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Topics - bitcrab

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136
General Discussion / plan for "Graphene DEVCON"
« on: December 27, 2017, 12:46:15 pm »
in 20th Jan 2018  there will be a meetup called "Graphene preDEVCON" in Shanghai, we invite some developers/entrepreneur to share their Graphene relevant projects, some possible topics are:

1.YOYOW's roadmap
2.ChenWei: A Graphene based IoT system.
3. MagicWallet's mission.
4.Introduction to DECENT
5.GXS, a data trading network
6.Harvey: oracle chain and EOS
7.GDEX
......

we called it "preDEVCON" as we regard it also as preparation to a real "DEVCON",  up to now some friends from abroad are also interested in this meetup, surely everyone is welcome however we begin to plan the real international "Graphene DEVCON".

firstly we need to decide the date for the DEVCON, it will be in March or April, now we need to collect more info to decide the exact date.

definitely we hope BM can come to Shanghai and share his ideas, so at first we need to check with him whether he would like to come and what period is ok for him.

any suggestions on this DEVCON, please reply here, your input is important for us.

137
Stakeholder Proposals / proposal to create bitXCD
« on: December 12, 2017, 01:37:08 pm »
in the past several months I have met Mr. Zheng Xiaojun several times, he is the board member of the Caribbean Free Trade Zone and is very interested in blockchain application. we discussed a lot about the possibility on creating one blockchain currency to solve a lot of problem generated in this area as the finance service there is far from developed.

I introduced Bitshares smartcoins to him and finally he agreed that this is a great solution to solve the problems in payments, exchange in that area. he would like to cooperate with Bitshares community to issue bitXCD and make it wildly used.



XCD is the symbol of Eastern Caribbean dollar, which is designed to peg USD at the rate 1USD=2.7XCD, more detail of XCD can be found here: https://en.wikipedia.org/wiki/Eastern_Caribbean_dollar

I suggest we create bitXCD soon to open a big area for smartcoin.

Mr. Zheng(left 4) and his team with Prime Minister of Dominica and other government officials


Mr.Zheng and his team with Prime Minister of Saint Lucia


Mr.Zheng is also the lead of World Blockchain Organization and Caribbean Institude of Block Chain Industry.




138
General Discussion / [ANN] Bitshares gateway GDEX is launching
« on: November 27, 2017, 12:38:22 pm »


After long time preparing, now GDEX is launching.

at first GDEX only list BTC, in recent future we will list ETH, NEO, QTUM, BCH, IOTA…etc.

Now users can only access GDEX through gdex.io, hope soon it can be integrated in the reference wallet.

GDEX is operated by OBSIDIAN TECHNOLOGY CO. PTE. LTD.  a company incorporated under the laws of Singapore Republic, the support team work in the office in Shanghai, China. 

GDEX focus on introducing high liquidities of main cryptocurrencies into DEX, we will pay much effort on market making, our goal is to make everyone in the world can trade in DEX with same or even better user experience than the best central exchange.

come on and enjoy!

139
General Discussion / review for price feeding
« on: November 18, 2017, 03:11:52 pm »
hi, @ElMato @wackou @verbaltech2 could you please check your price feeding and update the script? your feeding price is far below the reasonable figure.

the price from poloniex need to be removed.






140
General Discussion / plan to raise the bitCNY force settlement offset to 5%
« on: November 13, 2017, 04:41:42 pm »
firstly let's review what happened in the passed several days:

poloniex, the exchange with highest BTS trading volume,  has some issue and stopped processing BTS withdrawl.

BTC/BCH war lead to big fluctuation of BTC price and also the blockchain traffic jam.

thanks to China goverment, now people from China feel trouble to buy cryptocurrencies by CNY.

all these lead to a big gap between the BTS price in bitCNY and the settlement price, and this lead to endless settle orders, speculators come and exploit shorters.

