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Several algorithms of digital currency

Publish: 2021-05-27 05:12:17
1. bitcoin is an electronic currency proced by open source P2P software. digital currency is a kind of network virtual currency. Bitcoin is also paraphrased as "bitcoin.". Short for: BTC
bitcoin does not rely on specific currency institutions to issue. It is generated through a large number of calculations of specific algorithms. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction
bitcoin is very similar to cash
the advantages of bitcoin are: no freezing, no tracking, no taxes, and extremely low transaction costs. Compared with people who speculate in currency, it is wealth, and people outside the currency circle may think it is a fraud
bitcoin, Ethereum, bitcash, EOS, REBO, etc. are the mainstream digital currencies, which can be properly invested. All transactions have risks. You can invest cautiously. You can search online for fire coin, coin security, OK, dobby trading platforms, etc. all of which can trade bitcoin. These are relatively large trading platforms, investing in mainstream digital currencies, and Don't invest in counterfeit money or air money.
2. Digital currency is valuable if you think it is useful. If it is not, it is not
for example, q-coin is digital currency, which can be obtained by recharging
bitcoin, for example, is expensive now. It's not worth it or not. This kind of digital currency is not supported in China
3. For many people, the concept of digital currency is a mystery. But there is no doubt that digital currency is different from virtual currency

virtual currency is the electronization of illegal currency, and its original issuer is not the central bank. This kind of virtual currency is mainly limited to circulation in a specific virtual environment. Digital currency can be used for real goods and services transactions, but only the digital currency issued by the state is legal digital currency

in 2013, the central bank, together with five ministries and commissions, issued the notice on preventing the risk of bitcoin, which clearly defined non legal digital currencies such as bitcoin as virtual commodities, not in the form of currency and legal currency< At the same time, digital currency is different from electronic payment. In the actual use experience, digital money and electronic payment may feel similar, but they are still quite different in essence. Before digital currency, the financial instry has been highly informationized. Such as Internet banking, WeChat, Alipay and so on pay the popularization of electronic technology, physical cash accounts for only a very small part of the total circulation of money. In spite of this, because the money used in the transaction comes from the bank account, it actually corresponds to the banknotes.
4. Every digital currency has its own unique algorithm, so you have to think about your application, and then you can do it according to whether you want to do it yourself. If you do it, you will be the mathematical genius.
5. Litecoin

litecoin (LTC), released on October 7, 2011, is the most valuable counterfeit coin at present, accounting for about 2% of BTC's market value. The current unit price is US $2.31, with a total currency value of US $38 million

this is also a distributed (decentralized) digital currency. Unlike the sha256 mining algorithm used by bitcoin, LTC adopts scrypt algorithm. Scrypt algorithm uses sha256 as its subroutine, and scrypt itself needs a lot of memory. Each hash is used as the seed of the input, and then it needs a lot of memory to store another pseudo-random sequence to generate the pseudo-random points of the sequence and output the hash value. In the mining of BTC (bitcoin), it is not enough to rely on simple graphics card mining (it takes about ten to dozens of days to dig a BTC with general configuration graphics card). The emergence of various expensive mining machines has raised the threshold for ordinary people to get BTC through mining, while LTC has certain advantages in using PC graphics card mining This passage comes from Zhihu.)

compared with BTC, litecain has made a little improvement in technology. If BTC is gold now, LTC is silver for the time being

the biggest advantage of litecoin is that it can confirm the authenticity faster. The virtual currency is designed and maintained by Charles Lee. Bitcoin transactions need to be verified, and the average verification time is more than 10 minutes. Most transaction websites need 1 hour to verify. The average transaction confirmation time of liteoin is 2.5 minutes. Developers claim that shortening the verification time increases the practicability of virtual currency. The bitcoin mining efficiency of customized machine and AMD GPU is the highest, making it almost unprofitable for miners using CPU mining. Litecain's mining excludes GPUs and custom processors, so it doesn't rely too much on a small number of professional miners

ppcoin

ppcoin (PPC) was released on August 19, 2012, which has improved the original technology of BTC. Use proof of make and add the concept of coin age

ppcoin is a bifurcated project of bitcoin, which aims to achieve energy efficiency and maintain the best performance of the original bitcoin as far as possible. The unit price of ppcoin is US $0.22 and the total currency value is US $4 million

ppcoin does not have a fixed upper limit of money supply, but it does not mean that ppcoin has obvious inflation compared with bitcoin. Bitcoin can be compared to gold. The annual inflation rate of gold is about 1-3%. Although gold has no known upper limit of money supply, we still know that it is a reliable scarce commodity

