Qeditas is a project to apply block chain technology to support the construction of a library of formalized mathematics.
It is intended to be a realization (or possibly revival) of the QED project, as described in the QED Manifesto.
The current plan was to take a snapshot of the Bitcoin block chain up to (not including) the block at height 350,000. At that point 2/3 of the Bitcoin distribution was complete. This block should be published on (approximately) March 31, 2015. If you had bitcoins under your (sole) control, then you have a corresponding initial distribution in Qeditas. Your part of the initial distribution is easiest to claim if it is in an ordinary pay-to-public-key-hash (p2pkh) address.