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Author Topic: [ANN] (QTUM) - A Scalable Smart Contract Platform w/ Proof of Stake  (Read 523804 times)
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April 20, 2017, 11:35:44 PM
 #3441





Qtum Roadmap Breakdown:

Subsection 1:



Potentially incomplete GUI, full RPC methods for contract interaction


A potentially incomplete Graphical User Interface (GUI) refers to the ‘frontend’ Qtum wallet. A Daemon is essentially a ‘service’ that runs on a server, it’s usually shortened to “D” meaning that Qtum Server or Quantum “Daemon” would be shortened to simply “QtumD”. The GUI is a wrapper that contains a compiled binary of the Qtum source code. This is usually done using the QT framework, allowing users of various operating systems to complete tasks, such as: transfer tokens, control smart contracts, create new accounts, etc. Some operations will not have graphical functions, these are usually RPC commands that require a console view, and will be operated using command line interfaces, such as viewing the network difficulty.


When the Qtum source code is compiled and permissions are assigned, the Daemon process can be started. This allows the entity running this to call on RPC commands, which are defined as “Remote Procedure Calls”. Many people who use Bitcoin wallets may not realize they already use these calls frequently, when they send and receive coins in their QT wallet. The purpose of a GUI wallet is to eliminate having to compile source code and having to learn the various RPC functions. The nature of UTXO blockchains allows Qtum to be very familiar to users who have experience with Bitcoin and other projects that fall into its family, like Litecoin.



This section of the Roadmap states that the Qtum testnet will be ready to compile, with full RPC methods for interraction with Smart Contracts that interract with the EVM (Ethereum Virtual Machine).






Subsection 2:

Designed for developers, not consumers


Stability is not the major concern at this point, the point of a Test Network is to find issues and improve the code, thus leading to a stable release. The Qtum developers will give test tokens to any interested party, allowing them to implement their ideas, and have the gas to execute contracts. These test tokens will hold no value  and are not the same as the tokens which will be given to participants of the crowdsale.

Interested parties that have been planning to develop on the Qtum platform will now be able to learn and test their ideas. Service providers, who have developed their own products, can start to explore if they will have to modify their systems to provide Qtum.

For example, if an exchange would like to list Qtum, there are so many factors that come into effect. They need to make sure their accounting systems are compatible with the various RPC calls, and may need time to adjust their platforms.









Subsection 3:



Should be stable, but features and RPC layer subject to change from community feedback

The Qtum Test Network is a lead up to the Main Network release. It’s designed to attract interested developers. Service providers that plan to adopt Qtum into their business model will be able to analyze the code so they are prepared for the Main Network release in September 2017.



The RPC layer mentioned in this section is the same part 1, but this section is about the RPC commands directly related to calling on the Qtum Daemon. Some of the typical BitcoinD calls, like “setgenerate” will obviously be removed, as this allows the user to mine for tokens with their computer, which is not needed for Qtum. The standard RPC commands will be available, but the Qtum developers may choose to add some that BitcoinD does not currently have. This is the best time for third party developers to make suggestions.

Subsection 4: 

SPV extended to support syncing contract state without full chain download


The Simple Payment Verification protocol was created before the Ethereum Virtual Machine, so it needs to be extended to allow interaction with Smart Contracts, and to allow verification and validation of a contract’s state. In order to release a wallet that does not require the entire blockchain to be downloaded (only the headers) and can control a Smart Contract, the wallet needs to synchronize the Qtum contract state.


The SPV protocol does not keep track of Smart Contract State, which is paramount to our goal here. This addition to SPV allows developers to create wallets that can validate both transactions and smart contract state, by only downloading the block headers and the interesting transaction or contract state data.


