Topic: [ANN] (QTUM) - A Scalable Smart Contract Platform w/ Proof of Stake - page 126. (Read 525459 times)

report the spammer to the moderator.

someone is spamming...

please, stop spam news via pm

Why some accounts give me a message about Qtum
But I myself did not participate in ICO qtum??

Daily Test Network Update #3:

Leading up to our June 28th Test Network release, we will be providing daily updates that explain the work that goes on behind the scenes. Yesterday we went over the 5 more points, and today we focus a lot on the Proof-of-Stake portion of the Test Network.





11, Change all output strings Bitcoin -> Qtum, BTC -> QTUM




Replace all instances of bitcoin and BTC with qtum and QTUM (Just the output strings, not the actual class/variable names and not the code comments)




12, Increase Script limits to suitable values


There are a number of limits in vanilla Bitcoin that restrict our usage of smart contracts. These limits should be relaxed:

maximum data push size: 1Mb

maximum stack size: 1Mb

Test for other limits that we run into with large scripts caused by contracts.




13, Consensus/Chain parameters for PoS


Consensus/chain parameters for PoS

The consensus provide parameters that will affect the creation of new blocks in the network.

The PoS limit need to be added in order to determine the initial difficulty for PoS.

The halving interval is 4 years (target) and there will be 7 halving intervals.

Block target is set to 128 seconds.

4 tokens per Block (Approximately 1% inflation per year for 4 years)
2 tokens (Slightly more than .5% inflation per year for 4 years based on 100 million original tokens .5% of 104~ million after 4 years)
1 token
.5 tokens
.25 tokens
.125 tokens
.0625 tokens

The last PoW block need to be defined and set to 5000 for the main net. The reward for PoW block is 20000 coins, the reward for PoS block is 4 coins. The Proof-of-Work blocks will be mined by the Qtum development team.




14 , Update of block/block-header parameters for PoS


The general rule for the header is to keep it as small as possible.

Four parameters are needed for PoS in order to work:

1) Block signature, that is the signature of the whole block, signed by the block creator

2) Block type (Proof Of Work or Proof Of Stake)

3) Previous stake location, need in order to confirm the block validity, mandatory for PoS

4) Staking time, the time when the staking transaction was created, mandatory for PoS


Block signature must be a parameter. The parameter need to be in the header due to the segregated witness which split the block delivery into header and transactions that can be required from any user.
The other parameters can be extracted from the PoS transaction. Whether or not to include those 3 parameters in the header too can be discussed. The block header is downloaded before the whole block, not including those parameters in the header will prevent doing PoS checks to the header before downloading the whole block. Blackcoin download the whole block before the checks and put those parameters into the Block.


15 ,Proof of Work/Stake Kernel Update



The source code for PoW and PoS kernel is kept into the files:

pos.h
pos.cpp
pow.h
pow.cpp

The location of the files is according to master-pos, in Blackcoin the location is kernel.h and kernel.cpp.

We need to decide if we will keep it or use different structure for organization of the code for PoW and PoS kernel.
The version of the stake modifier that will be used is the second version.
Block difficulty, masks, modifiers, time-stamps are all used here, so this is important parts for PoS.

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Please see the Roadmap below for more information:

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Please remember that we have an event in Shanghai on the 28th so please RSVP if you plan on attending:

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Qtum will also be sponsoring a Hackathon in Russia, with 8500 QTUM tokens. For more information, please see:

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Qtum is hiring! If you have experience in Blockchain technology, and can handle working in a changing industry, get in touch with us.

BTCspace sure the hell seems to be on top of the latest news pertaining to Qtum, that and continues to play a role in burying my posts. Let's see why, mmmkay?

First, a post I penned a while back:

BTCspace sure the hell seems to be on top of the latest news pertaining to Qtum, that and continues to play a role in burying my posts. Let's see why, mmmkay?

First, a post I penned a while back:


What are the fuckin odds of BTCspace being directly connected to Tilecoin?

Well, one of BTCspace's early tread was ...

https://bitcointalksearch.org/topic/m.9310408


That thread was created on October 23, 2014, 08:31:30 PM and originally titled "IBM’s Adapt project|BlockNET project|Tilecoin| NEXT BIG COIN???"