ppcoin has two types of casting: work certificate and equity certificate. The coinage rate of working proof is affected by Moore's law, which depends on the doubling of our working proof ability. What we all know is that Moore's law will eventually come to an end. By then, the ppcoin of inflation may be close to the gold level. The annual maximum inflation rate of certificate of equity is 1%. At the same time, ppcoin's transaction costs were destroyed to fight inflation. So on the whole, the coin design of ppcoin is still a very low inflation design in the future, which can be comparable with bitcoin<

ppcoin's reward is similar to lottery, which will determine the winning probability according to the number of ppcoin held by miners. Sunny king, one of the founders, said that their design is based on a new concept of long-term energy efficiency

terracoin

terracoin (TRC) was released on October 26, 2012, with a total currency of 42 million. The speed of each block is 2 minutes, slightly faster than LTC. There is not much special in technology, similar to the proction of BTC halved every four years

however, the operation team seems to have a strong business background and may be better than other bitcoins in circulation. The development of virtual currency is getting more and more attention. Now some teams with business background will accelerate the development of virtual currency

namecoin

namecoin is a distributed domain name system based on bitcoin technology. Its principle is the same as bitcoin. The first release date of this open source software is April 18, 2011

namecoin is generated from an original block which is different from bitcoin's main trading block. It uses a new blockchain, which is independent of bitcoin's blockchain. Because it is based on bitcoin, the security, distribution, robustness, encryption and migration of domain names are guaranteed mathematically. You can dig bitcoin and namecoin at the same time

this project was discussed and proposed by bitdns, which is mainly dissatisfied with the defects of DNS. The only top-level domain name of namecoin is. Bit. It costs namecoin to register a. Bit domain name.
6. Digital currency is abbreviated as digiccy, which is the abbreviation of "digital currency" in English. It is an alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy

digital currency is an unregulated and digital currency, which is usually issued and managed by developers and accepted and used by members of a specific virtual community. The European Banking authority defines virtual currency as a digital representation of value, which is not issued by the central bank or authorities, nor linked with legal currency. However, because it is accepted by the public, it can be used as a means of payment, or it can be transferred, stored or traded in electronic form
response time: January 5, 2021. Please refer to the official website of Ping An Bank for the latest business changes
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7. Mining right contract

