"[1] OFFS development started within the hacktivism group The Big Hack in 2003 by the hackers Cheater512, CaptainMorgan, Aqlo and WhiteRaven.

In 2004, a rudimentary version was finished, written in PHP, which was distributed as two demo CDs.

Following these, SpectralMorning re-implemented the functionality in 2004 in C++, which led to the current "mainline" OFFS client.

On August 14, 2006, CaptainMorgan posted a letter of "closing" addressed to the "Copyright Industry Associations of America", such as the RIAA and MPAA, stating that they have created OFFS with the purpose of ending "all of your problems with consumer copyright infringement.

"[2] Today we announce a massively distributed copy-less file system.

On April 11, 2008, a beta test was held[3] with a network size of over 100 nodes.

[4] The client OFFLoad is a fork from mainline OFFS, which seemingly adds no features.

Another distantly related program is Monolith, which uses a similar principle to OFFS.

The OFF System is a kind of anonymous, fully decentralized P2P file sharing program and network.

In order to store a file into the local OFFS storage, resp.

Therefore, this method has a higher degree of efficiency than traditional, forwarding-based anonymous P2P systems.

The forwarding method requires that a data block is uploaded and downloaded several times before it reaches its destination, which happens between 5 and 15 times.,[6] which, according to the resulting formula