# US 2020/0402091 A1 · Method for automatically providing cryptocurrency to recommender using propagation on sns

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- Number: US 2020/0402091 A1
- Document ID: US20200402091A1
- Status: Published application
- Kind: A1
- Application number: 17/010,797
- Filed: 2020-09-02
- Published: 2020-12-24
- Earliest claimed: 2018-06-19
- Inventors: Sang Mi RYU
- Web page: https://patentgrep.com/patent/US20200402091A1

## CPC

- G06Q 10/40: Business processes related to social networking or social networking services
- G06Q 20/02: involving a neutral party, e.g. certification authority, notary or trusted third party [TTP]
- G06Q 20/065: {using e-cash}
- G06Q 20/0655: {e-cash managed centrally}
- G06Q 20/12: specially adapted for electronic shopping systems
- G06Q 20/223: {based on the use of peer-to-peer networks}
- G06Q 20/36: using electronic wallets or electronic money safes
- G06Q 20/38215: {Use of certificates or encrypted proofs of transaction rights}
- G06Q 20/3827: {Use of message hashing}
- G06Q 20/3829: {involving key management}
- G06Q 20/384: {using social networks}
- G06Q 20/389: {Keeping log of transactions for guaranteeing non-repudiation of a transaction}
- G06Q 30/0214: Referral reward systems
- G06Q 30/0215: {Including financial accounts}
- G06Q 30/0236: {Incentive or reward received by requiring registration or ID from user}
- G06Q 40/04: Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
- H04L 9/0637: {Modes of operation, e.g. cipher block chaining [CBC], electronic codebook [ECB] or Galois/counter mode [GCM]}
- H04L 9/3239: {involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD}
- H04L 63/12: {Applying verification of the received information (cryptographic mechanisms or cryptographic arrangements for data integrity or data verification H04L9/32)}
- G06Q 20/3678: {e-cash details, e.g. blinded, divisible or detecting double spending}
- G06Q 2220/00: Business processing using cryptography
- H04L 9/50: {using hash chains, e.g. blockchains or hash trees}
- H04L 2209/56: Financial cryptography, e.g. electronic payment or e-cash
- H04L 2463/102: applying security measure for e-commerce
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

According to an embodiment, a method for automatically providing a cryptocurrency to a recommender using social networking service (SNS) propagation comprises a recommending step in which a blockchain membership node of a member having membership in a proof-of-expansion (PoX) blockchain platform server recommends an identity (ID) of an SNS friend of the member to the PoX blockchain platform server, a registering step in which the PoX blockchain platform server newly registers the ID of the SNS friend as a blockchain membership node, and a reward rate determining step in which the PoX blockchain platform server determines a reward rate for each blockchain member in association with the number of SNS friend IDs that the blockchain member recommends.

## Claims

### Claim 1

A method for automatically providing a cryptocurrency to a recommender using social networking service (SNS) propagation, the method comprising:
a recommending step in which a blockchain membership node of a member having membership in a proof-of-expansion (PoX) blockchain platform server recommends an identity (ID) of an SNS friend of the member to the PoX blockchain platform server;
a registering step in which the PoX blockchain platform server newly registers the ID of the SNS friend as a blockchain membership node; and
a reward rate determining step in which the PoX blockchain platform server determines a reward rate for each blockchain member in association with the number of SNS friend IDs that the blockchain member recommends.

### Claim 2 (depends on 1)

The method of claim 1, further comprising a rewarding step in which the PoX blockchain platform server rewards each blockchain member with a cryptocurrency as per the determined reward rate.

### Claim 3 (depends on 1)

The method of claim 1, wherein the reward rate determining step comprises a step for determining a membership grade of the recommending blockchain member depending on the number of SNS friend IDs that the blockchain member node recommends and a step for determining the reward rate for the blockchain member depending on the determined membership grade.

### Claim 4 (depends on 3)

The method of claim 3, wherein as the number of the SNS friend IDs that the blockchain member node recommends increases, the membership grade of the recommending blockchain member increases.

### Claim 5 (depends on 3)

The method of claim 3, wherein when a first SNS friend recommended by the blockchain membership node recommends a second SNS friend, a weight is given to the membership grade of the blockchain member.

### Claim 6 (depends on 1)

The method of claim 1, further comprising a transaction processing step in which when a cryptocurrency transaction occurs between blockchain members recommended, the PoX blockchain platform server creates a transaction processing request transaction in a blockchain network processing server.

### Claim 7

A blockchain-based cryptocurrency transaction system, comprising:
at least one blockchain holder node;
a platform server configuring and storing a member terminal group and configured to allow a blockchain transaction between terminals included in the member terminal group and not to allow a blockchain transaction with a terminal not included in the member terminal group;
a first terminal included in the member terminal group; and
at least one second terminal connected with the first terminal via the platform server, wherein
the first terminal transmits a recommendation request including an identity (ID) of the at least one second terminal to the platform server, wherein
in response to the recommendation request, the platform server includes the second terminal corresponding to the ID in the member terminal group and transmits an amount of cryptocurrency corresponding to a number of IDs received from the first terminal, wherein
when a blockchain transaction occurs between the first terminal and the second terminal, a processing request including the blockchain transaction is transmitted to the platform server, wherein
in response to the processing request, the platform server transmits the blockchain transaction to the at least one blockchain holder node, wherein
the at least one blockchain holder node verifies validity of the blockchain transaction according to a blockchain algorithm and transmits a result of the verification to the platform server, and the platform server confirms the blockchain transaction.