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README
LGPL-3.0

Hubble Network

API Reference Build Status

VNT Chain的公链——Hubble Network是下一代商业级智能价值传递的基础设施,致力于解决当前公链高能耗、低效率,难以支撑大规模商业应用的问题。它借鉴了以太坊架构,融合DPOS与BFT技术以获取更高的性能和安全性,服务于规模化商业应用,实现价值的无摩擦转移。基于VNT Chain的公有链,用户可建立和发布下一代分布式智能应用,如游戏、金融资产交易、知识产权交易、电子签约、社交等。

特点

  1. 采用Vortex双层共识设计,可迅速验证交易及产生区块,高效节约。
  2. Vortex具有快速终局性,避免分叉。
  3. Vortex可容错1/3的见证人节点。
  4. 采用基于WASM的智能合约执行引擎——WAVM,支持多开发语言,降低开发者门槛。
  5. WAVM指令精简,可提高交易执行效率。
  6. WAVM基于沙箱运行,内存方面具有良好的安全性。
  7. WAVM是平台无关的,可运行在各种架构的CPU平台上,且性能等同于原生应用,具有良好的可移植性。
  8. WAVM采用模块化设计,可以针对特定功能实现模块化库的开发,提高代码利用率。
  9. 采用基于libp2p的P2P网络对已存在节点更加偏好,可以有效抵御恶意新节点的洪泛攻击。
  10. P2P网络具有灵活简单特性,可从任意节点发起查找,且查找算法对数收敛,能快速定位内容。
  11. P2P子协议框架具有稳定拓展特性,可以在其上任意扩展子协议处理,而底层框架无需做任何改动。

从源码安装Gvnt

安装gvnt需要Go编译器(版本大于1.9)和C编译器。

首先,克隆仓库go-vnt到路径$GOPATH/src/github.com/vntchain,并进入项目目录:

mkdir -p $GOPATH/src/github.com/vntchain
cd $GOPATH/src/github.com/vntchain
git clone https://github.com/vntchain/go-vnt
cd go-vnt

如果有以前的版本,请更新到最新:

git pull

然后,使用下面命令编译gvnt:

make gvnt

或者使用下面命令编译gvnt和所有工具:

make all

经过以上可以在$GOPATH/src/github.com/vntchain/go-vnt/build/bin/目录调用gvnt,为方便使用可以将gvnt安装到$GOPATH/bin:

go install -v ./cmd/gvnt

查看当前使用的gvnt版本号

gvnt version

运行Gvnt

当前VNT的公链主网和测试网络都已经启动,资料参考:如何加入测试网, 如何加入主网

你可以在本地搭建一个小型测试网,资料请参考:如何搭建VNT网络

资源

  1. VNT Chain官网
  2. VNT Chain开发者文档
  3. VNT Chain白皮书

贡献源码

欢迎PR,感谢您为go-vnt做的任何一点改进。您可以fork项目到个人仓库后、修复问题进行提交,然后向go-vnt仓库发起PR。

贡献代码请遵循以下规则,方便go-vnt核心开发人员对代码进行Review。

  1. 所有代码经gofmt进行格式化。
  2. PR请遵循以下规则:
    1. 标题格式:[fixed/style/test] #Issue PR标题fixed/style/test代表了修复/调整格式/修改测试,#Issue为本PR相关的Issue编号,PR标题为一句简洁话,描述本次PR的目的。
    2. PR内容:描述本次PR具体的内容,希望能尽可能详细,这样能让Review本PR的开发人员了解你的意图。