Settlements purpose is to provide a last resort guarenteed exit.  In a healthy market it is not needed. 

settlers need to pay for this convenience while forcing this inconvenience on to the shorters. this is the settlement compensation ratio, and now it is set to 1% for almost all the smartcoins.

now bitCNY ecosystem has developed to an extent, which makes settlement of little sense, there's no scenario that bitCNY holders need to submit settlement to claim the value of bitCNY. on the other side, when sometimes the market is in inefficient or disrupt status, the settlement provide the opportunity for speculators to exploit the shorters and also hurt the ecosystem. this is not we want from settlement.

bitCNY is in shortage, these 2 days because of the settlement exploit it is in more serious shortage, however, now exchanges such as aex.com and xbricks.io are beginning to open bitCNY market, we can expect that the demand for bitCNY will rise rapidly to above 1 billion level. to meet this demand we definitely need to prevent the shorters from being hurt unfairly and avoid the happening of settlement exploition.

surely price feeding is a key factor  and should be improved, but in such a fragile market, feed disparity is bound to happen. we cannot expect the price feeding always be adapted in time to fit the latest market status.

what I suggest to solve this problem is to raise the settlement compensation offset to 5%, only for bitCNY, leave other smartcoins unchanged.

as now settlement contribute little to a healthy bitCNY economy, raise the offset to 5% do not hurt the peg of bitCNY and will encourage shorters to provide more bitCNY to meet the demand.

I plan to create such a committee proposal soon as the settlement exploition is still on going and no one knows when it can come to an end.

any ideas, please discuss here.










 

141
now there are endless bitCNY orders waiting to get cheaper BTS from shorters:



why this can happen?

the traffic jam of BTC blockchain and the BTC price fluctuation are the factors that lead to this.

and also there are something abnormal in exchanges, for example, poloniex has stopped processing BTS withdrawl for 5 days.



zb.com does not begin process USDT withdrawl yet.

on the other side, because of magicwallet, people can get bitCNY much more easily than before...

all this lead to the result that the settle price in bitCNY has been 3-5% lower than DEX price for several days. and lead endless settle orders.

this is unfair, and will hurt shorters and also the whole BTS economy, we need to take actions to stop this.

my suggestion:

while witness get price from exchnges, check the prices first, if one BTS price from some central exchanges is 3% lower than the price in DEX, just ignore this price.

this can only apply to bitCNY and is just to handle current abnormal conditions.

if any other better ways, please share, anyway we need to protect the endless settlement from happening. thanks!
 

142
General Discussion / AEX.COM plan to open smartcoin markets
« on: November 04, 2017, 03:36:42 am »
aex is the updated version of btc38, they now plan to open markets of bitCNY, bitUSD, bitJPY, bitKRW...


143
General Discussion / account trans.bot hacked today
« on: September 27, 2017, 03:17:02 pm »



today my daily trading account trans.bot was hacked and I lost about:

22.4 BTC
119.5 ETH
4.19M BTS
264k bitCNY




I paid heavily to my carelessness, I should not put so much assets on a daily trading account, but recently I was busy and forgot the necessity to use multi-sig account to keep big amount of assets, then the assets in trans.bot accumulated more and more before I was aware of that.

there was a debt position of more than 20M BTS there, fortunately the hacker haven't lower the collateral ration and stole other several millions BTS.

I use this account in my laptop, win10, and I also receive mails, chat in QQ, browse webs, watch videos in the same laptop.

I use this account both in light wallet and the web wallet https://bitshares.org/wallet/#/.

sometimes I connect Internet via public wifi.

yes I do not have a good habits, hope my loss can warm more users.

however I still think that we need to do some update to the wallet for higher fund security, for example, YOYOW have done some change to key management, the owner key is not saved locally but other medias, and with owner key one can update the active key to a new one by one click,  hope this can help to make the wallet more safe.


今天我的日常交易用账户trans.bot被黑了,损失大约如下:

22.4 BTC
119.5 ETH
4.19M BTS
264k bitCNY

我为自己的不谨慎付出了惨重代价,trans.bot是我日常交易用账户,本不该存放如此之多的资产,可因为最近比较忙,偷懒不用多签账户,不知不觉使得日常交易用账户里的资产越积越多。

账户里还有2000多万BTS的抵押债仓,也许我应该庆幸黑客还没有去调整抵押率再搞走几百万BTS...

