可验证随机函数 Verifiable Random Function(VRF)

在 substrate 的 BABE 中为了使出块不可预测,减少去中心化程度,使用了 VRF.

简单描述一下 BABE (POS)的出块流程

VRF 和伪随机函数功能类似,通过任意一个输入,可以获得一个随机数输出:

VRF 定义为

input 为合法输入,sk 是用户的私钥,output 是输出的随机数,proof 可以证明输出的数据合法.

VRF具体流程

一点的英语短语

我们决不能因为受到一点挫折就停止前进的步伐。下面就由我为大家带来关于一点的英语短语集锦，希望大家能有所收获。

关于一点的相关短语

一点 a bit of

一点 a bit

一点 a little

一点 to a less degree

一点 a touch of

一点 a little of

一点 at the very least

一点 not a halfpenny the worse

一点不错 all right ; Exactly ;

有一点 a bit ;

冷静一点 cool it ; Calm down ;

一点一滴 bit by bit ; Little by Little ;

轻松一点 Take it easy

关于一点的相关单词

whit

damn

ghost

point(s)

suspicion

bit

关于一点的相关短句

in a way rather like **.[sth.];

有一点像

perform some kind of service for the people;

给人民做一点事情

**all token of one's appreciation;

一点心意

acquire some knowledge about economics;

学一点经济

There is not a speck of dust.

一点灰尘也没有。

Man must have some spirit.

人是要有一点精神的。

关于一点的相关例句

1. Somehow he tells these stories without a note of horror.

不知为什么他讲这些故事时一点都不害怕。

2. Things might have been different if I'd talked a bit more.

如果当时我再多说一点的话，结果或许会不一样。

3. It is crucial that all documents presented are authentic and easily verifiable.

所有提交的文件必须真实且易于查证，这一点很关键。

4. Father had no more than a superficial knowledge of music.

父亲对音乐只懂一点皮毛。

5. She lifted the last of her drink to her lips.

她将最后一点饮料送到唇边。

6. "Please understand this," she began, a tremble in her voice.

“请理解这一点，”她开始说道，声音有些发颤。

7. They are selling their house to move to a **aller one.

他们正打算卖掉房子，然后搬到一个小一点的住处。

8. She made a fanning motion, pretending to cool herself off.

她做了个扇风的动作，假装想让自己凉快一点。

9. It seems clear that he has no reasonable alternative.

他没有其他合适的选择，这一点似乎很清楚。

10. To the side of the large star is a **aller star.

大星星旁边是一颗小一点的星星。

11. Outside, Bruce glanced at his watch: "Dear me, nearly oneo'clock."

出了门，布鲁斯瞥了一眼自己的手表，“天哪，快一点了。”

12. I may have made a mistake in that regard.

我在那一点上可能已经犯了一个错误。

13. Whatever its obscurities, the poem was clear on at least one count.

这首诗再怎么晦涩，至少有一点是清楚的。

14. To use a well-worn cliche, it is packed with information.

说得老套一点，其内容翔实。

15. One thing I am sure of was that she was scared.

有一点我能肯定，那就是她当时被吓到了。

关于一点的双语例句

只知道一点点，不如完全不晓得。

You might as well not know a thing at all as know it only a little.

这一点对我的论据极为重要。

This point is vital to my argument.

忏悔之后他觉得好过一点，并且能安眠了。

After confession he feels a little better and can sleep at ease.

我们离完成定额还差一点点。

We are still a little shy of our quota.

我懂一点儿德语。

I know a little German.

在伦敦英镑对美元仍坚挺，但在纽约却跌了一点儿。

The pound stayed firm against dollar in London but fell a little in New York.

从一点移到或转到另一点。

Go or proceed from one point to another.

声音藉由分子的震动从某一点传到另一点。

Sound is conveyed from one point to another by the motion of molecules.

女孩子通常需要少一点。运动的人们需要多一点的。

Girls usually need a bit less and people who play sports may need more.

VC为哪两个英文单词的首字母缩略词，正式中文翻译为什么？

abbr.维多利亚十字勋章(=Victoria Cross)

abbr.风险资本(=venture capital)

VC的常用相关缩略词条，共有 5 条。

VC : Viet Cong

中文全称:越共

词条简介:无

VC : Victor Charlie (military phonetic reference to Viet Cong)

中文全称:维克多·查理(军事语音参照越共)

词条简介:无

VC : Venture Capital(ist)

中文全称:风险资本(ist)

