DAPP and blockchain Wallet
What are dapps
there are too many blockchain applications such as Ethereum, Star Cloud chain, EOS and loom
What are the landing applications
bitcoin is a blockchain application of currency / assets; There is R3 alliance, which is used for bank settlement; Go to the central exchange; Blockchain games, as mentioned above, have been implemented. The most important landing scenario in the second half of 2018 is probably games
what special websites are there to learn about< br /> www.dappworld.com
this collection is comprehensive, including blockchain applications and games. There are Ethereum, Star Cloud chain, EOS, English version and Chinese version
www.stateofthedapps.com
contains Ethereum's blockchain applications.
ordinary investors and users can use wallets to achieve what needs
What do you think of when you think of wallet
1. Hot wallet, cold wallet, observation wallet—— Realize the most basic function of a wallet: storage
2. DAPP entry of different public chains—— The entrances of the coin holders to the dapps of the public chains
3. Flash cash, direct trading in the exchange and cash out—— The transaction and Realization of digital assets
4. Pay attention to the market information to understand the currency price
Yes, some blockchain wallets have been implemented. It makes people feel like "a small purse, a big world". The actions that users want to complete in the blockchain world can be basically solved in their wallets
take the tokenpocket wallet that I often use as an example< How to understand hot wallet, cold wallet and observation wallet
Hot Wallet: Online wallet, online wallet. It is convenient to withdraw money. You can also check the wallet assets, balance and transaction records at any time
cold Wallet: it's an offline wallet. Since it's offline and not connected to the Internet, how can I realize it when I need to transfer money or withdraw money? Just watch your wallet
observe Wallet: a wallet that observes the assets of a cold wallet and assists in withdrawing the cold wallet's assets< Second, TP SDK integrates Tron
the latest version of TP SDK now supports Tron, that is to say, when the independent DAPP on the wave field public chain is connected to the tokenpocket SDK, it can realize the operation of Tron authorization login, data signature, token transfer, transaction signature, etc
in this way, the development of Tron independent DAPP is greatly accelerated
Third, asset collection function
we usually have such a phenomenon: everyone has multiple accounts, and these accounts have the same token. If you want to collect the same asset on these different accounts, you need the asset collection function
there is a problem: if the passwords of all your accounts are the same, you can authorize them once. If the passwords are different, you need to authorize each time
note: please do not close or exit the collection interface before the completion of the collection operation to prevent errors
Fourth, experience the colorful DAPP on each public chain
in the TP interface, select the Tron category to enter the Tron DAPP page. Play all kinds of DAPP, or enter other public chains, such as EOS, Jingtong, etc
there are more functions in the wallet, waiting for further exploration.
first of all, it must be pointed out that the relationship between DAPP and app is not the relationship between who replaces who or who eliminates who, but the coexistence relationship, or DAPP is the enrichment and improvement of app< Secondly, DAPP is the proct of the development of the times and the progress of science and technology
because DAPP is directly linked to blockchain technology, it is associated with transaction data, transaction assets, and tamperable decentralized storage< In his book decentralized applications, Johnston believes that a DAPP application should meet all the following conditions:
1. An application must be completely open source, autonomous, and no entity controls most of its tokens. The application must be able to upgrade according to the market feedback and technical requirements, but the upgrade can only be carried out after the application users reach a consensus< Second, the application data must be encrypted and stored on the public blockchain
3. The application must have a token mechanism (it can use the existing token or issue a new built-in token), and the miner or application maintenance node needs to get token reward
fourthly, the generation of application token must be based on the standard encryption algorithm, and valuable nodes can get the token reward of the application according to the algorithm
in short, an application running on the public chain in the form of smart contract can be called DAPP. Different from the conventional app, DAPP's logic (source code), stored proceres and stored results are open and transparent, and can't tamper with the storage logic and content< At present, dapps meeting the above conditions include the following categories:
content dapps -
the coupling between blockchain and content vertical field is very good. Using the characteristics and technology of blockchain, there are more and more platforms to do content, and the competition on this track is extremely fierce, such as steemit abroad, currency, Primas, fulcrum, Youxiang, etc Pressone et al<
DAPP for games -
such as the "blockchain cat raising" incident, which was very popular last year. In this game, players can buy, sell and breed different kinds of kittens. The popularity of this game even caused serious congestion of Ethereum network. Now the blockchain game is not limited to the Buddhist pet game, other blockchain Gobang, drifting bottle, card games and so on
with the development of the times and the more mature and popular blockchain technology, DAPP will be paid more and more attention, and more and more dapps will appear in various scenes of life.
DAPP is the abbreviation of Chinese distributed app for decentralized application
a DAPP has background code running in a distributed peer-to-peer network. The background code of traditional app is running on the centralized server
the front-end code of a DAPP can be developed by any language, just like the traditional app. In addition, DAPP's front-end code can be hosted in distributed storage services, such as swarm or IPFs
If an application = front end + back end, because Ethereum contract is composed of code running in Ethereum distributed point-to-point network, distributed application = front end + contract
the picture shows a DAPP architecture:
app we all know that it is a client application, which is the abbreviation of application. DAPP is d + app, and D is the first letter of English word decentralization. Chinese word translation is decentralization, that is DAPP is decentralized application. This is to understand the concept literally. To form a clear, accurate and necessary concept in the brain, we need to understand DAPP in depth
compared with app, the biggest difference between them is centralization and decentralization. App needs money first, so it needs financing first; Then there will be more people, so we will develop and operate after recruiting all the people. DAPP is the proct of inheriting traditional app and combining the characteristics of blockchain, which is more like crowdfunding mode, sharing mode and decentralization mode
DAPP can run on a centralized server that can interact with Ethereum nodes, or on any Ethereum node. Different from ordinary websites, DAPP can't run on ordinary servers. They need to submit transactions to the blockchain and read important data from the blockchain instead of the centralized database.
here is a very straightforward way to explain DAPP, that is: take out the app that we currently develop relying on IOS and Android system, throw it on the blockchain system, and combine with the smart contract, it becomes DAPP.