2006 比特币比特币合约60秒

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2022-04-23 02:50:20

㈠什么是比特币期货合约

比特币期货合约，通常是以比特币价格指数为标的的标准化合约。

比特币交易所提供的比特币期货通常是以比特币进行交易的。期货是与现货相对的，现货是实实在在可以一手交钱一手交货的商品，而期货其实不是“货”，是承诺未来一个时间交“货”（标的）的约定（合约）—期货合约。

标的：又叫基础资产（underlying asset），解释了买卖什么东西的问题。目前比特币期货标的都是比特币价格指数，并且结算和交割价格的产生方法都以这个指数为基础。

手续费：与股票交易需缴纳印花税、佣金、过户费及其他费用不同，期货交易的费用只有手续费。比特币期货交易手续费有开仓收费和平仓收费两种，即在建立仓位时收取（如OKCoin）和在平仓时收取（如796）。比特币期货手续费一般是合约总价值的0.03%。

保证金：保证金跟另一个概念息息相关—杠杆，一般以杠杆比例来反映收益和风险水平。如796新推的50倍杠杆（即2%保证金），它意味着投资者投入1个比特币就可以购买50个比特币的期货合约（即50倍杠杆）；

或者从另一个角度看，投资者投入的1个比特币相当于购买到的50个比特币的2%（即2%保证金比例）。

通过50倍杠杆，期货相对于现货的收益被放大了50倍，比如同时购买1个币的现货和用1个币买多50个币的期货，假定现货和期货价格都上涨100%，那么现货赚了1个币，而期货则赚了50个币。

(1)2006比特币合约视频扩展阅读

期货合约是买方同意在一段指定时间之后按特定价格接收某种资产，卖方同意在一段指定时间之后按特定价格交付某种资产的协议。双方同意将来交易时使用的价格称为期货价格。

双方将来必须进行交易的指定日期称为结算日或交割日。双方同意交换的资产称为“标的”。如果投资者通过买入期货合约（即同意在将来日期买入）在市场上取得一个头寸，称多头头寸或在期货上做多。

相反，如果投资者取得的头寸是卖出期货合约（即承担将来卖出的合约责任），称空头头寸或在期货上做空。

㈡比特币合约交易是什么

1、合约的定义
期货合约是买方同意在一段指定时间之后按特定价格接收某种资产，卖方同意在一段指定时间之后按特定价格交付某种资产的协议。
双方同意将来交易时使用的价格称为期货价格。双方将来必须进行交易的指定日期称为结算日或交割日。双方同意交换的资产称为“标的”。
如果投资者通过买入期货合约（即同意在将来日期买入）在市场上取得一个头寸，称多头头寸或在期货上做多。相反，如果投资者取得的头寸是卖出期货合约（即承担将来卖出的合约责任），称空头头寸或在期货上做空。

2、合约的由来
期货合约是指由期货交易所统一制定的、规定在将来某一特定的时间和地点交割一定数量和质量商品的标准化合约。它是期货交易的对象，期货交易参与者正是通过在期货交易所买卖期货合约，转移价格风险，获取风险收益。
期货合约是在现货合同和现货远期合约的基础上发展起来的，但它们最本质的区别在于期货合约条款的标准化。在期货市场交易的期货合约，其标的物的数量、质量等级和交割等级及替代品升贴水标准、交割地点、交割月份等条款都是标准化的，使期货合约具有普遍性特征。
期货合约中，只有期货价格是唯一变量，在交易所以公开竞价方式产生。

3、合约的分类
数字货币合约可分为：交割合约和永续合约。
（1）交割合约：期货交割是指期货合约到期时，交易双方通过该期货合约所载商品所有权的转移，了结到期未平仓合约的过程。
（2）永续合约：是一种近似杠杆现货交易的衍生品，是以BTC、USDT等币种进行结算的数字货币合约产品。投资者可以通过买入做多来获取数字货币价格上涨的收益，或通过卖出做空来获取数字货币价格下跌的收益。
永续合约与传统期货存在一定差异：它没有到期时间，因而对于持仓时间没有任何限制。为了保证跟踪标的价格指数，永续合约通过资金费用的机制来保证其价格紧跟标的资产的价格。

㈢比特币合约是什么意思

比特币合约，是指无需实际拥有比特币也可进行交易的合约。它与必须实际持有数字货币才可进行的币币交易有很大不同。

比特币合约使你能够预测比特币的价格走势和对冲风险。这种交易方式，意味着你投资的是价格趋势，而非资产本身。

在交易比特币合约时，你可以决定做空还是做多。选择做多，表明你预计比特币价格将会上涨。另一方面，选择做空表明你预计价格将会下跌。

杠杆交易

可以选择高杠杆率进行交易，是比特币合约的一项特性。使用杠杆, 意味着你在进行合约交易时,不必投入100％的交易金额。相反，你只需要存入初始保证金，而保证金额度仅占合约总价值的一小部分。

杠杆交易让你在风险管理的同时，用少量的资金占有较大敞口。

永续合约

虽然合约有许多不同类型，本文主要关注永续合约。顾名思义，这些合约没有到期日。使用永续合约做多或做空的交易者，可以无限期持有头寸，除非合约爆仓，这意味着他们遭受的亏损不会超过初始保证金。

