Topic: [ANN] (QTUM) - A Scalable Smart Contract Platform w/ Proof of Stake - page 32. (Read 525472 times)

Hopefully think so that it will go to a good price as soon as possible for the listing of binance. We have to wait more to see the success of the projects nothing else.

In other news, QtumX hits 10,000 tps, although that's by using Proof of Authority, not Proof of Stake:

https://dailyhodl.com/2019/01/23/crypto-game-changer-qtum-blockchain-system-breaks-10000-transactions-per-second/

The chart says it's been fixed on Qtum. Only the first vulnerability was exploitable. But, as someone said, it's a bit worrying that Qtum kept quiet about this - but, then again, maybe it's best to keep quiet about something like this until everyone has it sorted.

"All these mitigations make the attack difficult to carry out but are still no substitute for full validation. Some cryptocurrencies, such as Qtum, plan to move to full validation of off-main-chain-blocks in future releases."

“Fake Stake” attacks on chain-based Proof-of-Stake cryptocurrencies

https://medium.com/@dsl_uiuc/fake-stake-attacks-on-chain-based-proof-of-stake-cryptocurrencies-b8b05723f806


This article is the public disclosure of a series of resource exhaustion vulnerabilities investigated by a team of students consisting of Sanket Kanjalkar (sanket1729, [email protected]), Yunqi Li, Yuguang Chen, Joseph Kuo, and our adviser Andrew Miller(socrates1024) in the Decentralized Systems Lab @ UIUC. These vulnerabilities have affected 26+ Proof-of-Stake cryptocurrencies in total and would allow a network attacker with a very small amount of stake to crash any of the network nodes running the corresponding software. We began a coordinated disclosure in October 2018 to notify development teams of affected cryptocurrencies ahead of this public release. The majority of them (weighted by marketcap) have already deployed mitigations.........


Vulnerability #1: “I Can’t Believe it’s not Stake”

When we first investigated this problem, we found that five cryptocurrencies, Qtum, Particl, Navcoin, HTMLcoin, and Emercoin, exhibited a fairly trivial form of this vulnerability: namely, they fail to check any coinstake transaction at all before committing a block to RAM or disk. What these five cryptocurrencies have in common is that they have adopted Bitcoin’s “headers first” feature, in which block propagation was split into two separate messages, Block and Header. Nodes only ask for Block after Header passes the PoW checks AND it is a longest (or longer) chain. Since the coinstake transaction is present only in Block but not the Header, a node cannot validate the Header on its own. Instead, it directly stores the header to an in-memory data structure (mapBlockIndex). As a result, any network attacker, even with no stake whatsoever, can fill up a victim node’s RAM..........

Qtum does slightly more transactions per second right now - approx. 60-70 tps vs 7-15 tps for ETH - but Vitalik is bragging that Ethereum will eventually do millions of tps:

https://www.ccn.com/vitalik-buterin-ethereum-will-eventually-achieve-1-million-transactions-per-second/

Qtum is aiming for 50,000 in the short-term, but I haven't read anything about long-term possibilities:

https://bitcoinexchangeguide.com/qtum-aims-for-50000-transactions-per-second-and-launches-0-16-update-during-first-anniversary/

If we could burp both babies, the sky's the limit!

it's more scalable than ETH, while EOS is not really a Blockchain since they only have 21 nodes.....

