Bitcoin Forum
May 28, 2024, 09:33:57 AM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
  Home Help Search Login Register More  
  Show Posts
Pages: [1] 2 3 4 »
1  Alternate cryptocurrencies / Altcoin Discussion / Re: PoW and PoS on: April 24, 2024, 05:41:52 AM
PoW vs. PoS should be an important topic, when reviewing a coin.

Pro and Contra Pos vs. PoW

Quite contrary to PoS, PoW is very hard or almost impossible to compromise. Not so for PoS, where more attack vectors can be found.

For example, PoS can be abused by rich stakers. Many PoS projects have a so-called pre-mining of coins allocated to the team and the team can abuse such pre-mined coins to gain influence about project decisions.
A large pre-mine is making a project centralized in many ways and devs can gain much influence by staking a large amount of PoS coins.
PoW is not having such issues.

A similar problem is called "nothing at stake", where attackers benefit from no cost to stake ETH or similar PoS coins. Should a fork occur, no matter if the fork is a friendly, accidental or a malicious attempt to rewrite history and reverse transactions, it’s a given strategy for any staker to stake on every chain. By doing so, he will get a reward no matter which fork will succeed and he will have no additional cost to do so.
In PoW, such a problem is not happening because PoW always means work (spending electricity) needs to be done. A cost occurs for every miner and he can’t mine on multiple chains because mining of a different chain means an extra cost.

Do you have more reason against / pro PoW / PoS?

PoW consensus algorithm is a backbone of a decentralised blockchain network. It's robust and unstoppable.

PoS reward distribution mechanism is a backbone of an unregistered security market. It's often used to conceal a central authority and distribute profits to shareholders in a public company.
2  Alternate cryptocurrencies / Altcoin Discussion / Re: What do you think will be the next hype in crypto? on: December 26, 2023, 12:02:13 PM
I wish next hype to be around decentralisation.
3  Alternate cryptocurrencies / Altcoin Discussion / Re: ETH's Endgame on: September 12, 2023, 01:09:14 AM
Ever since ETH adopted PoS, things have been going into the wrong direction. The network is as centralized as ever with a few big players controlling a large portion of ETH's supply. On top of that, the vast majority of nodes are running on top of Amazon Web Services (AWS). If developers don't do anything about this, ETH will become as bad as XRP in the future. My biggest concern is not only this, but also Ethereum creator Vitalik Buterin. The project is too tied around him. So if he dies (God forbid) or something bad happens to him, you expect ETH's market prices to go all the way down the drain in an instant. It's likely ETH will become worthless after this.

What do you think? Is the endgame for ETH approaching? Will it be possible for ETH to become decentralized again? Or is it already too late? Your input will be greatly appreciated. Thank you. Smiley

I think "the problem with AWS" is infinitesimally small compared to other centralization issues of ETH. If the network is truly decentralized, it should tolerate events when 50% of nodes go offline. Why do we even discuss this "problem"? Maybe we see a symptom of bigger problems with ETH.
4  Alternate cryptocurrencies / Altcoin Discussion / Re: describe your ideal altcoin on: September 11, 2023, 09:55:44 PM
Well then since you said we should stay away from mentioning project names or coin,  this is good any ways so that some people wanting to promote they shitcoin,  won't flood the thread with of topics replies,  but then how do you intend to control the conversation here of the comment is on the topic but violates your set rules?

Since the thread is not self-moderated I bet you're going to give moderators a lot of work reporting posts most especially those that are high-quality posts.

I believe people will respect those rules. Those, who are tired of dull shitcoin advertising, will appreciate that.
5  Alternate cryptocurrencies / Altcoin Discussion / describe your ideal altcoin on: September 11, 2023, 02:29:02 AM
I propose you to describe your ideal altcoin. Please, focus on the product and technology. Follow these rules:

1) Don't mention cryptocurrencies, project names, brands, etc.

2) Don't mention potential revenue, high returns, limited supply, deflationary economics, staking revenues, benefits to early adopters, airdrops or any other form of benefits associated with tokenomics.

3) Don't mention people behind the project and their qualities.

4) Don't mention wide adoption, exposure in media, good perception of the product, faithful community, listings on exchanges, and etc.