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April 21, 2017, 02:32:08 PM
 #3442

AI-Powered Smart Contract Interface Built on Qtum Blockchain
Agrello, an Estonian blockchain start-up developing smart contract solutions, has announced that it has selected the Qtum blockchain to be its infrastructure for the company’s AI-powered smart contract interface. The company has created an interface using AI, allowing users with no legal or coding skills to create, manage, and automate legally binding smart agreements which are both stored as smart contracts on the blockchain, as well as translated to legally binding documents in natural English.
According to Agrello, the solution will allow individuals and businesses to use smart contracts as a substitute and enhancement to standard paper contracts. The decision to base its technology on Qtum was announced yesterday in Shanghai, at an Qtum event. Agrello’s AI smart contract interface corresponds with Qtum’s Smart Contract Lifecycle Management solution, detailed in Qtum’s Whitepaper, which proposes an intuitive workflow to derive smart contract code from human-readable agreements and manage them in real time.More
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April 22, 2017, 12:30:02 AM
 #3443

Finance Magnates reports on the first Decentralized Application that plans to build on the Qtum Blockchain


https://www.financemagnates.com/cryptocurrency/innovation/agrello-selects-qtum-blockchain-ai-powered-smart-contract-interface/





Agrello, an Estonian blockchain startup developing business-ready smart contract solutions, has announced that it has selected the Qtum blockchain as its infrastructure of choice for the company’s AI powered smart contract interface.

The London Summit 2017 is coming, get involved!

Agrello develops an intuitive AI powered interface, allowing users with no legal or coding skills to easily create, manage, and automate legally binding smart agreements which are both – stored as smart contracts on the blockchain, as well as translated to legally biding documents in natural English.

According to Agrello, their solution will allow individuals and businesses to use smart contracts as a substitute and enhancement to standard paper contracts – a practice until recently regarded as impossible due to the complicated and obfuscated nature of smart contract technology.
Hando Rand

Explaining the company’s choice, Hando Rand, Agrello Project Lead and co-founder stated: “We’ve been searching for over a year to find a blockchain platform that would fit our needs. Qtum allows us to build a mobile-compatible and scalable smart contract solution, and hence is our technology of choice.”

Agrello’s decision to base its technology on Qtum was announced Wednesday in Shanghai, at an Qtum event. The Qtum project has recently raised $15.6 million in one of the industry’s fastest token crowd-sales to date, and seeks to open its platform for public use in Q3 this year.






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●▬●▬●▬● First UTXO Based PoS Smart Contract and DAPP Platform ●▬●▬●▬●
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April 22, 2017, 02:58:32 AM
 #3444

Finance Magnates reports on the first Decentralized Application that plans to build on the Qtum Blockchain


https://www.financemagnates.com/cryptocurrency/innovation/agrello-selects-qtum-blockchain-ai-powered-smart-contract-interface/





Agrello, an Estonian blockchain startup developing business-ready smart contract solutions, has announced that it has selected the Qtum blockchain as its infrastructure of choice for the company’s AI powered smart contract interface.

The London Summit 2017 is coming, get involved!

Agrello develops an intuitive AI powered interface, allowing users with no legal or coding skills to easily create, manage, and automate legally binding smart agreements which are both – stored as smart contracts on the blockchain, as well as translated to legally biding documents in natural English.

According to Agrello, their solution will allow individuals and businesses to use smart contracts as a substitute and enhancement to standard paper contracts – a practice until recently regarded as impossible due to the complicated and obfuscated nature of smart contract technology.
Hando Rand

Explaining the company’s choice, Hando Rand, Agrello Project Lead and co-founder stated: “We’ve been searching for over a year to find a blockchain platform that would fit our needs. Qtum allows us to build a mobile-compatible and scalable smart contract solution, and hence is our technology of choice.”

Agrello’s decision to base its technology on Qtum was announced Wednesday in Shanghai, at an Qtum event. The Qtum project has recently raised $15.6 million in one of the industry’s fastest token crowd-sales to date, and seeks to open its platform for public use in Q3 this year.



Very cool, this is machine readable contracts on the blockchain? I read somewhere this is like "real" smart contracts that are valid contracts. Great to see this project on Qtum.

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April 22, 2017, 07:01:37 AM
 #3445

do you have a plan to enter big exchanges this year?

i think we will wait until main net release on sept, we need main net for exchage, except IOU
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April 22, 2017, 05:10:38 PM
 #3446

Finance Magnates reports on the first Decentralized Application that plans to build on the Qtum Blockchain


https://www.financemagnates.com/cryptocurrency/innovation/agrello-selects-qtum-blockchain-ai-powered-smart-contract-interface/





Agrello, an Estonian blockchain startup developing business-ready smart contract solutions, has announced that it has selected the Qtum blockchain as its infrastructure of choice for the company’s AI powered smart contract interface.

