Topic: [ANN][CRW] CROWN (SHA256) | Platform | Governance | Systemnodes | Masternodes | - page 3. (Read 316960 times)

https://medium.com/crownplatform/crown-platform-development-flash-21-07-2020-6704b8fd0cb



Dev Flash 21.07.2020
NFT resync functionality coming along. Trezor testers wanted. Crown Bounty program launched. Website drafts evolving.

Ashot
has been working on the nftoken database resync functionality. The release candidate should be ready for public testing by the end of the week. A non-mandatory update will follow shortly. This new version will resync the NFT database to avoid tx-nft db conflicts that led to client instability for some users.

New Crown-Electrum builds
are available for testing. You can get all the information in the Discord channel #bitcore-electrum-testing.

A Crown bounty program
has been launched by several contributors. Read all the details here and engage in open issues to receive rewards!

Bitcore
is progressing slowly, there are no relevant updates on this front.

Website
development for the new community presence has started after intensive feedback rounds on design and structure. You can have a look at the designs and discusssions in Discord.

Stay tuned for more development updates and general news.

https://medium.com/crownplatform/crown-bounty-program-9ad21b853e9c

Crown bounty program

Incentivising community development contributions

We are pleased to announce the launch of the Crown bounty program. Thanks to the community “sweeper” superblock proposals and some donations, we now have some funds to cover bounties for community-delivered projects.

Several months ago we reviewed the Gitlab open issues and identified some ideal candidates https://gitlab.crownplatform.com/crown/crown-core/-/issues?scope=all&utf8=%E2%9C%93&state=opened&label_name[]=Community for tackling by community members or external coders. We tagged them with the “Community” label and published a Medium article inviting community effort to resolve some of those issues. With no bounties available, unsurprisingly, the response was not great!

The original bounty projects list was a Google docs spreadsheet. Technology progresses and the list will soon be tokenised using the Crown NFT framework. The community fund does not currently have sufficient balance to cover all of the bounty program tasks. We plan to add a “Bounty” label to the Gitlab issues which are active at any one time and also tag those issues with the level of bounty allocated. This will make it easy for anyone to see which issues currently have a bounty attached, and the amount. Simply click here and there’s no need to refer to the spreadsheet.

We will continue to sweep unallocated funds from future superblocks and some community members have indicated a willingness to donate to the fund so we expect to be able to cover all of the bounty tasks in time. If you would like to donate to the community fund please send CRW to CRWW8wDhtZjv8rNfzySvsR2HyGZXRUZwJmZj

If you are interested in working on a bounty task please comment directly in the Gitlab issue, or use the Discord Gitlab updater bot to update the issue, or simply comment in the #bounty-program channel in Discord.

New Crown Platform Website designs are being worked on. Coding will start soon

Landing page http://mockupr.com/mu/kkzi9122

Roadmap page http://mockupr.com/mu/eqgr1788

Wallet page http://mockupr.com/mu/fxxx2429

More pages in work in progress

https://medium.com/crownplatform/crown-development-update-07-07-2020-b9a6e2a54f56

Crown Development Update 07.07.2020
New biweekly format to bring you the latest Crown Platform news

In this edition of the Crown development update we bring you the latest news on the NFT Framework, Bitcore, Crown-Electrum and GitLab CI/CD integration tools. Last week we skipped the development meeting and we have moved it to a biweekly rhythm. It adapts better to our current progress and brings more consistent and digested updates.

NFT Framework

Code lead Ashot has continued debugging logs and has located the main issue we have been experiencing lately, which materialises in some nodes freezing on a certain blockheight before new NFT data is written to the chain. This issue is due to inconsistency between blocks / nftoken databases and can be solved levelling out the amount of information contained in each of them before syncing to the network. In order to improve user experience, Ashot is also going to integrate a new -reindex / -resync option starting on the first NFT block instead of at block 0 so that the process will be much faster and easier to complete by affected users. These fixes are estimated to take 1–2 weeks and will be released in a non-mandatory update.

Crown-Electrum

Community developer Ahmedbodi has been working on a new version of the popular lightweight Electrum client. Testing is advanced and Trezor compatibility has been confirmed, although there are still some bugs to iron out when importing previous CRW Trezor key paths. Once everything is working smoothly, the new version will be officially released.

Bitcore / Insight APIs

Developer Zhanzhenzhen has kept up the work on Bitcore and is now integrating the nfproto APIs. Bitcore will be a key piece to develop on the NFT Framework and will be mainly ued to interact with through the Insight APIs. If you are a developer or an entrepreneur looking to use these featuers, feel free to give feedback on the specs you would like them to include.

GitLab Infrastructure and CI / CDs

The infrastructure team is working on the GitLab environment to integrate Electrum to the official Crown Platform repositories and be able to make these processes easier in future. If you want to help out with Docker or have a high level of Python knowledge, feel free to reach out and give a hand.

