EA040345B1 - METHOD FOR SETTLEMENTS FOR TRANSACTIONS BETWEEN LEGAL ENTITIES USING DISTRIBUTED REGISTER TECHNOLOGY - Google Patents

Description

Technical field

This technical solution relates to the field of computer technology, in particular to methods for performing transactions between legal entities (LEs) using distributed ledger technology.

State of the art

The use of distributed registry technology or blockchain technology is currently widespread in various fields of activity, in particular, in the financial sector when performing various kinds of transactions. An existing problem for making payments between legal entities is the need for control and confirmation of the transaction by the bank, in order to ensure the validity of the transaction and the possibility of exchanging digital assets - tokens for cash.

From the patent application US 20180268382 A1 (Wasserman S., 09/20/2018), a system is known for performing calculations using blockchain technology in a corporate environment. The essence of the solution lies in the formation of digital assets by a single trusted node, which ensures the process of their circulation between banks and persons - clients of banks through the formation of smart contracts in a specialized access channel.

The disadvantages of the known solution is the complexity of the implementation of transactional operations, which is characterized by the need to form trusted access channels for transactions. Also, this solution does not allow the execution of a transaction within a single atomic operation, since it does not contain a single entry point for clients' requests, which will manage their current accounts, the movement of digital assets and their exchange for cash.

The essence of the invention

The claimed invention is aimed at solving the existing technical problem for fast and trusted execution of transactional operations between legal entities using a distributed ledger.

The technical result is to ensure the efficient and secure execution of digital transactions between legal entities in a distributed registry with transaction verification by the bank, by signing a transaction between the parties in a private data transmission channel, subsequent publication of the signed transaction in a public distributed registry and exchanging digital tokens for cash through bank node.

The claimed result is achieved due to a computer-implemented method of making settlements for transactions between legal entities (LEs) using a distributed ledger technology, which contains the steps at which the bank accounts of the LEs are linked to the bank's digital token generating facility; form a unique ID for each legal entity; initiating the formation of a transaction between the legal entity, the buyer and the seller, using computing devices connected by a data transmission network, while using the mentioned means of generating digital tokens of the bank, the issuance of digital tokens corresponding to the obligations of each of the parties to the transaction, each token contains a unique ID and is associated with the public key of its owner, while for the token of the legal entity of the buyer, using the bank’s device, funds are reserved in the bank account and the legal entity is transferred to the buyer’s device on his device with a message signed by the bank’s EDS and containing the ID of the token and the amount of the reserved funds; form a digital contract for the execution of the transaction, including at least the ID of the contract, the ID of the legal entity - the parties to the transaction and the ID of the tokens to be exchanged within the said transaction; perform the acceptance of the transaction by the parties, during which the legal entity the buyer transmits via a private data channel to the device of the legal entity of the seller the said message received from the bank device; The seller sends the legal entity the token ID corresponding to its obligation under the transaction and a message confirming the parameters of this token via a private data transfer channel to the device of the legal entity of the buyer; carry out the formation of a transaction for the execution of the said digital contract, while the legal entity of the buyer signs the transaction using an EDS and transfers the signed contract via a private data channel to the device of the legal entity of the seller; The legal entity the seller signs the said EDS transaction; transfer the signed transaction to a public distributed ledger; carry out a change in the ID of the legal entity of token owners in a digital document accepted by the parties and form a record of the fact of the transaction in the public distributed registry; initiate a request using the device of the legal entity of the seller for the transfer of tokens into cash; receive a request on the bank device, process the request and send the reserved funds to the bank account of the legal entity of the seller.

In one of the examples of the implementation of the method, a digital contract is formed on the device of the legal entity of the buyer.

In another example of the implementation of the method, the private data transmission channel is a closed distributed ledger.

In another example of the implementation of the method, the formation of the transaction is carried out on the device of the legal entity of the seller or the device of the legal entity of the buyer.

In another example of the implementation of the method, the transfer of a signed transaction to a public distributed ledger is carried out from the device of the legal entity of the buyer or the device of the legal entity of the seller.

In another example of the implementation of the method, the message confirming the parameters of this token contains data identifying the subject of the transaction.

Brief description of the drawings

Fig. 1 illustrates the implementation scheme of the claimed method.

Fig. 2 illustrates an example of a token.

