Distributed and collaborative data processing among computer devices

A computer system, comprising:

• one or more processors;
• and
• memory storing one or more programs for execution by the one or more processors, the one or more programs further comprising instructions for:
• obtaining a first data block;
• generating a set of first features of the first data block;
• obtaining a second data block, independently of obtaining the first data block;
• generating a set of second features of the second data block;
• associating the first data block with the second data block, including determining that both the first data block and the second data block belong to a file;
• and
• in accordance with an association of the first data block with the second data block, generating one or more third features of the file based on the set of first features and the set of second features.

A non-transitory computer-readable storage medium, storing one or more programs for execution by one or more processors, the one or more programs further comprising instructions for:

• obtaining a first data block;
• generating a set of first features of the first data block;
• obtaining a second data block, independently of obtaining the first data block;
• generating a set of second features of the second data block;
• associating the first data block with the second data block, including determining that both the first data block and the second data block belong to a file;
• and
• in accordance with an association of the first data block with the second data block, generating one or more third features of the file based on the set of first features and the set of second features.