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常见问题

常见问题

为什么世界需要另一个货币?

Bitcoin was a great blessing, showing people a way to a truly decentralized and deflationary currency and blazing the path towards a future where our money and finances are neither controlled nor scrutinized by anyone. Hundreds of new coins appeared, some of them minor variations of Bitcoin, some offering new possibilities.
However, the fact that transactions on Bitcoin and many of its derivatives are not confidential (all transaction history is stored in a public ledger accessible to anyone), makes cryptocurrency use in real life quite problematic. Can anyone think of a business that would want all its income and expenses to be seen by its competitors?
Privacy coins (like Monero, Zcash and their derivatives) have great merits and technology while providing good confidentiality, but do not fully deliver on scalability and decentralization. Another important quality is auditability - with Monero or Zcash it is impossible to demonstrate a provable transaction graph to an external auditor, which is often needed for businesses.
The ideas behind Mimblewimble protocol allow for creation of a coin that is confidential, scalable and optionally auditable.
We believe that the Beam coin will serve as a truly usable confidential store of value, with an addition of second-layer solutions like Lightning to allow for day-to-day usage.

如果你支持MimbleWimble协议,为什么不加入Grin项目?
Yes, we believe in Mimblewimble!

We believe that rapid innovation is best achieved in a startup model, where people are 100% focused on the project and are working on it literally 24/7. Also, we feel that some of the technical decisions made by the Grin team are less practical and use more “cutting-edge” technology. Since we are literally building money, we chose a more conservative approach and decided to use more proven technologies instead - that’s why we chose C++ and not Rust, Equihash and not Cuckoo Cycle, etc. That said, we have immense respect for the Grin team and wish them success. We are all working towards the same goal - bringing financial privacy back to people and making cryptocurrency more usable in real-world applications.

Beam、ZCash和Monero三者差异是什么?
加密世界已经有多种隐私币,关于Beam和他们之间不同之处可参考文章 Here we go.
Beam和Grin之间有何不同?
Both Beam and Grin are implementing the Mimblewimble protocol, but in different ways. We summarize the differences in four different areas: Technology, Emission, Features, and Governance.

Technology Here’s a brief comparison of the technologies used by both projects:

  • Programming Language
    • Beam: C++
    • Grin: Rust
  • Mining Algorithm:
    • Beam: Modified Equihash
    • Grin: Cuckatoo32+, plus Cuckaroo29

Emission

Beam uses a capped emission model of about 263 million total coins (see “What’s Beam Emission Schedule”). Grin uses a constant emission of 1 grin per second (60 per 1-minute block).

Features

While both projects are adding functionality all the time, the known feature list planned for launch is as follows:

  • Desktop Wallet
    • Beam: GUI and CLI (Command-line interface) for Windows, OSX and Linux
    • Grin: CLI for Linux, OSX and Windows Web wallet interface
  • Mobile Wallet
  • Interactive Transactions (both wallets online)
    • Beam: Yes
    • Grin: Yes
  • Non-interactive transactions (wallets don’t have to be online at the same time)
    • Beam: Yes, transparently from the Wallet, using Secure BBS
    • Grin: Yes, using email or similar
  • Transaction Graph Obfuscation
  • Atomic Swaps
    • Beam: Bitcoin <> BEAM, Litecoin <> BEAM, Qtum <> BEAM
    • Grin: Ethereum <> Grin
  • Auditability
  • Confidential Assets
    • Beam: Available - possibility to issue additional tokens on Beam blockchain
    • Grin: Not yet

Governance

Beam runs as a classical startup. We raised money from investors and pay salaries. In the future, Beam plans to pass governance of the protocol to a Beam Foundation (see “What is Beam Foundation”). Grin is a 100% volunteer project fueled by community enthusiasm and occasional donations, supporting one paid developer. For the first two years, Grin will be governed by the core development team with input from the community.