词条简介:无

vc : vocal cord

中文全称:声带

词条简介:无

vc : volume control

中文全称:音量控制

词条简介:无

VC的其他相关缩略词条，共有 15 条。

VC:Variable Cost 变动费用

vc:vital capacity 肺活量

VC:Victoria Cross 维多利亚十字勋章

VC:Virtual Circuit 虚电路

VC:Voice Coil 话音线圈

VC:Virtual Community 实质上的群体

VC:Virtual Connection 虚连接

VC:Veterinary Committee 兽医委员会

VC:Virtual Call 虚呼叫

vc:visual capacity 视力

VC:Venture Capital 风险投资

VC:Vince Carter 文斯卡特

VC:Vicious Circle 恶性循环

VC:Virtual Classroom 虚拟教室

VC:visual c++ 微软开发的集成化C++开发环境

Acronym

Definition

VC Viet Cong

VC Victor Charlie (military phonetic reference to Viet Cong)

VC Venture Capital(ist)

VC Virtual Console (Nintendo WII)

VC Victoria Cross

VC Virtual Circuit

VC Visual C++ (Microsoft)

VC Virtual Connection

VC Vince Carter (basketball player)

VC Video Conference

VC Victoria College (Alexandria, Egypt)

VC Video Camera

VC Video Card

VC Virtual Channel

VC Videoconferencing

VC Video Compression

VC Visitor Center (National Park Service)

VC Virtual Concatenation

VC Virtual Container (SDH)

VC Visual Communication(s)

VC Video Channel

VC Vicinity (aviation, meteorology)

VC Virtual Call

VC Vinyl Chloride

VC Vital Capacity

VC Virtual Classroom

VC Violoncello (Cello in Music Scores)

VC Virtual Community

VC Voluntary Controlled (UK school status)

VC Voice Coil

VC VoiceCon

VC Video Control

VC VisiCalc

VC Visual Cortex

VC Voltage Converter

VC Villa Clara (postcode, Cuba)

VC Voice Channel

VC Virtual Component

VC Virtual Corporation

VC Violent Conduct (soccer)

VC Voice Circuit

VC Virtual Cop (arcade games)

Vc Design Cruising Speed

VC Volume-to-Capacity ratio

VC Vienna Conference

VC Voluntary Closing

VC Vintage Cellars (various locations)

VC Viscous Criterion (sports medicine)

VC Vacant Code

VC Verification Certification

VC Viticulture Consortium

VC Volks Computer

VC Verbal Cue

VC Vortex Combustor

VC Virginia Central Railway

VC Variable Combo (gaming)

VC Knots Calibrated Airspeed

VC Colored Vision

VC Vocabulary Cartoons

VC Voice Compressor

Vc Cruising Velocity

VC VIP Carrier (military aircraft designation)

VC Verifiable Choice

VC Vector Correlator

VC Vaporizer Concentrate

VC Navy Cargo/Replenishment Squadron

VC St. Vincent and the Grenadines (ISO country code)

VC Vector Count

VC Vice Chief

VC Fleet Composite Squadron (US Navy)

VC Vertical Cutter

VC Vertically Challenged (PC term for short) :-)

VC Very Cute

VC Veterinary Corps

VC Vice Commodore

VC Vice-Chancellor

VC Vice-Consul

VC Vercelli (Piemonte, Italy)

VC Value City (department store)

VC Vegas Casino

VC Vena Cava

VC VanCleef (gaming, World of Warcraft)

VC Bureau of Verification and Compliance (US State Department)

VC Valley Culture (Aboriginal community group, Australia)

VC Verification Component

VC Vassar College (Boston, Massachusetts)

VC Vedic City (Iowa)

VC Vicious Circle

VC Ventura County (California)

VC Variable Contract

VC Varsity College (Gold Coast, Australia)

VC Variable Contrast (photographic imaging materials)

VC Vancouver College

VC Veterinary Committee

VC Vertical Curve

VC Very Cool

VC Vagabond Crew (band)

VC Navy Composite Squadron (US Navy aviation unit designation used from 1920s to 1950s)

VC Ventilating Contractor

VC Vanilla Coke

VC Vector Calculus

VC Vibration Compensation (Tamron)

VC Vehicle Control

VC Vatican City

VC Variable Cost

VC Ventura College (Ventura, CA)

VC Vector Coding

VC Vancouver Canucks (hockey)

VC Vice Chair

VC Van Cleef (The Deadmines, World of Warcraft Dungeon)

VC Vanessa Carlton (singer)

VC Valor Communications

VC Vanier College

VC Vereinigung Cockpit (German pilot union)

VC Via Campesina (International Peasant Movement)

VC Vice City (Grand Theft Auto game series)

verifiable 和 verified的区别

verifiable

英   美 ['vɛrə,faɪəbl]

adj. 可证实的；能作证的；可检验的

verified

英 ['verɪfaɪd]   美 ['vɛrə,faɪd]

adj. 已查清的，已证实的