A Wordpress plugin to create protocols

Recently, contributor Defunctec released a wordpress plugin to create Crown Platform NF-Protocols. It is available on Github:
defunctec/crown-protocol-generator
A simple Wordpress plugin to create NFT protocols on the Crown blockchain. You need a VPS with (recommended) 2GB RAM, 1…
github.com

NFTRegSign methods

Defuncted has also provided a short and understandable explanation of the NFTRegSign modalities available when creating a new NF-Protocol:

1 (SelfSign)
Imagine being the owner of the protocol but anyone can make a token using this protocol. Someone with enough Crown to sign a NFT transaction can use this protocol to create tokens from their wallet, even though they’re not the protocol owner.

2 (SignByCreator)
Owner makes a protocol and only the owners addresses can be used to create tokens. Unlike “SelfSign” only the owner of the protocol can use addresses associated with the protocol wallet, a user for example cannot use their own addresses.

3 (SignPayer)
This allows an outside address to be used to own a NFT but the NFT must be created via the protocol owners wallet. Eg, You own a website, create a protocol with SignPayer. You can then allow users to enter their address as the NFT owner to create and own tokens using your protocol.

Heartbeat Protocol

The heartbeat NF-Protocol has been created by walkjivefly to keep historical data on Masternode and Systemnode coutns. The tokens issued by this protocol every 6 hours can be called upon to visualize historical data on MN/SN counts and can be used by anyone wanting to leverage this information.

That is all for now on the development front. You are invited to join us on Discord if you want to keep track of everything else that is going on.

Thank you for supporting the Crown Platform project!

You have probably hit the "NFT-glitch" we are experiencing and now fixing https://gitlab.crownplatform.com/crown/crown-core/-/issues/362
If you post the debug.log and we can confirm that is the case.

Does your wallet run 24/7 or do you only run it periodically? On which platform? When was the last wallet restart and did you shut it down cleanly before that?

It would be a good idea to take this opportunity to upgrade your wallet to Artem's hotfix code. The NFT-glitch hotfix builds are at OSX(DMG):

https://gitlab.crownplatform.com/crown/crown-core/-/jobs/7405/artifacts/download
and linux64:
https://gitlab.crownplatform.com/crown/crown-core/-/jobs/7406/artifacts/download
and win64:
https://gitlab.crownplatform.com/crown/crown-core/-/jobs/7407/artifacts/download

Download the appropriate artifact, unzip it, replace the crownd and/or crown-qt by the new ones.

Next you need to straighten out your chain. The quickest way will be with a snapshot of the blocks, chainstate and platform folders from one of your MNs. The alternative is to sync from the latest bootstrap but that'll take longer.

First, we have more efficiencies to implement and test on the chain, then we will open the platform to our beta testers as soon as possible and bring NFT exchange to the platform. We will finalize a business model around the service and hopefully. We look forward to engaging with some of our partners and others in establishing use cases with a focus on IoT devices used in a range of industrial applications.

Hello. Is there a problem with secure nodes on crown ? Mine are going down every 2 days without having any problems on VPS providers and I don't know what to do anymore as I even re.synced the wallets on the VPS. Any info that anyone can provide me ? Is that burger king deal for real ? :O

Thanks.

Very good exchange and analysis seen on Crown's discord that I report here:

Amazing 

Do you know when the nft tokenization platform testnet will be launched?

  Crown Platform Monitor A visualisation tool for the Crown network and blockchain https://monitor.crownplatform.com/

https://miro.medium.com/max/1400/1*6PhEJWKOiOLo5-MhTj5wqA.png

"Featuring the Crown Platform Monitor

Community developer Mark Brooker recently released a powerful visualisation tool which provides an overview of Crown Platform. A super explorer and one-stop-s..."

via @blockfolio

#CRW $CRW
 https://blockfolio.com/coin/CRW/signal/F6eTJQdROY

yes Crown CRW can largely be compared to ERC 721


Is the useful platform for its accessibility, its openness for developments and its intelligent contracts. Its ecosystem works under the commands of the community (voting system), where everything that is used has been approved by all, as was the ERC20 token standard. The ERC-20 is a standard that has been proposed to make the tokens more suitable for normal activities (such as fiduciary currencies). This standard makes it possible to issue non-fungible tokens, i.e. to specify each token for a unique task, value or object. Its effectiveness in Cryptokitties has attracted the attention of new investors, who may well use it for other purposes.

A bit fuzzy? expand a bit on the subject 🙂

ERC, what is it?
The framework for the creation and development of Ethereum goes through what is called EIP (Ethereum Improvement Proposals). These are documents that propose new functionalities, updates or applications that will be developed within the platform. These EIPs are then validated or not by all members. The EIPs are thus, quite simply, proposals of functionalities. They are then submitted to a vote in order to validate or invalidate them.