Groth
GROTH是Beam在区块链上记录的最小单位,是一个Beam的一亿分之一,即0.00000001 BEAM。

这个单位为致敬UCL的加密学教授Jen Groth而以其命名(http://www0.cs.ucl.ac.uk/staff/j.groth/)。可通过阅读以下文章[here]来了解Groth教授如何成为了货币单位。(https://www.benthamsgaze.org/2019/05/22/efficient-cryptographic-arguments-and-proofs-or-how-i-became-a-fractional-monetary-unit/)

规范

Beam发行计划如何?
Beam代币总量固定,总量上限262,800,000。发行计划如下:
  • 第1年:区块奖励80枚/块;
  • 第2年到第5年:区块奖励40枚/块;
  • 第6年到第9年:区块奖励25枚/块;
  • 之后,每四年减半,直到第133年达到总量上限,区块奖励结束

Beam发行的前五年,基金会Treasury将获得代币收益:

  • 第1年:奖励收益20枚/块
  • 第2年到第5年:奖励收益10枚/块

可见,Beam发行计划与比特币较相似,主要区别是第一年区块奖励更高,目的是为了确保在早期矿工对Beam挖矿有兴趣,让市场更广泛的认知Beam.

有关Beam发行计划的更多详情可点击此处 here

为什么Beam选择通货紧缩?
代币发行数量有限以及去掉了受信任的控制人是加密货币的优势之一;比特币的成功证明了这种方法的可靠性。这也是Beam选择通缩货币政策deflationary的原因
什么是可审计性?
Auditability feature is an extension that we added to original Mimblewimble protocol, allowing businesses or private individuals to report their financial history to their auditors or any other party of their choosing in a secure and provable way. If the user chooses to use Auditability (btw, we may change this unwieldy name in the future), her wallet generates several key pairs for audit. Alternatively, a public key can be provided by an auditor (think of EY, Deloitte, KPMG or PWC) and added to the wallet by the user. Transaction details are encrypted with that key and attached to the original transaction (that remains private), along with a proof that those details match. The user can also include additional information (e.g. digital documents, signatures, etc.) in the metadata of each transaction by storing the hash of such documents in the blockchain. With Auditability, each transaction is tagged, such that only an Auditor may identify it in the blockchain using the public key. The auditor is not, however, able to create such a transaction, nor spend any money. The auditor can retrieve all the tagged transactions form the blockchain, make sure that the transactions comply with the presented documents. Auditability is strictly an opt-in feature. If the user hasn’t chosen to be auditable, there is no way anyone can retrieve any information about his transactions from the blockchain.

参与

我怎样才能拥有Beam呢?
Beam没有ICO。拥有Beam的最好办法是在我们主网上线后任何时候开始采矿,或者从交易所等处购买.
我可以怎样支持Beam?
Beam has a fast-growing Ambassador program based on locality. Our ambassadors promote Beam by organizing meetups, holding talks and conducting knowledge-sharing sessions. So if you are highly motivated, really good at conveying ideas and communicating with people, and excited by our implementation of Mimblewimble (or just crypto in general), we might need your help. Beyond the obvious reward of being first Beamer in your crypto community, we are happy to let you know there is compensation involved. Drop us an email to [email protected] with a brief bio and why you think you'd be a great fit to represent Beam in your area.
Beam做过空投么?
不。Beam没做过也不会做空投。任何向你兜售Beam空投机会的人都是骗子。我们永远不会请求你将你的Beam或其他任何数字货币发送给我们或者向你索要钱包地址

我们强烈呼吁广大社区谨慎,防止掉入任何诈骗陷阱

什么时候Beam成为百倍币?
我们不喜欢浮夸和不切实际的东西,所以我们并不会去想它。

技术

Beam每秒能支持多少交易?
Thanks to the Mimblewimble protocol, Beam supports around 17 transactions per second. While this number is higher than Bitcoin and other existing privacy coins, it is important to emphasize that it is not high enough to use Beam as a means of exchange. In the future, it will be possible to improve transaction throughput by using a second layer out-of-chain solution such as Lightning, Thunderella or similar. Then you should be able to pay for your lattes with beams. Until then, Beam’s primary use case is store of value rather than day-to-day payments.
区块时间和大小是多少?
Beam每个区块生成时间约一分钟,每个区块能包含大约1000笔交易。
Beam区块链全节点大小是多少?
Instead of storing the full transaction history as in Bitcoin and other coins, a Beam node only needs to store the current UTXO state, instead of the entire transaction history. Validity of the history that brought us to this state can be confirmed by storing only the headers of the previous blocks; which holds the proof of validity of previous states (using a structure called a Merkle tree) and Proof of Work that allows to reach consensus on which of the header chains should be considered the correct one in case of blockchain branching. This is achieved using cut-through, one of the core concepts in Mimblewimble. We are still experimenting and evaluating, but it is a reasonable estimate that the Beam blockchain will be less than 1/3 of Bitcoin’s blockchain size, possibly as low as 10% (assuming the same amount of activity). So, really small.

