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Topics - abit

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91
中文 (Chinese) / 新版重钱包 5.1.0
« on: January 26, 2021, 02:31:49 pm »
主要是增加一些 API 用来查询 AMM 流动性池 和 锁仓投票 相关信息，以及完善文档。

API 节点需要升级。其他节点不需升级。

详见 https://github.com/bitshares/bitshares-core/releases/tag/5.1.0

下载链接
|[Microsoft Windows](https://github.com/bitshares/bitshares-core/releases/download/5.1.0/bitshares-core-5.1.0-win64-bin.zip)|`161c349f2af47894d9458fe5da7922d192c6be97c3bccf760c505c6866b72c65`|
|[Mac](https://github.com/bitshares/bitshares-core/releases/download/5.1.0/bitshares-core-5.1.0-macos64-bin.tar.bz2)|`fd077811dff087598e3ba84632b786c53037417ab2c3630ba3d0a3e4380a61cb`|
|[Linux](https://github.com/bitshares/bitshares-core/releases/download/5.1.0/bitshares-core-5.1.0-linux-amd64-bin.tar.bz2)|`fb14af10e9b59e28d1e9ff78e23c08fe90bdfe07a1ee0d4e2b443819ad7d9cc8`|

92
General Discussion / New release: BitShares Core "Splash" 5.1.0
« on: January 26, 2021, 02:26:04 pm »
https://github.com/bitshares/bitshares-core/releases/tag/5.1.0

93
General Discussion / New testnet tag test-5.1.0
« on: January 09, 2021, 10:31:01 pm »
New testnet tag test-5.1.0 created: https://github.com/bitshares/bitshares-core/releases/tag/test-5.1.0

The main features for end users are some APIs for querying liquidity pools and tickets (stake locking-up for governance voting).

API nodes please upgrade. Other nodes no need to upgrade.

For more info please check https://github.com/bitshares/bitshares-core/milestone/35?closed=1

Draft release notes https://github.com/bitshares/bitshares-core/issues/2323

Binaries for download: https://github.com/abitmore/bitshares-core/releases/tag/test-5.1.0

94
中文 (Chinese) / 测试网版本 test-5.1.0
« on: January 09, 2021, 10:26:49 pm »
测试网新版 test-5.1.0 已发布: https://github.com/bitshares/bitshares-core/releases/tag/test-5.1.0

主要是增加一些 API 用来查询 AMM 流动性池 和 锁仓投票 相关信息。

API 节点需要升级。其他节点不需升级。

详细功能清单 https://github.com/bitshares/bitshares-core/milestone/35?closed=1

Release notes 草稿 https://github.com/bitshares/bitshares-core/issues/2323

命令行工具（重钱包）下载地址 https://github.com/abitmore/bitshares-core/releases/tag/test-5.1.0

95
General Discussion / 2020-11-25 Old bitCNY parameters adjustment
« on: November 25, 2020, 11:11:47 am »
Purpose:
to mitigate single-point-of-failure issue by adding more price feed producers (step by step).

Changes:

Added price feed producers:
* clone
* btspp-witness

Current parameters:

ICR (Initial collateral ratio) 210%
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%
Price feed threshold 0.12 CNY/BTS (temporary)
Price feed producers list: in.abit, clone, btspp-witness (temporary)
Minimum feeds 1 (temporary)

Borrowing is enabled. The maximum supply is limited to 21,000,000 bitCNY.
Force-settlement is disabled.

96
中文 (Chinese) / 2020年11月25日 老bitCNY参数调整
« on: November 25, 2020, 11:08:12 am »
参数调整原因： 逐步过渡到多人喂价，减少单点风险。

今日操作：
喂价人清单 增加 btspp-witness 和 clone

目前参数：
初始抵押率（抵押线） ICR 210%
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%
最低喂价 0.12 （暂行）
喂价人清单 in.abit, clone, btspp-witness （暂行）
最少有效喂价人数 1 （暂行）

借款功能目前开放，债务上限 2100 万 bitCNY
强清功能目前关闭

97
General Discussion / 2020-11-23 Old bitCNY parameters adjustment
« on: November 23, 2020, 08:05:48 am »
Purpose:
to improve market liquidity.