使用windows系统,而且是在同时接受邮件,QQ聊天,浏览各种网站,看视频的笔记本上使用,还轻钱包和网页钱包https://bitshares.org/wallet/#/ 都有使用,还没少使用公共wifi。。。总之,首先应该责备的的确是我自己。

然而,我们的确还应该从软件上提高钱包的抗风险能力,比如, YOYOW钱包就做了很有意义的改动,主控私钥不存在本地电脑中,而是另外存储,可随时一键更新交易私钥。这些创新也很值得更新到BTS 钱包中去。


 




144
Because magicwallet now already provide an easy and flexible way for users and currency dealers to handle the bitCNY deposit/withdrawl business, transwiser will stop the deposit/withdrawl service of bitCNY.

Transwiser page will be removed from BTS wallet.

From today the goods "100bitCNY" will be unlisted from the transwiser taobao shop.

bitCNY withdrawl service will last until 2017/10/1 0:00 UTC+8, after that all the bitCNY that send to account transwiser-wallet will be sent back to the from account.

I greatly recommend all the users to use magic wallet to handle bitCNY deposit/withdrawl business and enjoy the flexibility and efficiency brought by the mobile client.

Android users can download the App from:
https://www.magicw.net/releases/magicwallet.apk

iOS version will launch soon, now iOS users can use the web version instead:
https://m.magicw.net/

magicwallet team are developing the general APIs for currency dealer service that can be integrated in all kinds of BTS wallets, kindly wait.



由于鼓鼓钱包的出现为用户和承兑商提供了一种更便捷和灵活的处理承兑业务的方式,transwiser将停止提供bitCNY的充值和提现服务。

transwiser页面将从BTS钱包中删去。

即日起相应淘宝店中的bitCNY商品下架。在淘宝店已经下了订单未收到发货的请联系客服退款。

提现业务将延续至北京时间2017年10月1日0:00,之后账户transwiser-wallet收到的bitCNY将全部返还原发出账户。

建议大家之后使用鼓鼓钱包来处理充值和提现,享受移动端钱包带来的快速,灵活和便捷。

Android用户可戳下面链接下载:
https://www.magicw.net/releases/magicwallet.apk

iOS版将尽快发布,iOS用户目前请使用网页版:
https://m.magicw.net/

鼓鼓钱包团队正在开发承兑商服务的通用API, 将来所有BTS钱包都可以方便地集成承兑商服务。



145
中文 (Chinese) / 对BSIP18要干什么的解释
« on: July 14, 2017, 06:21:16 am »

https://github.com/bitshares/bsips/blob/master/bsip-0018.md

当市场急剧下跌,爆仓的smartcoin空仓无人接盘,继续下跌就会出现黑天鹅 - 当抵押率最低的空仓抵押率已经小于100%,已经资不抵债了,就是黑天鹅发生了,黑天鹅价格 = 抵押率最低的空仓的债务量/抵押物量。

以bitCNY为例来说明

假设bitCNY发生了黑天鹅,那么按照设计,系统会自动启动global settlement,就是系统用黑天鹅价格向所有空仓提供bitCNY以帮助其平仓,同时系统获得相应的BTS,多余的抵押的BTS还给空仓所有者。之后,只有系统拥有bitCNY的空仓,但这个空仓并非是足额抵押的,抵押物数量=债务量/黑天鹅价格 。此时bitCNY依然可以交易,转账,但不能借出。

现在的情况是,发生黑天鹅后smartcoin就死了,BSIP18的目的是让发生黑天鹅之后的smartcoin能够复活。具体来讲,
一是要恢复正常喂价。
二是要用一个足额抵押的空仓来取代系统的非足额抵押的空仓。

一不用多讲, 对二来说

1.随着抵押物涨价自动复活

当抵押物涨幅足够大导致系统空仓已经足额抵押了,那么发行者拿来“”系统空仓“的抵押物”,创建一个同样的空仓同时平掉“系统空仓” 的债务,之后一切恢复正常。

2.志愿者购买
当抵押物涨幅还没达到足额抵押时,允许志愿投资者提出申请,通过添加抵押物来获取全部或部分“系统空仓”,包括抵押物和债务。



146
committee is scheduling to reduce the witness payment from 3BTS/block to 1BTS/block. it will happen soon.

details can be found here: https://github.com/BitShares-Committee/proposals/blob/master/170518_Witness_Payment_Adjustment.md

some relevant discussion can be found here: https://bitsharestalk.org/index.php/topic,24104.msg306298/topicseen.html#msg306298