Suffice to say that BTCspace was versed at that point about Tilecoin.

But on January 03, 2015, 09:39:58 PM in a thread entitled "[ANN] [XTC] TileCoin| IoT (Internet of Things) bitcoin blockchain - ĐApp", BTCspace penned the following:

https://bitcointalksearch.org/topic/m.10030562


Yep, you read correctly: BTCspace just stumbled upon Tilecoin for the very first, wishing that he would've found it earlier, but not to be deterred, he purchased some precious XTC.

The only problem is BTCspace already knew about Tilecoin ~10 weeks earlier as demonstrated with my proof above.

Further ...



So, on January 3, 2015, BTCspace stumbles upon Tilecoin for the very SECOND time, jacking off all over himself about Tilecoin (see his post history), then on January 4, 2015, BTCspace positions himself to be the thread's policeman. My guess is that BTCspace has been active in the Tilecoin thread since the get-go under a different nym.

One more thing - look at BTCspace's first posts which he has since deleted: https://web.archive.org/web/20140617191607/https://bitcointalk.org/index.php?action=profile;u=336915;sa=showPosts

Not too bad research from an old man living in a van with four flat tires down by the Colorado River, eh?

Qtum Unveils World’s First Proof-of-Stake Smart Contracts Platform

The Qtum Foundation is pleased to announce the launch of Sparknet, the first public test of its innovative blockchain platform, which combines crucial advantages of Bitcoin, Ethereum’s Virtual Machine and proof-of-stake consensus.

The Qtum (pronounced Quantum) blockchain model was inspired by the rivalry between proponent developers of the world’s most active blockchain communities, said Qtum co-founder Patrick Dai.

“We want to illustrate efficient scalability and compatibility between blockchain technologies,” said Dai. Qtum raised $15.6 million in a crowdsale in March.

The Qtum blockchain operates according to the Unspent Transaction Output (UTXO) model, which ensures consistency in transactions and the traceability of tokens. At the same time, a virtual machine for smart contracts is layered on top of Qtum’s blockchain, which presents to developers a best-of-both-worlds architecture for the construction of decentralized mobile applications and other blockchain-based ventures.

Co-founder Jordan Earls, who leads Qtum’s team of almost two-dozen developers, said the testnet would feature an Ethereum Virtual Machine smart contract implementation along with Qtum’s proof-of-stake protocol.

“I’m ready to get this in the hands of the community and see what everyone’s response to it will be, in particular, what features other developers can come up with,” said Earls.

“The Qtum team continues to execute and build what can be one of the most exciting and innovative railroads in the blockchain ecosystem,” said Matthew Roszak, Qtum Angel investor and co-founder of Bloq.

Six decentralized applications are already being built for the blockchain, Dai said. Among the applications are a peer-to-peer mobile streaming platform and a prediction market.

While these applications are geared to the Chinese market, the Qtum blockchain will appeal to a global audience, accessible to all developers.

“Like many others around the world, I’m eagerly awaiting the launch,” said Roger Ver, a Qtum Angel investor who has been investing in bitcoin startups since the beginning.

To get developers familiar with Qtum, the Foundation is sponsoring a hackathon in Moscow on July 1-2. For more information, visit blockchainhack.ru.

Visit Qtum’s Github page to view the project’s code repository, which will be accessible to the public on the day of the testnet launch.

https://blockchain.info/tx/d0105d8d891a5057c905c81b23d4f513856190a6dc6e875104e19ee1da0b3a39

_VVV

https://blockchain.info/address/1NDn3TvJVzpB9fJKDz2ptoc4EiAAUcoMU1



Ref.: Nostalgia's post has since been deleted:

This project is getting promote by some spammers I think all active members getting same message on daily basis maybe this is new kind of promotion to keep updated all the forum members what is going on but generally this is just headache.

I don't know what qtum is but i'm reciving alot of spam via PMs, promoting it. If you need to spam forum members with personal messages to get some activity going i don't know what to say.
Will be avoiding Qtum and telling everyone thats just spam generated hype, cheers.