5) Wishful thinking is not prohibited but try to be realistic.
6  Bitcoin / Development & Technical Discussion / Re: Increasing speed of transaction with the Data Sharding Architecture? on: August 25, 2023, 05:27:58 AM
Please do read up more on how sharding could be applicable. Good resources to look into would be articles by Vitalik Buterin, danksharding, and those stuff. These are complex topics and I wouldn't be able to give you as thorough of an explanation. Feel free to cite and raise any issues afterwards.

Could you, please, define what is "blockchain sharding" based on those good resources? Could you answer the question of the topic starter:

If Data Sharding is already on the blockchain then how do we know that it is already implemented? Is there any example of such implementation to relieve the Blockchain Burden?

7  Bitcoin / Development & Technical Discussion / Re: Increasing speed of transaction with the Data Sharding Architecture? on: August 25, 2023, 04:59:21 AM
If Data Sharding is already on the blockchain then how do we know that it is already implemented? Is there any example of such implementation to relieve the Blockchain Burden?

What you call "data sharding" has been already implemented in Bitcoin from the day one. In Bitcoin, transactions within one block often could be processed in parallel by a node.

Yes but there's a limit to how effective the concurrency is because of Amdahl's Law.

It basically says "The performance speedup in a program is limited by the amount of time that the parallelize-able part uses".

So in this case the methods that verify the transactions inside the block can work in parallel, but there is a host of other things inside that process that can't be sped up:

- Time spent obtaining the block from a peer (even if multiple peers are queried at the same time, the code running the block retrieval runs at least once)
- Writing the block and chainstate to LevelDB
- For each UTXO in the block, rewinding the transaction history to check that it's indeed not spent
- All of the checks involved in CheckBlock and CheckBlockHeader functions must ultimately be performed in one way or another, so there will always be a minimum resource consumption associated with it.

Sharding is not going to make any of this go faster, assuming that theoretically the system had enough threads to verify a single transaction in a block per thread, if all this stuff is already running in parallel.

Yes. Notice, your argument highlights the fact that blockchain network != database
All these points are relevant to blockchain networks. Databases don't necessarily have those steps and bottlenecks. Although blockchain network has a database under the hood, it's not everything. Some people oversimplify a blockchain network to a database which could be optimised by sharding. This viewpoint is inaccurate.

If some step of the process gets optimised, it doesn't mean the whole process gets optimised, especially, if optimisation of the one part goes ar the cost of other components. 
8  Bitcoin / Development & Technical Discussion / Re: Increasing speed of transaction with the Data Sharding Architecture? on: August 24, 2023, 03:32:01 AM
I was reading through a very interesting topic on Database Sharding that seems to be designed for handling huge datasets and distributing them to various channels so that single system doesn't have to overload itself.

What I understand from the concept is either you can distribute the data to various nodes in horizontal manner that is increasing the capacity of processing with more number of devices and also it has virtually no limit on how far you go.  Or one can simply start sharding vertically but in that you have to make the machine more powerful.

Such papers often confuse people. Before diving into this topic, you should understand that the database is not a blockchain network. "Database sharding" has nothing to do with "blockchain sharding". Think about this and don't get confused by plausible reasoning of prominent blockchain gurus.

Will it help in blockchain scaling?
I think the concept is pretty straight. If we are already using...

No, it doesn't work that way.

So if we do apply the horizontal sharding to the blockchain generated nodes then each node can further be divided into more data sets / nodes and thus processing could be accelerated based on more "machines" will be working on same problem.

No, it doesn't work that way. Let's put aside decentralized blockchain networks and consider original "database sharding". Database sharding is not always an improvement. It's a trade-off that is helpful only in certain cases in certain circumstances. When you split data into "shards", split processes into threads and distribute everything between separate hardware devices you might get some benefit from parallelism. However, you often get an overhead created by managing concurrent threads and associated delays. Sometimes this overhead is so huge that gains from parallelisation can't outperform it.

Therefore, database sharding is often a trade-off. It might be acceptable and it might be unacceptable. Database sharding is not a magic stick which solves all problems of databases. Neither it's not a magic stick in the context of decentralised blockchain networks. On top of that, as I said, the concept "database sharding in blockchain context" is not clear and straightforward.

If Data Sharding is already on the blockchain then how do we know that it is already implemented? Is there any example of such implementation to relieve the Blockchain Burden?