made by Changsha Bureau of land and resources

mining right contract

Article 1 both parties of this Contract:
transferor: Changsha Bureau of land and resources, Hunan Province, people's Republic of China
transferee:
according to the mineral resources law of the people's Republic of China, the Interim Provisions on the administration of mining right transfer, the According to the contract law of the people's Republic of China and other laws and regulations, both parties enter into this contract on the principle of equality, voluntariness, compensation and good faith
Article 2 the transferor transfers the mining right according to the authorization of the law, and the ownership of the mineral resources transferred belongs to the people's Republic of China. The state has jurisdiction and administrative power conferred by the Constitution and the law, as well as other powers exercised by the state in accordance with the laws of the people's Republic of China and rights and interests necessary for the interests of the public. The state ownership of mineral resources does not change with the land ownership or the right to use. The land use right attached to mineral resources does not belong to the scope of mining right transfer
Article 2 the mineral resources transferred to the transferee under this contract are located in
, and the inflection point coordinates of the mining area are shown in the annex for details, with the mining area of square kilometers and the mining depth of meter meter meter
Article 4 the main mineral species of the mineral resources transferred under this contract are: the mining method is mining, and the mining method is mining method< Article 5 the transferor agrees to deliver the transferred mineral resources to the transferee before (mm / DD / yyyy). According to the resource reserve evaluation report provided by the geological exploration unit, the transferred resource reserves under this contract are recoverable reserves tons
Article 6 according to the approved development and utilization plan of mineral resources and the mineral resources reserves within the mining scope, the service life of the transferred mine under this contract is years, and the proction scale of the mine is tons / year
Article 7 according to the relevant provisions on payment of mining right price, the price of the transferred mining right under this contract is RMB (in figures). Among them, yuan was handed over to the Provincial Department of land and resources; Turn over to Changsha Bureau of land and resources yuan; Turn in county (city)
yuan. However, the price of mining right stipulated in this contract does not include registration fee, mining right use fee and mineral resource compensation fee, and the transaction expenses of mining right have been dected
Article 8 the transferee agrees to pay the price of the mining right to the transferor in accordance with the provisions of paragraph () of this article, and pay it separately according to the amount determined by the transferor
(1) within days from the date of signing this contract, the above mining right price shall be paid in one lump sum
(2) pay the above mining right price to the transferor in installments according to the following time and amount
the first installment is RMB in words (in figures), and the payment time is before mm / DD / yyyy
the second installment of RMB in words (in figures), payment time: before mm / DD / yyyy
the third installment of RMB in words (in figures), payment time: before mm / DD / yyyy
the fourth installment of RMB in words (in figures), payment time: before (mm / DD / yyyy)
in case of policy adjustment, the new policy shall be implemented< Article 9 the grantee agrees to complete the infrastructure construction of the mine and start mining mineral resources before
if the mineral resources cannot be mined on schele, it shall be reported to the transferor in advance
Article 10 the grantee must organize proction in strict accordance with the mining area, mining types, proction scale, mining methods and mining methods specified in the approved plan for the development and utilization of mineral resources, so as to ensure the rational and effective utilization of mineral resources and the safe proction of the mine< Article 11 in case of any of the following circumstances ring the period of validity of the mining license, the transferee shall go through the change registration with the original license issuing authority:
(1) expand or narrow the scope of the mining area
(2) change of main mining minerals< (3) change of mining method< (4) change the name of mining enterprises
Article 12 the Grantee shall not transfer the mining right to another person for mining operation by means of contracting. If it is necessary to transfer the mining right, both parties to the transfer must apply to the original license issuing authority and go through the change registration proceres after examination and approval
Article 13 the transferee must take the initiative to accept the supervision and management of the transferor and submit the annual report to the transferor. If the grantee needs to continue mining after the expiration of the mining license, he shall apply to the original license issuing authority for registration of renewal 30 days before the expiration of the mining license
Article 14 in case of any potential safety hazard or damage to geological environment ring mining, the transferee shall immediately stop proction, report to the local people's government and relevant competent departments in time, and do a good job in rectification of potential safety hazard and treatment of geological environment
Article 15 the transferor shall not take back the mining right legally obtained by the transferee before the expiration of the service life stipulated in this contract. Under special circumstances, if the mining right needs to be withdrawn in advance according to the social and public interests, the transferor shall apply for approval in accordance with the legal proceres, and give corresponding compensation to the transferee
Article 16 Any party shall not be responsible for the partial or total failure to perform this contract e to force majeure, but shall take all necessary remedial measures to rece the losses caused by force majeure if conditions permit. If force majeure occurs after a party's delay in performance, he shall not be exempted from liability
Article 17 in case of force majeure, the party shall inform the other party of the event in written form such as letter, telegram, telex, fax, etc. within 48 hours, and submit to the other party a report on the reasons why the contract cannot be performed or partially cannot be performed or needs to be delayed within 3 days after the event< Article 18 the transferee must pay the price of the mining right on time in accordance with the contract. If the transferee fails to pay the price of the mining right on time, it shall pay the late fee to the transferor at the rate of 3 ‰ of the delayed payment every day from the date of late payment. If the delayed payment exceeds six months, the transferor has the right to terminate the contract and recover the mining right. The transferee has no right to ask for the return of the paid price, and the transferor can ask the transferee to compensate for other losses caused by breach of contract< Article 19 If the transferee pays the price of the mining right as agreed in the contract, the transferor must provide the mineral resources available for mining on time as agreed in the contract. If the mining right can not be provided for the reason of the transferor for more than six months, the transferee has the right to terminate the contract, the transferor shall double the paid price, and the transferee may request the transferor to compensate for other losses caused by the breach of contract
the transferor specially reminds us that the risk of mining investment is high, and what the transferor transfers on behalf of the state is the right of mining, so the scale, shape, reserves and grade of the ore body may be different from the actual mining, and the transferor will not bear any responsibility for this
Article 20 if the transferee violates the provisions of Articles 9, 10, 11, 12, 13 and 14 of the contract, the transferor has the right to terminate the contract and investigate the relevant legal liabilities of the transferee< Article 21 the conclusion, validity, interpretation, performance and dispute settlement of this contract shall be governed by the laws of the people's Republic of China< Article 22 this contract shall come into force from the date when the transferor issues the mining license to the transferee
Article 23 this contract is made in quadruplicate, with the same legal effect. The transferor and the transferee shall hold two copies respectively< Article 24 this contract is signed in Changsha Bureau of land and resources, Hunan Province, the people's Republic of China on
Article 25 matters not covered in this contract can be agreed by both parties as an appendix to the contract, which has the same legal effect as this contract< br />
8. The common transaction forms of digital currency are: currency transaction, that is, spot transaction. Futures trading, often referred to as contract trading. Options trading, like futures, is a kind of derivative tool, which is small and broad. At present, the most complete digital currency exchange in China is okex, and there are all three trading methods. You are satisfied with my answer. Take it
9. At present, the most famous is bitcoin. Then there is our digital RMB. In fact, according to different algorithms, in theory, there can be countless kinds of digital currency. The specific number of issues depends on the will of the issuing body.
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