The higher version is available from Crown at https://www.crownplatform.com/governance/

In this sphere, there are innumerable topics that can deal with interfaces, intelligent contracts, consensus, networks or block and data management. ERC or Ethereum Requests for Comments is a category of EIP, which manages the domain of the token standard, including ERC-20, which is a consensus adopted within the community and is characterized by its fungible property. But there are many ERCs, each of them offers a small feature adapted to a specific use such as ERC 190 for smart contracts, ERC-181 for addresses, ERC-162 for hash etc.

EIPs are "proposals".
ERC concerns the token standard
ERC-20 was the 20th proposal
ERC-721 was the 721st proposal.


And ERC-721, how does it work?
Contrary to the ERC-20 standard which is known to everyone, the ERC-721 proposes a different use which is characterized by non-fungibility (NFT: Non Fungible Token). This particularity relates to a personal identification of each token. To better understand this specification, let's take the case of the Cryptokitties game where the ERC-721 plays a major role.

Cryptokitties is an online game whose goal is to collect virtual chats, which have a unique value. The non fungible character will allow in this case to specify the types of cats but also their peculiarities (such as eyes, paws, colors, etc). Among other things, the tokens are unique and refer to a physical or digital value, not storable as crypto-active of the same value (but of the same rank). In 2017, CryptoKitties made the buzz and ended up attracting a colossal number of players who like to collect (just like Pokemon Go or other types of online games that are about treasure hunting)!

After this buzz, other investors have understood the value of this technology and are already planning to extend it to real estate, artwork or other unique value trading. Let's say: 1 non-fungible (unique) token = a unique material asset. Thank you ERC-721. Yes it's as simple as that. Like the ERC-20, the ERC-721 has a specific objective to improve the process of using the Ethereum platform. A few conditions define the model and differentiate it from the others.

First of all, ERC-721 tokens are non-fungible. This characteristic is summarized in the term NFT (Non Fungible Token), which implies a unique identification number for each token. Secondly, they are tokens that cannot be subdivided because they represent a particular whole as explained for the case of CryptoKitties, i.e. an ERC-721 token for a real value such as a colour or a particular good (it cannot be subdivided to the thousandth or hundredth, so 1 token remains the smallest reference).

You wouldn't want to dismember your virtual chat? Wouldn't you? Voila! Let's say that a non-fungible token is "whole" and unique.

The case of using several units is possible despite the personal identification of each token, however, we won't be able to store ERC721 tokens as peers.

A token with a very great potential
Anything in the area of personal identification can be governed by ERC-721. The closest example has been that of collector's games, but in another, more economic context, it could encompass a very large number of fields such as works of art or even land ownership.

Indeed, the registration of a parcel of land can be secured by non-fungible token technology. As in the case of the Fieldcoin project, the two types of coins including the ERC-20 and ERC-721 have been mixed for two different uses: the ERC-721 will be used for matching parcels of land (for the notion of uniqueness) while the ERC-20 will be used for standard exchanges (of money) on the platform.


Crown offers the cheaper equivalent, more secure (MN) and better!

Why is this? Why? How?



NFT Framework
Simple recording of assets on the blockchain. The NFT (non-fungible tokens) framework is a registry subsystem that allows the community to register physical or digital assets on Crown's blockchain.

What are non-fungible tokens?
NFTs offer unique features that make them different and digitally rare. Take airline tickets for example - although they look similar, they contain passenger information that is unique. The same goes for cars, people, buildings, legal contracts, patents - basically, most physical and digital assets are non-fungible: and therein lies the enormous opportunity for NFTs. NFTs have unique properties, just as one asset is not equal to another asset in the same set, so are non-fungible tokens. Most tokens such as crypto-currency are fungible - they are primarily monetary and interchangeable, so is money.

Technical documentation of the NFT framework
The technical manager, Artem, has published a technical documentation of the NFT framework on Medium and a series of 3 educational videos for developers.






TECHNICAL DOC ON MEDIUM  https://medium.com/crownplatform/crown-platform-nft-framework-18d88f9db76

TECHNICAL DOC PART 2 ON MEDIUM  https://medium.com/crownplatform/crown-platform-nft-framework-part-2-f713fe6cd81c

SANDBOX INSTRUCTIONAL VIDEO https://www.youtube.com/watch?v=2GywilJsaes

CREATING NFT PROTOCOLS AND TOKENS VIDEO https://www.youtube.com/watch?v=RZal25BIV1k

READING NFT PROTOCOLS AND TOKENS VIDEO https://www.youtube.com/watch?v=5rvd2tLvHG4



