Blockchain does not need bitcoin
at the same time, it can provide mutual trust for transactions by using trusted self-executive code, so as to rece uncertainty and promote digital transfer and asset transactions
bitcoin is the most well-known blockchain as an encryption currency that uses blockchain technology to realize alternative payment. Bitcoin is a kind of unlicensed blockchain, also known as public blockchain, which does not restrict the identity of users who consume bitcoin or participate in verifying the authenticity of transfer blocks in the blockchain (an energy intensive process, also known as "mining"). These miners get token, or bitcoin, in return, and given that everyone can view the block (though anonymously), the blockchain itself is somewhat transparent
bitcoin is controversial and banned by many countries e to user anonymity to a large extent. However, it is worth noting that the anonymity and energy use of bitcoin are its own characteristics, not the characteristics of the whole blockchain technology.
blockchain technology is not only the underlying technology of bitcoin, but also the core and infrastructure of bitcoin bitcoin has been running without any centralized organization operation and management. Later, bitcoin technology was abstracted, which was called blockchain technology or distributed ledger technology
extended data:
disadvantages of blockchain technology applied to digital currency:
first, there is no circulation management organization for "decentralization" blockchain technology is essentially a distributed database system with one-way linked list logic structure and P2P network design mode, which determines that there is no unified central control system for virtual currency based on blockchain technology
Second, it is difficult to effectively control the quantity supply the circulation of virtual currency based on blockchain technology is fixed, and according to Fisher Equation, the total transaction volume of the whole society under a certain price level in a certain period has a certain proportion with the required nominal currency volume, while the constant currency volume obviously can not meet the requirements of the growing total price of social goods Thirdly, "mining mechanism" is difficult to create recognized value bitcoin itself has no value and no national credit support. Some people think that "by continuously consuming computing power and energy to inject value into virtual currency", but it is obviously not the most efficient choice to consume millions of calculations in order to find a hash value that meets the requirements Fourthly, procers and early holders are easy to get high seigniorage any virtual currency based on blockchain technology is held by a few people at the initial stage of its development. Take bitcoin as an example. At first, bitcoin was only a proct of a few people's game. The first bitcoin purchase in May 2010 was $10000 BTC's purchase of $25 pizza. The first bitcoin transaction completed in July of the same year was $0.04/btcsupplement:
the fee is 5500 yuan / academic year, and the accommodation is 1200 yuan / academic year. Art is more expensive.
On March 19, trump signed an executive order to prohibit U.S. citizens and entities or indivials and entities in the United States from participating in digital currency transactions concted by the Venezuelan government or its agents. The executive order came into effect at noon on March 19
since the second half of 2017, the United States has repeatedly imposed sanctions on Venezuela e to the holding of the constituent assembly election and other reasons, expanded personal economic sanctions on current and former senior officials of Venezuela, and prohibited U.S. financial institutions from participating in New debt and equity transactions between the Venezuelan government and state-owned Venezuelan oil companies, American institutions are prohibited from participating in the trading of some bonds issued by Venezuelan public sector
Although bitcoin and blockchain are closely related, they cannot be equated
blockchain is the underlying technology of bitcoin
when the bitcoin system was first launched, there was no concept of blockchain, because people couldn't understand bitcoin, let alone blockchain
but in fact, up to now, we are still in a state of only knowing the concept of blockchain, and have not yet thought out the specific application landing scheme and business model. Therefore, at present, most of the blockchain applications are token, integral, pet keeping, etc. (but the application of the actual blockchain will be extremely broad), and most of the components of the actual speculation, So there is also a certain bubble, which is a bit similar to the Internet in 90s. p>
bus line: no.816 → Metro Line 6 → Metro Line 2, the whole journey is about 39.1km
1. Walk about 210m from Yanjiao Town to Yanjiao Xinggong Garden Station
2. Take no.816, pass 4 stops to Beijing Institute of materials and materials South Station (or take no.930)
3. Walk about 810m to Yanjiao Xueyuan Road Station
4. Take Metro Line 6, After 10 stops, go to Chaoyang Gate Station
5, walk about 130 meters, transfer to Metro Line 2
6, take Metro Line 2, go through 3 stops, go to Chongwenmen station
7, take a taxi to Beijing municipal government