永续合约中，比特币的定价以特定的指数价格为基础。指数价格基于多个币币交易市场上比特币的平均价格。

比特币合约已成为一种非常流行的交易工具。许多传统投资者尚未准备将资金分配到数字资产上，但仍希望从诱人的价格波动中受益，而合约交易为他们打开了大门。

如要开启比特币合约交易，需要找到提供合约交易的交易所。 AAX平台，在合规和安全的环境中，为你提供比特币合约交易服务。

㈣比特币合约交易后正负含手续费吗

人们宣传比特币的时候常常会讲：“可以向各种张三李四免费转账。”其实不一定，有时还是需要手续费的。

2013年，一个比特币的价格为20美元。2017年，转一个比特币要花20美元。
手续费的目的一来为激励矿工不辍挖矿，二来以维护比特币网络安全（维稳费？）。早期矿工的挖矿底薪比较高，每个区块50枚BTC，但是创世块之后每出21万个块（每四年），底薪减半。所有2100万枚比特币都被挖出后，由交易费充当挖矿奖励。

关于减半算法的代码，长这样。

CAmount GetBlockSubsidy(int nHeight, const Consensus::Params& consensusParams)
{
int halvings = nHeight / consensusParams.nSubsidyHalvingInterval;
// Force block reward to zero when right shift is undefined.
if (halvings >= 64)
return 0;

CAmount nSubsidy = 50 * COIN;
// Subsidy is cut in half every 210,000 blocks which will occur approximately every 4 years.
nSubsidy >>= halvings;
return nSubsidy;
}
奖励金在2012年当时候从50比特币减半为25比特币，2016年从25比特币减半为12.5b比特币。大概2020年就会再减半为6.25比特币。

那么，怎么确定什么时候需要掏交易费、掏多少合适？

比特币网络规则内置交易费用结构，取决于系统推荐的（标准）客户端。我们拿比特币核心（bitcoin core）打个比方，看看转帐时，需要过哪几道：

1.花哪些币？

客户端首先确定用哪些币来完成支付。

好比， Bob给Alice转了2枚比特币；Rose又给Alice转了3枚比特币，那么两次转账金额会单独地趴在Alice的钱包中，直到被花出去。（注意：两笔转账不会“自动合并”为5BTC）。

那么，经过一阵子，钱包中会积累不同金额的比特币，所以才说，得考虑下用哪些做支付。

可用金额叫做交易的“输入”，最终发送金额（包括退回到钱包的找零）称为“输出”。

2.避免过于零碎的支付

若交易“输出”（包括找零）小于0.01BTC，则收取0.0001BTC的手续费。 “选币”时，算法会尽量避开那些找零金额低于0.01BTC的币。

3.老币、大额交易优先

若发送的比特币金额过小，或币龄过低，则很有可能被收取费用。每笔交易都有优先级，由“输入”的年龄、金额和交易输入数量决定。

具体而言就是，客户端将每一笔输入的金额与该输入在区块中存在的时间相乘，将所有乘法结果相加再除以交易字节大小。

若结果小于0.576，则收取交易费。所以，有一堆零碎且/或很新的“输入”，又不想掏手续费可以这么干，交易里加上一个大额且较老的输入即可。这里边，比较关键的就是这个金额x年龄的平均值。

如果在第3步中某交易本来是收费的，但随着时间流逝，又有新的区块不断产生，那么原先交易中“输入”年龄也随之增长，进一步提升了交易的优先级，因此第3步中产生的费用可能会被免除。

4.“称重”收费（按每千字节收费）

最后，客户端检查交易的字节长度。长度取决于输入和输出的数量，大致可用下列公式计算：

148 * 输入数量 + 34 * 输出数量 + 10

若长度小于10000字节且在第3步中有足够高的优先级，那么这笔交易最终被确认为免费，反之需收费，费用默认为0.0001BTC/千字节（不足1k的按1k计算）。可自行在客户端相关设置中更改交易费数额。低于0.0001BTC的设置不会生效。新费用设置生效后，将覆盖步骤2中的费用，两者不叠加。

接着说几个例子：

1. 过犹不及

说：Alice钱包中趴着两笔“输入”，金额分别为1BTC和2BTC。然后Alice想买杯2.99999BTC的咖啡。这时就不存在选币这一说了，因为有且只有两笔输入，都用上才够咖啡钱，剩下0.00001BTC找零。注意，步骤2提到：若交易“输出”（包括找零）小于0.01BTC，则收取0.0001BTC的手续费。说明，咖啡交易将被征收0.0001BTC的手续费。结果就是交易会失败，因为Alice手里的余额不足。

这就有意思了：Alice手上有3BTC，但是没法买2.99999BTC的咖啡。Alice可以把3BTC全部付给商家以避免手续费（假设第3步的费用为0），但有些商家可能会要求支付准确的金额。

2. 人品爆发

说：Alice人品大爆发，在某赔率64000的赌博游戏中，用0.02BTC拨来1280BTC。网站支付奖金时，自己钱包里并没有可丁可卯的1280BTC，于是只能用各种零碎输入（含找零）来各种凑。

