When and how do i have to whitelist some accounts for publishing the price feed?

You can do it from the UI after you create the Smart Asset.
When you are the issuer in the asset page you have a feed producer tab, where you can grant some accounts the right to publish feeds.

Does anyone have knowledge about published the price feed?
-How do you sent the price feed?
-how can you make a price feed?

http://docs.bitshares.org/bitshares/tutorials/publish-feed.html

@zapata42 just to confirm, your BTS account is 'zapata42', yeah?

Yes, it's my account.

Do you have any news from the witness?

If no need to change the back end, anyone can make a proof of concept UI for it.

Unfortunately I think it needs a new margin call management formula.

Ideally an asset issuer should be able to provide a custom margin call formula through a small Domain Specific Language.
This would literally allow to build any type of products.

There was a link about ETF: https://bitsharestalk.org/index.php?topic=25994.0, Please contact the author of that post.

Sorry I was too slow to answer

Fox provides wrong price feeds?

It seems it's 10% away from average median on bitCNY: https://roelandp.nl/bitshareswitnesslog/

Code: [Select]

rate_cny["HERTZ"] = compute_hertz() * rate_cny["USD"]
In the above snippet of code, does

Code: [Select]

rate_cny["USD"] result in the bitCNY:bitUSD rate, or the BTS:bitUSD rate?

If it's not BTS:bitUSD then it will not line up with the other hertz price feeds.

It is: CNY/USD rate (FIAT not bit).

The rates are taken from hq.sina.cn (see btsprice/sina.py).  Yahoo Finance API could be as source also, but the service has been closed by Yahoo. It might worth updating the scripts to get another source of rates like Alpha Vantage API (https://www.alphavantage.co/).. but this is another topic.

The formula does not end here, you have at btsprice/feedprice.py:161
self.price_queue[asset].append(bts_price_in_cny / self.bts_price.rate_cny[asset])
The main work (and difference) of alt's script is to compute 'bts_price_in_cny' from a variety of exchange's _order books_ (not tickers), then compute all other prices using the rate CNY / XXX.
I didn't change this principle, as I think it's the behavior expected by the witnesses are using this script maybe because they trust the BTS/CNY rate more than the others.

This mean the complete formula is:
BTS/CNY / (compute_HERTZ() * CNY/USD)
I hope this is fine.

Do not hesitate to do a review of the pull request. It will be easier to discuss around the code.

Quote from: zapata42 on March 26, 2018, 09:23:09 pm

I'm not a witness so I can't test the publication. I'll try to setup it on testnet when I will have some time (probably next week).
Let me know if a witness using alt's script is avialable for testing.

I've got the hertz name reserved on testnet, I can provide you price feed publish rights on testnet if you're interested.

In the mean time, there were multiple witnesses on bitsharestalk who stated that they would consider supporting hertz once integrated into btsprice - I'll reach out to them in the next couple days.

I'll contact you or any witnesses in private so we can proceed with more testing.

Quote from: zapata42 on March 23, 2018, 11:03:56 am

Quote from: clockwork on March 23, 2018, 09:49:29 am

However, I insist that there is NO way they do it without complete control over the parameters (e.g. network transaction fee etc.) which means over 51% committee.

At least if I was in their shoes, there is no way I'd embark on such a massive business venture, change my business model and move my operations to an exchange where I don't control the actual fees.

Sure 51% of the commitee is very decentralized ;-)
Good luck to bring other business on top of your platform!

What is the definition of a Decentralized Exchanche for Binance?

I'm guessing with regards to servers, order matching etc Just generally having the entire system work p2p.

Blockchain parameters are always handled by the developers in other platforms..

I think BTS might be a step too far for them

To get a p2p platform you need to give an incentive to blockproducers. So they will pay for the infrastructure, and it should be more expensive than sharing this cost with other business as on Bitshares.

Also if block producers start to disagree with the centralized decision on fees, they will start to hard fork. This situation is more likely as there is no transparent decrentralized governance.

They say they want to build a community, this comes with some tradeoff...

The cashflow mecanism with the asset fee / transaction fee separation, the referral/referee program, and all are made to build a business on top on the public network. Many solutions could be found to reach an agreement. This negotiation should happen, and we should learn from the output.

Quote from: xeroc on March 22, 2018, 12:33:38 pm

Assuming that the BBF applied for that hackathon, what reasons would there be for Binance to
not fork the BitShares Code and instead use the existing blockchain?

* forking is not trivial
* skilled and experienced (!) developers are hard to find
* we have an existing ecosystem (community, users) that can't be forked so easily
* BTS already has value, development of codebase basically pays for itself

IMO we have much to gain and little to lose from applying.

I completely agree with you.

I would add / explicit some points:

  - Bootstrapping a truly decentralized / resilient community is hard and expensive (marketing to find witnesses, organize the governance, build trust...)
  - Building a decentralized exchange when you are a centralized company has no meaning (even more if you are the unique gateway). They will waste a lot of time and effort to convince others to join. If decentralization really matters to them, it is smarter to join Bitshares platform.
  - They will benefit of our worldwide decentralized infrastructure for free.
  - They get closed source third party applications like cryptofresh, bts.ai, ... for free
  - They will benefit of existing and future liquidity like bitspark, reserve fund, and other gateway bring
  - They will be able to list to existing smart assets (bitXXX, hero, Hertz, bittwenty/bittwentix, nasdaq,...) and attract their volume for free
  - They will benefit directly from the Bitshares (DAC/Financial Platform) marketing effort, and indirectly from other business marketing.
  - Development effort could become a revenue instead of a cost! (= worker proposal).
  - The development effort and cost is mutualized with all the others participants.
  - Building open source / decentralized software is really different than doing a closed source centralized software, you need the (really rare) appropriate skills and experience on open source development, blockchain/event based systems and decentralization.
  - By applying Bitshares community show their will to accept them in the community. It is not a wise move to fork a project that share the same goal as you and propose collabration, you fork because you have different ideas.
  - They should worry about getting more time to focus on AML / KYC / tax compliance, not rebuilding what already exists.
  - They already have the bridge between the dex and their cex

I think we should show them how they could setup their BNB token with the example of cyrptobridge or obits.
It can also be the opportunity to write an open source public example on how to build a deposit/withdraw gateway.

Imho getting a big influence is currently not so costly. You don't want to own too much anyway (this will kill the decentralized aspect). 30% should be the high cap. If you are active and big, many poeple will follow you (as a proxy, or vote in your direction). So 200M BTS should be enough. You should be able to get them with 30M-40M dollars max in current market conditions, which is nothing for a serious company.

I think blockchain industry is currently too fragmented, the future will be made of merges and acquisitions not forks. It is just a matter of time to see massive takeover bids on Bitshares.

I think we should apply for the contest. Bitshares as a financial platform have been made exaclty for that.  If we don't win we should learn why and fix the issue.
Maybe it worth a community vote to see if everyone agree we should make some efforts on that direction, as this could have a major impact for the users, but also for existing business. I'm very curius to know the position of existing gateways on the topic...

Do we know why they state "Currently, decentralized exchanges are inefficient and difficult to operate for the average user."? What is their level of knowledge on Bitshares? I hope they did some research before starting this kind of project...