钱包

Beam支持在哪些平台上的钱包?
Beam现在具有以下操作系统上的钱包:Windows、Mac和Linux操作系统。之后,我们还会发布安卓端和iOS端的移动钱包。.
硬件钱包进展如何?
硬件钱包超级重要,是数字资产的终极保障。一个有价值存储的加密货币必须支持硬件钱包。 我们非常重视硬件钱包,已经在与几家硬件钱包提供商合作开发。

挖矿

为什么Beam使用Equihash算法?
We chose Equihash because it has been around for a long time and Equihash PoW mining algorithm is well adopted by miners globally. Equihash is based on solving the Generalized Birthday Problem. It is I/O bound, meaning that it requires quite a large amount of memory as opposed to Bitcoin's SHA256 that requires a lot of processing power. Equihash is built in such a way that does not allow an easy tradeoff between processing power and memory thus making it difficult to use with ASIC miners that existed at the time of its creation. Today there are dedicated ASIC miners that can mine Equihash ten times more efficiently than average CPU.

Beam used PoW algorithm Beam Hash I until its first Hard Fork that occurred on August 15th, 2019. Since then, Beam uses Beam Hash II. More details on Beam Hash II can be found here.

For more details, read this in-depth article about our Equihash implementation.

Last update: August 19th, 2019

ASIC抵抗性
为了确保更好的去中心化,Beam计划在前12-18个月内保持ASIC抵抗性。为了实现这一点,我们计划施行一次或两次硬分叉——第一次在大约6个月时施行,第二次在大约12个月时施行。每次硬分叉以调整挖矿算法来施行。调整细节将在每次硬分叉前几周公布

治理

Beam的治理模式如何?
The Core Team and Beam Development Ltd. do not have any intentions to govern Beam in the long run. There is no point to having a cryptocurrency governed in a centralized way by a corporation. Therefore, we offer our solution to our community. We are opening the code, welcoming Open Source Developers and setting up a non-profit foundation that will be unconditionally funded by the Treasury.
什么是Beam基金会?
Beam Foundation will be responsible for supporting, promoting and further developing Beam in the years to come. The foundation will be set up as a non-profit and will be governed by a Board of Directors comprising reputable industry figures. The foundation will be receiving a significant part of the Treasury, and will fund projects and initiatives in the areas of Applied and Basic research, Development of Beam and Mimblewimble, Awareness, Financial Literacy and more.
Beam团队情况如何?

Beam has put together a remarkable team of first-class engineers and entrepreneurs, and a strong advisory board comprised of accomplished cryptocurrency veterans. We have 8 full-time developers, a marketing team and seasoned management. Beam CEO is Alexander Zaidelson, an experienced entrepreneur, executive and VC investor, the engineering team is led by CTO Alex Romanov (over 15 years experience running complex R&D projects in numerous industries), the operations are run by COO Amir Aaronson, experienced entrepreneur and executive, and marketing is under the lead of CMO Beni Issembert, an entrepreneur with more than 15 years of experience in the Corporate and Performance marketing.
Our Product Management is done by Sasha Abramovich, a top-notch Product Owner with solid technical background, ex-Agora, AppsFlyer, Natural Intelligence and more. The list of advisors includes people like Guy Corem, Bryan Bishop, Gordon Chen, Rami Kasterstein, Ferdous Bhai, Liraz Siri and Addison Huegel. Check out our Team Page for details. We are actively building a global community of developers who share our mission of creating a private digital currency and will maintain and improve Beam.

Beam开发资金从哪里来? 什么是Beam财库?
We believe a startup environment is best for innovation, that's why we are raising money. Treasury model is the best way to repay our investors and to provide a reward to the founding team. Treasury works in the following way: in the first five years of Beam existence, 20% of all emitted coins automatically go to the Treasury. Technically, the additional coins are emitted for each mined block. Our investors, the core team, our advisors and the non-profit Beam Foundation will be getting Beam coins from the Treasury on a monthly basis. We believe that the five year payout period creates an alignment of interest between all the parties and ensures that our coin will get the support it requires to succeed.
High-res Beam logo