最后，这笔凑出来的奖金大小是51203字节。是这样，交易大小超过10000字节，费用增至0.0005BTC/每千字节（其实早期的交易费用就是0.0005，后来变成0.0001的），那么，这里的手续费就是52*0.0005 = 0.026BTC。比玩家的本儿还高。

当然，还是比PayPal转便宜。

注：使用Paypal手续费为 4.4% + 0.3 USD/每笔。

好比，1280刀转账，1280*4.4% + 0.3 = 56.62 刀

注意：最后缴纳的手续费是0.0286BTC，有可能是因为没有使用（推荐）标准客户端来创建交易，然后这个客户端在计算费用时有点小问题。

这是个真事儿，见：Bitcoin Transaction

3. 机关算尽，不掏钱

有种交易踏在免费的悬崖边上，大小为9999字节，堪称交易费躲闪之王。全部输入中只有一个是1聪（satoshi，即比特币最小单位，0.000 000 01 BTC = 1 satoshi，以致敬比特币创始人Satoshi Nakamoto）；但是有另一个大额输入拉高了优先级，免除交易费用。

必须支付手续费吗？

捎带脚说一句，手续费其实不是强制的。有些矿工并没有很在意这些收费标准，也会把一些没有手续费的交易记录到区块中。使用标准客户端的“原始交易”（raw transactions）界面能创建手续费低于标准费用的交易，而且，还是有可能人品爆发的被矿工打包入块的。

㈤什么是比特币合约

类似期货合约，是由bitstar提出的一种交易方式。
比特币虚拟合约的杠杆表现为法币收益层面的杠杆稳定：投入100美元，所能得到的收益=100美元*比特币的涨跌幅*固定的杠杆倍数。
假设当前价格为500usd/btc，某投资者以当前价格买入一个btc，本金为500usd,此时投资者可以做多50张btc虚拟合约。此时若btc价格上涨至750美元，涨幅50%，投资者合约收益为3.3333个btc，按照当前价格卖出后可以获得2500美元，收益为其本金投入的5倍。若价格上涨至1000美元，合约收益为5btc，卖出后的美元收入为5000美元，为其美元收入的10倍。无论价格怎么波动，合约的杠杆都十分稳定，从而方便商家用合约进行套保，也便于普通投资者管理其仓位。

㈥比特币合约怎么玩

正常的合约交易所是，假设你账户中的保证金是10万元，你开了5倍杠杆，买入了看多的比特币合约，这时候，你的保证金会被放大5倍，收益和风险也同时扩大了5倍。
如果比特币上涨10%，那么你就赚了10万*10%*5=5万元。
如果比特币下跌了10%，你就亏损了5万元，等到比特币下跌20%，那么你的保证金就全部亏损，也就是你爆仓了。
至于怎么赚钱
这个就要看你的运气，以及自身的交易经验和交易技术了。