Fig. 3 illustrates the process of step-by-step execution of a transaction between legal entities.

Fig. 4 illustrates a general view of the computing device.

Implementation of the invention

In FIG. 1 shows a general scheme (100) of the implementation of the claimed invention. To implement the claimed method, a connected network of computing devices used to perform a transactional exchange is used, in particular, a bank device (110), for example, a server containing a means for generating digital tokens (111), a buyer's legal entity device (120) and a seller's legal entity device (120 ).

Devices LE (120, 130) are connected via a public data network, such as the Internet, with the bank server (110). At the same time, devices (110, 120, 130) are also combined by a public distributed registry, for example, a blockchain network based on Hyperledger Fabric technology or another type of blockchain protocol.

The devices (120, 130) also communicate on a private data link (140) that is not connected to a public network. Such a channel can be, for example, a closed distributed ledger (blockchain network), intranet, etc.

The bank device (110) provides for linking the bank accounts of legal entities (120, 130) opened with the bank to the token generating facility (111) for reserving funds on the respective bank accounts and generating digital tokens in cash equivalent. A token means frozen funds in a specific bank account intended for settlements in the blockchain network. Thus, the client - legal entity can manage his funds only in one of the spaces: blockchain or real, which does not lead to the issue of funds, tokens or other monetary surrogates.

A bank account can be understood as a settlement account of one of the participants in the transaction, or a separate bank account intended for transactional actions.

Due to current legal requirements and the lack of a sufficient legal framework for regulating digital assets and stablecoins, there is a need to mirror transactions made by clients using tokens. To determine the subject of the transaction (the future purpose of the payment), the client reserves in advance the required amount of tokens for the transaction (digital banknote). A digital banknote has a unique number, owner, issuer and denomination. The digital banknote is transferred to the seller at the time of the transaction.

The fact of the transfer of a digital banknote is recorded using a transaction in the public space of the blockchain network of transfer of rights with the obligatory signature of the seller, proving the transfer of rights. The transaction itself, as a joint development of a transaction signed by both parties, can be carried out both outside the public network (offchain), and in a private channel of the blockchain network or in another blockchain network, which does not contradict the designed architecture and the principle of implementation of the present invention.

Due to the fact that transactions are carried out atomically in the public information space, the use of digital banknotes with a hidden denomination allows you to keep a trade secret. In fact, the bill is an analogue of Output in the UTXO model. The current owner of the note can be hidden by using a one-time key pair, if required.

The key feature of the solution is the presence of a publicly verified fact of ownership of a digital asset - a digital bill of a predetermined denomination. The current owner can always confirm the fact of ownership by presenting a signature for an arbitrary data set.

The token registry (150) is a layer of the network that stores the identifiers (ID) of the tokens and the corresponding public keys of the owner of the tokens in the distributed registry. This layer keeps track of all tokens. The specified layer is a single common channel to which all network members are connected. At the same time, both participants and tokens are anonymized to ensure data confidentiality. An example of a token registry entry is shown in Table. 1.

Table 1. Token registry entry

Name Type Description ID Line Unique token ID Owner bytes Public key corresponding to the owner's private key

In FIG. 2 shows an example of a digital token (20) that is generated by means (111) to effect a transaction between parties (120, 130). Each token (20) contains a unique ID, type, content and signature. The content of the token refers to the data confirming the subject of the transaction, for example, the currency, the amount of the monetary equivalent, the description of the goods, etc. Content of the token

- 2 040345 is formed in advance and during the transaction by the parties (120, 130).

Each token (20) is unique and recorded in the registry (150) when it is generated, which allows you to associate the token (20) by its ID with the owner and issuer, for example, a bank, due to which you can always check the validity of the token by its public key of the issuer sides.

In table. 2 shows an example of a token type record.

Table 2. Type of token

Name Type Description Type ID Line Unique Type ID Issuer ID Line ID of the issuing party generating the token Issuing public key Byte The public key corresponding to the private key for signing the token of this type

In FIG. 3 shows the general sequence of steps for performing the declared method for executing transactions between legal entities (120, 130). At step (301), a request is made for a reserve of tokens (20) corresponding to the monetary equivalent in the bank account of the legal entity of the buyer (120). To perform this procedure, the accounts of the legal entity (120, 130) are linked to the means for generating bank digital tokens (111). Next, for each legal entity (120, 130) a unique ID is generated and at step (302) tokens are generated, information about which is transmitted to the computing device of the legal entity (120). The tokens can be sent to the digital wallet installed on the device (120), with the help of which the legal entity the buyer initiates this request.

