Method and system for secure cloud data storage and retrieval

A system for distributed data storage of a file across a plurality of data storage nodes comprising:

• a user device connectable to a network and comprising a user computer processor and user device electronic storage having user device software stored therein, the user computer processor operable to execute the user device software;
• a server connectable to the network and the plurality of data storage nodes and comprising a server second computer processor and server electronic storage having server software stored therein, the server computer processor operable to execute the server software;
• the user device and server operable to exchange messages and data over the network;
• the user device software comprising instructions to configure the user computer processor to perform the steps of:
• dividing the file into a plurality of chunks, wherein the chunks can be combined in a reassembly sequence to recreate the file;
• sending each respective chunk to a server;
• receiving from the server a respective chunk retrieval data item for each sent chunk;
• and
• storing file retrieval data in an independent node verification network (“INVN”), the file retrieval data comprising the chunk retrieval data item for each respective chunk and reassembly data sufficient to determine the reassembly sequence;
• the server software comprising instructions to configure the server processor to perform the steps of:
• receiving a respective chunk from the user device;
• sending the received chunk to a particular data storage node in the plurality of data storage nodes and receiving in response from the particular data storage node a data retrieval address;
• and
• sending to the user device after successful storage of the received chunk at the particular data storage node the chunk retrieval data item for the received chunk, the chunk retrieval data item comprising the data retrieval address from the particular data storage node.