Qitmeer Network 周报（2020/7/20-2020/7/26）

[Meer (admin001——听风)]

Qitmeer Network 周报

新闻动态

• 2020年7月22日，Qitmeer 社区联合 HOTBIT 交易所、HOTBIT Global 社区进行了线上AMA活动，引起了国际社区的热烈响应。

• 受COVID-19疫情和战乱影响，物质无法直接运达，尼日利亚人民的生存正遭受严重威胁。为了响应联合国难民署的号召，Qitmeer Network Foundation受尼日利亚索科托天课局授权，将通过数字资产实现对索科托地区灾民的人道捐助，并以此探索 Qitmeer Charitable Defi 平台，将区块链技术应用于慈善事业。目前正在紧急筹备中。

社区治理动态

• 在隐藏在qitmeer-0.9.x中的BUG被修复后，Qitmeer团队通过与交易所、矿池等社区用户进行协调沟通，确立了针对历史无效交易的后续解决方案，并新建了 Qitmeer/0.9.1-invalid-utxo 项目，以详细说明整个问题的细节，同时为用户解决无效交易相关问题提供技术支持与服务。

• Qitmeer 加密经济学研究小组正在研究 George Samman & David Freuden 关于DAO的最新研究论文《 DAO:A Decentralized Governance Layer for the Internet of Value》，以探索Qitmeer DAO 的发展方向。

项目技术进展

底层核心代码更新

• 临时增加可获取原始交易数据的RPC：GetRawTransactionV2，以便于获取无效交易；

  代码实现: https://github.com/Qitmeer/qitmeer/pull/339/commits/ed1c1c0d1a5e64f8c765fa26a7cd1a90cea5ad4c

• 修复了账本生成工具 payledger 中关于UTXO获取的BUG；

  代码实现：
  https://github.com/Qitmeer/qitmeer/pull/339/commits/ed1c1c0d1a5e64f8c765fa26a7cd1a90cea5ad4c

• 新增无效交易（invalid tx）缓存功能，以替换临时RPC：GetRawTransactionV2，通过建立所有交易的索引数据库来获取无效交易；

  代码实现： https://github.com/Qitmeer/qitmeer/pull/339/commits/8a4d18a3baacff4c5b00cb3931c3c0686d7f3654

• 修复了账本生成工具 payledger 中关于blockinfo获取的BUG；

  代码实现： https://github.com/Qitmeer/qitmeer/pull/339/commits/c40d1359bfb6c97a80008c10bda8c56e8ba433e4

• 优化账本生成工具payledger，以提高其工作效率；

  代码实现： https://github.com/Qitmeer/qitmeer/pull/339/commits/8bf586cd5a26a4afeeb09e4663722d6aa4919362

• 优化了区块验证状态显示功能：BlockStatus.

  代码实现： https://github.com/Qitmeer/qitmeer/pull/339/commits/5b4c59afa097f0b310fc529eb6ead95eaf029d6b

• 优化了区块奖励支出总额计算功能；

  代码实现： https://github.com/Qitmeer/qitmeer/pull/339/commits/ed21abb0d62a06acb6ed7d4958a3b60db0ff6c01

• 修复了有关交易费用获取的BUG。

  代码实现： https://github.com/Qitmeer/qitmeer/pull/339/commits/798505aab405f7cdeb36350dc7d5e82c9da8d399

• 优化了无效交易缓存配置。

  代码实现： https://github.com/Qitmeer/qitmeer/pull/339/commits/21116906d6b5714076c1f35ba747434085a047de

基础产品及开发工具更新

• 对Qitmeer 浏览器在交易及区块有效状态的显示上做了优化，使其功能更全面且更友好用户。

---

Qitmeer Network Development Report

News

• On July 22, 2020, the Qitmeer community, in conjunction with the HOTBIT Exchange and the HOTBIT Global community, conducted an online AMA, which elicited an overwhelming response from the international community.

• Due to the COVID-19 epidemic and the war, the survival of the Nigerian people is under serious threat due to the lack of direct access to supplies.In response to the UNHCR’s call, Qitmeer Network Foundation has been authorized by the Nigeria Zakat Bureau of Sokoto, to use digital assets to realize humanitarian assistance to the affected people in Sokoto. And in doing so, it will explore the Qitmeer Charitable Defi platform to apply blockchain technology to charity. Urgent preparations are under way.

Community Governance

• After the bug hidden in qitmeer-0.9.x was fixed, the Qitmeer team established a follow-up solution for historical invalid transactions by coordinating and communicating with the exchange, mining pools and other community users, and created a new Qitmeer/0.9.1-invalid-utxo project to explain the entire issue in detail, as well as provide technical support and services for users to resolve invalid transaction related issues.

• The Qitmeer Cryptonomics Research Group is studying George Samman & David Freuden’s latest research paper on DAO, “DAO: A Decentralized Governance Layer for the Internet of Value”. to explore the direction of Qitmeer DAO.

Project Development Progress

Core Code Update

• Temporarily add RPC: getrawtransactionv2, which can obtain raw transaction data, so as to obtain invalid tx.

  code: https://github.com/Qitmeer/qitmeer/pull/339/commits/ed1c1c0d1a5e64f8c765fa26a7cd1a90cea5ad4c

• Fixed bug about utxo fetching in payledger.

  code: https://github.com/Qitmeer/qitmeer/pull/339/commits/ed1c1c0d1a5e64f8c765fa26a7cd1a90cea5ad4c

• Added new feature of invalid tx caching to replace the temporary RPC: GetRawTransactionV2, allowing to fetche invalid tx from an index DB of all transactions.

  code: https://github.com/Qitmeer/qitmeer/pull/339/commits/8a4d18a3baacff4c5b00cb3931c3c0686d7f3654

• Fixed bug about blockinfo fetching in payledger.

  code: https://github.com/Qitmeer/qitmeer/pull/339/commits/c40d1359bfb6c97a80008c10bda8c56e8ba433e4

• Optimized the payledger tool to increase its efficiency.

  code: https://github.com/Qitmeer/qitmeer/pull/339/commits/8bf586cd5a26a4afeeb09e4663722d6aa4919362

• Optimized the representation function of block validation state : BlockStatus.

  code: https://github.com/Qitmeer/qitmeer/pull/339/commits/5b4c59afa097f0b310fc529eb6ead95eaf029d6b

• Optimized the function of calculating total subsidy.

  code: https://github.com/Qitmeer/qitmeer/pull/339/commits/ed21abb0d62a06acb6ed7d4958a3b60db0ff6c01

• Fixed BUG about getting fees.

  code: https://github.com/Qitmeer/qitmeer/pull/339/commits/798505aab405f7cdeb36350dc7d5e82c9da8d399

• Optimized invalid tx caching config.

  code: https://github.com/Qitmeer/qitmeer/pull/339/commits/21116906d6b5714076c1f35ba747434085a047de

Basic Products and Development Tools

• The Qitmeer Explorer has been optimized for displaying transactions and block validation status to make it more comprehensive and user-friendly.

  website: https://explorer.qitmeer.io/ or https://meerscan.io/

---

Qitmeer Common Links

• Qitmeer GitHub: https://github.com/Qitmeer/

• Qitmeer Homepage: https://qitmeer.io/

• Qitmeer Explorer: https://explorer.qitmeer.io/

• Qitmeer docs: https://qitmeer.github.io/docs/en/

• Qitmeer wallet: https://www.kahf.io/