BTC derived blockchain

1.

1. Litcoin (LTC) is an improved version of digital currency inspired by bitcoin (BTC). It was designed and implemented by a programmer who worked in Google. It was released on November 9, 2011. Lightcoin and bitcoin have the same implementation principle in technology, but the creation and transfer of lightcoin is based on an open source encryption protocol, which is not managed by any central organization

2. Sunshine coin (SSC for short) is sponsored by Liu Chunyang, vice president of Jinhua express delivery Association of Zhejiang Province, instrial entrepreneur and philanthropist of express delivery instry. As a legal person, Zhejiang Dongyang Yueyin Technology Co., Ltd. is registered with the formal instry and Commerce Bureau, with a registered capital of 10 million yuan. With this as the backing and support, the sunshine elite team affiliated to the company launched the first virtual coin sunshine coin

The English name of Vicat is onecoin, which is a kind of Internet virtual currency term created by the government and is suspected of pyramid selling fraud

in 2017, CCTV announced the list of 350 fund pyramid schemes, with Vicat in the list

in May 2018, Zhuzhou County Procuratorate of Hunan Province prosecuted the last four suspects involved in the third batch of the "3.15" Vicat money online pyramid scheme case supervised by the Ministry of public security to the court

4. Amazon coin

Amazon announced in early February 2013 that it is expected to launch Amazon coins in the United States in May 2013. Amazon coins is a new virtual currency that allows U.S. users to buy apps, games and props in the kindle fire. Amazon will provide tens of millions of US dollars of Amazon coins at that time to let users try and consume the apps, games and props in the app on the kindle fire for free

5. Eth is a kind of digital token of Ethereum, which is regarded as "bitcoin version 2.0". It adopts the blockchain technology "Ethereum", which is different from bitcoin. It is an open-source public blockchain platform with intelligent contract results, and a resonance network composed of thousands of computers around the world. Developers need to pay eth to support the application. Like other digital currencies, ether currency can be bought and sold on the trading platform

2. The most popular is bitcoin. Bitcoin has been popular for a long time. It can be cashed and converted into the currency of most countries. Users can use bitcoin to buy some virtual items, such as clothes, hats and equipment in online games. As long as someone accepts it, they can also use bitcoin to buy real-life items
in China, the other one I know is the network mutual aid blockchain, which represents the platform of concentric mutual aid. Blockchain technology is used to solve the shortcomings of the network mutual aid instry. At present, blockchain is also very popular in the network mutual aid instry.

3.

Blockchain technology is a new technology derived from the development of bitcoin economy, blockchain technology can effectively serve the bitcoin economy , they are interrelated. Bitcoin is a kind of virtual currency, which only circulates in a specific network economic environment, blockchain technology can not only be applied to the economy, but also can be used in all walks of life , which is their difference

Blockchain technology

because blockchain technology is still a new proct at present, it has no accurate or definite definition and concept. In short, blockchain technology is a mode of data encryption management, which can protect data to a great extent. Blockchain technology is characterized by decentralization, openness, independence, security and anonymity. Its characteristics well adapt to the requirements of information protection and information disclosure in all walks of life. On the one hand, it ensures the security of data and avoids the interference of subjective emotions and system failures. On the other hand, data indivials can decide whether to hide their detailed information in the group to the greatest extent, so as to achieve the purpose of privacy protection

At the same time, there is no doubt that the blockchain technology is still in the state of preliminary development. The social understanding of it is not deep enough, and scholars are still in the stage of continuous exploration. Through the correct use, blockchain technology will bring many positive effects to the society

4. Bitcoin blockchain is a bitcoin blockchain? No, the block stores the transaction. In the early stage, you will get a coin if you successfully build a block. In the later stage, you can only get the fees paid by the exchange. A currency is a string of digital signatures. It is a digital signature sent by the last owner to the receiver. Everyone can see who owns the currency from the transaction
does each node have complete blockchain data? You mean a user node? A user node needs to keep the of the block head of the longest workload proof chain, so it knows the data of all the block heads. It can move forward to know all the data on the block chain, but not all of them are saved. A block header is very small, only 80 bytes, which can be saved completely, because the generation of nodes is very slow. Even with the passage of time, the amount is not too large now.

