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Messages - abit

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1
General Discussion / Re: [Migration] Forums now hosted on new servers
« on: July 21, 2021, 12:40:24 pm »
On the post list page, the new post label is now displays as text "New" with the same color to the title, makes it difficult to see.

* avatars have been recovered
* logout issue has been fixed
* email sending will be fixed shortly
Thanks.

2
General Discussion / Re: [Migration] Forums now hosted on new servers
« on: July 19, 2021, 03:24:33 pm »
Thanks.

There were some issues yesterday, not sure if fixed.

- Avatars of some old accounts are gone (check yours). And unable to upload new avatar due to file system permission issues. I've updated my avatar to an external link.
  I could see bitcrab's avatar just now, but now it disappeared.
- I am getting logged out automatically very soon (E.G. refresh page after 2 minutes)

3
更新一下,

GDEX 充提 API 域名已改为 https://api.52bts.net/

手机钱包 BitShares Mobile (BTS++) v7.4 已经修复了 GDEX 充提问题。
网页钱包代码已合并,新版本待发布。


4
一、强清单和爆仓单撮合

在如下两种情况时:
* 存在爆仓单时,申请强清
* 存在强清单时,出现爆仓

1. 撮合立即发生(以前版本需要等满24小时)。如果强清单较大,剩余部分仍需等待,且仍然不可撤销。
2. 成交价为 喂价 / (MSSR-MCFR) ,也就是说与可成交的最低买单价相同(以前版本会按 喂价*(1+FSO) 也就是说大大有利于爆仓单的价格成交)。
3. 极端情况下,当喂价下降太快导致债仓抵押率不足、无法按 喂价/(MSSR-MCFR) 成交时,按债仓实际抵押率成交。这种情况下,如果强清单总额较小,成交后债仓仍有剩余,会触发全局清算。如果强清量较大,吃完一个爆仓单后,后面的爆仓单因为抵押率稍高,所以后面的成交价格可能更低。
4. 如果存在比上述成交价更高的买单,爆仓单优先与买单成交,这种情况买单是 maker ,所以按买单价成交
5. 爆仓单的 TCR 目标抵押率 在撮合时正常生效,和用买单吃爆仓一样
6. 爆仓单按 MCFR 支付爆仓手续费,和用买单吃爆仓一样
7. 这种情况成交的强清不需支付 FSFP 强清费
8. 成交量不占用每小时的强清额度
9. 如果盘面上存在比爆仓单价格更低的卖单,强清会越过这些卖单,直接与爆仓单成交,利于提高总体抵押率


另:强清操作费已经大幅下调。


二、黑天鹅收费

1. 出现黑天鹅事件导致全局清算时,根据抵押率最低的债仓的抵押率计算清算价格。
2. 抵押率最低的债仓,清算时,抵押品分两部分,
* 一部分归入全局清算池,数量为: 抵押品数量 / MSSR
* 一部分归入资产手续费,数量为: 抵押品数量 * (MSSR-1) / MSSR
也就是说,该仓位不再有额外抵押品返还,清算价 = 该仓位抵押品数量 / 债务 / MSSR 。
(其他仓位仍然会有部分抵押品返还)
3. 所有债仓都按照上述价格进行清算,债仓关闭,支付第一部分抵押品到清算池
4. 清算时,按照喂价计算处于爆仓状态的债仓,支付第二部分(手续费)。不处于爆仓状态的债仓不支付手续费。
 