Changes:
ICR (Initial collateral ratio) adjusted from 240% to 210%
Maximum supply adjusted from 20,000,000 bitCNY to 21,000,000 bitCNY

Current parameters:

ICR (Initial collateral ratio) 210%
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%
Price feed threshold 0.12 CNY/BTS (temporary)
Price feed producers list: in.abit only (temporary)
Minimum feeds 1 (temporary)

Borrowing is enabled. The maximum supply is limited to 21,000,000 bitCNY.
Force-settlement is disabled.

98
中文 (Chinese) / 2020年11月23日 老bitCNY参数调整
« on: November 23, 2020, 08:03:27 am »
参数调整原因： 促进合理抵押。

今日操作：
初始抵押率（抵押线） ICR 从 240% 调整为 210%
债务上限从 2000 万 bitCNY 调整为 2100 万 bitCNY

目前参数：
初始抵押率（抵押线） ICR 210%
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%
最低喂价 0.12 （暂行）
喂价人清单 in.abit （暂行）
最少有效喂价人数 1 （暂行）

借款功能目前开放，债务上限 2100 万 bitCNY
强清功能目前关闭

99
General Discussion / 2020-11-22 Old bitCNY parameters adjustment
« on: November 22, 2020, 10:32:03 am »
Purpose:
to encourage traders to use the order book and the AMM liquidity pools.

Changes:
Disable force-settlement.

Current parameters:

ICR (Initial collateral ratio) 240%
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%
Price feed threshold 0.12 CNY/BTS (temporary)
Price feed producers list: in.abit only (temporary)
Minimum feeds 1 (temporary)

Borrowing is enabled. The maximum supply is limited to 20,000,000 bitCNY.
Force-settlement is disabled.

100
中文 (Chinese) / 2020年11月22日 老bitCNY参数调整
« on: November 22, 2020, 10:25:24 am »
参数调整原因： 引导用户使用订单簿和AMM流动性池功能进行交易。

今日操作：
关闭强清功能

目前参数：
初始抵押率（抵押线） ICR 240%
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%
最低喂价 0.12 （暂行）
喂价人清单 in.abit （暂行）
最少有效喂价人数 1 （暂行）

借款功能目前开放，债务上限 2000 万 bitCNY
强清功能目前关闭

101
General Discussion / 2020-11-21 Old bitCNY parameters adjustment
« on: November 21, 2020, 04:59:47 pm »
Purpose:
to maintain the peg of bitCNY in the long run and mitigate a potential issue that some debt positions' collateral ratio becomes too low.

Changes:
ICR (Initial collateral ratio) adjusted from 180% to 210%, then adjusted to 240%

Current parameters:

ICR (Initial collateral ratio) 240%
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%
Price feed threshold 0.12 CNY/BTS (temporary)
Price feed producers list: in.abit only (temporary)
Minimum feeds 1 (temporary)

Borrowing is enabled. The maximum supply is limited to 20,000,000 bitCNY.

102
中文 (Chinese) / 2020年11月21日 老bitCNY参数调整
« on: November 21, 2020, 04:55:02 pm »
参数调整原因： 防范风险，缓解因 BTS 价格短时间大幅上涨导致的 bitCNY 贬值压力。

今日操作：
初始抵押率（抵押线） ICR 从 180% 调整为 210% ，而后再次调整为 240%

目前参数：
初始抵押率（抵押线） ICR 240%
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%
最低喂价 0.12 （暂行）
喂价人清单 in.abit （暂行）
最少有效喂价人数 1 （暂行）

借款功能目前开放，债务上限 2000 万 bitCNY

103
General Discussion / 2020-11-17 Old bitCNY parameters adjustment (seminormal price feeds)
« on: November 17, 2020, 04:00:25 pm »
Purpose:
to restore the peg of bitCNY in the long run and mitigate the issue that some debt positions' collateral ratio is too low.

