Control method, control device, and recording medium

Control method, control device, and recording medium

A control method is executed by a first node holding a first distributed ledger in which a first blockchain is managed, and includes: obtaining, from a second node, a second blockchain managed by a second distributed ledger held by the second node, and comparing the second blockchain with the first...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Nishida, Naohisa, Unagami, Yuji
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:A control method is executed by a first node holding a first distributed ledger in which a first blockchain is managed, and includes: obtaining, from a second node, a second blockchain managed by a second distributed ledger held by the second node, and comparing the second blockchain with the first blockchain; updating the first blockchain by adding the greater of at least one first different block contained in the first blockchain but not the second blockchain and at least one second different block contained in the second blockchain but not the first blockchain, after at least one common block, and adding at least one additional block containing at least one instance of transaction data contained in the lesser; and determining whether at least two instances of transaction data each containing at least two instances of contract information that conflict with each other are contained in the updated first blockchain.