许可证

所有go-vnt仓库生成的二进制程序都采用GNU General Public License v3.0许可证, 具体请查看COPYING

GNU LESSER GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. This version of the GNU Lesser General Public License incorporates the terms and conditions of version 3 of the GNU General Public License, supplemented by the additional permissions listed below. 0. Additional Definitions. As used herein, "this License" refers to version 3 of the GNU Lesser General Public License, and the "GNU GPL" refers to version 3 of the GNU General Public License. "The Library" refers to a covered work governed by this License, other than an Application or a Combined Work as defined below. An "Application" is any work that makes use of an interface provided by the Library, but which is not otherwise based on the Library. Defining a subclass of a class defined by the Library is deemed a mode of using an interface provided by the Library. A "Combined Work" is a work produced by combining or linking an Application with the Library. The particular version of the Library with which the Combined Work was made is also called the "Linked Version". The "Minimal Corresponding Source" for a Combined Work means the Corresponding Source for the Combined Work, excluding any source code for portions of the Combined Work that, considered in isolation, are based on the Application, and not on the Linked Version. The "Corresponding Application Code" for a Combined Work means the object code and/or source code for the Application, including any data and utility programs needed for reproducing the Combined Work from the Application, but excluding the System Libraries of the Combined Work. 1. Exception to Section 3 of the GNU GPL. You may convey a covered work under sections 3 and 4 of this License without being bound by section 3 of the GNU GPL. 2. Conveying Modified Versions. If you modify a copy of the Library, and, in your modifications, a facility refers to a function or data to be supplied by an Application that uses the facility (other than as an argument passed when the facility is invoked), then you may convey a copy of the modified version: a) under this License, provided that you make a good faith effort to ensure that, in the event an Application does not supply the function or data, the facility still operates, and performs whatever part of its purpose remains meaningful, or b) under the GNU GPL, with none of the additional permissions of this License applicable to that copy. 3. Object Code Incorporating Material from Library Header Files. The object code form of an Application may incorporate material from a header file that is part of the Library. You may convey such object code under terms of your choice, provided that, if the incorporated material is not limited to numerical parameters, data structure layouts and accessors, or small macros, inline functions and templates (ten or fewer lines in length), you do both of the following: a) Give prominent notice with each copy of the object code that the Library is used in it and that the Library and its use are covered by this License. b) Accompany the object code with a copy of the GNU GPL and this license document. 4. Combined Works. You may convey a Combined Work under terms of your choice that, taken together, effectively do not restrict modification of the portions of the Library contained in the Combined Work and reverse engineering for debugging such modifications, if you also do each of the following: a) Give prominent notice with each copy of the Combined Work that the Library is used in it and that the Library and its use are covered by this License. b) Accompany the Combined Work with a copy of the GNU GPL and this license document. c) For a Combined Work that displays copyright notices during execution, include the copyright notice for the Library among these notices, as well as a reference directing the user to the copies of the GNU GPL and this license document. d) Do one of the following: 0) Convey the Minimal Corresponding Source under the terms of this License, and the Corresponding Application Code in a form suitable for, and under terms that permit, the user to recombine or relink the Application with a modified version of the Linked Version to produce a modified Combined Work, in the manner specified by section 6 of the GNU GPL for conveying Corresponding Source. 1) Use a suitable shared library mechanism for linking with the Library. A suitable mechanism is one that (a) uses at run time a copy of the Library already present on the user's computer system, and (b) will operate properly with a modified version of the Library that is interface-compatible with the Linked Version. e) Provide Installation Information, but only if you would otherwise be required to provide such information under section 6 of the GNU GPL, and only to the extent that such information is necessary to install and execute a modified version of the Combined Work produced by recombining or relinking the Application with a modified version of the Linked Version. (If you use option 4d0, the Installation Information must accompany the Minimal Corresponding Source and Corresponding Application Code. If you use option 4d1, you must provide the Installation Information in the manner specified by section 6 of the GNU GPL for conveying Corresponding Source.) 5. Combined Libraries. You may place library facilities that are a work based on the Library side by side in a single library together with other library facilities that are not Applications and are not covered by this License, and convey such a combined library under terms of your choice, if you do both of the following: a) Accompany the combined library with a copy of the same work based on the Library, uncombined with any other library facilities, conveyed under the terms of this License. b) Give prominent notice with the combined library that part of it is a work based on the Library, and explaining where to find the accompanying uncombined form of the same work. 6. Revised Versions of the GNU Lesser General Public License. The Free Software Foundation may publish revised and/or new versions of the GNU Lesser General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Library as you received it specifies that a certain numbered version of the GNU Lesser General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that published version or of any later version published by the Free Software Foundation. If the Library as you received it does not specify a version number of the GNU Lesser General Public License, you may choose any version of the GNU Lesser General Public License ever published by the Free Software Foundation. If the Library as you received it specifies that a proxy can decide whether future versions of the GNU Lesser General Public License shall apply, that proxy's public statement of acceptance of any version is permanent authorization for you to choose that version for the Library.

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