The London Summit 2017 is coming, get involved!

Agrello develops an intuitive AI powered interface, allowing users with no legal or coding skills to easily create, manage, and automate legally binding smart agreements which are both – stored as smart contracts on the blockchain, as well as translated to legally biding documents in natural English.

According to Agrello, their solution will allow individuals and businesses to use smart contracts as a substitute and enhancement to standard paper contracts – a practice until recently regarded as impossible due to the complicated and obfuscated nature of smart contract technology.
Hando Rand

Explaining the company’s choice, Hando Rand, Agrello Project Lead and co-founder stated: “We’ve been searching for over a year to find a blockchain platform that would fit our needs. Qtum allows us to build a mobile-compatible and scalable smart contract solution, and hence is our technology of choice.”

Agrello’s decision to base its technology on Qtum was announced Wednesday in Shanghai, at an Qtum event. The Qtum project has recently raised $15.6 million in one of the industry’s fastest token crowd-sales to date, and seeks to open its platform for public use in Q3 this year.






thank you for the updates

that's really cool.



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April 22, 2017, 05:11:38 PM
 #3447

people already start trading at bter?

what happened?


running farm worldwide
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April 23, 2017, 02:45:04 AM
 #3448

Development Update:



Over the last few weeks, the Qtum mobile team has been work on the lite wallet Smart Contract functions. Yesterday, we produced some screenshots that showcase what to expect in the months to come.

Here are some details:


1, The mobile wallet is pre-alpha, operating in a very early Test Network

2, The screenshots show that you can create your own tokens as part of a contract, to launch your own project in 3 steps.

3, The SPV integration is not yet complete, it's all going through a centralized server right now. This will be ready after the Main Network is released.

4, We are taking suggestions on which Smart Contract function you would like included in this software.


thank you!


















the mobile wallet is great!

so i can release my token in this wallet?

how much you charge for release one token?

thank you!
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April 23, 2017, 02:46:57 AM
 #3449

https://forum.qtum.org/topic/109/qtum-development-updates-april-21st-2017


Qtum Technology Updates (17th April)

Changes made through this week to the core wallet:

Bugs fixed:

[Consensus/mining] Fixed segwit block construction to properly handle EVM refund transactions in the AAL

[Consensus/EVM] Fixed an integer overflow issue where gas values were sometimes seen as negative

[RPC/wallet] Fixed createcontract and sendtocontract bug where inputs would sometimes be signed in the wrong order

Work completed:

[Consensus/chain] Implemented PoS compatible difficulty algorithm which adjusts the difficulty with every block, rather than every two weeks

[Misc] Ported Bitpay features to Qtum, however, they will not be imported to the main wallet "master" branch at this point, and will remain in their own branch.

[Builds] Updated the code to have no compiler warnings
[Tests/regressions] Added several automated regression tests for OP_CALL (previously named OP_EXECASSIGN)

[Consensus/PoS] Added several pieces of staking data to the blockheader, which allows for syncing and partially-validating block headers before syncing transaction body data and witness signature data (this results in faster syncing, and more secure block validation when without witness data)

Ongoing in-progress work:

[Consensus/AAL] Adding the "condensing transaction" design to the AAL which greatly simplifies the accounting process and eliminates several weaknesses in the original design

[Consensus/PoS] Adding rules for PoSv3 to fully validate PoS blocks for consensus purposes
Design work:

[Consensus/EVM] Formalized the format of the version argument for OP_CALL and OP_CREATE to make future soft-forks simple


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April 23, 2017, 04:03:22 AM
 #3450

people already start trading at bter?

what happened?