㈦比特币合约玩法规则

交易时间
合约交易是7*24小时交易，只有在每周五16:00(UTC+8)结算或交割期间会中断交易。合约在交割前最后10分钟，只能平仓，不能开仓。
交易类型
交易类型分为两类，开仓和平仓。开仓和平仓，又分买入和卖出两个方向：
买入开多(看涨)是指当用户对指数看多、看涨时，新买入一定数量的某种合约。进行“买入开多”操作，撮合成功后将增加多头仓位。
卖出平多(多单平仓)是指用户对未来指数行情不再看涨而补回的卖出合约，与当前持有的买入合约对冲抵消退出市场。进行“卖出平多”操作，撮合成功后将减少多头仓位。
卖出开空(看跌)是指当用户对指数看空、看跌时，新卖出一定数量的某种合约。进行“卖出开空”操作，撮合成功后将增加空头仓位。
买入平空(空单平仓)是指用户对未来指数行情不再看跌而补回的买入合约，与当前持有的卖出合约对冲抵消退出市场。进行“买入平空”操作，撮合成功后将减少空头仓位。
下单方式
限价委托：用户需要自己指定下单的价格和数量。开仓和平仓都可以使用限价委托。
对手价下单：用户如果选择对手价下单，则用户只能输入下单数量，不能再输入下单价格。
系统会在接收到此委托的一瞬间，读取当前最新的对手价格(如用户买入，则对手价为卖1价格;若为卖出，则对手价为买1价格)，下达一个此对手价的限价委托。
仓位
用户开仓成交后，即拥有了仓位，同种合约同一方向上的仓位会合并。在一个合约账户中，最多只能有6个仓位，即当周合约多仓、当周合约空仓、次周合约多仓、次周合约空仓、季度合约多仓、季度合约空仓。
下单限制
平台对单个用户某个周期合约的持仓数量、单笔开仓/平仓的下单数量会做出限制，防止用户操纵市场。
比特币合约玩法是什么?通过以上介绍，相信大家对于比特币合约玩法有所了解，比特币合约单纯来讲并不复杂，比特币合约的主要作用有两个，一是对冲未来的风险，也就是常听到的套期保值。另一个是比特币合约因为有杠杆的作用，所以可以以小博大，放大收益，当然若是投资者判断失误，也会放大损失。
一、什么是合约交易？
合约交易其实非常简单，就是双向交易，可以买涨（做多）也可以买跌（做空），随买随卖，上一分钟买进，下一分钟单子盈利都可以平仓，只要方向对了都可以盈利的，合约交易机制比较灵活，也是当前数字货币投资中的趋势。
二、什么又是永续合约，和普通交割合约的区别在哪里？
永续合约是一种创新型金融衍生品，该合约与传统的期货合约相似，最大的区别在于：永续合约没有到期日或结算日，用户可以无限期持有仓位。
另外，永续合约引入了现货价格指数的概念，并通过相应机制，使永续合约的价格回归现货指数价格，因此与传统期货不同，永续合约的价格在绝大部分时间不会偏离现货价格太多。
试想一种实物商品的期货合约，比如黄金。在传统期货市场中，这些合约标记着黄金的交割日期。即是说，黄金应在期货合约到期时进行交割。由于传统期货市场中，要求一方实际持有黄金，这会导致期货合约的“持有成本”。
永续合约跟交割合约本质是一样的，不同的是交割合约有交割日，到了交割日不管你的单子是盈利还是亏损，都会被强制卖出，永续合约本质上是可以一直持有，您想什么时候卖出都行，没有交割日。
三、操作永续合约的优势在哪？
永续合约不受限于时间，没有交割日。交易者可长期持有，以获得更大的投资收益。同时永续合约提供高达100倍杠杆，交易者可以根据交易需求，开仓后灵活调节，平台提供弹性风险保障的同时，确保交易者最佳交易体验。
自动减仓机制确保交易者利益，用来确定谁承担强制平仓，有效确保交易者的利益免受由高风险投机者所造成的巨额损失影响。并且采用双套价格机制，用标记价格作为强平的触发价格，标记价格实时参考全球主流交易平台的现货价格。
永续合约可以做到只用币的市场价值的1%的资金参与交易，这是囤币做不到的，占用资金极小。也就是说按BTC10000美元左右的价格，在永续合约上面100美元左右就可以交易一个BTC了。操作合约最重要的就是买卖的方向和点位，最为重要，在正规交易所永续合约平台操作可以享受到每天一对一指导操作，帮助把握市场最大行情，规避反向操作的风险。

㈧怎么玩比特币合约

直接在比特币交易平台上就能够完成合约，加上杠杆就是合约了。但是交易平台一定要选好，像火币、加币站等这些都比较合适的，主要是平台主推就是比特币合约，这样一来，很多时候平台做活动都是关于合约用户的，然后如果你在上面的话，就能享受到相对应的福利。

㈨比特币合约怎么交易

类似期货合约，是由BitStar提出的一种交易方式。
比特币虚拟合约的杠杆表现为法币收益层面的杠杆稳定：投入100美元，所能得到的收益=100美元*比特币的涨跌幅*固定的杠杆倍数。
假设当前价格为500USD/BTC，某投资者以当前价格买入一个BTC，本金为500USD,此时投资者可以做多50张BTC虚拟合约。此时若BTC价格上涨至750美元，涨幅50%，投资者合约收益为3.3333个BTC，按照当前价格卖出后可以获得2500美元，收益为其本金投入的5倍。若价格上涨至1000美元，合约收益为5BTC，卖出后的美元收入为5000美元，为其美元收入的10倍。无论价格怎么波动，合约的杠杆都十分稳定，从而方便商家用合约进行套保，也便于普通投资者管理其仓位。

㈩比特币合约交易什么意思

合约交易是对比特币莱特币期货合约交易的统称。
2013年6月，796交易所在比特币业内率先开发出了比特币周交割标准期货—T+0双向交易虚拟商品作押易货合约（合约交易）。
合约交易的出现结束了此前比特币不能做空的历史，开启了比特币衍生品市场发展繁荣的序幕。

温馨提示：以上信息仅供参考，不代表任何建议。

应答时间：2020-12-16，最新业务变化请以平安银行官网公布为准。
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㈠ What is a Bitcoin futures contract?

Bitcoin futures contracts are usually standardized contracts based on the Bitcoin price index.

Bitcoin futures offered by Bitcoin exchanges are usually traded in Bitcoin. Futures are opposite to spot goods. Spot goods are real commodities that can be paid and delivered in one hand. Futures are not actually "goods". They are an agreement (contract) that promises to deliver "goods" (subject matter) at a time in the future - a futures contract. .

Object: Also called underlying asset, it explains the question of what to buy and sell. Currently, the underlying targets of Bitcoin futures are the Bitcoin price index, and the settlement and delivery price generation methods are based on this index.

Handling fees: Unlike stock transactions that require stamp duties, commissions, transfer fees and other fees, futures trading only charges handling fees. Bitcoin futures trading fees include opening fees and closing fees, which are charged when a position is established (such as OKCoin) and charged when a position is closed (such as 796). Bitcoin futures handling fees are generally 0.03% of the total contract value.