5. Laikelib blockchain infrastructure operation team thinks: blockchain technology can be understood as a public accounting mechanism, which is more a technical solution than a specific proct. The basic idea is to establish a set of public account books on the Internet, in which all users in the network keep accounts and check accounts together, so as to ensure the authenticity and non tamperability of information. The reason why it is called "blockchain" is that the structure of blockchain storage data is composed of a chain of "storage blocks" on the network. Each block contains all the information exchange data in the network within a certain period of time, and the chain continues to grow over time
relationship between blockchain and bitcoin: bitcoin used to be one of the most successful applications of blockchain technology. Specifically, the blockchain is a series of data blocks generated by the use of cryptography Association, and each data block contains the information of effective confirmation of multiple bitcoin network transactions. It can be said that bitcoin is a "killer application" of blockchain idea. Blockchain is the underlying technology of bitcoin, but its role is not limited to bitcoin.

6. In fact, human beings are a complex biological science research carried out by aliens secretly. The development results seem to develop naturally. In fact, every step is the result of data regulation by aliens, and the whole process has been secretly transmitted back to the alien base. Refinement to each person's growth and development may correspond to a program variable in the operation process, or a non unique answer to a problem. For example: Americans and Asians, in fact, correspond to the X and Y in the alien project research. Taking different values will get different effects.

7. Building owners, different procts apply for different projects to provide different information
the information needed for RF is:
2 Sample (s) PCs 3-4 sets (complete set with accessories, frequency interval greater than 1m, need three prototypes of high, medium and low frequency launch and one common launch sample or fixed frequency software)

3 The technical specification includes the following contents:
a Frequency: indicate the frequency range or detailed frequency points
B Movement: working mode, such as FM, HFSS, DSSS, unps, GSM, CDMA, etc.
C Output power

4 User manual

5. BOM list of key components (PCB, wire, etc., UL file No.)

6 Block diagram (antenna should be provided, and the transmitting frequency should be marked at the antenna end)

8 Part layout

9 Circuit description is also called operational description

9. PCB silk screen diagram PCB laout diagram (printed wiring diagram)

10. Charger en60950 test report. En60950 report for adapter

11. Final hardware version, final software version

12. Engineering instruction BT of Bluetooth, WiFi molation for testing

13. Antenna specification (including gain, GSM, WiFi, BT, WCDMA antenna gain)

14, Need to provide cell specification)

15. UL cert for PCB board (flame retardant grade greater than or equal to V-1)

16. Doc countersigned / POA countersigned (when the report is completed)

if it is high-voltage procts, you need more information about key components of safety regulation!

8. Looking at the operation process of blockchain from a transaction:
in bitcoin blockchain, when a transaction is generated through a node or wallet, it needs to be transmitted to other nodes for verification. The method is to encrypt the transaction data by digital signature and obtain a unique hash value representing the transaction by hash algorithm, and then broadcast the hash value to other participating nodes in bitcoin blockchain network for verification. Hash algorithm is to map any length of binary value to a fixed length of smaller binary value, then the smaller binary value is called hash value. Hash value is a unique and compact numerical representation of a piece of data. If you hash a piece of plaintext and change only one letter of that piece, the subsequent hashes will proce different values. It is computationally impossible to find two different inputs hashed to the same value
when a new transaction is generated, it will be broadcast to other participating nodes in the blockchain network first. Each node will put several new transactions into the block, and each node will collect several unverified transaction hash values into the block. Each block can contain hundreds or thousands of transactions
each node calculates the workload proof to decide who can verify the transaction, and the node with the fastest result will verify the transaction, which is a consensus approach. The node that obtains the verification right will broadcast the block to all nodes, and the node that completes the pow the fastest will broadcast its block to other nodes. Each node verifies and connects the new block. Other nodes will confirm whether the transaction contained in this block is valid. After confirming that it has not been repeatedly spent and has a valid digital signature, they will accept the block. At this time, the block will be formally connected to the blockchain and the data cannot be modified. Once all nodes accept the block, the block that did not finish the pow calculation will be invalid, and each node will rebuild a block to continue the next POW calculation
it can be seen that the principle of blockchain is not complicated, and its wide application is natural. Many companies have achieved fruitful results in the process of applying blockchain principles to reality. Like bitcoin, although the ID of the participant is anonymous, the data on the blockchain is public by default. The advantages brought by this openness are unprecedented, such as the ability to resist attacks, the ability to resist the autocratic system of capital control. It is open and transparent while ensuring security, and the account balance of all participants and all transaction records can be seen by people. Until now, we are still surprised by this, because this security method is so novel. However, in the seven-year history of bitcoin, no one has broken this security practically.