Ethereum team clothes

2.

At present, there are many channels for domestic users to buy Ethereum. Here are some common channels:

< H2 > 1. Coincola is an over-the-counter trading platform for indivials to trade bitcoin

coy Cola is affiliated to Hong Kong coincola limited, which is developed and operated by a professional international team, focusing on providing convenient and reliable blockchain services for global users. Coincola gathers global users and is committed to building a world-class blockchain asset platform

in coy cola, people from different countries can buy bitcoin with their own currency. The seller of the website publishes the advertisement of selling bitcoin, and explains the payment method and exchange rate. You can choose to trade directly online according to the content of the advertisement. Bitcoin is stored in Ke Ying Cola's Internet wallet. You can transfer bitcoin directly

2. How to buy eth

< UL >

register the coincola account, and then click "buy" in the top menu of the home page to enter the advertisement list page

select the appropriate advertisement from the advertisement list and click "buy eth" to enter the transaction page

enter the amount of money to be purchased or the number of digital currency (please understand the message information of the other party, payment method, and transaction instructions of the platform before entering), click buy now, and the order confirmation pop up. After checking and confirming the information, click confirm purchase to enter the order page

in the chat box of the platform, you can inquire whether the other party is online according to the template statement, and make offline payment according to the collection information and collection method provided by the other party

after the completion of offline payment, click the mark that the payment has been completed at the first time (please complete this operation within 15 minutes at the beginning of placing an order, so as to avoid the payment cannot be recovered e to the cancellation of the order e to overtime), and then customize the input information in the chat box to confirm the payment and ask the seller to confirm the collection and release the digital currency

the progress bar in the top column shows that the goods have been received, indicating that the digital currency has arrived in the wallet. Make comments according to the seller's behavior, and click submit to complete the transaction

< / UL > < H2 > 2. C2C trading on trading platform

with the rapid increase in the number of trading platforms and competitive pressure, many trading platforms will have their own C2C trading. Here we take the relatively large ZB trading platform as an example to illustrate

What is C2C

C2C transaction is a customer to customer transaction, which is guaranteed by the transaction platform. There are many such platforms, such as: Fire coin, otcbtc, bitpai OTC, etc., which are guaranteed by the platform and traded between users. We can simply understand it as: our shopping situation on Taobao is the same as that. In case of dispute, the platform will arbitrate. As long as the transaction is carried out according to the normal process, the security of the transaction is guaranteed

2. ZB's C2C business

ZB platform has two choices: QC and usdt. The basic logic is the same. There are many usdt platforms. QC is the feature of ZB, EXX and other platforms. Here we focus on QC

< H2 > about QC

QC is a token. At present, you may know more about usdt and bitcny. At present, there is a special area for QC transaction on ZB. Simply put, QC can buy all other digital currencies (BTC, ETH, EOS, etc.) on ZB. Therefore, after purchasing QC with RMB recharge, you can conct currency transaction on ZB station

The advantage of the < H2 > QC token is that the exchange ratio between the < H2 > < UL >

and RMB is 1:1, which is easier to convert

purchasing other tokens with QC can be directly understood as purchasing RMB, and has an intuitive understanding of the currency price

it takes about half an hour to get to the account. It will take about two hours to get to the account in congestion

ZB platform is relatively reliable, and the reputation of ZB is still very good in the past

How to operate C2C of ZB

< UL >

log in to ZB trading platform and click "C2C trading" on the page

to get to the QC transaction page, you need to first bind your bank card. Then, in the buy QC interface, enter the quantity of QC you want to buy. At present, the ratio of QC to RMB is 1:1. Enter the purchase quantity and click "buy now"

after clicking "buy now", you will be prompted to complete the payment within 30 minutes. At the same time, payment information is generated. Please note that the payment must be made according to the prompt

< / UL > < H2 > official statement:

business processing time 9:00-21:00. Non processing time orders will be processed at 9:00 the next day, and the payment will be completed within 24 hours after receiving the order

this means that the merchant you paid will transfer QC coin to your account within 24 hours. According to my experience, you can get to the account in 2 hours ring the day

< H2 > the following points should be paid attention to:

1) make sure to use the newly bound bank card for transfer and payment

2) note information (that 6 digit) must fill in

3) do not use Alipay, WeChat and other transfers. p>

4) do not fill in the opposite account incorrectly

< UL >

about 1-2 hours, you can check whether your QC has arrived in the financial center

after the account is received, you can trade in the "QC" zone of the "spot trading". You can choose the transaction you want to buy and buy the order

3. Pyramid selling refers to: in the name of selling or promoting goods, the popular point is to attract people to join the association through temptation and collect membership fees as the main way of making profits, that is, pyramid selling (without any physical goods and investment procts in essence)
Direct Selling: a sales system built by a group or enterprise, which develops the first, second, third, provincial, municipal, and local level businesses with indivials or teams County level and other regional agents, physical settlement, according to their agency level to obtain unequal proportion of commission,

