Block Option ( ) – децентрализованная сеть

Рейтинг лучших брокеров бинарных опционов 2021 года по надежности:
  • EvoTrade

    Бонусы для новых трейдеров до 20 000$!


    Огромный раздел по обучению. Бесплатные прогнозы и стратегии!

Как отобразить блок с помощью option?

Есть вот такой код:

Как сделать, допустим, так, чтобы при выборе появлялся только

1 ответ 1

Для определения изменения выбора в селекте используется функция change() , вот пример того, как можно сделать вашу логику.

Всё ещё ищете ответ? Посмотрите другие вопросы с метками javascript html jquery html-select или задайте свой вопрос.


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Block Option ( ) – децентрализованная сеть


Decentralized Binary Options Platform Powered By Ethereum Blockchain

Gary Luo, Asonganyi Derick

Draft by Gary July the 4th 2020, last updated: 30th, Nov, 2020

Table of contents


The Binary Options Industry is a multi-billion dollar market. Just in Israel, binary options broker companies made $5 billion profit in 2020 [1].

When you buy a binary option from centralized brokers, you actually bet against the platform. The broker makes money when you lose.

This means that the broker must make sure it wins more than it loses[2]

Traders are playing an unfair game as broker/platform can cheat on them by manipulating the price feed in their favor and block traders from withdrawing. So traders may win the trade but loss their money.

Рейтинг русскоязычных брокеров бинарных опционов:
  • EvoTrade

    Бонусы для новых трейдеров до 20 000$!


    Огромный раздел по обучению. Бесплатные прогнозы и стратегии! aim to build an independent and decentralized platform for the binary options industry.

  • Pure P2P market — Traders bet against Bankrollers,’token holders make profit from trading fees; not from profit share as traditional platforms.
  • Guaranteed Payout — Payments are issued by smart contract direct to traders ETH address. No one can block withdraws.
  • 100% Transparency and Provably Fair by getting assets price on blockchain. Therefor cheating by manipulating price feed is impossible .

We will show you how we build this 100% on-chain system, as we believe the foundations on ethereum blockchain are solid and can support a high user friendly Dapp.

1. Introduction is a decentralized Binary Options Platform based on Ethereum blockchain. We do not bet against traders but provide a larger catalog of assets marketplace by letting bankrollers create varied asset contracts by themselves on our platform, e.g. 70 seconds EUR/USD, 3 minutes BTC/USD, 8 hours GOLD, etc..

1.1 Binary Options Industry

Binary options «are based on a simple ‘yes’ or ‘no’ proposition: Will an underlying asset be above a certain price at a certain time? [3]

And binary options are often considered a form of gambling rather than investment because of their negative cumulative payout (the brokers have an edge over the investor) and because they require little or no knowledge of the market.

This sort of thing can quickly become addictive. no one, no matter how knowledgeable can consistently predict what a stock or commodity will do within a short time frame. [4]

One of the biggest binary options platform in the United States makes almost 1M profit per day. IG Group, One of the top company made $305.1 million of net trading revenue in 2020.[5].

Binary options seem to have more funds compare to dice game, and there is no leading blockchain binary options platform running right now. will have big potential as it is the no.1 blockchain binary options platform in the market.

1.2. Common Issues in Binary Options Industry

Some of the existing issues in the binary options market that can solve:

Funding problem into your account — In you are trading with your ether wallet, no need to wait for any broker to help credit your account.

Price data feed manipulating — just a small change can influence the result of a trade. By using no one can change the price data as it is being fetched by smart contract and stored in blockchain.

Delay or block withdraw — When a binary options broker delay or blocks you withdraw, you can’t do anything about it. By using you will be rewarded direct to your ETH address by smart contract automatically and immediately.

Not safe funds — On non-regulated platforms, the client’s money is not necessarily kept in a trusted account as required by government financial regulations. Again, transactions are not monitored by third parties in order to ensure fair play.»[6] By using, every transaction and bankroll funds are viewable on ethereum blockchain. Traders will get guaranteed payout if they win.

Not provably fair game — Traders bet against brokers/platform in traditional platforms, it can’t be provably fair even if it’s a regulated platform. Traders bet against bankrollers in and win rates and rewards rate are 100% transparent and unchangeable.

Company shut down or run away — Traders will lost all their money if broker company shuts down or is run away. It is the worst situation many traders face. By using all funds are safe even platform can’t access the funds since all funds are stored on ethereum blockchain.

