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Preface
Blockchain is a typical distributed collaborative system in which multiple parties jointly maintain a growing distributed data record. These data are protected by cryptographic technology in content and timing, making it difficult for any party to tamper, deny, or falsify.
1. What are the characteristics of blockchain?
Decentralization and immutability, what is decentralization? For example: Why can't you see the production date on the platform when you buy some goods on the online shopping platform? Because these data are centralized, that is, they can be changed in the database at will, so no one will believe it. The blockchain solves this pain point very well, because the blockchain is not tamperable and has uniqueness. The hash of each data is connected end to end. For more principles, the majority of netizens can browse the information by themselves, here Do not elaborate.
So something on the blockchain must be true? Can it be completely trusted? Then you may have misunderstood the nature of the blockchain. Untamperable does not mean that the content is trustworthy. It is entirely possible that the data written at the beginning is fake, but it cannot be tampered with, so you must distinguish this misunderstanding.
2. What can blockchain bring to brands or industries?
1. Trust
It is not difficult to build a blockchain itself. The difficult thing is the trust system. Once the trust system collapses, then this commercial value no longer exists. Therefore, how to choose a partner is very important. This system is connected to the ant alliance chain of the ant group, and here is a brief introduction to the alliance chain. " True alliance chain " means that the members of the alliance are completely independent and equal, and no member can dominate other members. For example: the Libra alliance established by Facebook, the participants are all large enterprises; the " fake alliance chain " refers to the alliance members They are closely related to each other, which may be branches, subsidiaries, and related companies. If a parent company can control more than 51% of the nodes (51% rule), the blockchain will lose its effectiveness. How to ensure that your system is a true alliance chain? I can't ensure it, but if you can't even trust Alipay, who can you trust?
2. Mini Program Display
This system realizes one code, one thing, and is completely decentralized. All data comes from the blockchain, so every query consumes fuel. The fuel here refers to the consumption measurement of the calculation and storage of the smart contract in the virtual machine. Some malicious attacks and waste of calculation and storage can be prevented through fuel. This system is temporarily not open source .
to sum up
At present, the so-called blockchain system on the market is not necessarily credible. If a parent company can control more than 51% of the nodes (51% rule), then the blockchain will lose its effectiveness. At present, many companies (currently I am sure that There is one, don’t ask me how I know it.) The blockchains used are all “fake alliance chains”, so you should be very careful when judging.