Bitcoin digital fixed

1. The digital signature of bitcoin is an anti-counterfeiting string generated only by the transferor of bitcoin transfer. By verifying the digital string, on the one hand, it proves that the transaction is initiated by the transferor, on the other hand, it proves that the transaction information has not been changed in the transmission
digital signature shortens transaction information to a fixed length string through digital digest technology. For example, when Niuniu initiates a bitcoin transfer, it needs to first digest the transaction into a string, and then encrypt the digest with its own private key to form a digital signature. After the completion, Niuniu needs to broadcast the original (transaction information) and digital signature to the miner, and the miner uses Niuniu's public key for verification. If the verification is successful, it means that the transaction is indeed sent by Niuniu, and the information has not been changed
at the same time, the private key encrypted by digital signature is inconsistent with the public key decrypted by digital signature, so asymmetric encryption technology is adopted. It looks so complicated. In fact, you only need to input the private key to complete the transfer instantly!

2. The digital signature in bitcoin is generated by the initiator in the transaction. In order to ensure that this transaction is initiated by this person, and the data is not tampered with ring transmission. Digital signature is simply a complete transaction information, compressed into a fixed format string by digital digest technology, and then generated a private key by asymmetric encryption technology. The complete transaction information and digital signature are sent to the miner. The miner decrypts the digital signature with the public key of the transaction initiator. If the decryption is successful, the transaction data will be written into the block.

3. Bitcoin is BTC and eth is Ethereum
the concept of bitcoin was first proposed by Nakamoto on November 1, 2008, and was officially born on January 3, 2009 [1]. According to the idea of Nakamoto, the open source software is designed and released, and the P2P network on it is constructed. Bitcoin is a virtual encrypted digital currency in the form of P2P. Point to point transmission means a decentralized payment system
Ethereum is an open source public blockchain platform with smart contract function, which provides decentralized Ethereum virtual machine to process point-to-point contract through its special cryptocurrency ether (ETH)

warm tips:
1. The above information is for reference only, without any suggestions
2. According to the notice on preventing the financing risk of token issuance, there is no approved digital currency trading platform in China. According to the regulation of digital currency in China, investors have the freedom to participate in digital currency transactions at their own risk
response time: February 1, 2021. Please refer to the official website of Ping An Bank for the latest business changes
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4. To enter the field of digital currency, you only need to remember the names of the top 100 market value digital currencies or reliable currencies of the operation team, such as eth, XRP, EOS, LRC, BTM, LRN, mana, NAS, HT, etc.

5. The significance of bitcoin mining: distribute the initial bitcoin
opponents of bitcoin accuse mining of wasting a lot of resources to make meaningless coin toss, while supporters take gold mining as an example. For the bitcoin system, the biggest significance of this kind of resource consumption mining is: to distribute 21 million initial bitcoins fairly, just like to consume resources to dig gold, the only way to distribute initial bitcoins fairly is to consume resources to dig bitcoins

bitcoin has thousands of plagiarists, competitors and improvers because of its open source code. Generally, those who simply and imitate bitcoin are called Shanzhai coins, and those who add certain new features to bitcoin are called competitive coins. Some coins add other functional moles such as smart contract to bitcoin, and call themselves "second generation coins". These thousands of coins try all the initial coin distribution modes you can imagine, such as the average distribution of the initial coin to each Icelandic, the distribution of the initial coin to the nextcoin of 73 crowd funding participants, and the slow distribution of the majority of the initial coin by the developer

but the fairness of all these ways of distributing initial coins is far weaker than the mode of burning money to obtain initial bitcoin, and fairness is the core problem of a monetary system. Therefore, although bitcoin mining consumes a lot of resources, it is a reasonable economic behavior just like consuming resources to mine gold.

6.

The reasons why bitcoin is digital gold are as follows:

1. Bitcoin has the highest market value among digital currencies and is also the foundation of digital money market

The total amount was limited

3. The proct of the development of the Internet, which has no institutional or national support, is fair

Its value is graally recognized by the public

Compared with gold, it is more convenient for identification, segmentation, carrying and storage

Programmable currency can meet the needs of charity and government to solve corruption{ RRRRR}

7. The number of bitcoins is constant, there are 21 million, and some of them have not been g up. Log in to the bitnet exchange to check the real-time market of bitcoin.

8. Bit B can be used as money because it can be exchanged with other currencies

9. The total amount of 21 trillion (Satoshi) will not increase, but can only decrease. It is said that there are more than 10000 nodes. It is impossible for these machines to be formatted at the same time (of course, the sudden destruction of the solar system, earth and moon system is excluded). The decrease is because the wallet password of indivial machines is lost and the owner can't use it, Therefore, it will never circulate if you die in the account book forever (it's hard to say whether the measurement can pit the password or the meaning). In short, all the numbers are in the account book, and many of them will not flow for some reason. In my opinion, there are several loopholes. One is the measurement threat. The second is the miners are threatened. It's easy to be found because they consume too much electricity. The fluctuation of the capital market also threatens the stability of the system. Without the miners to maintain this thing, they can't play any more. Miners still have to survive, so the conditions that restrict the survival of miners always shake the system, and all kinds of chaos will appear. So don't expect too much