4. 1. What is the ether classic<

etc (Ethereum Classic) is a bifurcated currency that Ethereum hard bifurcates after 1920000 blocks, and its function is very similar to Ethereum. Etc adheres to the concept of decentralization and supports the consensus mechanism of blockchain guarantee. Etc firmly believes that once the blockchain starts to run, its development direction will not be controlled by any central team, but will be determined by the consensus of the people participating in the whole network and the consensus of the computing power of the whole network

the Ethereum blockchain hard branching in July 2016 aims to transfer the Dao funds stolen by hackers to an account controlled by investors, and let the old transaction records be forgotten by history. Most Ethereum developers are involved in the reversal, as are exchanges, startups and other members of the ecosystem. A few days later, the project returned to normal. But not everyone wants to forget the old record. As a result, a small number of miners continued to use the original blockchain as a protest. They described the hard fork as a capital withdrawal for the abandoned project of the Dao. So Ethereum classic (etc) was born

2. Detailed parameters

Chinese Name: Ethereum classic English Name: Ethereum classic English abbreviation: etc

developer: Ethereum Classic team core algorithm: ethash consensus proof: POW

release date: 2016 / 7 / 20 block time: About 15-17 seconds / block

total currency: fixed at 210 million, up to 230 million, Every 5 million blocks decelerate by 20%, and the first proction rection is expected to be in December 2017

main features: independent cryptocurrency

5. What is the age of intentional injury? 14-16 if the victim is not seriously injured or died, he will not bear criminal responsibility
it is impossible for an aunt to take her to surrender herself to the crime of harboring. Of course, perjury may constitute the crime of shielding
according to what you said, it's still in the investigation stage. You find out that the case is handled by that branch or police station, and the person is in that branch or police station. It's not hard to find such a big person, is it
when the public security organ interrogates a minor, it is necessary to inform the guardian to be present. If you are not informed to be present, you can claim that the other party's means of obtaining evidence is illegal in the prosecution stage, and the confession obtained in this way should be excluded. That is, the court will not accept the evidence obtained by the other party
at present, it is only the investigation stage. You can consult the local lawyer or entrust a lawyer to provide legal help. To protect the legitimate rights and interests of children and aunts. I advise you not to be in a hurry. If the injury is not serious, you should not be sentenced. As long as there is no perjury, the aunt will come out after investigation. It's going to be fine.

6. Aofex is a good trading platform with good reputation and millions of registered users. Their risk control team has rich experience in financial risk control management, which can ensure your transaction security.. If you have any questions in this respect, you can ask them at any time