Server or account hacked — In all your trades and funds are safer than traditional platform as it is ‘impossible’ to hack the ethereum blockchain.

1.3 The following table compares typical binaty options broker and platform.

Compares Typical Brokers
Transparency Very Little 100% Transparency
Manipulable Uncertain Can’t
Guaranteed Payout Uncertain Yes
Fund Safety Uncertain Yes
Provably Fair Uncertain Yes
Platform Safe Uncertain Yes

2. The Platform is the first decentralized binary options platform based on ethereum blockchain with BOP (a standard etheriun ERC20 token) used as an in-trade currency and profit dividend token. completely and permanently eradicate the inauspicious decease called ‘TRUST’ which is undoubtedly killing the binary options industry from inside out.

BOP — internal token — is used as dividend (100% of the profit generating by platform goes to token holders as dividend) and as second in-game currency.

We will release an MVP in July 2020 and publish further development plans according to the road-map after ICO.

Built 100% on blockchain, fetches asset price data from an oracle by using Orcalize service running on smart contract. We will use a build-in wallet to fetch start time price and pass it to smart contract, compare the start time price, expiry price and reward winning traders immediately by smart contract. No additional database and server-side needed. Not even the slightest window for cheating and scams. No delay payments and deny payments. Although we will simplify this in the MVP version, but it will be implemented eventually.

2.2.1 Platform

We aim to provide the best binary options platform in the market by providing a provably fair, guaranteed Payout, 100% transparency, highest reward rate and best user friendly system to traders, obtaining more daily trade volume to make more profit. Platform doesn’t make money from traders loss but from fees per trade (planning charge 0.005-0.01 ETH per trade, actual fee per trade will be published before public version release).

2.2.2 Quote provider MVP version: Uses as quote provider. “At CryptoCompare we pride ourselves in showing the most accurate live prices, charting and market analysis from 37 of the top crypto exchanges globally. Our content editors keep the mining data, be it company, mining equipment or mining contracts up to date with the latest pricing and products available on the market. ” [7] Later versions: Use xignite as quote provider. Xignite provides very high quality quotes to many different banks and platforms.

“Xignite, pronounced ex-ig-nite, stands for Igniting Exchanges. We have sparked a FinTech revolution, the first to coin that term way back in 2020, and today we are fueling the digital transformation of financial services.” [8] will provide more than 30+ Assets: BTC/USD BTC/CNY EUR/USD GBP/USD CAD/USD USD/JPY USD/CNY GOLD OIL Silver NASDAQ S&P500 etc..

2.2.3 Ethereum Blockchain’s token contract and trading contracts will be deployed on Ethereum blockchain. Trader and Bankroller’s funds are also stored on ethereum blockchain.

2.2.4 Oracle

In a nutshell, an oracle is something (or someone) that provides data to blockchain applications that these applications cannot (efficiently) access by themselves.

Oracles are necessary because it is inefficient and often impossible to reach a decentralized consensus on centralized data. [9]

2.2.5 Trade Smart Contract

Asset’s start time price, expiry price stored in smart contract and rewards also issued by smart contract on ethereum blockchain.

2.2.6 Traders

Traders send ETH or BOP directly to asset’s smart contract to trade, and get rewarded by smart contract automatically.

2.2.7 Bankrollers

Bankrollers send ETH or BOP to create an asset contract or back existintg contracts and make profit from bankrolling. Profits issued by smart contract.

2.2.8 Affiliates

Affiliates send new traders to’s Platform and get paid with ETH from affiliate smart contract.

Token for named BOP, BOP used to ‘dividend’ profits generated by and also used as a second in-trade currency.

2.3.1 Tokensales

20,000,000 Blockoptions Tokens[BOP] will be created as Ethereum ERC20 tokens and issued during the tokensale.

Blockoptions Tokens can be purchased with Ethereum only. All funds will be held in cold storage.

2.3.2 Token distributio

18 million will be available for sale to tokensale participants. None sold tokens will be burned.

1.5 million will be retained by Blockoptions for advisors, partners, hiring, future marketing and development with 2 years vesting, unlock 25% per 6 months.

0.5 million will be used for ICO bounties and dev. reward without vesting

Time Price
1st week 20% 1ETH : 250
2nd week 10% 1ETH : 220
3-4th week no discount 1ETH : 200

Pre-sale You can purchase tokens with a 50% discount (1ETH : 400) in our pre-sale.

