How to use blackfish power bank blockchain
In fact, the application mode of blockchain cross-border payment is to use blockchain network to join traditional financial institutions, foreign exchange market makers and liquidity providers into the payment network and build a payment gateway. Through the payment gateway, the flow of digital assets on the blockchain can be connected with the legal currency in reality, so that the legal currency can be converted into digital assets on the blockchain, which is convenient for subsequent payment and transfer. Through the network connector in the blockchain payment network, we can connect traditional market makers, remittance agencies, remittance agencies and other institutions, abandon the intermediate transaction link, and realize point-to-point fast and low-cost payment
imapp2.0 version of blockchain application center has been officially launched. Imapp is the world's first blockchain app store with universal dividends, which aims to create a super entrance to the blockchain instry and make it easier for users to use blockchain applications. The interface of imapp 2.0 is more concise and beautiful, the function adds news and DAPP, and the content enriches the guessing game. Through imapp, users can browse, forward, download, update and open the application to obtain imapp ecological token IA. The official imapp has reached a strategic cooperation with the bitcoin diamond foundation. Ecocard ia can exchange bitcoin diamond BCD at a certain proportion.
In the traditional supply chain finance, financing difficulty, high financing cost and cumbersome financing process have always been one of the bottlenecks restricting small and medium-sized enterprises to become bigger and stronger. Banks rely on the ability of core enterprises to control goods and regulate sales. For the sake of risk control, banks are only willing to provide factoring services to upstream suppliers (limited to first tier suppliers) with direct accounts payable obligations of core enterprises, or provide prepayment or inventory financing to their downstream distributors (first tier suppliers). As a result, the demand of secondary and tertiary suppliers / distributors with huge financing demand can not be met, the business volume of supply chain finance is limited, and the small and medium-sized enterprises can not get timely financing, which will easily lead to proct quality problems and damage the whole supply chain system
to solve these problems, we can make use of the characteristics of decentralized, tamper proof and distributed ledger of blockchain technology to build a blockchain supply chain financial platform
The core enterprise issues a / R certificate to the distributor. After the distributor signs the receipt, it indicates that it has signed the purchase and sales contract and the core enterprise delivers the goods Because of the shortage of funds, distributors need to borrow money from finance3. After the financial institutions have approved, the amount of loans will be sent to the core enterprises
The distributor will repay the loan and interest after selling the goodsThe term "smart contract" can be traced back to at least 1995 and was proposed by the prolific interdisciplinary legal scholar Nick Szabo. He mentioned the concept of smart contract in several articles published on his website. His definition is as follows:
"a smart contract is a set of promises defined in digital form, including the agreements on which the contract participants can implement these commitments."
Let's explore the meaning of his definition in more detailcommitment
a set of commitments refers to the (often mutual) rights and obligations agreed by contract participants. These commitments define the nature and purpose of the contract. Take a sales contract as a typical example. The seller promises to deliver the goods and the buyer promises to pay a reasonable price
digital form
digital form means that contracts have to be written into computer-readable code. This is necessary, because as long as the participants reach an agreement, the rights and obligations of smart contract establishment are executed by a computer or computer network
(1) when will the parties to the smart contract reach an agreement? The answer depends on the specific smart contract implementation. Generally speaking, the contract is discovered when the parties are committed to the execution of the contract by installing the contract on the contract host platform (2) the real meaning of "execution" also depends on implementation. Generally speaking, implementation means active implementation through technical means(3) computer readable code
in addition, the specific "digital form" required by the contract is very dependent on the agreement that the parties agree to use
protocol
protocol is technical implementation, on this basis, the contract commitment is realized, or the contract commitment is recorded. Which agreement to choose depends on many factors, the most important of which is the nature of the assets being traded ring the performance of the contract
again, take the sales contract as an example. Suppose that the participants agree to pay in bitcoin. The chosen protocol will obviously be bitcoin protocol, on which the smart contract will be implemented. Therefore, the "digital form" that the contract must use is bitcoin scripting language. Bitcoin scripting language is a non Turing complete, imperative, stack based programming language, similar to forth
smart contract
the Xueshuo innovation blockchain Technology Workstation of Lianqiao ecation online is the only approved" blockchain technology professional "pilot workstation of" smart learning workshop 2020 Xueshuo innovation workstation "launched by the school planning, construction and Development Center of the Ministry of ecation of China. Based on providing diversified growth paths for students, the professional station promotes the reform of the training mode of the combination of professional degree research, proction, learning and research, and constructs the applied and compound talent training system
Through the deep use of cryptography algorithm, specially designed data structure and multi-party consensus algorithm, blockchain uses machine algorithm to solve the consistency, reliable storage and anti tampering problems of multi-party transaction records, which has a natural strong correlation with electronic data storage
at present, the electronic contract signed on the advanced electronic contract platform has realized the distributed storage of digital fingerprints of electronic documents through the blockchain technology, which further strengthens the legal effect of the platform electronic contract