on war, they could also spend billions taking down a country's currency network.

@@fatjohn1408 Right? They act like a 51% attack will be done by some sort of comic book villain. As if there was no incentive to validate & mint w/ 51% of all stake to obtain 51% of all rewards. Lol

Sorry about that! The original video has a mistake which I wanted to fix ;)

A big problem is that, in PoW blockchains like Bitcoin, a lot of miners pool together which is potentially dangerous as in the future, if enough miners pooled together, they could do what is called a 51% attack since they have the majority of hashing power in the network (think of it as a vote). Also, miners themselves don't make it impossible to change a previous block. Blockchains are intrinsically immutable. I hope this helps.

@@turbo6266 it's immuable because of the mining. If someone want to modifie a block, he have to calculate every hash or every block after the modified one, and the faster than all the other miners together, in order to submit a conforme modified blockchain. (Here is why there is this 51%). In other words, that's the mining who made the blockchain immuable. But I don't see that in PoS. I don't get how they make it immuable in pos

@@Merwip Well i guess it is technically is immutable because of mining, but that is because the transaction enters as an input, after which hashing occurs, resulting in an encrypted output as a checksum. iMMUTABILITY is the intrinsic nature that makes a blockchain what it is - safe. However, you said you could calculate every block back, which is impossible because the hash is so sensitive that if you change it just a bit, the encrypted outcome is totally different. It's almost impossible to calculate blocks back. Proof of stake is also immutable because the validators are selected randomly, and thus the node forges the input. Think of forging as a different term for mining, but for proof of stake instead of PoW. To conclude, proof of work makes nodes compete, proof of stake selects validators to solve, and try not to think about mining as the reason why bloickchains are immutable. They are immutable because the encryptive algorithm just makes it pretty hard to solve the encryptions. If some stuff, doesn't make sense, soz, i've only been looking at blockchain for like a week :P

exactly

you know guys crypto isn't only about the mining ..

it is, he just used the current price just try buying 51% of anything in a market you will just implode the price and make it unfeasible. The 51% attack is in regards to that much much easier

And what is going to stop people from pooling their bitcoin into a single account to recreate the same problems as mining pools? NOTHING There are no answers.

And proof of work doesn’t? You need money to mine Bitcoin so it’s same shit, why? Because money is tool and leverage and rich people will always get richer and get your Pussy ass to work if you don’t like it or go broke and cry in the corner how bad is this world because you do nothing and get nothing. Work smarter not harder

Riccardo Mazzia YES!!!

Well, ETF may easy rise 80 bn for others objectives, but it's not so easy for them to rise all this money to this specifically objective... Also, the price of the coin would oscillate a lot during the buy process...