What you call "data sharding" has been already implemented in Bitcoin from the day one. In Bitcoin, transactions within one block often could be processed in parallel by a node.
9  Alternate cryptocurrencies / Altcoin Discussion / Re: ASIC or Anti-ASIC? on: August 21, 2023, 10:57:35 AM
For POW coins, some people think that only anti-ASIC can be mined fairly, in order to prevent the concentration of hash rate and ensure decentralization. But other people hold the opposite view. They believe that it is ASIC that strengthens the security of coins. For CPU mining algorithms, large data centers or cloud computing vendors can easily launch 51% attacks.

Do you think anti-ASIC is necessary?

1) Full ASIC-resistance is a myth.

2) The belief that ASIC-resistance might improve decentralisation is another myth.

3) Alternative utility for mining equipment reduces the cost of the 51% attack. So it simplifies 51% attacks.

Is ASIC-resistance necessary? It depends on what is your goal.
10  Alternate cryptocurrencies / Altcoin Discussion / Re: Exploring an Emerging Omnichain Interoperability Protocol - LayerZero on: August 13, 2023, 03:15:12 PM
Let me try.

1) Is LayerZero compatible with decentralized blockchain networks such as Bitcoin? What are prerequisites for compatibility of LayerZero with existing or future blockchain networks?

2) > LayerZero is a communication protocol

Who is supposed to use this protocol? Could you list all groups of participants based on their role? What data they should poses in order to be able to play their role in the network?

3) > Its core function is to ensure "valid delivery." This means the receiving chain correctly matches and verifies transactions from the sender chain, eliminating the need for middlemen.

What it means to "verify the transaction"? What verification steps can LayerZero support and what steps it can't support?

4) > The protocol implements generic messaging that provides trustless valid delivery of arbitrary data.

What means "trustless valid delivery of arbitrary data"?
11  Alternate cryptocurrencies / Altcoin Discussion / Re: Stablecoin for bitcoin on: July 02, 2023, 11:54:35 AM
I think the stability of any coin is relative. In order to be stable, a coin should be widely adopted. Its adoption should be comparable to fiat currencies like USD. Only in this case it could become stable from everyone perspective. In this scenario, it could be used as an etalon for the assessment of other coin stability.
12  Alternate cryptocurrencies / Altcoin Discussion / Re: Avalanche is NOT listed as a security (SEC) on: June 26, 2023, 07:11:33 AM
I don't think SEC is measuring decentralisation by counting full nodes.
Also, technology is important like if a coin is scalable and scalability is making it decentralized.

You pretend to know much more than we do. Could you tell us
1) what algorithm does SEC use to perform the analysis of the technology?
2) how does the result of this analysis influence the decision of SEC to declare a coin security now or any time later?
3) what is a legal definition of decentralisation used by SEC?
4) what is a legal definition of scalability used by SEC?
5) is it possible that SEC conceal information about its procedures from the public?
13  Alternate cryptocurrencies / Altcoin Discussion / Re: Avalanche is NOT listed as a security (SEC) on: June 18, 2023, 04:43:25 PM
No doesn't mean it won't. The SEC just hasn't seen avalanche yet. I reckon it'll be labeled as security by the SEC. You make me think of Solana and what it used to be. They've always shouted that there is and sol is not a security, but now the SEC is making it clear if there is and sol is a security. I'm sure that Avalanche is a security and not decentralized..

Solana has a lot more validators than avalanche. It means that sol itself is more decentralized than avalanche. How does Avalanche's lower number of validators make it more decentralized than Solana?? It only has around 1200 validators. What you're talking about seems to be just bullshit.

Avalanche is pretty much the same like solana or ADA that already mentioned in the list of securities tokens by SEC.

I don't think SEC is measuring decentralisation by counting full nodes. There is no doubt, full node count is important for the decentralisation. However, it's not a proof of decentralisation and there is no transparent way to count full nodes and prove their independence. Majority full node could be controlled by one entity. Full node owners might collude and so on. It very easy to forge full node count if you can afford the support of the expensive infrastructure.

I doubt anyone can suggest a transparent legal procedure to assess altcoin decentralisation by counting full nodes unless SEC will obligate full node owners to register themselves and comply with all current and future regulations.
14  Alternate cryptocurrencies / Altcoin Discussion / Re: Avalanche is NOT listed as a security (SEC) on: June 18, 2023, 02:30:03 PM
Well, there are thousands of altcoins and hundreds of new altcoins created every year. Many of them are listed on CEXs. Obviously, many of them are insufficiently decentralized and could be considered as securities by SEC due to whatever reason. However, SEC has not listed them in the lawsuit.

Does that mean that SEC will not consider them as securities in its future lawsuits?