说明:
1. 结合强清撮合规则,bit资产持有者在发生全局清算后再进行强清,获得的抵押品会比发生全局清算前强清要少。少的部分是 MSSR-MCFR-1 这部分,总计MSSR-1进入了资产手续费。这个规则有利于刺激 bit 资产持有者吃爆仓单,进而有利于提高总体抵押率。
2. 低抵押率的债仓支付手续费,高抵押率的债仓不支付手续费,有利于提高总体抵押率。
3. 为什么手续费是 MSSR-1 而不只是 MCFR ?这是为了避免出现数据落差。清算前爆仓单如果被吃,会支付MSSR-1的总费用,清算时仍然支付这个数量,合理。如果MSSR-MCFR部分归入清算池而不是归入手续费,则低抵押率的债仓和高抵押率的债仓清算进池价格不同,这个差异会导致
* bit资产池有者吃爆仓意愿降低
* 投机者在即将全局清算时,抵押借款,但不吃爆仓单,而是在全局清算发生后进行强清吃差价,也就是说这样反而会刺激全局清算发生
4. 当前版本代码,如果在设置了 MCFR 爆仓费的时候发生全局清算,极端情况下会出现稍高抵押率的债仓比最低抵押率的债仓清算价更低的情况。新规则避免了这个情况。
5. 关于黑天鹅发生时不进行全局清算的功能,不在本贴讨论。

相关代码: https://github.com/bitshares/bitshares-core/pull/2489
对应 issue : https://github.com/bitshares/bitshares-core/issues/2481

5
2021-06-28 强清操作费从9.6 BTS下调至0.96 BTS

6
Force-settlement operation fee is reduced from 9.65218 BTS to 0.96521 BTS .

7
图挂了

应该是获取充提地址的 API 地址被墙了。

8
任何人都可以作为资方,设置资金池,定义费率、质押资产类型及比例、时间等要求。
资金池里可以是任意资产(除非有白名单限制)。
同一资金池可以设置多种质押资产,各种资产的质押比例要求各自独立。
可以指定借款人。
可以设置借款金额上下限。
可以设置资金池有效期,开启后一段时间定期关闭,缓解时间长了价格变动太大带来的风险。

借款人借款后,如果到期不按时还款,则质押资产全部归出资方所有。
不设置喂价爆仓机制。

借出资金可灵活运用,比如提现到其他平台,最大化收益。

出资方收益有两种
- 借款人按时还款,支付相关费用
- 借款人未按时还款,质押资产归资方,质押品可能超出借款价值

这个功能主要应用场景是短期借贷。
比较好的出资方式是定期调整质押品比例要求(变相喂价)。
具体应用场景很明显,就不展开详细描述了。

顺便说下,这个功能给之前介绍的无抵押借贷功能增加了一个应用场景:借新还旧。
* 如果质押借贷A即将到期,但借款人手头没有足够资金用来还款时,可以通过无抵押借贷的方式借出资金B,进行还款,再用返还的质押品质押借出一笔新资金C归还从无抵押借贷借出的资金B,实现借新还旧的目的。

相关代码: https://github.com/bitshares/bitshares-core/pull/2479

9
任何人都可以作为资方,设置资金池,定义费率。
资金池里可以是任意资产(除非有白名单限制)。
只要有人从资金池借款,即可获得被动收益。

借方随时可以借款,无需任何抵押,唯一条件是及时还款和付清相关费用。
资金可灵活运用,最大化收益。

应用场景之一:三角套利。
* 借款,三角套利交易,获利,还款。

应用场景之二:调整债仓。可以绕开 ICR 等参数限制。
* 降杠杆:借款(抵押资产),卖出,调仓,还款。
* 加杠杆:借款(债务资产),买入,调仓,还款。

应用场景之三:应对无可用资产支付手续费的情况。
* 借款,其他交易获得资产用于支付手续费,还款。

(其他场景欢迎补充)

相关代码已初步开发完成: https://github.com/bitshares/bitshares-core/pull/2469

10
Quote
In order to allow debtors to exit their positions when they simply are not willing to hold them any longer, an auction system for those positions is created, So, any debtor can sell his position at any time. Also, a system in which any member of the community can offer to buy any debt position is implemented.

Being able to sell debt positions is an interesting idea. But if look into the details, I think it's quite complicated.