147
我强烈地感觉到,在所有讨论过的新功能中,“条件支付”是目前最急迫需要的功能。

我们先看一下以下两个最适配也最需要解决方案的场景:

1:人人网关
2:BTC场外交易

还有以下不是最紧要但也可能适配的场景:

1.跨境商品交易
2.全球任务外包

作为交易,这些场景能够抽象出一种最基本的特点,就是在链上完成一个方向上的支付,然后另外一个方向上的交付在链下完成。

自然,这种交易没法直接在链上实现原子化,必须依靠某种确认+仲裁的机制才能保证正常进行,A先“条件支付”一定数量链上资产(如bitCNY)给B,同时在memo中描述清楚无异议的交易条件,选择仲裁账户C,支付,此时支付的链上资产被系统锁定。

B看到A发起的条件支付交易,在认可交易条件的前提下,在链下完成约定的交付,并且对条件支付交易进行“交付”操作(类似淘宝卖家的发货)

A对链下的交付结果无异议,对条件支付交易再进行一次“确认交付”操作(类似淘宝买家的“确认收货”操作),则锁定的资产将释放给B。交易完成。

如A条件支付后因某种原因需要取消交易,则进行“取消交易”操作,经B确认后锁定的资产退还给A,类似淘宝交易中的退货。

如果交易中发生争议,则有仲裁者C来选择支持某一方的立场,最终锁定的资产按改方立场分配。

当A发起条件支付交易时,交易对手方可以是空的,比如人人网关的场景下, A可以支付1000bitCNY给一个空账号,同时注明:995元出售,支付宝账户***,此时任何人可以选择接受此交易并通过支付宝支付995元来获得1000bitCNY,这就是人人网关。

随着BTS价格的增长,人人网关的意义越发凸显,很明显在承兑的需求快速增长的情况下两条路可以选,一是象transwiser这样的网关选择公司化运营,做大做强,二是把承兑服务的提供方也给去中心化了,由用户群体自身来提供服务。我相信,这两种方式可能都需要,而人人网关尤其需要。

而且,有了条件支付功能,BTS直接就是一个去中心化的BTC场外交易平台,这意味着什么不用多说了吧?

还有象跨境商品交易,国际任务外包,都有可能适配成条件支付支持的场景。

几个月前我发过一次帖子讨论这问题,结果是都觉得不错,然而最后还是感觉无从落地。。。https://bitsharestalk.org/index.php/topic,23800.msg302876.html#msg302876

这次希望中国的开发者们先能提供一些意见,尤其是在开发和实施的可行性和难度,成本等方面,先给出一些意见,我也会在国际社区推进讨论,希望能逐渐选定合适的开发者来开发这一功能。


148
General Discussion / WeChat group "BTS Whales"
« on: April 25, 2017, 03:50:27 am »
in order to get better communication among big BTS shareholders, we now create a wechat group "BTS Whales".

only accounts with more than 10M BTS(collaterals included) are allowed to join this group, if you are qualified and want to join, please send 1 BTS to BTS account bitcrab for verification, with leaving your wechat account in the memo, I will invite you after verification, thanks!

now there are 6 members inside, they are all Chinese, welcome more whales from all around the world to join, I believe we can discuss a lot of senseful things here.


149
General Discussion / locked 84M BTS
« on: March 12, 2017, 05:31:51 am »

150
General Discussion / Come on and build the channel to USD fiat world.
« on: March 11, 2017, 02:04:15 pm »
below pics shows the BTC price in China offsite market and poloniex at the same time.





in China the price is about 8593 CNY/BTC, in polo the price is about 1190

8593/1190 = 7.22

the goverment announced USD/CNY rate is about 6.92, however the real market rate today is about 7.15, even so there space for arbitrage trading.

I hope we can build a channel to the fiat USD world with the help of bitUSD and USDT, suppose that let non-USD world always provide more than 2000 bitUSD offer to buy USDT at 0.98-1 bitUSD, and USD world always offer more than 2000 USDT to sell at 1-1.02 bitUSD.

I can play the role to offer bitUSD, anyone would like to play the role to offer USDT? :)








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