A computer-readable recording medium is disclosed that stores a file sharing program causing a computer connected to a network of nodes and sharing a file with the nodes in a decentralized manner to execute a method including the steps of: checking the number of approvals by nodes approving a change application for changing the profile information of the file stored in the storage part of the computer upon receiving the change application; promoting the change application to a change instruction to change the profile information, propagating the change instruction to another node, and changing the profile information, if the number of the approvals by the approving nodes and an approval by the computer exceeds a predetermined amount; and propagating the change application to the other node if the number of the approvals by the approving nodes and the approval by the computer does not exceed the predetermined amount.