Margin: Margin is closely related to another concept - leverage, which generally reflects the level of return and risk in terms of leverage ratio. For example, 796’s newly launched 50 times leverage (i.e. 2% margin) means that investors can purchase 50 Bitcoin futures contracts (i.e. 50 times leverage) by investing 1 Bitcoin;

or From another perspective, 1 Bitcoin invested by an investor is equivalent to 2% of the 50 Bitcoins purchased (i.e. 2% margin ratio).

Through 50 times leverage, the income of futures relative to spot is magnified 50 times. For example, if you buy 1 coin of spot and use 1 coin to buy 50 coins of futures at the same time, assuming that the spot and futures prices If both prices rise by 100%, then the spot price will earn 1 coin, while the futures price will earn 50 coins.

(1) 2006 Bitcoin Contract Video Extended Reading

A futures contract is an agreement in which the buyer agrees to receive an asset at a specific price after a specified period of time, and the seller agrees to deliver an asset at a specified price after a specified period of time. The price that both parties agree to use for future transactions is called the futures price.

The specified date on which both parties must conduct transactions in the future is called the settlement date or delivery date. The asset that both parties agree to exchange is called the “subject.” When an investor takes a position in the market by purchasing a futures contract (i.e. agreeing to buy at a future date), it is called a long position or going long on futures.

On the contrary, if the position taken by the investor is to sell a futures contract (that is, to bear the contract responsibility to sell in the future), it is called a short position or shorting on futures.

㈡ What is Bitcoin contract trading

1. Definition of contract
A futures contract is an agreement that the buyer agrees to make over a specified period of time.An agreement in which a seller agrees to deliver an asset at a specified price after a specified period of time.
The price that both parties agree to use for future transactions is called the futures price. The specified date on which both parties must enter into a transaction in the future is called the settlement date or delivery date. The asset that both parties agree to exchange is called the “subject.”
If an investor takes a position in the market by purchasing a futures contract (i.e. agreeing to buy at a future date), it is called a long position or going long on futures. On the contrary, if the position taken by the investor is to sell a futures contract (that is, to bear the contractual responsibility to sell in the future), it is called a short position or going short on futures.

2. The origin of the contract
Futures contracts refer to standardized contracts formulated by futures exchanges that stipulate the delivery of a certain quantity and quality of commodities at a specific time and place in the future. It is the object of futures trading. Futures trading participants transfer price risks and obtain risk returns by buying and selling futures contracts on futures exchanges.
Futures contracts are developed on the basis of spot contracts and spot forward contracts, but their most essential difference lies in the standardization of futures contract terms. For futures contracts traded in the futures market, terms such as the quantity, quality grade and delivery grade of the subject matter, as well as premium and discount standards for substitutes, delivery location, delivery month and other terms are all standardized, making futures contracts universal.
In futures contracts, only the futures price is the only variable, which is generated through open bidding on the exchange.

3. Classification of Contracts
Digital currency contracts can be divided into: delivery contracts and perpetual contracts.
(1) Delivery contract: Futures delivery refers to the process in which the parties to the transaction settle the expired open positions through the transfer of ownership of the commodities contained in the futures contract when the futures contract expires.
(2) Perpetual contract: It is a derivative similar to leveraged spot trading. It is a digital currency contract product settled in BTC, USDT and other currencies. Investors can gain profits from rising digital currency prices by buying long, or gain profits from falling digital currency prices by selling short.
Perpetual contracts are somewhat different from traditional futures: they have no expiration time, so there is no limit on the holding time. In order to ensure tracking of the underlying price index, the perpetual contract uses a funding fee mechanism to ensure that its price closely follows the price of the underlying asset.

㈢What does Bitcoin contract mean?

Bitcoin contract refers to a contract that can be traded without actually owning Bitcoin. It is very different from currency-to-crypto trading, which requires physical possession of the digital currency to proceed.

Bitcoin contracts enable you to predict Bitcoin price movements and hedge risks. This type of trading means that you are investing in price trends rather than the asset itself.

When trading Bitcoin contracts, you can decide to go short or long. Choosing to go long indicates that you expect the price of Bitcoin to rise.On the other hand, choosing to go short indicates that you expect the price to fall.

Leverage trading

The ability to trade with high leverage is a feature of Bitcoin contracts. Using leverage means that you do not have to invest 100% of the transaction amount when trading a contract. Instead, you only need to deposit an initial margin, which is only a small percentage of the total contract value.

Leverage trading allows you to use a small amount of capital to occupy a larger exposure while managing risk.

Perpetual Contracts

Although there are many different types of contracts, this article focuses on perpetual contracts. As the name suggests, these contracts have no expiration date. Traders who use perpetual contracts to go long or short can hold their positions indefinitely unless the contract is liquidated, which means they will not suffer losses exceeding their initial margin.

In perpetual contracts, Bitcoin is priced based on a specific index price. The index price is based on the average price of Bitcoin on multiple cryptocurrency exchange markets.

Bitcoin contracts have become a very popular trading tool. Many traditional investors are not yet ready to allocate funds to digital assets but still want to benefit from attractive price movements, and contract trading opens the door for them.

If you want to start Bitcoin contract trading, you need to find an exchange that provides contract trading. The AAX platform provides you with Bitcoin contract trading services in a compliant and secure environment.

