Lower level of health management in blockchain

1. 1. Public chain, no official organization and management organization, no central server, participating nodes freely access to the network according to the system rules, not controlled, and work based on consensus mechanism among nodes Subversive: absolutely credible and open) < br > typical case: digital currency represents bitcoin < br > 2. The private chain is built within a group. The operation rules of the system are set according to the requirements of the group, and the modification or read permissions are limited to some extent, while maintaining the authenticity and partial decentralization of the blockchain Typical case: R3 < br > 3. Alliance chain, jointly initiated by several institutions, is between the public chain and the private chain, and has the characteristics of partial decentralization. The read permission on the fast chain in this area may be public or partially public, that is to say, multiple pre selected nodes are designated as bookkeepers internally, and the pre selected nodes compete for bookkeeping permission, Other access nodes can participate in the transaction, but not the accounting process The abilities of the candidates should not be uneven< Br > (relatively credible and open) < br > existing cases: Super ledger < br > example:? In the case of loan diversion, when the user jumps to the other party's website for registration through our link, the docking party can choose to cheat and say that it has not received the user's registration request. However, if we put the user registration behavior into the block, if the docking party wants to receive the user registration behavior, it must pay us at the same time.

2. The time span is large, and it is estimated that 2019 will not be possible. Moreover, the real estate market is a regular smash, and I don't know when it will break out, so the overall bull market is unlikely

3. Currency leverage transaction refers to the two-way transaction by borrowing money from self-held principal, so as to leverage multiple funds and maximize the enabling "currency transaction". The maximum operating principal is 5 times of the position, so that the income is magnified by 5 times. Of course, the opposite is also a big loss. Please control the risk when using leverage trading. For reference.

4. For a long time, medical institutions have to enre the inability to share data safely on various platforms. Better data cooperation between data providers means more accurate diagnosis, more effective treatment, and improving the overall ability of the medical system to provide cost-effective medical services. With blockchain technology, everyone's medical data will be saved in a dedicated electronic system, and there is no need to worry about the security and integrity of the data
in the future, jinwowo will continue to tap the value of blockchain technology in the commercial field.

5. Chongqing jinwowo: through multiple nodes participating in the calculation in the network, the blockchain can participate in the calculation and recording of data together, and verify the effectiveness of their information with each other, which can not only carry out information anti-counterfeiting, but also provide a traceable path.

6. It can be roughly divided into three categories:
1 - public blockchain: it refers to the blockchain that anyone can read and send transactions for validity confirmation, and anyone can participate in its consensus process, so as to jointly maintain the security, transparency and non tampering of public blockchain data
2-community blockchain: also known as alliance chain, it means that the nodes participating in the blockchain are selected in advance, and there are usually good network connections and other cooperative relationships between the nodes
3-private blockchain: the participating nodes only have a limited range, the access and use of data have strict permission management, the write permission is only in the hands of the participants, and the read permission can be opened to the outside world.