Red light of ant A3 miner flashing
in the second case, when the green light flashes at the intersection of traffic lights, it is abnormal, that is, it is broken. At this time, you can pass according to the situation.
bitcoin is a virtual encrypted digital currency in the form of P2P. Point to point transmission means a decentralized payment system
unlike all currencies, bitcoin does not rely on specific currency institutions. It is generated by a large number of calculations based on specific algorithms. Bitcoin economy uses the distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses the design of cryptography to ensure the security of all aspects of currency circulation
the decentralized feature and algorithm of P2P can ensure that it is impossible to artificially control the value of bitcoin by mass manufacturing. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity
extended data:
bitcoin is the first distributed virtual currency. The whole network is composed of users and there is no central bank. Decentralization is the guarantee of bitcoin's security and freedom. Bitcoin can be managed on any computer connected to the Internet. No matter where you are, anyone can dig, buy, sell or collect bitcoin
bitcoin requires a private key to control bitcoin, which can be stored in any storage medium in isolation. No one can get it except the user himself. Bitcoin can be remitted free of charge, but in the end, a transaction fee of about 1 bitfen will be charged for each transaction to ensure faster execution of the transaction
As a means of payment from a to B, bitcoin has no cumbersome quota and proceres. If you know the other party's bitcoin address, you can pay. Users can explore the computing power of different hardware on many platforms$content = file_get_contents("http://api.btc38.com/v1/ticker.php?c=dog");
$obj = json_decode($content);
$array = object_to_array($obj);
echo $array['ticker']['buy'];
function object_to_array($obj){
$_arr = is_object($obj)? get_object_vars($obj) :$obj;
foreach ($_arr as $key => $val){
$val=(is_array($val)) || is_object($val) ? object_to_array($val) :$val;
$arr[$key] = $val;
}
return $arr;
}
?>
centralized delivery means that after the end of the last trading day, all open positions will be delivered within the specified period; Rolling delivery starts from the first trading day of the delivery month (either the buyer or the seller or both parties can apply for delivery every day ring trading hours)
in the past, Zhengzhou wheat has been implementing rolling delivery. From the first day of the delivery month, the seller can apply for delivery at any time ring the trading hours (on the seat of the exchange). When a seller (the holder of the selling contract and the holder of the warehouse receipt) applies for delivery, the host computer of the exchange will automatically search the buyer trader with the longest position and complete the matching with the seller. This form of seller applying for delivery is called "seller first"
so sometimes a buyer suddenly finds that his position is gone after the closing, and it has been matched by delivery! At present, both the buyer and the seller can apply for delivery at any time in Zhengzhou stock exchange. In the past, only the seller had the right to apply for delivery, which was mainly for the convenience of the spot procer.