BLOCKCHAIN SYSTEM, REGISTRATION DEVICE, DEGREE OF CONTRIBUTION COMPUTATION DEVICE, DEGREE OF CONTRIBUTION COMPUTATION METHOD, AND DEGREE OF CONTRIBUTION COMPUTATION PROGRAM

WIPO Patent Application WO/2020/158404

A1

An objective of the present invention is to compute a degree of contribution of content corresponding to a content purchase situation. Provided is a blockchain system comprising a registration device 1 and a degree of contribution computation device 2. The registration device 1 comprises: an acquisition unit 15 which acquires content purchase information; and a transaction issuance unit 13 which, on the basis of the content purchase information, issues a transaction which includes a purchaser ID and a content ID. The degree of contribution computation device 2 comprises: a history acquisition unit 24 which acquires, from a distributed ledger in which the transaction is reflected, history information in which a purchaser having the purchaser ID has purchased content of a different type which is associated with the content ID; and a degree of contribution computation unit 25 which, using the history information, computes a degree of contribution of the content corresponding to a purchase sequence of the content which is associated with the content ID.

WO/2006/068244	RANKING SERVER
JP2002044585	LECTURE RECORDING AND REPRODUCING METHOD USING COMPUTER
WO/2023/113050	ENVIRONMENT MANAGEMENT SYSTEM AND ENVIRONMENT MANAGEMENT METHOD BASED ON GEOFENCE

ISHIDA TATSURO (JP)
NAKADAIRA ATSUSHI (JP)
FUJIMURA SHIGERU (JP)
OHASHI SHIGENORI (JP)
WATANABE HIROKI (JP)

PCT/JP2020/001186

August 06, 2020

January 16, 2020

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NIPPON TELEGRAPH & TELEPHONE (JP)

G06Q50/10

WO2019004118A1

2019-01-03

JP2012532371A	2012-12-13
JP2005025559A	2005-01-27
JP2017204070A	2017-11-16
JP2013008197A	2013-01-10

MIYOSHI Hidekazu et al. (JP)

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