Preventing data loss using parity checks

[JPL]

Is it this one?

Introduction to MaidSafe: what it is, how it works, and how it compares to Bitcoin

First of all: Great post @eblanshey !! Thank u very much for that. So, only 28 nodes (pieces) are needed to recreate the chunk that was dispersed into 32 pieces and sent to 32 nodes? Is this the same trick PAR files use to fix a broken file on usenet?