The pre-sale has a cap of 2500 ETH. Email: if you would like to participate.

Tokensale Time

Phase Time
Pre-sale 1, Aug. 2020 — 8, Aug. 2020
Tokensale 25, Aug. 2020 — 25, Sep. 2020

Profit Distribution Platform doesn’t make money from traders loss but from fee per trade (planning charge 0.005-0.01 ETH per trade, actual fee per trade will be published before public version released), and 100% of the profit will be ‘dividented’ to token holders via token reward smart contract.

2.3.3 ICO Fund usage 80% of the funds raised will be used for futher development and marketing. The remaining funds will be used for legal and other costs.

Fund usage Percent
Dev. 40%
Marketing 40%
Legel and others 20%

2.3.4 As in-trade currency

BOP also a second in-trade currency besides ETH, it will add value to token and raise price by high market demand.

2.4.1 July — Aug.2020

Release MVP and Pre-ICO start.

2.4.2. Sep. 2020

Release build-in wallet version and add asset contract creation function for bankrollers.

Token dividend contract and affiliate contract completed.

2.4.3. Q4, 2020

Accept fiat money and btc/other crypto currencies to trade by using coinbase and service.

Build app to attract mobile traders, this will increase our user base up to at least 200%

Multiple language supported and expand more offices to more regions

Public released on Dec. 2020 and more marketing budget and PR, we aid to build the No.1 blockchain binary option brand.

3. How we achieve the 100% onchain platform

To achieve the 100% onchain platform, won’t need account registration, off-chain server side, additional database, man power to audit funding/trading/withdrawing, but will only reply on ethereum blockchain.

3.1 How the traditional binary options brokers works

The traditional binary options platform also known as the only brokers trade against traders. Traders register/login to system, funding with fiat money via credit card/PayPal/Wire transfer to broker’s account, get account credited after broker’s auditing. Trading and rewarding by broker’s server side, the price feed also provided by broker’s server side. And how much and when traders get their withdraw is also processed by brokers. It can’t be a provably fair game as brokers makes money while traders loss.

3.1.1 Traditional binary option sites using Bitcoin

Some sites claim to be blockchain binary options platforms, whereas they only provide trading and withdraw with bitcoin, such as, and other sites you can google them with phrase: ”blockchain bianry options”. Their trading are still running based on server site informations, and the withdraw part mostly need to be manually approved. They still belong to Traditional platforms category just using the fashionable bitcoin payment method.

There are so many problems with these types of companies and so many scams, so the binary options industry is in critical state where risk and trust problems are the oder of the day. many countries have banned it or limited it.[10]

So we are going to rebuild the binary option industry with blockchain technology following this steps in the list below:

3.2 First 100% on onchain binary options platform

3.2.1 Fetch data from reliable quote provider

We will use smart contract service to fetch price from quote provider’s API to insure that the price data is accurate and can not be changed.

Traders send ETH/OPT direct from 3rd wallet, e.g. MEW to trading smart contract, at the same time trading smart contract sending a transaction to Oraclize’s smart contract. After some blocks time, 30 seconds – 1 min. Oraclize’s smart contract bring back start price.

And we also schedule a callback in the transaction Oraclize’s smart

In 2 minutes + a few block time later, Oraclize callback trading smart contract with expiry price, traders get e.g. 175% of trading amount as reward by trading smart contract if win or 1 gwei if lost.

3.2.3 The UI of MVP:

The MVP will be release online for test before tokensale, test address will be online soon.

Although the MVP is a 100% onchain system, with auto reward, 100% transparent, can’t be manipulated, guaranteed payout and provably fair, but it have some weak points need to improve urgently.

  • The start price will be delayed in 1min.
  • Traders have to open ETH wallet to send ETH to smart contract, not very user friendly
  • Expiry time is not exactly e.g 2 Min. later time, the perdition is not traders wanted.

3.3 Build-in wallet version on public chain

So a build-in wallet version is needed. It will fix the start time delay, expiry time not accurate and can’t accept BTC to trade, etc problems.

Traders create an online wallet on or import their private key to as other online wallets like

Traders click invest button to start trading on Build-in wallet will fetch start price within the same second.

