Blockchain platform based on charity

1.

blockchain includes public blockchain, joint (instry) blockchain and private blockchain. Public chain point-to-point e-cash system: bitcoin, smart contract and decentralized application platform: Ethereum

blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies

blockchain is an important concept of bitcoin. In essence, it is a decentralized database. At the same time, as the underlying technology of bitcoin, it is a series of data blocks generated by using cryptographic methods. Each data block contains a batch of bitcoin network transaction information, Used to verify the validity of its information (anti-counterfeiting) and generate the next block

extended data

according to the different degree of blockchain network centralization, three kinds of blockchains under different application scenarios are differentiated:

1. The blockchain with the whole network open and without user authorization mechanism is called public chain

2. The authorized nodes are allowed to join the network, and the information can be viewed according to the authority. It is often used in the inter agency blockchain, which is called alliance chain or instry chain

3. All the nodes in the network are in the hands of one organization, which is called private chain

alliance chain and private chain are also called licensing chain, and public chain is called non licensing chain

blockchain 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 information self verification, transmission and management through distributed accounting and storage. Decentralization is the most prominent and essential feature of blockchain

2. Openness. Blockchain technology is based on open source. In addition to the private information of all parties involved in the transaction is encrypted, the data of blockchain is open to everyone. Anyone can query blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent

3. Independence. Based on consensus specifications and Protocols (similar to various mathematical algorithms such as hash algorithm used by bitcoin), the whole blockchain system does not rely 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 51% of all data nodes cannot be controlled, the network data cannot be arbitrarily manipulated and modified, which makes the blockchain itself relatively safe and avoids subjective and artificial data changes

5. Anonymity. Unless there are legal requirements, technically speaking, the identity information of each block node does not need to be disclosed or verified, and the information can be transferred anonymously

2. Hello, cbyea500, the top in APM series< But as an open source flight control system, it can also be programmed by itself
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4. Open and transparent information and traceability of funds have always been the goals of public welfare and charity. Blockchain can do just that. It can not only track and record all the information, but also ensure that the information is traceable and authentic. As for the successful cases, it seems that there are not many now. After all, it is an emerging technology, and it will certainly get strong support and application in the future.

5. Mr. Hu Zheng, director of China Merchants Group and executive vice chairman of China Merchants charity foundation, explained the public welfare concept of the project, saying that public welfare projects are not simply given and presented, but also need to have a global perspective, and combine the needs of social transformation and the application of scientific and technological innovation. Under the background of global energy transformation and climate challenges, Shekou energy blockchain is a public welfare attempt to join hands with partners, rely on blockchain technology, and drive more public to participate in climate change action with practical actions.

6. Charity is a big topic. Here is a detailed introction of blockchain technology and how to help people in difficult areas to receive better help
whether it's the government or the public welfare organizations, charity is particularly important for people in difficult areas. However, we often think about whether the relevant funds have been allocated to people and where the money has been spent?, Where is the money spent? All these problems are worthy of our consideration
blockchain technology can give charity related funds & quot; Traceability & quot; Develop a charity based app to Digitally encrypt every charity fund or related materials (using the internationally recognized sha256 or China's encryption algorithm SN2)
the data structure of funds and materials uses Merkle tree to store the material data, ensuring that any changed data will automatically become invalid
the applicant and issuer who use asymmetric digital signature, The verifier and the secret key management of "public key" and "private key" can effectively record the processing data of a payment. If the payment is improperly processed or someone wants to query it, it will be very clear.

7. The data stored on the blockchain is reliable and tamperable, which is naturally suitable for social public welfare scenarios. The relevant information in the public welfare process, such as donation project, collection details, fund flow, recipient feedback, etc., can be stored on the blockchain, and can be made transparent and public, which is convenient for social supervision.

8. One is for technology, the other is for love, doing good deeds, for a transparent and open charity environment.

9. This is a political issue, not a technical one
if the money in the public account of a bank wants to be publicized, it can also be publicized, so why doesn't it be publicized< Make complaints about br / > block chain