Bitcoin paid too much

1. Yes, at present, there is no or very little handling charge for bitcoin payment. You can download bittok coin extension app to have a detailed understanding. There are quite a lot of users at present.

2. First, register and log in by email, and the second picture after login is the receiving address of bitcoin. If you want to pay to this address, you can transfer money to this address by using bitcoin wallet, or withdraw money to this address by using exchange

3. It's supposed to be late, isn't it
otherwise, it's a good thing. unshakable.

4. Date: April 25, 2013 departure station: 3205 Huyi highway, Jiading passenger station
departure time arrival provinces and cities destination seat type total mileage initial invoice price ticketing status
06:55 Jiangsu Zhangjiagang seat 153 no 50 yuan for sale
07:05 Jiangsu Zhangjiagang seat 153 no 53 yuan for sale
07:45 Jiangsu Zhangjiagang seat 153 no 53 yuan for sale
07:45 At 08:30, at 08:42, at 09:00, at 09:00, at 09:00, at 09:00, at 09:22, at 10:05, at 10:05, at 10:05, at 10:05, at 10:05, at 10:00, at 10:00, at 10:00, at 10:00, at 10:00, at 10:00, at 10:00, at 10:00, at 10:00, at 10:00, at 10:00, at 10:00, at 10:00, at 10:00, at 10:00, at 10:00, at 10:00, at 10:00, at 10:00 Zhangjiagang seat 153 no 53 yuan for sale
11:12 Zhangjiagang seat 153 no 53 yuan for sale in Jiangsu Province
11:45 Zhangjiagang seat 153 no 53 yuan for sale in Jiangsu Province
12:15 Zhangjiagang seat 153 no 53 yuan for sale in Jiangsu Province
12:49 Zhangjiagang seat 153 no 53 yuan for sale in Jiangsu Province
13:16 Zhangjiagang seat 153 no 53 yuan for sale in Jiangsu Province Available for sale
13:20 seats in Zhangjiagang, Jiangsu Province 153 no 50 yuan available for sale
13:42 seats in Zhangjiagang, Jiangsu Province 153 no 53 yuan available for sale
14:00 seats in Zhangjiagang, Jiangsu Province 153 no 50 yuan available for sale
14:10 seats in Zhangjiagang, Jiangsu Province 153 no 53 yuan available for sale
14:40 seats in Zhangjiagang, Jiangsu Province 153 no 50 yuan available for sale
14:55 seats in Zhangjiagang, Jiangsu Province The seats in Zhangjiagang, Jiangsu Province are 153 yuan and 53 yuan respectively
15:19 the seats in Zhangjiagang, Jiangsu Province are 153 yuan and 53 yuan respectively
15:25 the seats in Zhangjiagang, Jiangsu Province are 153 yuan and 50 yuan respectively
16:40 the seats in Zhangjiagang, Jiangsu Province are 153 yuan and 53 yuan respectively
17:15 the seats in Zhangjiagang, Jiangsu Province are 153 yuan and 53 yuan respectively
17:40 the seats in Zhangjiagang, Jiangsu Province are 153 yuan and 54 yuan respectively For sale
17:55 Zhangjiagang seats in Jiangsu Province 153 no 53 yuan for sale
18:35 Zhangjiagang seats in Jiangsu Province 153 no 53 yuan for sale
18:50 Zhangjiagang seats in Jiangsu Province 153 no 54 yuan for sale

5. Virtual currency can be divided into three types: 1 enterprise currency, 2 counterfeit currency and 3 digital cryptocurrency. Digital encryption has the characteristics of open source code and off center call

6. Let's distinguish whether there are differences between nodes. The permissions of nodes, such as the decision-making of consensus mechanism, and the power of ledger records, etc

7. Compared with debit card or credit card shopping, bitcoin payment is easier, and can receive bitcoin payment without a merchant account. In the wallet app on your PC or smartphone, enter the payee's bitcoin address and payment amount, and press the send button to complete the payment. In order to input the payee's address more conveniently, many wallets can obtain the address by scanning QR code or touching two mobile phones with NFC technology

but now bitcoin payment is generally handled by a payment institution, which is also regarded as a third-party guarantee institution. Bitcoin is being made in China, and bitpay, coinbase and so on. More about bitcoin home.

8. 1. You can take KLIA ekspres at KLIA airport to KL Sentral for about half an hour. The cost is RM35 one way
2. Take the airport bus, all KL Sentral. About an hour
then take a taxi from KL Sentral or take LRT to KLCC
3. Take a taxi directly from the airport to KLCC.

9. What if the seller doesn't release the money after payment in the bitcoin transaction? What if the seller doesn't release the money when buying bitcoin

10. There are two main cases of double payment: one is to let the miner help to achieve, the other is to become a miner. In November 2013, we found that betcoin has double payment in ghash.io mine pool, and every transaction used by the website can be carried out without waiting for confirmation<
solution:
analyze transaction risk
payment channel
signed by trusted third party
remote authentication
ID verification
block waiting for confirmation
punish double payment