Blockchain gold chain

1.

From the current mainstream blockchain projects, blockchain projects are mainly divided into four categories: the first category: currency; The second is platform; The third category: application category; The fourth type: asset token

currencies mainly act as the "exchange media" in the field of blockchain assets, and the exchange media refer to general equivalents, such as gold and silver bills in the past< (currency exchange on trading blockchain assets)

platform projects refer to the establishment of technical platforms to meet the needs of various blockchain application development, which can rece the threshold of application development on blockchain

application projects cover a wide range of fields, including finance, social networking, games, property rights protection, etc., and are also the fastest growing fields of blockchain assets

asset token project refers to the blockchain mapping of physical assets, that is, the physical assets on the chain. At present, there are no more than 10 varieties

01 currency

the first category is currency project, which is also the earliest blockchain project. Currency projects mainly include bitcoin and lightcoin. In addition, there is another kind of asset with the characteristics of anonymity. Its main functions include protecting the privacy of both sides of payment while realizing payment. The well-known ones are dash, monero and zcash. Currency is mainly used as the "exchange medium" in the field of blockchain assets. The exchange medium is the general equivalent you use to exchange goods. For example, gold, silver and silver bills can be used as the exchange medium in the past. At present, there are more than 2100 types of digital assets in the world, and the number of currency blockchain projects has increased rapidly recently. As of June 2018, bitcoin is still the largest market value

02 platform type

the second type is platform type blockchain project. The main function of platform type blockchain project is to establish a technical platform to meet the technical requirements of various blockchain application development; In short, platform applications allow developers to directly issue digital assets and write smart contracts on the blockchain. Smart contract is a computer program running on the blockchain database, which can be automatically executed under the conditions of its source code setting

for example, you develop a smart contract based on the house rent protocol on the blockchain. When the owner receives the rent, it will trigger the automatic execution and give the security key of the apartment to the tenant

the main function of platform blockchain projects is to establish the underlying technology platform, so that developers can do application development on the underlying technology platform. A considerable number of platforms are still in the development state. As of June 2018, Ethereum has the largest market value

03 application

the third category is application blockchain projects. Application projects are blockchain projects based on blockchain development platform (such as Ethereum), which can solve many problems in various fields of the real economy

for example, augur, Golem, vechain, omisego, which provides asset exchange and transfer services. Using blockchain technology, these projects can better solve the problems of trust and cross-border circulation. At the same time, using smart contracts and tokens on the blockchain, they can better realize automatic execution and greatly improve the efficiency of social and economic activities. Application blockchain projects cover a wide range of fields, including finance, social networking, games, property rights protection and so on. It is also the field with the fastest market value increment of blockchain projects at present

04 asset token

the fourth category is the asset token blockchain project. Asset token refers to linking the blockchain assets to physical assets such as gold and US dollars, which is the blockchain mapping of physical assets. As of February 2018, there are no more than 10 varieties. The typical representatives are usdt against US dollars, digix Dao against gold, Digix each token represents 1 gram of Gold Certified by the London Bullion Market Association. Asset token has the advantages of convenient transaction and safekeeping. First of all, asset token is more convenient for transaction. Because blockchain assets can be split, it has better liquidity

for example, at present, real estate needs to be transferred as a whole. If the real estate can be token, it can be split and purchased, which is more convenient for transaction. Secondly, the token of physical assets is more concive to custody. Gold is easy to wear out and cause losses in physical transactions, but there is no need for physical transfer after the token of physical assets, which is more concive to the custody of physical assets

2.

It's worth it

the blockchain system is jointly maintained by all of us, and it does not need to specially consume human and material resources. The decentralized structure greatly reces the cost. At the same time, the disclosure of data makes it almost impossible to make false accounts. Blockchain takes mathematical algorithm as endorsement, and its rules are based on an open and transparent mathematical algorithm, which can enable people with different political and cultural backgrounds to reach consensus and realize cross regional mutual trust

in addition to building a monetary system, blockchain also has many application opportunities in the pan financial field. Based on the programmable characteristics of blockchain, people try to add smart contract to blockchain system to form programmable finance, which is represented by smart contract

extended data:

precautions:

the effective behaviors of users on the platform, such as consumption behaviors, are recorded on the blockchain. While confirming the rights, corresponding data rights and interests are allocated to users. OLO can be used not only to exchange goods and services in the whole ecosystem, but also to exchange with other mainstream digital currencies for cash. Such an incentive will encourage users to contribute more valuable data

small and medium-sized enterprises join the ecosystem through API interface, and use OLO to buy big users, big data and large traffic, so as to realize precision marketing and expand the scale of enterprises. In the whole process, user data is desensitized, so there is no need to worry about privacy leakage. Finally, a big data trading platform with shared interests and value appreciation between users and enterprises is built to bridge the business model gap between users and enterprises

as a token backed by data assets, OLO represents the value of the continuous precipitation of big data. The more precipitation of data, the more valuable it is, so OLO itself has value

3. This is a project of Guotian group. It seems to be a blockchain project based on Bubi. You can learn about it on their official website.

4.

Blockchain 4.0 is the landing of a large number of scene applications and the deep integration of multiple fields, such as blockchain plus artificial intelligence, supercomputing, big data, etc., which requires and promotes the upgrading of the underlying infrastructure construction, greatly improves its inclusiveness, carrying capacity and scalability, builds its solid ecological network system, and makes the blockchain value network radiate more scenes, Value is more reflected. The block chain structure is as follows:

as a new generation of public chain, SPG super gold puts forward its own innovation on the basis of absorbing the advantages of public chain in the past. Considering that Neo has its own unique advantages in solving the problems of low scalability, low concurrency and low transaction feedback of the public chain, and has achieved practical results, at the same time, in the super gold cryptocurrency SPG generation mode, it prefers the mining output mode under the more decentralized workload proof mechanism, Therefore, super gold creatively launched a two-tier structure combining transaction verification with Ethereum workload proof algorithm ethash, which separated transaction verification and block packaging synchronization, so as to better solve the problems of low scalability, low concurrency, low transaction feedback and block congestion of blockchain, At the same time, the smart contract system of super gold is more suitable for the development trend of current blockchain technology. The support of cross chain protocol for cross chain transaction can help build a public chain platform with higher universality, wider application range and more prosperous and stable ecology. Therefore, SPG super gold can be classified as blockchain 4.0 array

5. The gold token issued by digix is the gold in the digital asset world. It is a typical representative of asset token project. How can it be linked with gold
gold is the best choice for risk aversion. The gold token issued by digix is the gold in the world of digital assets, and its token, DGX for short, can play a role of hedging in the world of digital assets
How can DGX benchmark gold? It will be gold assets on the chain (that is: blockchain) operation. For example, if you have a kilogram of gold ready for sale, you can cut the gold for sale, but it is too troublesome and easy to cause loss. You can also send 1kg of gold to Singapore for LBMA to verify the gold. After the verification, the certificate of ownership of gold assets will be issued to you
the digital certificate can be converted into 1000 DGX tokens, i.e. 1 DGX token = 1 gram of gold. The circulation efficiency of gold has been greatly improved. Similarly, when you need to extract gold, as long as you have the corresponding token, you can replace it with a certificate to extract gold.

6. Like these virtual currencies are g with desktop graphics cards. But people use a miner, that is, more than a dozen and hundreds of graphics cards are g together. It's very slow to dig a single video card. It may not be enough to pay back the electricity bill.