At the same time sending a schedule callback to Oraclize’s smart contract, e.g callback with exactly 2 min. later price using timestamp parameter for xignite API. This will get back the expiry price exact equal (start time + 2 minutes)’s price from ethereum blockchain.

In 2 minutes + a few block time later, Oraclize callback trading smart contract with expiry price, traders get e.g. 175% of trading amount as reward by trading smart contract if win or 1 gwei if lost.

The UI of build-in wallet version will be similar to this, with one click traders can start a trade on site, no need to open 3rd wallet.

This version fixes the start time delay and expiry time not accurate problem plus all advantages MVP had. But still have a shortage:

  • need to pay too many TX fee to ethereum blockchain miners (needs to pay 3 times TX fee for a trade, it will raise as price of ETH will rise in future and it is about $$1 per TX fee at the price of $300 per ETH).

3.4 Build a less TX fee platform

In this version we would like to achieve a less TX fee but still 100% onchain platform for binary options industry. We will bring in private chain + public chain structure.

  1. Traders create a new wallet or import private key to and traders confirm how many ETH they would like used to trade, will transfer the fund from public chain to private chain.
  2. Traders start trade as usual, the trading smart contract is executed in private chain, and the reward is stored in private chain too. When traders would like to end trades, will transfer the fund to public chain from private chain.

Although in the last version, the traders only need to pay one TX fee, but other TX fees still come from traders in the end. can provide the highest reward rate to traders only by reducing any costs as much as possible, in private chain + public chain version, we also can reduce the Oraclize service’s cost by bring in are own oracle service.

As only need to pay 2 TX fees to complete dozens or hundreds of trades, we will be the first batch of platforms that can achieve such minimum avg. TX fee per trade on the market.

One big plus for using private chain to process trading, we can get back results to traders near to real time as we can use 1-2 seconds block time in private chain, much faster than only use public chain.


The competition is very fierce in binary options industry, traditional binary option brokers pay more than $300 to affiliate to get a new traders. Although we believe we can and will build the best blockchain binary options platform on market, but we still need pay more attentions on marketing, PR, networking and helps from communities to achieve it.

Block Option ( ) – децентрализованная сеть

Взлом Биткоин адресов.
500 Биткоинов взломаны в «мозговом кошельке» с паролем «bitcoin is awesome»
Адрес кошелька: 14NWDXkQwcGN1Pd9fboL8npVynD5SfyJAE
Приватный ключ: 5J64pq77XjeacCezwmAr2V1s7snvvJkuAz8sENxw7xCkikceV6e

Всем кто хочет заработать Биткоины без вложений — рекомендую сайт

Для начала маркетинга и награждения активных участников нашего сообщества, мы оставляем за собой 250 000 Bopt маркер для баунти кампании ICO.

Я бы управление Signature, Twitter и Facebook кампании по имени blockoptions.


Общий маркер Bopt в питании = 20 м Bopt знак
Общий маркер выделено Баунти (1,25%) = 250K Bopt маркер

Цена маркера Bopt:
Предпродажная фаза: 1 ETH = 400 токены
Tokensale фаза: 1 ETH = 250 — 200 Лексемы

** Blockoptions оставляет за собой право вносить коррективы в баунти кампании в любое время.
** Blockoptions также реверс право дисквалифицировать любого человека, которого они нашли злонамеренный немедленно и эффективно.

Вы можете принять участие в нашей щедрости кампании вовлекаются по крайней мере одной из следующих разделов:

1. Минимум 10 сообщений в неделю (предпочтительно в altcoins секции)
2. Сообщения должны быть 75 символов минимум
3. Сообщения в любом сиг кампании или баунти потоки не будут учитываться
4. Вы не должны участвовать с более чем одной учетной записи.
5. Спам и неконструктивные сообщения не будут учитываться и может привести к запрету.
6. Удаление подписи во время кампании приведет к дисквалификации.
7. Пользователи с отрицательными рейтингами доверия не допускаются.
8. Еженедельно после подсчета до субботы 23:59

Младший член: 10 акций / неделю
Участник: 15 акций / неделю
Действительный член: 20 акций / неделю
Старший член: 25 акций / неделю
Член Hero: 35 акций / неделю
Легендарные: 50 акций / неделю

+ бонус : Дополнительные 5 акций / неделя, если вы носите нашу Аватар :

Чтобы принять участие, заполните эту форму после ношения подписи:

Перевод белой бумаги = 50 акций
Перевод веб-сайта = 50 акций
Перевод ЕТ нити = 100 акций
Управление сообщества на выбранном языке = 20 акций / неделю
Проверка любого перевода, представленный = 20% первоначального вознаграждения

1. По крайней мере член ранга
2. Не использовать любой трансляционной приспособление любая попытка сделать это приведет к немедленному и эффективному дисквалифицировать.
3. Вы должны быть одобрены blockoptions, прежде чем идти в любые поступательные проекты.
4. Blockoptions должен проверить и утвердить свою работу независимо друг от друга, прежде чем вы получите награду.