I think BSIP62 (https://github.com/bitshares/bsips/blob/master/bsip-0062.md) is a simplified version of it, even that, it's still complicated.

11
Just for the information, this post is related to the discussion on Github: https://github.com/bitshares/bsips/issues/179

Quote
... some positions could have negative CR. To prevent this, those positions are simply deleted once they reach CR<1 and their debt and collateral is transferred to the remaining, better collateralized positions.
It means the debtors who have maintained their positions better will be forced to buy the bad debts. I don't think it's desirable by those people.

Quote
As long as a debtor has collateral above MCR, he will never be force-settled.
Debt asset holders will be unhappy to see this.

The conclusion "peg is maintained" is not proven.

Quote
... creates an incentive for those who are willing to open new positions with fresh collateral and so, push BTS price upward.
Doubtful.

Quote
Whenever any position has CR < MSSR, an automatic operation (or a bot) is activated that takes the smart Asset from LPs and either buys the corresponding margin wall or force settles that low collateral position
What LP? Who deposited to the LPs so that there are sufficient debt token to be used to buy or force settle the margin wall?
To be honest, I think it's just wishful wish. Simply speaking, when the market is in a bear trend, the debt assets are being hoarded, there is no liquidity in the market nor in liquidity pools, no supply to be used to close debt positions nor to buy into the margin wall.

12
中文(Chinese) / Re: RUDEX是不是在跑路?
« on: May 24, 2021, 10:27:47 pm »
早就提醒过了。他们自己开新链了。不算跑路吧。

https://twitter.com/rudex_bitshares

https://steemit.com/rudex/@rudex/announcement-of-rudex-migration-from-bitshares-to-graphene-dates-and-terms

大概意思是:

BTS 这边所有RUDEX资产锁定,不可交易,不可转账。

5月25号到27号进行快照和数据迁移,迁移完成后开通新链上的充提。

新链地址 https://gph.ai/

13
2021年5月23日 bitCNY 最少喂价人从1人调整为3人

目前参数:
初始抵押率(抵押线) ICR 300%
维持抵押率(爆仓线) MCR 160%
最大轧空率(爆仓惩罚上限) MSSR 105%
爆仓费率 MCFR 3%
强清费率 FSFP 3%
强清价格偏移(强清补偿) FSO 2%
强清延时 24小时
每小时最大强清比例 0.5%
最少有效喂价人数 3
喂价人清单
1.2.183     hiquanta
1.2.35248   in.abit
1.2.420186  clone (yexiao)
1.2.987999  zapata42-witness
1.2.1031601 btspp-witness

借款功能目前开放,债务上限 3000 万 bitCNY
强清功能目前关闭

14
2021-05-23 bitCNY minimum_feeds adjusted from 1 to 3 for better redundancy.

Current parameters:

ICR (Initial collateral ratio) 300%
MCR (Maintenance collateral ratio) 160%
MSSR (Maximum short-squeeze ratio) 105%
MCFR (Margin call fee rate) 3%
FSFP (Force settlement fee percent) 3%
FSO (Force settlement price offset) 2%
Force settlement delay 24 hour
Maximum force settlement volume per hour 0.5%
Minimum feeds 3
Price feed producers list:
1.2.183     hiquanta
1.2.35248   in.abit
1.2.420186  clone (yexiao)
1.2.987999  zapata42-witness
1.2.1031601 btspp-witness

Borrowing is enabled. The maximum supply is limited to 30,000,000 bitCNY.
Force-settlement is disabled.

15
For people who would like to try to claim funds via CLI wallet,

the steps:
Code: [Select]
set_password
unlock
import_accounts file_name file_password
import_account_keys file_name file_password account_in_file account_on_chain
where "file_name" is the json file exported from the 0.9.3c wallet.

If the "account_on_chain" is not in the file, E.G. a newly registered account, need to import its key with
Code: [Select]
import_key account_on_chain private_key

Reference: https://t.me/btsWalletHelp/23553

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