Changes:
ICR (Initial collateral ratio) adjusted from 330% to 180%
MCR (Maintenance collateral ratio) adjusted from 290% to 160%
MSSR (Maximum short-squeeze ratio) adjusted from 190% to 105%
MCFR (Margin call fee rate) adjusted from 7% to 3%
FSFP (Force settlement fee percent) adjusted from 1% to 3%
Price feed threshold adjusted from 0.22 CNY/BTS to 0.12 (temporary)
Price feed producers list: in.abit only (temporary)
Minimum feeds adjusted from 7 to 1 (temporary)

Current parameters:

ICR (Initial collateral ratio) 180%
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%
Price feed threshold 0.12 CNY/BTS (temporary)
Price feed producers list: in.abit only (temporary)
Minimum feeds 1

Borrowing is enabled. The maximum supply is limited to 20,000,000 bitCNY.


Note:

* As of writing, market trading price of BTS on CEXs is around 0.123 CNY, the collateral ratio (CR) of the debt position with the lowest CR in the BitShares DEX is 161%, the corresponding black swan price is 0.076 CNY.


Here is a summary to in.abit's price feed script:

* update up to 12 times per hour, at random intervals; no update if price change is less than 0.1%
* main data source is Binance and Huobi, with low-weight adjustments from AEX, Bittrex and BitShares DEX
* black swan protection is enabled
* price threshold is 0.12

Risks related to price feeds (market participants please be aware):
* due to the low weight of direct CNY market, the final price need to be derived from BTC and USDT markets, so the price may be a bit off
* due to potential technical issues, update of price may be delayed for a short or long time

104
中文 (Chinese) / 2020年11月17日 老bitCNY参数调整（准正常喂价）
« on: November 17, 2020, 03:38:08 pm »
参数调整目的：争取恢复 bitCNY 锚定，缓解部分借款仓位抵押率过低的问题。

今日操作：
初始抵押率（抵押线） ICR 从 330% 调整为 180%
维持抵押率（爆仓线） MCR 从 290% 调整为 160%
最大轧空率（爆仓惩罚上限） MSSR 从 190% 调整为 105%
爆仓费率 MCFR 从 7% 调整为 3%
强清费率 FSFP 从 1% 调整为 3%
最低喂价 从 0.22 调整为 0.12 （暂行）
喂价人清单调整为 in.abit 单人喂价（暂行）
最少有效喂价人数从 7 调整为 1 （暂行）

目前参数：
初始抵押率（抵押线） ICR 180%
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%
最低喂价 0.12 （暂行）
喂价人清单 in.abit （暂行）
最少有效喂价人数 1 （暂行）

借款功能目前开放，债务上限 2000 万 bitCNY

注：
按目前外盘价0.123算，内盘抵押率最低的债仓的抵押率为 161% ，黑天鹅价为 0.076 （该数据会根据债仓数据变化而变化）

另附 in.abit 目前喂价算法如下：
* 每小时最多更新 12 次喂价，时间随机；如果价格变动低于0.1%则不更新
* 主数据源为 币安、火币，同时AEX、bittrex 和内盘有少量权重
* 黑天鹅保护开启
* 最低喂价 0.12

喂价相关风险提示（请市场参与者充分了解）：
* 由于人民币交易对权重较低，主要通过BTC和USDT折算得出最终喂价，而BTC和USDT价格取自外部交易所，可能导致结果存在偏差
* 可能因为技术原因，导致喂价更新不及时，甚至中断一段时间

105
General Discussion / 2020-11-16 Old bitCNY price feed producer list update
« on: November 16, 2020, 10:04:01 am »
The price feed producer list of old bitCNY has been updated as follows because quite some price feed producers were not feeding a price.

1.2.376     liondani
1.2.4952    abc123
1.2.14035   xn-delegate
1.2.35248   in.abit
1.2.420186  clone
1.2.551261  delegate-zhaomu
1.2.709204  ioex
1.2.862994  gdex-witness
1.2.987999  zapata42-witness
1.2.1031601 btspp-witness

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