Use of NFT tokens
NFTs can be used in a variety of real-world use cases where asset registration is desirable or required. Very good examples can range from intellectual property registries, antique watches, digital art, endangered species or trees, medical records, real estate, legal contracts, notary services and many other examples. What is exciting about these registers is that they are recorded forever on an independent and democratically managed blockchain, which is governed by the decentralized autonomous organization of the Crown. The owners of NFTs can use these records as immutable proof that these assets - documents, know-how, cars, insurance policies, medical records, intellectual property, etc. - exist and have specific non-fungible characteristics at the time they are time-stamped on the blockchain . Build your NFT driver now!


https://monitor.crownplatform.com/?p=nfts

TESTNET NFT GENERATOR https://crwwallet.net/nft-guide-testnet/

CURRENTLY KNOWN USE-CASES https://docs.google.com/spreadsheets/d/1ejbUm9R0K8Rd-jAjEpx-thi7pdAuaBJ7a-GlZl2w7BI/edit#gid=0

EXPLORE REGISTERED PROTOCOLS https://monitor.crownplatform.com/?p=protocols

EXPLORE REGISTERED NFTS https://monitor.crownplatform.com/?p=nfts

thank you @Do_zzze

https://medium.com/crownplatform/crw-is-now-on-polispay-cfd6da3171a4

CRW is now on PolisPay
Adding more real-world utility to Crown Platform


PolisPay has released a new version for their popular Desktop application and one of the new highlights is added support for CRW. You can now store, send and receive CRW on the non-custodial PolisPay wallet, as well as use them for a battery of services that are provided in-app such as gift cards, vouchers, phone and card top ups. More upcoming functionalities like the long awaited “Shift” function to swap coins will see the light along with the new mobile versions of the app once Google Play and App Store validate it in the next days.

To help the Crown Platform community onboard PolisPay and learn how to use it, the PolisPay team will be holding a Webinar on Tuesday 19 May at 15:00 UTC. The details will be shared through Twitter, Discord and Telegram, so stay tuned!

You can download the latest PolisPay v8.5.0 desktop application here: https://github.com/grupokindynos/polispay-releases/releases/tag/v8.5.0

Thank you for supporting Crown Platform!

the Platform Monitor, and added geolocation is very useful

https://medium.com/crownplatform/crown-development-meeting-minutes-04-05-2020-58c082db9eb6

Crown development meeting minutes 04/05/2020
Just the facts, ma’am

Present: crowncoin-knight, Crownfan, pjcltd, walkjivefly

Ashot couldn’t make the meeting but afterwards sent a very short report saying he is still working on the NFT integration and expects it to take about another two weeks. He also provided a link to the essential barebones NFT transaction structure which has now been passed on to the Bitcore and Electrum developers.

There is no progress on the NFT trading design specification documentation.

Community developer Zhen is still working on the Bitcore NFT adaptation. He asked for a brief requirements specification. Our minimum requirements are:
    * correctly decodes NFT transactions
    * it can be used to register both NFT protocols and NF tokens.

    crowncoin-knight will check with Farid of Chronovault what else he requires from it.

Our “on loan” MUE engineer is trying to get ElectrumX to sync and is currently stuck at the first block with NFT transactions. There may be as yet undiscovered NFT-related issues in the Electrum-Crown wallet code as well.
   
Crownfan has been testing PolisPay. The integration is not quite complete yet but hopefully will be released this week.

walkjivefly has added dedicated competition and CRWcard pages to the Platform Monitor, and added geolocation, country totals and map display to the masternode and systemnode pages.

A number of users are experiencing block validation errors on some blocks containing NFT transactions. Their node or wallet ends up banning all of its peers and/or being banned by all of its peers and is then stuck, unable to do anything. This only happens to a small number of users on a small number of blocks. The symptoms are “well known”, the underlying reason is not. Ideally, we need Artem to investigate since Ashot has not had time to do so. Unfortunately, despite there having been at least seven occurrences we know of, most victims have not been uploading their debug.logs as requested so we have very little documentation for Artem/Ashot to work from. The problem does not reproduce at will which makes debugging it much harder.

I didn't tweet either too. You inspired me here's my contribution to the cause


@CrownPlatform I just registered #CompetitionEntry #NFT c778dd07fed97e076463e68c7422af9d14030e9b92ce50ce94d02202b160704b representing https://i.goopics.net/dVKpa.gif on the $CRW Crown blockchain

Sorry i don't use twitter but @CrownPlatform i just registered #CompetitionEntry #NFT 0e974a5df827424c86771a5a8f9ad6863b07a942fc5156799689fae162b8d608
representing https://i.ibb.co/NZKZvCv/my-playlist-random-mode-recommended.png the $CRW Crown blockchain

https://monitor.crownplatform.com/index.php?p=competition

https://medium.com/crownplatform/lets-register-the-most-original-nft-on-the-crown-blockchain-e73581272fd5


i have used https://download.cnet.com/MD5-SHA-Checksum-Utility/3000-2092_4-10911445.html