7. Clever cracking of DVD-ROM area code: most DVD-ROM drives have locked the area code. After the user purchases the DVD-ROM drive, the user is allowed to modify the area code five times. After five times, the DVD-ROM drive will be locked on the last selected area code. Although the DVD disc with the area code can be read normally, the DVD disc with other area codes can no longer be read. Wan Yi said that the area code of the DVD-ROM drive you purchased has been locked. Can you make it a full area code DVD-ROM drive? Of course it's possible! 1、 What is area code restriction? We often hear about the limitation of area code. Its method is to lock and partition the data on DVD-ROM. therefore, any decompressed device (such as DVD-ROM drive), whether it is hardware decompressed, software decompressed or semi soft and semi hard decompressed, must be certified and authorized by CSS (content scrambling system), Only in this way can the CSS decoder be used legally on the proct. Theoretically speaking, the first zone DVD-ROM issued in the United States cannot be played on the sixth zone DVD sold in China. However, only DVD Films published by eight major film companies in the United States have such restrictions, not the original specifications of DVD. In other words, there is no regional restriction on DVD Films published by eight non American film companies, which is generally called free region code or whole region film. The six regional codes are distributed as follows (as shown in Figure 1): region 1: the United States, Canada and the East Pacific Islands. Region 2: Japan, Western Europe, northern Europe, Egypt, South Africa, Middle East. Region 3: Taiwan, Hong Kong, South Korea, Thailand, Indonesia and other Southeast Asian countries. Region 4: Australia, New Zealand, central and South America, South Pacific Islands. Region 5: Russia, Mongolia, Indian peninsula, Central Asia, Eastern Europe, North Korea, North Africa, northwest Asia, etc. District Sixth (Region6): Chinese mainland. The packaging of DVD movies we buy usually has location code. All DVD movies published in mainland China are printed with the words "6" or "all". The former is limited to domestic distribution, while the latter is not limited by location code. It is applicable to all DVD-ROM drives. 2、 DVD-ROM drive lock code analysis 1. No lock code in domestic sales of DVD-ROM drive, some are no area code restrictions, that is, the whole area play, such as: MEDA Feifan 12 ×/ sixteen ×、 Omega 12 ×、 MSI 12 ×、 Moses 12 ×/ sixteen ×、 Zhimei 16 ×、 Changgu 16 ×、 Onda 12 ×/ sixteen ×、 Zhongji 12 × wait. Use the famous drive region info 2.1 software to detect (download address is), if the interface as shown in Figure 2 appears, it means that it is a DVD-ROM drive without locking code. This kind of DVD-ROM drive is to play software control area code, DVD-ROM drive without any protection. 2. The lock code is detected by drive region info 2.1 software. If the interface as shown in Figure 3 appears, it means that it is a DVD-ROM drive with lock code. Under "region info", the region code setting information of this DVD-ROM drive. The first "region code:" indicates that the DVD-ROM drive has not been set with a region code, that is, no one has used the DVD-ROM drive. The second "user:" indicates that the user still has five chances to change it. The third "manufacturer" indicates that the factory still has four chances to restore it, With the factory's own program, the user can have five more modification opportunities, and the factory has only five permissions, that is to say, the user can only change the area code 25 times at most. Small knowledge: the lock area code of DVD disc is protected by DVD-ROM drive, so it has nothing to do with the limitation of DVD playing software. However, this does not mean that if a zone 2 DVD is inserted into the DVD-ROM drive with the lock code, the DVD-ROM drive will be set to zone 2. The DVD-ROM drive will change the area code only when the DVD player software is running and the area code is set in the DVD player software. In other words, the DVD player software selects the region code, and the DVD-ROM drive is responsible for limiting and recording the number of modifications. For locked DVD-ROM drives, only a few cannot be cracked temporarily (such as Mingji dvd-1648a, Xianfeng dvd-118.hongsheng 12) ×、 LG 16 ×， Most of them can still be cracked, mainly in the following four cases: (1) by upgrading firmware to crack this kind of DVD-ROM drive, although the area code is locked, you can upgrade the area code to crack the version of firmware, so that the DVD-ROM drive becomes the whole area code. For example: Patriot 12 ×/ sixteen ×、 Jianxing 12 ×/ sixteen ×、 Mercedes Benz 16 ×、 Sony 12 ×/ sixteen ×、 Three emperors 12 ×、 Mingji 1640a / 1640a2, Jianji dvd-1640 Pro / dvd-1640 pro-a, Mitsubishi Diamond 1640a-032 / 1640-232 ×、 Innovation 12 ×、 Taidian 16 ×/ Champion 16 ×、 Yingqun BTC bdv-212b / BTC bdv-316b, etc 2) Some DVD-ROM drives can also be cracked by pressing and holding the "play" button on the front panel for a few seconds, and then they can play the discs in all regions of the world smoothly. For example: Omega PDVD a148. Taidian champion II generation 16 ×、 Yuanxing 16 ×、 Asia News 16 × Wait 3) Through the jumper crack, the more special is ASUS 12 × The DVD-ROM drive can pass the factory test jumper on the left side of the rear panel, and the third group of jumpers can be short circuited to make the DVD-ROM drive become full area code 4) When the software detects the lock code, there is no lock code actually. Some DVD-ROM drives are in the lock code state when they are detected with drive region info version 2.1 software, but they are not locked actually. For example: Apache 16 ×、 Qiheng 16 × wait. 3、 Before cracking the soft method of area code protection, you have already understood the protection method of DVD-ROM area code. Next, we will introce how to crack the area code protection for you. For the locked DVD-ROM drive, the last three cases can be cracked according to the above instructions. In the first case, the firmware is cracked by upgrading the area code. The cracking process is similar to the refresh process described in "firmware upgrade", which will not be repeated here. Tip: where to download the cracked version of firmware? The cracked version of firmware can be downloaded from the "home of drivers" website (), software download website, etc. Some official websites also provide cracked version of firmware to download. Whether it's a DVD-ROM drive with no lock code or a lock code, as long as you insert a DVD disc with a different area code from the last time to play, you will jump out of the menu to ask if you really want to change the area code setting, and you will be informed of the remaining modification opportunities. In case there is no chance of modification, in addition to re installation, there are other ways to restore the original five modification opportunities. To modify the limitation of DVD playing software, there is a well-known foreign software dvd genie, which can be applied to most DVD playing software on the market, such as PowerDVD and windvd. DVD Genie 4.10 is available for download, and the file size is only 323kb. After installing DVD genie, you can modify the area code of DVD player by running DVD genie. If you are using windvd, switch to the "windvd" tab, and then press the "reset region" button in the lower left corner to clear the area code record (as shown in Figure 4). You will have five opportunities to modify the area code again. After modification, click the "quit" button to leave. If you are using PowerDVD, switch to the "PowerDVD" tab, then you must first select an area code, then check the "alternate region setting" in the lower left corner, then press the "apply" button (as shown in Figure 5), and finally click the "quit" button to exit. Tips: bypass the DVD-ROM drive lock code, also can smoothly play DVD movies. Do you have to upgrade firmware to play DVD movies? Of course not. I teach you a good way, that is through the zone selector 3.0 software (download address, file size is 343kb). The method of this program is very simple. You only need to run this program after installation and when you want to watch the movie later, select the area code you want, then click the "save" button and press the down arrow at the top right to play it (as shown in Figure 6). The working principle of this program is to activate the DVD player software, and let the DVD player software mistakenly think that the area code of the DVD disc is the area code you want, so that it can play smoothly