As mentioned above, each token contains a unique ID and is signed with the public key of the issuing party to confirm authenticity, after reserving funds on the bank account of the legal entity of the buyer (120), a message is sent to his device, signed by the bank's EDS, which includes the token ID and the amount of the reserved funds.

At step (303), the formation of a transaction between legal entities (120, 130) is carried out. The formation of the transaction can occur when one of the parties requests a service or product, for example, through an Internet portal located on the node (server) of the bank (110).

Such a portal can be an interactive showcase with a choice of various options for purchasing goods and services. Also, the transaction can be initiated directly between the parties (120, 130), each of the parties separately.

With the help of the bank's digital token generating facility (111), digital tokens are issued corresponding to the obligations of each of the parties to the transaction (120, 130).

When a transaction is initiated by one of the parties, for example, a legal entity by a buyer (120), using its computing device, a request is generated for the provision of a digital token of a product (service) by the legal entity of the seller (130). Such a token contains the cost of the product/service, information about the product and the address of the public key of the owner (legal entity of the seller). In response to this request, at step (304) LE, the seller (130) sends to the device LE of the buyer (120) a token containing the cost of the product/service, ID and information related to the product/service being purchased. Such information can be any type of data that makes it possible to identify the subject of a transaction between legal entities (120, 130).

At step (305), a digital contract is formed to secure a transaction between legal entities (120, 130). The digital contract contains the ID of the contract, the ID of the legal entity - the parties to the transaction and the ID of the tokens to be exchanged within the framework of the said transaction. Initially, this contract is signed by the EDS of the legal entity of the buyer (120) on his device and then at step (306) it is transmitted via a private data channel to the device of the legal entity of the seller (130). Upon receipt on the seller’s device (130) of the digital contract signed by the seller’s (120) EDS of the legal entity, at stage (307) on the seller’s device (130), the legal entity of the seller (130) generates a transaction for the execution of the said digital contract, during which the contract is verified and it is signed with the seller’s EDS of the legal entity (130).

At step (308), the signed transaction of the digital contract is transferred to a public distributed ledger (blockchain network). Despite the example shown in FIG. 3, a transaction signed by the parties (120, 130) in the form of a digital contract can be sent to a public distributed registry from any of the devices of the party, both the buyer (120) and the seller (130).

When a transaction is published in the public registry, the ID of the legal entity of the token owners is changed in the digital document accepted by the parties, and a record is formed about the fact of the transaction in the public blockchain network. The device of the legal entity of the seller (130) generates a request at step (309) for the transfer of tokens into cash. This request is processed by the bank node (110) and, as a result, the reserved funds are sent in the received token from the legal entity of the buyer (120) to the bank account of the legal entity of the seller (130).

Based on the above method of transactions (300), a new and effective possibility of settlements between legal entities and settlements on the part of a financial organization (bank) is implemented, with an adequate degree of protection through the use of distributed ledger technology.

In FIG. 4 is a general view of the computing device (400). On the basis of the device (400), any of the LE devices (120, 130), a server and another type of device that provides computer processing of the data necessary to implement the claimed method can be implemented.

In the general case, the computing device (400) contains one or more processors (401) connected by a common information exchange bus, memory means such as RAM (402) and ROM (403), input/output interfaces (404), input/output devices (405), and a device for networking (406).

The processor (401) (or multiple processors, multi-core processor) may be selected from a variety of devices currently widely used, such as Intel™, AMD™, Apple™, Samsung Exynos™, MediaTEK™, Qualcomm Snapdragon™, etc. . The processor (401) may also include a graphics processor or work in conjunction with a graphics accelerator, for example, Nvidia, AMD Radeon, etc., which can be used to perform computational operations when executing machine learning algorithms.

RAM (402) is a random access memory and is designed to store machine-readable instructions executable by the processor (401) to perform the necessary data logical processing operations. The RAM (402) typically contains the executable instructions of the operating system and associated software components (applications, program modules, etc.).