㈣ Does the positive and negative transaction fee for Bitcoin contracts include handling fees?

When people promote Bitcoin, they often say: "You can transfer money to various people for free." In fact, this is not necessarily the case. Sometimes a handling fee is required.

In 2013, the price of one Bitcoin was $20. In 2017, it cost $20 to transfer one Bitcoin.
The purpose of the handling fee is firstly to encourage miners to keep mining, and secondly to maintain the security of the Bitcoin network (stability maintenance fee?). The basic mining salary for early miners was relatively high, 50 BTC per block, but after the genesis block, every 210,000 blocks (every four years), the basic salary was halved. After all 21 million Bitcoins are mined, transaction fees serve as mining rewards.

The code for the halving algorithm looks like this.

CAmount GetBlockSubsidy(int nHeight, const Consensus::Params& consensusParams)
{
int halvings = nHeight / consensusParams.nSubsidyHalvingInterval;
// Force block reward to zero when right shift is undefined.
if (halvings >= 64)
return 0;

CAmount nSubsidy = 50 * COIN;
// Subsidy is cut in half every 210,000 blocks which will occur approximately every 4 years.
nSubsidy >>= halvings;
return nSubsidy;
}
The reward was halved from 50 Bitcoins to 25 Bitcoins in 2012, and in 2016 Halving from 25 Bitcoin to 12.5b Bitcoin. It will probably be halved again in 2020 to 6.25 Bitcoins.

So, how to determine when to pay transaction fees and how much to pay?

The transaction fee structure is built into the Bitcoin network rules and depends on the (standard) client recommended by the system. Let’s use Bitcoin Core as an analogy to see what steps are required when transferring money:

1. Which coins should be spent?

The client first determines which coins to use to complete the payment.

For example, Bob transfers 2 Bitcoins to Alice; Rose transfers 3 Bitcoins to Alice, then the amounts of the two transfers will be kept in Alice's wallet separately until they are spent. . (Note: The two transfers will not be "automatically combined" into 5BTC).

So, after a while, different amounts of Bitcoin will accumulate in the wallet, so I say, you have to consider which ones to use for payment.

The available amount is called the "input" of the transaction, and the final amount sent (including the change returned to the wallet) is called the "output".

2. Avoid too fragmentary payments

If the transaction “output” (including change) is less than 0.01BTC, a handling fee of 0.0001BTC will be charged. When "selecting coins", the algorithm will try to avoid coins whose change amount is less than 0.01 BTC.

3. Old coins and large-amount transactions are given priority

If the amount of Bitcoin sent is too small, or the currency age is too low, fees are likely to be charged. Each transaction has a priority, determined by the age of the "input", the amount, and the number of transaction inputs.

Specifically, the client multiplies the amount of each input by the time the input exists in the block, adds all the multiplication results and divides them by the transaction byte size.

If the result is less than 0.576, collecttransaction fee. Therefore, if you have a bunch of fragmented and/or very new "inputs" and don't want to pay handling fees, you can just add a large and older input to the transaction. Here, the more critical thing is the average amount x age.

If a transaction in step 3 was originally charged, but as time goes by, new blocks continue to be generated, then the "input" age in the original transaction will also increase, and further The transaction's priority is increased so fees incurred in step 3 may be waived.

4. "Weighing" charges (charged per kilobyte)

Finally, the client checks the byte length of the transaction. The length depends on the number of inputs and outputs, and can be roughly calculated by the following formula:

148 * number of inputs + 34 * number of outputs + 10

If the length is less than 10,000 bytes and in If there is a high enough priority in step 3, then the transaction will eventually be confirmed as free, otherwise it will be charged. The default fee is 0.0001BTC/kilobyte (less than 1k will be calculated as 1k). You can change the transaction fee amount by yourself in the relevant settings of the client. Settings below 0.0001BTC will not take effect. After the new fee setting takes effect, it will overwrite the fee in step 2, and the two will not overlap.

Let’s talk about a few examples:

1. Too much is not enough

Say: There are two “inputs” in Alice’s wallet, each with an amount of 1 BTC. and 2BTC. Then Alice wants to buy a cup of coffee for 2.99999 BTC. At this time, there is no such thing as currency selection, because there are only two inputs, and both are used to get enough coffee money, leaving 0.00001 BTC as change. Note that step 2 mentions: If the transaction "output" (including change) is less than 0.01BTC, a handling fee of 0.0001BTC will be charged. Note that coffee transactions will be charged a handling fee of 0.0001 BTC. The result is that the transaction will fail because Alice does not have enough balance.

This is interesting: Alice has 3 BTC, but she cannot buy 2.99999 BTC of coffee. Alice can pay all 3 BTC to the merchant to avoid the handling fee (assuming the fee in step 3 is 0), but some merchants may require the exact amount to be paid.

2. Character explosion

Say: Alice’s character exploded. In a gambling game with odds of 64,000, she allocated 1,280 BTC with 0.02 BTC. When the website paid the bonus, I did not have the 1,280 BTC in my wallet, so I could only use various bits and pieces (including change) to make up for it.