8. Hello, it's Esrael

9.

Transaction

the behavior of blockchain transaction follows different rule sets

< UL >

e to the distributed and unlicensed nature of public blockchain, anyone can sign the transaction and broadcast it to the network

according to different blockchains, traders will be charged a certain transaction fee, which depends on the needs of users rather than the value of assets in the transaction

blockchain transactions do not require any central authority verification. It only needs to use the digital signature algorithm (DSA) corresponding to its blockchain to sign it with the private key

once a transaction is signed, broadcast to the network and mined into a successful block in the network, the transaction cannot be recovered

Ethereum transaction structure

Ethereum transaction data structure: transaction 0.1 eth

{
& 39; nonce':&# 39; 0x00', // Decimal: 0
& 39; gasLimit': &# 39; 0x5208', // Decimal system: 21000
& 39; gasPrice': &# 39; 0x3b9aca00', // Decimal system: 10000000000
& 39; to': &# 39;&# 39; ，// Sending address
& 39; value': &# 39; 0x16345785d8a0000',// 100000000000000000 ，10^17
' data': &# 39; 0x', // Decimal representation of null data; chainId': 1 / / blockchain network ID
}

these data have nothing to do with the transaction content, but have something to do with the execution mode of the transaction. This is because when you send a transaction in Ethereum, you must define some other parameters to tell miners how to handle your transaction. Transaction data structure has two attribute designs & quot; gas": & quot; gasPrice",& quot; gasLimit"

" gasPrice": The unit is Gwei, which is 1 / 1000 eth, indicating the transaction cost

& quot; gasLimit": The maximum gas charge allowed for the transaction

these two values are usually filled in automatically by the wallet provider

in addition, you need to specify which Ethereum network to execute the transaction (chainid): 1 represents the Ethereum main network

ring development, tests are usually carried out locally and on the test network, and transactions are carried out through the test eth issued by the test network to avoid economic losses. After the test, enter the main network transaction

in addition, if you need to submit some other data, you can use & quot; data" And & quot; nonce" Attach as part of a transaction

a nonce (number used only once) is the value used by Ethereum to track transactions, which helps to avoid double spending and replay attacks in the network

Ethereum transaction signature

Ethereum transaction involves ECDSA algorithm. Taking JavaScript code as an example, the popular ethers.js is used to call ECDSA algorithm for transaction signature

const ethers = require(' ethers')

const signer = new ethers.Wallet(' Wallet address

signer.signTransaction({

' nonce':&# 39; 0x00', // Decimal: 0

& 39; gasLimit': &# 39; 0x5208', // Decimal: 21000

& 39; gasPrice': &# 39; 0x3b9aca00', // Decimal 10000000000

& 39; to': &# 39;&# 39; ，// Sending address

& 39; value': &# 39; 0x16345785d8a0000',// 100000000000000000 ，10^17

' data': &# 39; 0x', // Decimal representation of null data

& 39; chainId': 1 / / blockchain network ID

})

. Then (console. Log)

you can use the online application composer to deliver signed transactions to Ethereum. This is known as "offline signature.". Offline signatures are particularly useful for applications such as status channels, which are smart contracts that track the balance between two accounts and transfer funds after a signed transaction is submitted. Offline signature is also a common practice in dexes

you can also use online wallet to create signature verification and broadcast through Ethereum account

with Portis, you can sign a transaction to interact with the gas station network (GSN)

< / UL >

the Xueshuo innovation blockchain Technology Workstation of Lianqiao ecation online is the only approved "blockchain Technology Specialty" pilot workstation of "smart learning workshop 2020 Xueshuo innovation workstation" launched by the school planning, construction and development center of the Ministry of ecation of China. Based on providing diversified growth paths for students, the professional station promotes the reform of the training mode of the combination of professional degree research, proction, learning and research, and constructs the applied and compound talent training system

10. One month ago, it can be said that, now comparing the data of coin an intelligent chain and Ethereum, it is still easy to see that the choice of users has graally shifted to coin an intelligent chain, and Ethereum is no longer the dominant player in the public chain market.