With the increase of the aging population, the old-age care industry faces new challenges. Mutual support for the elderly as a new model of old-age care has attracted much attention. Although Time Banks have provided a mutual assistance pension solution, still, there are some problems. This paper combines the blockchain with the time bank to build a blockchain time bank, and solves the problems faced by the current time banks. At the same time, the article innovates the mutual help pension model and broadens the user base and participating institutions, which makes the pension system more complete and rich.
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