In the end, the size of the bonus was 51203 bytes. Yes, if the transaction size exceeds 10,000 bytes, the fee will be charged.The usage increased to 0.0005 BTC/per kilobyte (in fact, the early transaction fee was 0.0005, and later became 0.0001), then the handling fee here is 52*0.0005 = 0.026 BTC. Higher than the player's book.

Of course, it is still cheaper than PayPal.

Note: The handling fee for using Paypal is 4.4% + 0.3 USD/per transaction.

For example, for a transfer of 1,280 knives, 1,280*4.4% + 0.3 = 56.62 knives

Note: The final handling fee paid is 0.0286 BTC, which may be because it was not used (recommended ) standard client to create transactions, and then this client has a little problem calculating fees.

This is a real thing, see: Bitcoin Transaction

3. Don’t pay until all the mechanisms are exhausted

There is a kind of transaction that is free On the edge of the cliff, with a size of 9999 bytes, it is the king of transaction fee dodges. Only one of all inputs is 1 satoshi (satoshi, the smallest unit of Bitcoin, 0.000 000 01 BTC = 1 satoshi, in tribute to Satoshi Nakamoto, the founder of Bitcoin); but there is another large input that raises the priority and exempts the transaction cost.

Do I have to pay a handling fee?

As a side note, the handling fee is actually not mandatory. Some miners do not pay much attention to these charging standards and will record some transactions without fees into blocks. Using the "raw transactions" interface of the standard client can create transactions with lower fees than the standard fee, and it is still possible to be included in the block by miners due to bad character.

㈤ What is a Bitcoin contract?

Similar to a futures contract, it is a trading method proposed by bitstar.
The leverage of the Bitcoin virtual contract is the stability of the leverage at the level of legal currency income: if you invest $100, the income you can get = $100 * the rise and fall of Bitcoin * fixed leverage multiple.
Suppose the current price is 500 usd/btc, and an investor buys a btc at the current price with a principal of 500 usd. At this time, the investor can go long 50 btc virtual contracts. At this time, if the price of Bitcoin rises to US$750, an increase of 50%, the investor's contract income will be 3.3333 Bitcoins. After selling at the current price, he can get US$2,500, and the income will be 5 times of his principal investment. If the price rises to US$1,000, the contract income will be 5btc, and the US dollar income after selling will be US$5,000, which is 10 times its US dollar income. No matter how the price fluctuates, the leverage of the contractThe poles are very stable, making it easier for merchants to use contracts for hedging and for ordinary investors to manage their positions.

㈥How to play Bitcoin contracts

The normal contract exchange is, assuming the margin in your account is 100,000 yuan, you open 5 times leverage, buy to see long Bitcoin contract, at this time, your margin will be enlarged 5 times, and the income and risk will also be increased 5 times.
If Bitcoin rises by 10%, then you will earn 100,000*10%*5=50,000 yuan.
If Bitcoin falls by 10%, you will lose 50,000 yuan. When Bitcoin falls by 20%, then all your margin will be lost, which means you will be liquidated.
As for how to make money
This depends on your luck, as well as your own trading experience and trading skills.