How is this exactly relevant for Qtum being on Korbit? Do you think that all the assets on Korbit will go up in value just because Tencent would become the owner of the exchange?

https://www.ccn.com/how-400-billion-tencent-might-soon-acquire-two-major-bitcoin-exchanges/


Qtum on Korbit

Right now, EOS is the most scalable because it has just 21 nodes, but is highly centralized. Qtum is like Ethereum and has problems scaling, but that may be resolved in the future (though Ethereum has the edge because of all the developers working on it). One benefit Qtum may have is its upcoming x86 VM, allowing smart contracts to be programmed in numerous existing programming languages, but Ethereum is also working on that.

https://bitcoinmagazine.com/articles/qtum-forges-ahead-development-its-x86-virtual-machine-and-expanded-network/

Another advantage was meant to be its Simplified Payment Verification (SPV) protocol - used by Bitcoin - that makes it easy to run dapps on smartphones (because you don't have to download the entire blockchain to verify transactions), but, apparently, that's not the advantage it once was.

https://blog.icoalert.com/the-ethereum-challengers-ep-6-qtum-qtum

No one can predict the future. If several blockchains can co-exist and thrive, then one doesn't have to be massively superior to the others.

Good article - best to print it out for reading:
https://www.circle.com/marketing/pdfs/research/circle-research-qtum.pdf

That is most wonderful definition of this platform first you said ETH is not decentralized and than you are saying QTUM is like ETH. This make me laugh so high and even other people will also enjoy this when they will read this.

QTUM is decentralized but eth or eos is not decentralized. and maxium coin for qtum is 100m but etherium is no minimum and eos is 1000,000.  also qtum has The Benefits of Bitcoin and Ethereum. qutum is like etherium and bitcoin .
team is very active

is qtum more scalable then EOS or ETH?   or what benefits QTUM network have?

Those chat rooms are quite funny.

Dear QTUM community. We, a team of enthusiasts, are pleased to inform you about our project http://qchats.club/ which logs all the important telegram chats related to QTUM. We believe that QTUM Chats will be a valuable addition to the QTUM ecosystem. During the work of the site, we have already received a large number of positive feedback from community members. The project is under active development. The project has its own team of programmers, ready at any time to solve new technical problems and make new improvements.

What is implemented at the moment:
You can read your favorite chats in the form convenient for you through http://qchats.club/
The site is optimized for work also on mobile devices. There is a search by keyword and date. It is possible to read the chat you want in your native language using Google Translate. The translation is not perfect, but it will allow you to receive the latest news as quickly as possible from the first sources. For example, you can use our site to read Chinese, Russian, Korean and other versions of QTUM telegram chat.

In the near future, we plan to add the ability to share a specific telegram post in social networks. On the one hand, it will allow you to share interesting content with your friends and subscribers, and on the other hand, it will positively influence the development of QTUM’s popularity in general.

There is a lot of work ahead, we have planned a huge number of interesting and useful improvements. If you have any suggestions for improving our site, please write - we will try to take everything into account and use it in the further development of the site.

If you think that some important chat related to QTUM is missing on our site, please write and we will add it.

Although I left QTUM months back due to lack of Dapp adoption, I heard today there was news on an atomic swap with BTC. Can anyone detail what this means for QTUM? I read elsewhere that some other projects had abandoned atomic swaps, such as Altcoin.io, in favor of plasma, state channels, or other tech due to downsides. Are atomic swaps still relevant tech?

This coin has a great future

This is good news for the future of this platform they are working with positive mind and developing interesting features for this network. QTUM have professional people in their dev team so in future we will get more positive news.

The Qtum blockchain platform is introducing Bitcoin's atomic swaps on its mainnet infrastructure, according to a press release shared with Cointelegraph on January 9th.

The implementation of Qtum-to-BTC atomic swaps was realized with the use of Hash Time-Locked Contracts (HTLCs) technology, considered by the Qtum team the safest way to implement swaps, and is based on the code of open cryptocurrency source Decred.

All the details on https://cointelegraph.com/news/decentralized-platform-qtum-introduces-bitcoin-atomic-swaps-to-its-mainnet

I have the same wish as yours for the QTUM project in the year.
When market turned better, it is good time to come back to work.
Just kidding a little bit because I known that QTUM team have continuously worked hard last year.

Hopefully there will be lots of DAPPS on QTUM this year, otherwise all this great work on developing a killer platform will be for nothing. Getting a gold label from binance is big news so hopefully it will attract more investors and developers