Main features:
1, decentralization. Blockchain technology does not rely on additional third-party management institutions or hardware facilities, and there is no central control. In addition to the self-contained blockchain itself, each node realizes self-checking, transmission and management of information through distributed charging and storage.
2. openness. The technical basis of blockchain is open source. In addition to the private information of both parties to the transaction being encrypted, the data of the blockchain is open to everyone, and anyone can query the data of the blockchain and develop related applications through an open interface.
3. independence. Based on the agreed specifications and protocols, the whole blockchain system does not depend on other third parties, and all nodes can automatically and safely verify and exchange data in the system without any human intervention.
4. Safety. As long as all data nodes of 5 1% cannot be controlled, network data cannot be manipulated and modified at will, which makes the blockchain itself relatively safe and avoids subjective and artificial data changes.
5. anonymity. Unless there is a legal requirement, technically, the identity information of each block node does not need to be disclosed or verified, and the information transmission can be anonymous.
Extended data
Application direction:
1. Payment: For example, in terms of time, traditional cross-border remittance takes 10 minutes or several days, while blockchain cross-border remittance can arrive in a few seconds due to decentralization. In terms of convenience, traditional cross-border remittance needs to wait until the next day after 19, while blockchain cross-border remittance can achieve all-weather remittance with only one mobile phone.
2.* * * Enjoy medical records: The medical data blockchain * * * sharing platform can realize a variety of application scenarios, patient medical history data and other information can be uploaded, and people who enter the system can view medical history and image data. These medical data can also be used for modeling and machine learning.
Baidu encyclopedia-blockchain