㈦ Bitcoin Contract Game Rules

Trading Time
Contract trading is 7*24 hours trading, and can only be settled or delivered at 16:00 (UTC+8) every Friday Transactions will be interrupted during this period. In the last 10 minutes before delivery of a contract, positions can only be closed but not opened.
Transaction Types
Transaction types are divided into two categories, opening and closing positions. Opening and closing positions are divided into two directions: buying and selling:
Buying long (bullish) means that when the user is bullish or bullish on the index, he or she will buy a certain number of new contracts. Carry out the "buy and open long" operation, and the long position will be increased after successful matching.
Selling to close long positions (long orders closing) refers to the selling contracts that users cover when they are no longer bullish on the future index market, and offset with the currently held buying contracts to offset the exit from the market. Perform the "sell to close long" operation, and the long position will be reduced after successful matching.
Selling short (bearish) means that when the user is bearish or bearish on the index, he or she will newly sell a certain number of certain contracts. Carry out the "sell and open short" operation, and the short position will be increased after the matching is successful.
Buy closing (short closing) refers to the buying contract that the user is no longer bearish about in the future index market and covers it, which is offset by the currently held selling contract and exits the market. Carry out the "buy and close short" operation, and the short position will be reduced after the matching is successful.
Order Method
Limit Price Order: Users need to specify the price and quantity of the order. Limit orders can be used for both opening and closing positions.
Place an order at the counterparty price: If the user chooses to place an order at the counterparty price, the user can only enter the order quantity and cannot enter the order price.
The system will read the latest opponent price at the moment it receives this order (if the user buys, the opponent price is the sell 1 price; if the user sells, the opponent price is the buy 1 price), and places the order. A limit order at this price.
Positions
After the user opens a position and completes the transaction, he or she will have a position. Positions of the same type of contract in the same direction will be merged. In a contract account, there can only be a maximum of 6 positions, namely long position on the current week's contract, short position on the current week's contract, long position on the next week's contract, short position on the next week's contract, long position on the quarterly contract, and short position on the quarterly contract.
Order restrictions
Platform to orderLimits will be placed on the number of positions held by each user for a certain period of contract and the number of orders placed for a single opening/closing position to prevent users from manipulating the market.
What is the gameplay of Bitcoin contracts? Through the above introduction, I believe everyone has an understanding of the gameplay of Bitcoin contracts. Bitcoin contracts are not complicated in simple terms. There are two main functions of Bitcoin contracts. One is to hedge the future. Risk, also known as hedging. The other is that because Bitcoin contracts have leverage, they can use small gains to make big gains, and of course, if investors make mistakes in their judgment, losses will also be amplified.
1. What is contract transaction?
Contract trading is actually very simple. It is a two-way transaction. You can buy up (long) or down (short). You can sell as you buy. You can buy one minute and close the position if the order makes a profit the next minute. As long as It can be profitable if the direction is right, and the contract trading mechanism is relatively flexible, which is also the current trend in digital currency investment.
2. What is a perpetual contract, and what is the difference between it and an ordinary delivery contract?
Perpetual contracts are an innovative financial derivative that are similar to traditional futures contracts. The biggest difference is that perpetual contracts have no expiration date or settlement date, and users can hold positions indefinitely.
In addition, the perpetual contract introduces the concept of spot price index, and through the corresponding mechanism, the price of the perpetual contract returns to the spot index price. Therefore, unlike traditional futures, the price of the perpetual contract does not change most of the time. Too much deviation from the spot price.
Imagine a futures contract on a physical commodity, such as gold. In traditional futures markets, these contracts mark gold’s delivery date. That is, gold should be delivered when the futures contract expires. Since in the traditional futures market, one party is required to actually hold gold, this will result in a "carrying cost" for the futures contract.
Perpetual contracts are essentially the same as delivery contracts. The difference is that delivery contracts have a delivery date. On the delivery date, no matter whether your order is profitable or loss-making, you will be forced to sell. Perpetual contracts can essentially last forever. Yes, you can sell whenever you want, there is no delivery date.
3. What are the advantages of operating perpetual contracts?
Perpetual contracts are not limited by time and have no delivery date. Traders can hold it for a long time to obtain greater investment returns. At the same time, the perpetual contract provides up to 100 times leverage, and traders can flexibly adjust it after opening a position according to trading needs. The platform provides flexible risk protection while ensuring traders the best trading experience.
The automatic position reduction mechanism ensures the interests of traders and is used to determine who is responsible for forced liquidation, effectively ensuring that traders' interests are protected from huge losses caused by high-risk speculators. It adopts a dual price mechanism and uses the mark price as the trigger price for liquidation. The mark price refers to the spot price of the global mainstream trading platform in real time.
Perpetual contracts can only use 1% of the market value of the currency to participate in transactions. This is something that cannot be achieved by hoarding currency, and it takes up very little funds. In other words, based on the price of BTC of about US$10,000, one BT can be traded for about US$100 on the perpetual contract.C. The most important thing when operating a contract is the direction and point of buying and selling. The most important thing is that when operating on the perpetual contract platform of a regular exchange, you can enjoy one-on-one guidance every day to help grasp the biggest market trends and avoid the risk of reverse operations.

㈧ How to play Bitcoin contracts

You can complete the contract directly on the Bitcoin trading platform, and add leverage to form a contract. But the trading platform must be chosen well, such as Huobi and Canadian currency sites, etc., which are more suitable. The main reason is that the platform mainly promotes Bitcoin contracts. In this way, many platform activities are about contract users, and if you are on If you do the above, you can enjoy the corresponding benefits.

㈨ How to trade Bitcoin contracts

Similar to futures contracts, it is a trading method proposed by BitStar.
The leverage of the Bitcoin virtual contract is the stability of the leverage at the level of legal currency income: if you invest $100, the income you can get = $100 * the rise and fall of Bitcoin * fixed leverage multiple.
Suppose the current price is 500USD/BTC, and an investor buys a BTC at the current price with a principal of 500USD. At this time, the investor can go long 50 BTC virtual contracts. At this time, if the price of BTC rises to US$750, an increase of 50%, the investor's contract income will be 3.3333 BTC. After selling at the current price, he can get US$2,500, which is 5 times his principal investment. If the price rises to US$1,000, the contract income is 5 BTC, and the US dollar income after selling is US$5,000, which is 10 times its US dollar income. No matter how the price fluctuates, the leverage of the contract is very stable, making it convenient for merchants to use contracts for hedging and for ordinary investors to manage their positions.

㈩ What does Bitcoin contract trading mean?

Contract trading is the collective name for Bitcoin Litecoin futures contract trading.
In June 2013, 796 Exchange took the lead in the Bitcoin industry to develop the Bitcoin weekly delivery standard futures-T+0 two-way trading virtual commodity pledged barter contract (contract transaction).
The emergence of contract trading ended the previous history that Bitcoin could not be shorted, and opened the prelude to the development and prosperity of the Bitcoin derivatives market.

Warm reminder: The above information is for reference only and does not represent any advice.

Response time: 2020-12-16. For the latest business changes, please refer to the official website of Ping An Bank.
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