I don't see much difference between Ethereum and "affected altcoins". I don't think that SEC see this difference either. Could you suggest a theory why SEC shouldn't treat Ethereum and Avalanche as securities? If you believe that SEC finds them "sufficiently decentralized", then, please, share with us the definition of decentralisation used by SEC.
15  Bitcoin / Development & Technical Discussion / Re: Which consensus is more promising, in your opinion? on: May 24, 2023, 03:04:06 PM
You can see for yourself that most of the little-known types of consensus are used only by one project and do not scale.

A scheme in which a central authority distributes rewards to participants "based on their X" is not a consensus. I think a usage of the word "consensus" in such cases is a mistake.
16  Bitcoin / Development & Technical Discussion / Re: Which consensus is more promising, in your opinion? on: May 21, 2023, 02:14:21 AM
They are all used by various platforms meaning they all have their uses and their limitations it all depends on your preference...

The only true use-case of the true consensus is building a trustless decentralized network where there is no central authority.

The only purpose of "proof of X" pseudo-consensuses is to conceal centralisation.

Private businesses might prefer a "centralised consensus" only if they can tolerate the risk related to centralisation and can't afford paying a premium for the decentralisation. Also a private business might be this central authority in this "centralised consensus". Central authority often has an opportunity to build a monopoly and squeeze more revenue out of the market.
17  Bitcoin / Development & Technical Discussion / Re: Which consensus is more promising, in your opinion? on: May 20, 2023, 11:38:39 PM
Nowadays we have so many different consensus types, like:

- PROOF OF WORK
- PROOF OF STAKE
- DELEGATED PROOF OF STAKE
- PROOF OF CAPACITY
- PROOF OF ELAPSED TIME
- PROOF OF IDENTITY
- PROOF OF AUTHORITY
- PROOF OF ACTIVITY
- BYZANTINE AGREEMENT

And there are probably others who are not even here but are running right now. In your opinion, what is the best?

Or the right question should be, "Are they designed for the specific purpose for which they are committed to delivery, or are they only a way to try to look different with some backup reason behind it?

All of them offer benefits and some lack them, but in your opinion, which one is more promising, and why?

Before writing a long list of "many different consensus types", you should answer the question "what is consensus?"
18  Bitcoin / Development & Technical Discussion / Re: A question about miners choosing fork. on: May 17, 2023, 04:39:13 PM
1) According Bitcoin Proof-of-Work consensus, Miners follow the valid chain with the most accumulated Proof-of-Work

2) Traditionally this chain is called "the longest chain". However, this name is confusing.

3) Often the heaviest valid chain coincide with the longest valid chain in Bitcoin. However, in general case it might not be true.

4) There are theorems which claim that under certain conditions heaviest chain coincide with the longest chain.

5) In this context, other rules of Bitcoin protocol has an important role too. For example, Bitcoin client doesn't append into the blockchain blocks which have timestamps more than 2 hours into the future.

If this rule is discarded, then a solo miner can mine a longest chain by systematically putting timestamps far into the future. In this scenario, the block difficulty will decrease and this solo miner will be able to mine blocks with a little effort. However, his personal longest chain won't have the most accumulated Proof-of-Work, unless he has more computational power than the rest of the network.

If this solo miner poses more computational power than the rest of the network, he may generate the longest and the heaviest chain in the network. However, his chain might be truncated by peers, who will discard those blocks whose timestamps are far in the future. After this truncation his chain might be not as long and difficult as it was before. In this edge case scenario miners might follow the chain which is neither the longest, nor the heaviest.   
19  Alternate cryptocurrencies / Altcoin Discussion / Re: Is Doge worth investing? on: May 14, 2023, 06:12:18 PM
Apparently, Dogecoin is the biggest decentralised altcoin by market cap. It's a first alternative to Bitcoin. If you hate bullshit and do understand the true purpose of crypto, Dogecoin might be a good option.
20  Alternate cryptocurrencies / Altcoin Discussion / Re: SEC calls Algorand a security - thoughts? on: April 19, 2023, 06:12:27 AM
I Will not panic with the news that came out yesterday with the SEC calling Algorand a security but I will stop buying for a few days or so to see how the market reacts.

Just wondering what everyone's thoughts are on this claim from the SEC?

I think it's a job of SEC to go after Algorand. I have no doubt Algorand deserves a status of the security.
Pages: [1] 2 3 4 »
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!