Зарезервировать вам трансляционное место ниже:

Уже зарезервированные языки:

Индонезийский: kaneki007
Турецкий: polat90


10 акций за неделю

>Мем = 5 акций / мем.
>Дополнительные 2 акции за 1к дополнительных последователей на минимум последователей 300.

1. Должен следовать официальной версии щебета blockoption по адресу
2. Должно быть, по крайней мере, 300 последователи в основном крипты и любители или бинарной торговли.
3. Должно быть, по крайней мере, 90% реальных последователей.
4. Должно ретвит по крайней мере 10 твитов в неделю.
5. Должен нравится и комментарии, по крайней мере, 10 твитов в неделю
6. Meme должен содержать ссылку на официальный сайт blockoptions, главный BCT нить и ссылку на слабину нити и должен быть разделен с @blockoptions_io
7. Сообщение ает на слабину канала мемы
8. Максимальная награда за неделю 30 акций
9. Еженедельный КПП Суббота 23:59
10. Размести ссылку на все ваши действия в этой теме каждый раз в неделю в субботу перед 23:59.

10 акций / неделю

>Meme = 5 акций / мем
>Дополнительные 2 акции на 100 дополнительных на минимальных последователям

1. Должен нравится официальная страница facebook blockoption по адресу
2. Необходимо иметь по крайней мере 10 раз в неделю
3. Как и комментарий по крайней мере 10 раз в неделю
4. Должно быть, по крайней мере, 300 друзья в основном крипты и любители или бинарной торговли.
5. Meme должен содержать ссылку на официальный сайт blockoptions, главный BCT нить и ВСТ Баунти нить.
6. Разместите ссылку на ает на слабину канала мемы
7. Максимальное вознаграждение за неделю 30 акций в неделю
8. Еженедельный КПП Суббота 23:59
9. Создать ссылку на все ваши действия в этой теме каждый раз в неделю в субботу до 23:59

Блог пост = 10 акций / пост
Сайт = 15 акций / пост
Статья в любом связанный blockchain форума = 15 акций / пост
Почта и следовать в любой ведущей blockchain или бинарных опционов форумов = 20 акций / пост
Видео = 25 акций / видео

1.Articles должны иметь по крайней мере 400 слов
2.Articles должны иметь ссылку на официальный сайт BCT, BCT нить и провисание счет.
3. Оценка младшего члена и выше.
4. Веб-сайт должен иметь по крайней мере 500 уникальных посетителей в месяц
5. Веб-сайт и блог должен быть крипто и или двоичный вариант торговли, связанные
6. Видео должно быть не менее 2 минут
7. Youtube канал должен иметь по крайней мере 1k последователей и видео должны иметь по крайней мере 500 представлений в пределах течение одной недели
8. Создать ссылку на все ваши действия на BCT баунтите поток.
9. дрянной содержание будут дисквалифицированы

Во-первых 1000 членов = 20 Лексемы / член
Оставшиеся 5K жетоны доля активных членов, как показано ниже:
Активный курс:
знак равно >80% 10 акций / неделю,
>60% 8 акций / неделю
>40% 5 акций / неделю

1. Строго один счет на человека
2. Оценка младшего члена и выше.

Награда: 12.5k
Наш MVP будет выпущен Эфириумом blockchain mainet, Первые торги по 1250 MVP наградят 10 Bopt / торговлю.

Количество QQ Группа: 450325068

Награда: 25K Bopt
Вознаграждение за первые 2000 членов QQ группы, 12,5 Bopt на одного члена.
Строго один счет на человека

Открыть счет и получить бонусные деньги:
  • EvoTrade

    Бонусы для новых трейдеров до 20 000$!


    Огромный раздел по обучению. Бесплатные прогнозы и стратегии!

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