Its an ICO from qtum but still its an over inflated token, TX ID`s should be presented for the future investors.
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April 23, 2017, 07:36:33 AM
 #3451

It worth?
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April 23, 2017, 01:59:36 PM
 #3452

Does anyone invest in ICO qtum?
If there can show TX id

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April 23, 2017, 06:36:01 PM
 #3453

Does anyone invest in ICO qtum?
If there can show TX id

There's no txid yet, right?
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April 24, 2017, 12:00:44 AM
 #3454

BitcoinMagazine.com discusses the first Decentralized Application that plans to build on the Qtum Blockchain


"Agrello, a blockchain startup developing artificial-intelligence (AI) powered smart contract solutions, has selected the Qtum blockchain as the infrastructure for its smart contract interface, The announcement was made in Shanghai this week."




https://bitcoinmagazine.com/articles/agrellos-ai-powered-smart-contract-interface-be-built-qtum/











Agrello, a blockchain startup developing artificial-intelligence (AI) powered smart contract solutions, has selected the Qtum blockchain as the infrastructure for its smart contract interface, The announcement was made in Shanghai this week.

The Estonia-based company’s purported business case is that its interface allows users with no coding skills to create and manage automated smart contracts that will be stored and secured on the Qtum blockchain while being translated into documents in natural English. According to Agrello, their solution will allow individuals and businesses to use smart contracts as a substitute for and enhancement to standard paper contracts.

Speaking with Bitcoin Magazine, Co-founder and CEO of Agrello Hando Rand described his path from doing early research on what had not yet been termed “smart contracts” at Tallum University of Technology. He was “blown away” when Ethereum was first announced as he realized that blockchain technology could be the means for his work to become reality.

Rand said of the choice to build on Qtum that his team has been “searching for over a year to find a blockchain platform that would fit our needs. Qtum allows us to build a mobile-compatible and scalable smart contract solution, and hence is our technology of choice.”

Qtum Co-Founder and CEO Patrick Das weighed in on the news to Bitcoin Magazine, “Qtum aims to build the first POS smart contract platform that is mobile supported; we welcome more and more startups to build applications on Qtum platform in the future.”

The professional legal view of smart contract technology and its potential applications in the field trends positive, and several U.S. states have passed regulations confirming smart contract applications over the last year, while formally defining what they deem smart contracts to be.

In 2016 the state of Vermont passed a law providing that a blockchain-based digital record will be considered a business record under the Vermont Rules of Evidence; just this April the state of Arizona passed a law confirming that smart contracts managed on the blockchain are considered electronic records. The Arizona law defines smart contracts as an “event driven program, with state, that runs on a distributed, decentralized, shared and replicated ledger that can take custody over and instruct transfer of assets on that ledger.”

Agrello’s AI smart contract interface corresponds with Qtum’s Smart Contract Lifecycle Management solution, detailed in Qtum’s whitepaper, which proposes a workflow to derive smart contract code from human-readable agreements and manage them in real time.The Qtum project, with management support from PWC, raised $15.6 million this March, and plans for its platform to be ready for public use in Q3 of this year.











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●▬●▬●▬● First UTXO Based PoS Smart Contract and DAPP Platform ●▬●▬●▬●
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April 24, 2017, 12:02:45 AM
 #3455

I think - QTUM is the biggest and great project, may be
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April 24, 2017, 12:04:49 AM
 #3456

I think - QTUM is the biggest and great project, may be

where your thinking come from?

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April 24, 2017, 12:53:01 AM
 #3457

Any exchanges trading in IOU slips yet?
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April 24, 2017, 03:29:07 AM
 #3458

When is the ETA for your Proof-of-stake smart contracts platform?

Is there any update on the product or at least something on the testnet?

If I'm interested to work on the Qtum blockchain as well, who should I contact?

What if I told you, we are not alone in this world?
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April 24, 2017, 04:40:41 AM
 #3459

When is the ETA for your Proof-of-stake smart contracts platform?

Is there any update on the product or at least something on the testnet?

If I'm interested to work on the Qtum blockchain as well, who should I contact?

they have a Foundation email:

Foundation@qtum.org

i think this is the fastest way

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April 24, 2017, 04:41:39 AM
 #3460

also more information from here:

forum.qtum.org


https://forum.qtum.org/category/7/qtum-dapps

running farm worldwide
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