The ROM (403) is one or more persistent storage devices, such as a hard disk drive (HDD), a solid state data drive (SSD), flash memory (EEPROM, NAND, etc.), optical storage media (CD-R /RW, DVD-R/RW, BlueRay Disc, MD), etc.

Various types of I/O interfaces (404) are used to organize the operation of device components (400) and organize the operation of external connected devices. The choice of appropriate interfaces depends on the particular design of the computing device, which can be, but not limited to: PCI, AGP, PS/2, IrDa, FireWire, LPT, COM, SATA, IDE, Lightning, USB (2.0, 3.0, 3.1, micro, mini, type C), TRS/Audio jack (2.5, 3.5, 6.35), HDMI, DVI, VGA, Display Port, RJ45, RS232, etc.

To ensure user interaction with the computing device (400), various means (405) of I/O information are used, for example, a keyboard, a display (monitor), a touch screen, a touchpad, a joystick, a mouse, a light pen, a stylus, a touchpad, trackball, speakers, microphone, augmented reality tools, optical sensors, tablet, indicator lights, projector, camera, biometric identification tools (retinal scanner, fingerprint scanner, voice recognition module), etc.

The networking means (406) enables data communication by the device (400) via an internal or external computer network, such as an Intranet, Internet, LAN, and the like. As one or more means (406) can be used, but not limited to: Ethernet card, GSM modem, GPRS modem, LTE modem, 5G modem, satellite communication module, NFC module, Bluetooth and / or BLE module, Wi-Fi module and others

Additionally, satellite navigation tools within the device (400) can also be used, for example, GPS, GLONASS, BeiDou, Galileo.

The submitted application materials disclose preferred examples of the implementation of the technical solution and should not be interpreted as limiting other, particular examples of its implementation that do not go beyond the scope of the requested legal protection, which are obvious to specialists in the relevant field of technology.

Claims (6)

CLAIM 1. A computer-implemented method for making settlements on transactions between legal entities (LE) using distributed ledger technology, containing the steps at which the bank accounts of the LE are linked to the bank's digital token generating facility; form a unique ID for each legal entity; initiating the formation of a transaction between the legal entity, the buyer and the seller, using computing devices connected by a data transmission network, while using the mentioned means of generating digital tokens of the bank, the issuance of digital tokens corresponding to the obligations of each of the parties to the transaction, each token contains a unique ID and is associated with the public key of its owner, while for the token of the legal entity of the buyer, using the bank’s device, funds are reserved in the bank account and the legal entity is transferred to the buyer’s device on his device with a message signed by the bank’s EDS and containing the ID of the token and the amount of the reserved funds; form a digital contract for the execution of the transaction, including at least the ID of the contract, the ID of the legal entity - the parties to the transaction and the ID of the tokens to be exchanged within the said transaction; carry out the acceptance of the transaction by the parties, during which The legal entity the buyer transmits via a private data transmission channel to the device of the legal entity of the seller the mentioned message received from the bank device; - 4 040345 The seller sends the legal entity the token ID corresponding to its obligation under the transaction and a message confirming the parameters of this token via a private data transfer channel to the device of the legal entity of the buyer; carry out the formation of a transaction for the execution of the said digital contract, while The legal entity the buyer signs the transaction using an EDS and transfers the signed contract via a private data transmission channel to the device of the seller's legal entity; The legal entity the seller signs the said EDS transaction; transfer the signed transaction to a public distributed ledger; carry out a change in the ID of the legal entity of token owners in a digital document accepted by the parties and form a record of the fact of the transaction in the public distributed registry; initiate a request using the device of the legal entity of the seller for the transfer of tokens into cash; receive a request on the bank device, process the request and send the reserved funds to the bank account of the legal entity of the seller. 2. The method according to claim 1, characterized in that the digital contract is formed on the device of the legal entity of the buyer. 3. The method according to claim 1, characterized in that the private data transmission channel is a closed distributed ledger. 4. The method according to claim 1, characterized in that the formation of the transaction is carried out on the device of the legal entity of the seller or the device of the legal entity of the buyer. 5. The method according to claim 1, characterized in that the transfer of the signed transaction to the public distributed registry is carried out from the device of the legal entity of the buyer or the device of the legal entity of the seller. 6. The method according to claim 1, characterized in that the message confirming the parameters of this token contains data identifying the subject of the transaction. Fig. 1